21cm cosmology in the 21st century

Reports on Progress in Physics

Volumn 75, Issue 8, 2012, Pages

  Pritchard, Jonathan R ^a   Loeb, Abraham ^a  

^a HARVARD UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ASTRONOMY; METHODOLOGY; MOLECULAR IMAGING; REVIEW; TELESCOPE;

ASTRONOMY; MOLECULAR IMAGING; TELESCOPES;

EID: 84864609690     PISSN: 00344885     EISSN: None     Source Type: Journal    
DOI: 10.1088/0034-4885/75/8/086901     Document Type: Review

References (202)

1. Santos M G, Amblard A, Pritchard J, Trac H, Cen R and Cooray A 2008 Cosmic reionization and the 21 cm signal: comparison between an analytical model and a simulation Astrophys. J. 689 1-16
2. Pritchard J and Loeb A 2010 Cosmology: hydrogen was not ionized abruptly Nature 468 772-3
3. Komatsu E et al 2011 Seven-year Wilkinson Microwave Anisotropy Probe (WMAP) observations: cosmological interpretation Astrophys. J. Suppl. 192 18
4. Furlanetto S R, Oh S P and Briggs F H 2006 Cosmology at low frequencies: the 21 cm transition and the high-redshift Universe Phys. Rep. 433 181-301 (Pubitemid 44480725)
5. Morales M F and Wyithe J S B 2010 Reionization and cosmology with 21-cm fluctuations Annu. Rev. Astron. Astrophys. 48 127-71
6. Goldenberg H M, Kleppner D and Ramsey N F 1960 Atomic hydrogen maser Phys. Rev. Lett. 5 361-2
7. van de Hulst H C 1945 Radiogolven uit het Wereldruim (Radio waves from space) Ned. Tijdschr. Natuurkd. 11 210-21
8. Ewen H I and Purcell E M 1951 Observation of a line in the galactic radio spectrum: radiation from galactic hydrogen at 1,420 Mc./sec Nature 168 356
9. Kanekar N, Chengalur J N and Lane W M 2007 H 21-cm absorption at z 3.39 towards PKS 0201 + 113 Mon. Not. R. Astron. Soc. 375 1528-36
10. 2 and deuterium absorption at z > 3 along the line of sight to J1337 + 3152 Mon. Not. R. Astron. Soc. 405 1888-900
11. + as a probe of the intergalactic medium arXiv:0905.1698
12. + 8.7 GHz hyperfine absorption Phys. Rev. D 80 063010
13. Sigurdson K and Furlanetto S R 2006 Measuring the primordial deuterium abundance during the cosmic dark ages Phys. Rev. Lett. 97 091301 (Pubitemid 44385041)
14. Rybicki G B and Lightman A P 1986 Radiative Processes in Astrophysics (New York: Wiley)
15. Sobolev V V 1957 The diffusion of Lα radiation in nebulae and stellar envelopes Sov. Astron. 1 678
16. Field G B 1958 Excitation of the hydrogen 21 cm line Proc. IRE 46 240
17. Allison A C and Dalgarno A 1969 Spin change in collisions of hydrogen atoms Astrophys. J. 158 423
18. Zygelman B 2005 Hyperfine level-changing collisions of hydrogen atoms and tomography of the dark age Universe Astrophys. J. 622 1356-62 (Pubitemid 40758448)
19. Furlanetto S R and Furlanetto M R 2007 Spin-exchange rates in electron-hydrogen collisions Mon. Not. R. Astron. Soc. 374 547-55
20. Furlanetto S R and Furlanetto M R 2007 Spin exchange rates in proton-hydrogen collisions Mon. Not. R. Astron. Soc. 379 130-4
21. Kuhlen M, Madau P and Montgomery R 2006 The spin temperature and 21 cm brightness of the intergalactic medium in the pre-reionization era Astrophys. J. 637 L1-L4 (Pubitemid 43293222)
22. Liszt H 2001 The spin temperature of warm interstellar H Astron. Astrophys. 371 698-707
23. Hirata C M and Sigurdson K 2007 The spin-resolved atomic velocity distribution and 21-cm line profile of dark-age gas Mon. Not. R. Astron. Soc. 375 1241-64
24. Wouthuysen S A 1952 On the excitation mechanism of the 21-cm (radio-frequency) interstellar hydrogen emission line Astrophys. J. 57 31
25. Pritchard J R and Furlanetto S R 2006 Descending from on high: Lyman-series cascades and spin-kinetic temperature coupling in the 21-cm line Mon. Not. R. Astron. Soc. 367 1057-66 (Pubitemid 43488058)
26. Meiksin A 2000 Detecting the epoch of first light in 21-CM radiation Perspectives on Radio Astronomy: Science with Large Antennae Arrays ed M P van Harlem (Dwingeloo: ASTRON) p 37
