Observations of extended radio emission in clusters

Space Science Reviews

Volumn 134, Issue 1-4, 2008, Pages 93-118

  Ferrari, C ^a   Govoni, F ^b   Schindler, S ^a   Bykov, A M ^c   Rephaeli, Y ^d  

^a UNIVERSITY OF INNSBRUCK   (Austria)

^b INAF OSSERVATORIO ASTRONOMICO DI CAGLIARI   (Italy)

^c IOFFE INSTITUTE   (Russian Federation)

^d TEL AVIV UNIVERSITY   (Israel)

Author keywords

Acceleration of particles; Galaxies: clusters: general; Galaxies: intergalactic medium; Magnetic fields; Radiation mechanisms: non thermal; Radio continuum: general

Indexed keywords

HIGH ENERGY PHYSICS; MAGNETIC FIELDS; PARTICLE ACCELERATORS; RELATIVITY; SPACE RESEARCH;

GALAXIES: CLUSTERS: GENERAL; GALAXIES: INTERGALACTIC MEDIUM; NON THERMAL RADIATION MECHANISMS; RADIO CONTINUUM: GENERAL; RADIO MEASUREMENTS; SHOCK ACCELERATION;

GALAXIES;

EID: 43349084270     PISSN: 00386308     EISSN: 15729672     Source Type: Journal    
DOI: 10.1007/s11214-008-9311-x     Document Type: Article

References (182)

1. S.W. Allen, S. Ettori, A.C. Fabian, Mon. Not. R. Astron. Soc. 324, 877 (2001)
2. M. Arnaud, E. Pointecouteau, G.W. Pratt, Astron. Astrophys. 441, 893 (2005)
3. M. Bacchi, L. Feretti, G. Giovannini, F. Govoni, Astron. Astrophys. 400, 465 (2003)
4. J. Bagchi, T. Enßlin, F. Miniati et al., New Astron. 7, 249 (2002)
5. J. Bagchi, F. Durret, G.B. Lima Neto, S. Paul, Science 314, 791 (2006)
6. S.A. Baum, C.P. O'Dea, Mon. Not. R. Astron. Soc. 250, 737 (1991)
7. R. Beck, M. Krause, Astron. Nachr. 326, 414 (2005)
8. R. Beck, D. Sukurov, A., Sokoloff, R. Wielebinski, Astron. Astrophys. 411, 99 (2003)
9. V.S. Berezinsky, P. Blasi, V.S. Ptuskin, Astrophys. J. 487, 529 (1997)
10. P. Blasi, Astrophys. J. 532, L9 (2000)
11. P. Blasi, J. Korean Astron. Soc. 37, 483 (2004)
12. P. Blasi, S. Colafrancesco, Astrophys. Phys. 12, 169 (1999)
13. P. Blasi, S. Gabici, G. Brunetti, Int. J. Mod. Phys. A 22, 681 (2007)
14. G.R. Blumenthal, R.J. Gould, Rev. Mod. Phys. 42, 237 (1970)
15. H. Böhringer, P. Schuecker, L. Guzzo et al., Astron. Astrophys. 425, 367 (2004)
16. M.A. Brentjens, A.G. de Bruyn, Astron. Astrophys. 441, 1217 (2