27. Rybicki G B 2006 Improved Fokker-Planck equation for resonance-line scattering Astrophys. J. 647 709-18 (Pubitemid 44352106)
28. Field G B 1959 The time relaxation of a resonance-line profile Astrophys. J. 129 551
29. Chen X and Miralda-Escudé J 2004 The spin-kinetic temperature coupling and the heating rate due to Lyα scattering before reionization: predictions for 21 centimeter emission and absorption Astrophys. J. 602 1-11 (Pubitemid 38430184)
30. Hirata C M 2006 Wouthuysen-field coupling strength and application to high-redshift 21-cm radiation Mon. Not. R. Astron. Soc. 367 259-74 (Pubitemid 43384592)
31. Chuzhoy L and Shapiro P R 2007 Heating and cooling of the early intergalactic medium by resonance photons Astrophys. J. 655 843-6
32. Furlanetto S R and Pritchard J R 2006 The scattering of Lyman-series photons in the intergalactic medium Mon. Not. R. Astron. Soc. 372 1093-1103 (Pubitemid 44601350)
33. Loeb A and Zaldarriaga M 2004 Measuring the small-scale power spectrum of cosmic density fluctuations through 21 cm tomography prior to the epoch of structure formation Phys. Rev. Lett. 92 211301
34. Barkana R and Loeb A 2005 Detecting the earliest galaxies through two new sources of 21 centimeter fluctuations Astrophys. J. 626 1-11 (Pubitemid 41020986)
35. Chen X and Miralda-Escude J 2008 The 21 cm signature of the first stars Astrophys. J. 684 18-33
36. Santos M G and Cooray A 2006 Cosmological and astrophysical parameter measurements with 21-cm anisotropies during the era of reionization Phys. Rev. D 74 083517 (Pubitemid 44654534)
37. Furlanetto S R, Zaldarriaga M and Hernquist L 2004 The growth of H regions during reionization Astrophys. J. 613 1-15 (Pubitemid 39453671)
38. Nusser A 2005 The spin temperature of neutral hydrogen during cosmic pre-reionization Mon. Not. R. Astron. Soc. 359 183-90 (Pubitemid 40653329)
39. Kuhlen M and Madau P 2005 The first miniquasar Mon. Not. R. Astron. Soc. 363 1069-82 (Pubitemid 41634967)
40. Furlanetto S R and Loeb A 2004 Large-scale structure shocks at low and high redshifts Astrophys. J. 611 642-54 (Pubitemid 39383525)
41. Geil P M and Wyithe J S B 2009 Modification of the 21-cm power spectrum by quasars during the epoch of reionization Mon. Not. R. Astron. Soc. 399 1877-87
42. Seager S, Sasselov D D and Scott D 1999 A new calculation of the recombination epoch Astrophys. J. 523 L1-5
43. Miralda-Escudé J, Haehnelt M and Rees M J 2000 Reionization of the inhomogeneous Universe Astrophys. J. 530 1-16
44. Bromm V, Kudritzki R P and Loeb A 2001 Generic spectrum and ionization efficiency of a heavy initial mass function for the first stars Astrophys. J. 552 464-72
45. Zackrisson E, Rydberg C-E, Schaerer D, Östlin G and Tuli M 2011 The spectral evolution of the first galaxies: I. James Webb Space Telescope detection limits and color criteria for Population III galaxies Astrophys. J. 740 13
46. Barkana R and Loeb A 2001 In the beginning: the first sources of light and the reionization of the Universe Phys. Rep. 349 125-238 (Pubitemid 33402588)
47. Sheth R K and Tormen G 1999 Large-scale bias and the peak background split Mon. Not. R. Astron. Soc. 308 119-26
48. Pawlik A H, Schaye J and van Scherpenzeel E 2009 Keeping the Universe ionized: photoheating and the clumping factor of the high-redshift intergalactic medium Mon. Not. R. Astron. Soc. 394 1812-24
49. Bolton J S and Becker G D 2009 Resolving the high redshift Lyα forest in smoothed particle hydrodynamics simulations Mon. Not. R. Astron. Soc. 398 L26-L30
50. Furlanetto S R and Oh S P 2005 Taxing the rich: recombinations and bubble growth during reionization Mon. Not. R. Astron. Soc. 363 1031-48 (Pubitemid 41528017)
51. Naoz S and Barkana R 2005 Growth of linear perturbations before the era of the first galaxies Mon. Not. R. Astron. Soc. 362 1047-53 (Pubitemid 41337303)
52. Madau P, Meiksin A and Rees M J 1997 21 centimeter tomography of the intergalactic medium at high redshift Astrophys. J. 475 429
53. Venkatesan A, Giroux M L and Shull J M 2001 Heating and ionization of the intergalactic medium by an early x-ray background Astrophys. J. 563 1-8 (Pubitemid 33576911)
54. Pritchard J R and Furlanetto S R 2007 21-cm fluctuations from inhomogeneous x-ray heating before reionization Mon. Not. R. Astron. Soc. 376 1680-94
55. Zaroubi S, Thomas R M, Sugiyama N and Silk J 2007 Heating of the intergalactic medium by primordial miniquasars Mon. Not. R. Astron. Soc. 375 1269-79
56. Ciardi B, Salvaterra R and Di Matteo T 2010 Lyα versus x-ray heating in the high-z intergalactic medium Mon. Not. R. Astron. Soc. 401 2635-40
57. Shull J M and van Steenberg M E 1985 X-ray secondary heating and ionization in quasar emission-line clouds Astrophys. J. 298 268-74
58. Valdés M and Ferrara A 2008 The energy cascade from warm dark matter decays Mon. Not. R. Astron. Soc. 387 L8-L12
59. Furlanetto S R and Stoever S J 2010 Secondary ionization and heating by fast electrons Mon. Not. R. Astron. Soc. 404 1869-78
60. Verner D A, Ferland G J, Korista K T and Yakovlev D G 1996 Atomic data for astrophysics: II. New analytic FITS for photoionization cross sections of atoms and ions Astrophys. J. 465 487 (Pubitemid 126087914)
61. Oh S P 2001 Reionization by hard photons: I. X-rays from the first star clusters Astrophys. J. 553 499-512 (Pubitemid 33291666)
62. Glover S C O and Brand P W J L 2003 Radiative feedback from an early x-ray background Mon. Not. R. Astron. Soc. 340 210-26 (Pubitemid 37268535)
63. Furlanetto S R 2006 The global 21-centimeter background from high redshifts Mon. Not. R. Astron. Soc. 371 867-78 (Pubitemid 44385386)
64. Grimm H-J, Gilfanov M and Sunyaev R 2003 High-mass x-ray binaries as a star formation rate indicator in distant galaxies Mon. Not. R. Astron. Soc. 339 793-809 (Pubitemid 37282165)
65. X-SFR relation in star-forming galaxies Mon. Not. R. Astron. Soc. 347 L57-L60 (Pubitemid 38131297)
66. Lehmer B D, Alexander D M, Bauer F E, Brandt W N, Goulding A D, Jenkins L P, Ptak A and Roberts T P 2010 A Chandra perspective on galaxy-wide x-ray binary emission and its correlation with star formation rate and stellar mass: new results from luminous infrared galaxies Astrophys. J. 724 559-71
67. Mineo S, Gilfanov M and Sunyaev R 2011 The collective x-ray luminosity of HMXB as a SFR indicator Astron. Nachr. 332 349
68. Dijkstra M, Gilfanov M, Loeb A and Sunyaev R 2012 Constraints on the redshift evolution of the L X-SFR relation from the cosmic x-ray backgrounds Mon. Not. R. Astron. Soc. 421 213-23
69. Mirabel I F, Dijkstra M, Laurent P, Loeb A and Pritchard J R 2011 Stellar black holes at the dawn of the Universe Astron. Astrophys. 528 A149
70. Madau P, Rees M J, Volonteri M, Haardt F and Oh S P 2004 Early reionization by miniquasars Astrophys. J. 604 484-94 (Pubitemid 38726775)
71. Ricotti M and Ostriker J P 2004 X-ray pre-ionization powered by accretion on the first black holes: I. A model for the WMAP polarization measurement Mon. Not. R. Astron. Soc. 352 547-62 (Pubitemid 39015837)
72. Dijkstra M, Haiman Z and Loeb A 2004 A limit from the x-ray background on the contribution of quasars to reionization Astrophys. J. 613 646-54 (Pubitemid 39436438)
73. Chuzhoy L, Alvarez M A and Shapiro P R 2006 Recognizing the first radiation sources through their 21 cm signature Astrophys. J. 648 L1-L4 (Pubitemid 44414169)
74. Leitherer C, Schaerer D, Goldader J D, González Delgado R M, Robert C, Kune D F, de Mello D F, Devost D and Heckman T M 1999 Starburst99: synthesis models for galaxies with active star formation Astrophys. J. Suppl. 123 3-40
75. Shull J M 1979 Heating and ionization by x-ray photoelectrons Astrophys. J. 234 761-4
76. Clark P C, Glover S C O, Klessen R S and Bromm V 2011 Gravitational fragmentation in turbulent primordial gas and the initial mass function of Population III stars Astrophys. J. 727 110
77. Caffau E et al 2011 An extremely primitive star in the galactic halo Nature 477 67-9
78. Bromm V and Loeb A 2003 The formation of the first low-mass stars from gas with low carbon and oxygen abundances Nature 425 812-4 (Pubitemid 37351460)
79. Pritchard J R and Loeb A 2008 Evolution of the 21 cm signal throughout cosmic history Phys. Rev. D 78 103511
80. Chen X and Kamionkowski M 2004 Particle decays during the cosmic dark ages Phys. Rev. D 70 043502
81. Furlanetto S R, Oh S P and Pierpaoli E 2006 Effects of dark matter decay and annihilation on the high-redshift 21 cm background Phys. Rev. D 74 103502 (Pubitemid 44665797)
82. Valdés M, Ferrara A, Mapelli M and Ripamonti E 2007 Constraining dark matter through 21-cm observations Mon. Not. R. Astron. Soc. 377 245-52
83. Belikov A V and Hooper D 2009 How dark matter reionized the Universe Phys. Rev. D 80 035007
84. Slatyer T R, Padmanabhan N and Finkbeiner D P 2009 CMB constraints on WIMP annihilation: energy absorption during the recombination epoch Phys. Rev. D 80 043526
85. Cumberbatch D T, Lattanzi M and Silk J 2010 Signatures of clumpy dark matter in the global 21 cm background signal Phys. Rev. D 82 103508
86. Finkbeiner D P, Padmanabhan N and Weiner N 2008 CMB and 21-cm signals for dark matter with a long-lived excited state Phys. Rev. D 78 063530
87. Mack K J and Wesley D H 2008 Primordial black holes in the dark ages: observational prospects for future 21 cm surveys arXiv:0805.1513
88. Ricotti M, Ostriker J P and Mack K J 2008 Effect of primordial black holes on the cosmic microwave background and cosmological parameter estimates Astrophys. J. 680 829-45
89. Brandenberger R H, Danos R J, Hernández O F and Holder G P 2010 The 21 cm signature of cosmic string wakes J. Cosmol. Astropart. Phys. JCAP12(2010)028
90. Chippendale A P, Subrahmanyan E and Ekers R 2005 The cosmological reionization experiment New Techniques and Results in Low Frequency Radio Astronomy (Hobart, Australia, 6-10 Dec. 2005)
91. Bowman J D, Rogers A E E and Hewitt J N 2008 Toward empirical constraints on the global redshifted 21 cm brightness temperature during the epoch of reionization Astrophys. J. 676 1-9
92. Bowman J D and Rogers A E E 2010 A lower limit of Δz 0.06 for the duration of the reionization epoch Nature 468 796-8
93. Subrahmanyan R 2011 private communication
94. Tingay S 2011 private communication
95. Greenhill L 2011 private communication
96. Eisenstein D J, Hu W and Tegmark M 1999 Cosmic complementarity: joint parameter estimation from cosmic microwave background experiments and redshift surveys Astrophys. J. 518 2-23
97. Pritchard J R and Loeb A 2010 Constraining the unexplored period between the dark ages and reionization with observations of the global 21-cm signal Phys. Rev. D 82 023006
98. Morandi A and Barkana R 2011 Studying cosmic reionization with observations of the global 21 cm signal arXiv:1102.2378
99. Burns J O, Lazio T J W, Bale S D, Bowman J D, Bradley R F, Carilli C L, Furlanetto S R, Harker G J A, Loeb A and Pritchard J R 2012 Probing the first stars and black holes in the early Universe with the Dark Ages Radio Explorer (DARE) Adv. Space Res. 49 433-50
100. Harker G J A, Pritchard J R, Burns J O and Bowman J D 2012 An MCMC approach to extracting the global 21-cm signal during the cosmic dawn from sky-averaged radio observations Mon. Not. R. Astron. Soc. 419 1070-84
101. Morales M F and Hewitt J 2004 Toward epoch of reionization measurements with wide-field radio observations Astrophys. J. 615 7-18 (Pubitemid 40005067)
102. Bharadwaj S and Ali S S 2004 The cosmic microwave background radiation fluctuations from H perturbations prior to reionization Mon. Not. R. Astron. Soc. 352 142-6 (Pubitemid 38939497)
103. McQuinn M, Zahn O, Zaldarriaga M, Hernquist L and Furlanetto S R 2006 Cosmological parameter estimation using 21 cm radiation from the epoch of reionization Astrophys. J. 653 815-34
104. Barkana R and Loeb A 2005 A method for separating the physics from the astrophysics of high-redshift 21 centimeter fluctuations Astrophys. J. 624 L65-8 (Pubitemid 40763690)
105. Wang X and Hu W 2006 Redshift space 21 cm power spectra from reionization Astrophys. J. 643 585-97 (Pubitemid 44199041)
106. Mellema G, Iliev I T, Pen U-L and Shapiro P R 2006 Simulating cosmic reionization at large scales: II. The 21-cm emission features and statistical signals Mon. Not. R. Astron. Soc. 372 679-92 (Pubitemid 44564183)
107. Shaw J R and Lewis A 2008 Nonlinear redshift-space power spectra Phys. Rev. D 78 103512
108. Mao Y, Shapiro P R, Mellema G, Iliev I T, Koda J and Ahn K 2011 Redshift space distortion of the 21 cm background from the epoch of reionization: I. Methodology re-examined arXiv:1104.2094
109. Barkana R and Loeb A 2004 Unusually large fluctuations in the statistics of galaxy formation at high redshift Astrophys. J. 609 474-81 (Pubitemid 38977009)
110. Press W H and Schechter P 1974 Formation of galaxies and clusters of galaxies by self-similar gravitational condensation Astrophys. J. 187 425-38
111. Bond J R, Cole S, Efstathiou G and Kaiser N 1991 Excursion set mass functions for hierarchical Gaussian fluctuations Astrophys. J. 379 440-60
112. Zahn O, Lidz A, McQuinn M, Dutta S, Hernquist L, Zaldarriaga M and Furlanetto S R 2007 Simulations and analytic calculations of bubble growth during hydrogen reionization Astrophys. J. 654 12-26
113. Zahn O, Mesinger A, McQuinn M, Trac H, Cen R and Hernquist L E 2011 Comparison of reionization models: radiative transfer simulations and approximate, seminumeric models Mon. Not. R. Astron. Soc. 414 727-38
114. Scannapieco E and Barkana R 2002 An analytical approach to inhomogeneous structure formation Astrophys. J. 571 585-603 (Pubitemid 37117731)
115. Barkana R 2007 On correlated random walks and 21-cm fluctuations during cosmic reionization Mon. Not. R. Astron. Soc. 376 1784-92
116. Santos M G, Silva M B, Pritchard J R, Cen R and Cooray A 2011 Probing the first galaxies with the Square Kilometer array Astron. Astrophys. 527 A93
117. Chuzhoy L and Zheng Z 2007 Radiative transfer effect on ultraviolet pumping of the 21 cm line in the high-redshift Universe Astrophys. J. 670 912-18
118. Semelin B, Combes F and Baek S 2007 Lyman-alpha radiative transfer during the epoch of reionization: contribution to 21-cm signal fluctuations Astron. Astrophys. 474 365-74 (Pubitemid 350006549)
119. Naoz S and Barkana R 2008 Detecting early galaxies through their 21-cm signature Mon. Not. R. Astron. Soc. 385 L63-L67
120. Alvarez M A, Pen U-L and Chang T-C 2010 Enhanced detectability of pre-reionization 21 cm structure Astrophys. J. 723 L17-L21
121. Barkana R and Loeb A 2005 Probing the epoch of early baryonic infall through 21-cm fluctuations Mon. Not. R. Astron. Soc. 363 L36-L40
122. Iliev I T, Shapiro P R, Ferrara A and Martel H 2002 On the direct detectability of the cosmic dark ages: 21 centimeter emission from minihalos Astrophys. J. 572 L123-6 (Pubitemid 37083889)
123. Iliev I T, Scannapieco E, Martel H and Shapiro P R 2003 Non-linear clustering during the cosmic dark ages and its effect on the 21-cm background from minihaloes Mon. Not. R. Astron. Soc. 341 81-90 (Pubitemid 37272919)
124. Furlanetto S R and Oh S P 2006 Redshifted 21 cm emission from minihalos before reionization Astrophys. J. 652 849-56
125. Shapiro P R, Ahn K, Alvarez M A, Iliev I T, Martel H and Ryu D 2006 The 21 cm background from the cosmic dark ages: minihalos and the intergalactic medium before reionization Astrophys. J. 646 681-90 (Pubitemid 44297883)
126. Tseliakhovich D and Hirata C 2010 Relative velocity of dark matter and baryonic fluids and the formation of the first structures Phys. Rev. D 82 083520
127. Tseliakhovich D, Barkana R and Hirata C M 2011 Suppression and spatial variation of early galaxies and minihaloes Mon. Not. R. Astron. Soc. 418 906-15
128. Dalal N, Pen U-L and Seljak U 2010 Large-scale BAO signatures of the smallest galaxies J. Cosmol. Astropart. Phys. JCAP11(2010)007
129. Stacy A, Bromm V and Loeb A 2011 Effect of streaming motion of baryons relative to dark matter on the formation of the first stars Astrophys. J. 730 L1
130. Maio U, Koopmans L V E and Ciardi B 2011 The impact of primordial supersonic flows on early structure formation, reionization and the lowest-mass dwarf galaxies Mon. Not. R. Astron. Soc. 412 L40-L44
131. Babich D and Loeb A 2006 Imprint of inhomogeneous reionization on the power spectrum of galaxy surveys at high redshifts Astrophys. J. 640 1-7 (Pubitemid 43502131)
132. Pritchard J R, Furlanetto S R and Kamionkowski M 2007 Galaxy surveys, inhomogeneous re-ionization and dark energy Mon. Not. R. Astron. Soc. 374 159-67 (Pubitemid 44973781)
133. Wyithe J S B and Loeb A 2007 The imprint of cosmic reionization on galaxy clustering Mon. Not. R. Astron. Soc. 382 921-36
134. Dopita M A, Krauss L M, Sutherland R S, Kobayashi C and Lineweaver C H 2011 Re-ionizing the Universe without stars Astrophys. Space. Sci. 335 345-52
135. Trac H and Gnedin N Y 2011 Computer simulations of cosmic reionization Adv. Sci. Lett. 4 228-43
136. McQuinn M, Lidz A, Zahn O, Dutta S, Hernquist L and Zaldarriaga M 2007 The morphology of H regions during reionization Mon. Not. R. Astron. Soc. 377 1043-63
137. Mesinger A, Furlanetto S and Cen R 2011 21CMFAST: a fast, seminumerical simulation of the high-redshift 21-cm signal Mon. Not. R. Astron. Soc. 411 955-72
138. Santos M G, Ferramacho L, Silva M B, Amblard A and Cooray A 2011 Fast large volume simulations of the 21-cm signal from the reionization and pre-reionization epochs Mon. Not. R. Astron. Soc. 406 2421-32
139. Thomas R M et al 2009 Fast large-scale reionization simulations Mon. Not. R. Astron. Soc. 393 32-48
140. Trac H and Cen R 2007 Radiative transfer simulations of cosmic reionization: I. Methodology and initial results Astrophys. J. 671 1-13
141. Partl A M, Maselli A, Ciardi B, Ferrara A and Müller V 2011 Enabling parallel computing in CRASH Mon. Not. R. Astron. Soc. 414 428-44
142. Trac H, Cen R and Loeb A 2008 Imprint of inhomogeneous hydrogen reionization on the temperature distribution of the intergalactic medium Astrophys. J. 689 L81-L84
143. Baek S, Di Matteo P, Semelin B, Combes F and Revaz Y 2009 The simulated 21 cm signal during the epoch of reionization: full modeling of the Ly-α pumping Astron. Astrophys. 495 389-405
144. Baek S, Semelin B, Di Matteo P, Revaz Y and Combes F 2010 Reionization by UV or x-ray sources Astron. Astrophys. 523 A4
145. Lidz A, Zahn O, McQuinn M, Zaldarriaga M and Hernquist L 2008 Detecting the rise and fall of 21 cm fluctuations with the Murchison Widefield Array Astrophys. J. 680 962-74
146. McQuinn M, Zahn O, Zaldarriaga M, Hernquist L and Furlanetto S R 2006 Cosmological parameter estimation using 21 cm radiation from the epoch of reionization Astrophys. J. 653 815-34
147. Maldacena J 2003 Non-Gaussian features of primordial fluctuations in single field inflationary models J. High Energy Phys. JHEP05(2003)013
148. Komatsu E et al 2009 Five-year Wilkinson Microwave Anisotropy Probe observations: cosmological interpretation Astrophys. J. Suppl. 180 330-76
149. Cooray A 2006 21-cm background anisotropies can discern primordial non-Gaussianity Phys. Rev. Lett. 97 261301 (Pubitemid 46135012)
150. Pillepich A, Porciani C and Matarrese S 2007 The bispectrum of redshifted 21 centimeter fluctuations from the dark ages Astrophys. J. 662 1-14
151. Harker G J A et al 2009 Detection and extraction of signals from the epoch of reionization using higher-order one-point statistics Mon. Not. R. Astron. Soc. 393 1449-58
152. Friedrich M M, Mellema G, Alvarez M A, Shapiro P R and Iliev I T 2011 Topology and sizes of H II regions during cosmic reionization Mon. Not. R. Astron. Soc. 413 1353-72
153. Lee K-G and Spergel D N 2011 Threshold probability functions and thermal inhomogeneities in the Lyα forest Astrophys. J. 734 21
154. Joudaki S, Doré O, Ferramacho L, Kaplinghat M and Santos M G 2011 Primordial non-Gaussianity from the 21 cm power spectrum during the epoch of reionization Phys. Rev. Lett. 107 131304
155. Mao Y, Tegmark M, McQuinn M, Zaldarriaga M and Zahn O 2008 How accurately can 21 cm tomography constrain cosmology? Phys. Rev. D 78 023529
156. Barger V, Gao Y, Mao Y and Marfatia D 2009 Inflationary potential from 21 cm tomography and Planck Phys. Lett. B 673 173-8
157. Adshead P, Easther R, Pritchard J and Loeb A 2011 Inflation and the scale dependent spectral index: prospects and strategies J. Cosmol. Astropart. Phys. JCAP02(2011)021
158. Pritchard J R and Pierpaoli E 2008 Constraining massive neutrinos using cosmological 21 cm observations Phys. Rev. D 78 065009
159. Gordon C and Pritchard J R 2009 Forecasted 21 cm constraints on compensated isocurvature perturbations Phys. Rev. D 80 063535
160. Jester S and Falcke H 2009 Science with a lunar low-frequency array: from the dark ages of the Universe to nearby exoplanets New Astron. Rev. 53 1-26
161. Khatri R and Wandelt B D 2007 21-cm radiation: a new probe of variation in the fine-structure constant Phys. Rev. Lett. 98 111301 (Pubitemid 46434105)
162. Khatri R and Wandelt B D 2008 Cosmic (Super)string constraints from 21 cm radiation Phys. Rev. Lett. 100 091302 (Pubitemid 351399021)
163. Loeb A and Wyithe J S B 2008 Possibility of precise measurement of the cosmological power spectrum with a dedicated survey of 21 cm emission after reionization Phys. Rev. Lett. 100 161301 (Pubitemid 351574596)
164. Wyithe J S B and Loeb A 2008 Fluctuations in 21-cm emission after reionization Mon. Not. R. Astron. Soc. 383 606-14
165. Chang T-C, Pen U-L, Peterson J B and McDonald P 2008 Baryon acoustic oscillation intensity mapping of dark energy Phys. Rev. Lett. 100 091303 (Pubitemid 351399043)
166. Battye R A, Davies R D and Weller J 2004 Neutral hydrogen surveys for high-redshift galaxy clusters and protoclusters Mon. Not. R. Astron. Soc. 355 1339-47 (Pubitemid 40031333)
167. Visbal E, Loeb A and Wyithe S 2009 Cosmological constraints from 21 cm surveys after reionization J. Cosmol. Astropart. Phys. JCAP10(2009)030
168. Albrecht A et al 2006 Report of the Dark Energy Task Force arXiv:astro-ph/0609591
169. Wyithe J S B, Loeb A and Geil P M 2008 Baryonic acoustic oscillations in 21-cm emission: a probe of dark energy out to high redshifts Mon. Not. R. Astron. Soc. 383 1195-209
170. Wyithe J S B and Loeb A 2009 The 21-cm power spectrum after reionization Mon. Not. R. Astron. Soc. 397 1926-34
171. Chang T-C, Pen U-L, Bandura K and Peterson J B 2010 An intensity map of hydrogen 21-cm emission at redshift z0.8 Nature 466 463-5
172. Barkana R and Loeb A 2000 Identifying the reionization redshift from the cosmic star formation rate Astrophys. J. 539 20-5
173. Righi M, Hernández-Monteagudo C and Sunyaev R A 2008 Carbon monoxide line emission as a CMB foreground: tomography of the star-forming Universe with different spectral resolutions Astron. Astrophys. 489 489-504
174. Visbal E, Trac H and Loeb A 2011 Demonstrating the feasibility of line intensity mapping using mock data of galaxy clustering from simulations J. Cosmol. Astropart. Phys. JCAP08(2011)010
175. Visbal E and Loeb A 2010 Measuring the 3D clustering of undetected galaxies through cross correlation of their cumulative flux fluctuations from multiple spectral lines J. Cosmol. Astropart. Phys. JCAP11(2010)016
176. Wang X, Tegmark M, Santos M G and Knox L 2006 21 cm tomography with foregrounds Astrophys. J. 650 529-37 (Pubitemid 44865483)
177. Liu A and Tegmark M 2011 A method for 21 cm power spectrum estimation in the presence of foregrounds Phys. Rev. D 83 103006
178. Carilli C L 2011 Intensity mapping of molecular gas during cosmic reionization Astrophys. J. 730 L30
179. Lidz A, Furlanetto S R, Oh S P, Aguirre J, Chang T-C, Doré O and Pritchard J R 2011 Intensity mapping with carbon monoxide emission lines and the redshifted 21 cm line Astrophys. J. 741 70
180. Gong Y, Cooray A, Silva M B, Santos M G and Lubin P 2011 Probing reionization with intensity mapping of molecular and fine-structure lines Astrophys. J. 728 L46
181. Obreschkow D, Heywood I, Klöckner H-R and Rawlings S 2009 A heuristic prediction of the cosmic evolution of the Co-luminosity functions Astrophys. J. 702 1321-35
182. Shetty R, Glover S C, Dullemond C P and Klessen R S 2011 Modelling CO emission: I. CO as a column density tracer and the X factor in molecular clouds Mon. Not. R. Astron. Soc. 412 1686-700
183. Sternberg A, Dalgarno A, Herbst E and Pei Y 2011 Molecular clouds at the reionization epoch EAS Publ. Ser. 52 43-6
184. Field G B 1959 An attempt to observe neutral hydrogen between the galaxies Astrophys. J. 129 525
185. Carilli C L, Gnedin N Y and Owen F 2002 H 21 centimeter absorption beyond the epoch of reionization Astrophys. J. 577 22-30 (Pubitemid 37094885)
186. Furlanetto S R and Loeb A 2002 The 21 centimeter forest: radio absorption spectra as probes of minihalos before reionization Astrophys. J. 579 1-9 (Pubitemid 37103653)
187. Mack K J and Wyithe J S B 2011 Detecting the redshifted 21 cm forest during reionization arXiv:1101.5431
188. Xu Y, Chen X, Fan Z, Trac H and Cen R 2009 The 21 cm forest as a probe of the reionization and the temperature of the intergalactic medium Astrophys. J. 704 1396-404
189. Xu Y, Ferrara A and Chen X 2011 The earliest galaxies seen in 21 cm line absorption Mon. Not. R. Astron. Soc. 410 2025-42
190. Furlanetto S R 2006 The 21-cm forest Mon. Not. R. Astron. Soc. 370 1867-75 (Pubitemid 44182071)
191. Xu Y, Ferrara A, Kitaura F S and Chen X 2010 Searching for the earliest galaxies in the 21 cm forest Sci. China Phys. Mech. Astron. 53 1124-9
192. Meiksin A 2011 The micro-structure of the intergalactic medium: I. The 21 cm signature from dynamical minihaloes Mon. Not. R. Astron. Soc. 417 1480-509
193. Mortlock D J et al 2011 A luminous quasar at a redshift of z = 7.085 Nature 474 616-9
194. Hopkins P F, Richards G T and Hernquist L 2007 An observational determination of the bolometric quasar luminosity function Astrophys. J. 654 731-53
195. Jiang L, Fan X, Ivezić Ž, Richards G T, Schneider D P, Strauss M A and Kelly B C 2007 The radio-loud fraction of quasars is a strong function of redshift and optical luminosity Astrophys. J. 656 680-90
196. Haiman Z, Quataert E and Bower G C 2004 Modeling the counts of faint radio-loud quasars: constraints on the supermassive black hole population and predictions for high redshift Astrophys. J. 612 698-705 (Pubitemid 39453748)
197. Willott C J et al 2010 The Canada-France High-z Quasar Survey: nine new quasars and the luminosity function at redshift 6 Astron. J. 139 906-18
198. Ioka K and Mészáros P 2005 Radio afterglows of gamma-ray bursts and hypernovae at high redshift and their potential for 21 centimeter absorption studies Astrophys. J. 619 684-96
199. de Souza R S, Yoshida N and Ioka K 2011 Populations III.1 and III.2 gamma-ray bursts: constraints on the event rate for future radio and x-ray surveys Astron. Astrophys. 533 A32
200. Campisi M A, Maio U, Salvaterra R and Ciardi B 2011 Population III stars and the long gamma-ray burst rate Mon. Not. R. Astron. Soc. 416 2760-7
201. Pritchard J R, Loeb A and Wyithe J S B 2010 Constraining reionization using 21-cm observations in combination with CMB and Lyα forest data Mon. Not. R. Astron. Soc. 408 57-70
202. Mitra S, Choudhury T R and Ferrara A 2011 Reionization constraints using principal component analysis Mon. Not. R. Astron. Soc. 413 1569-80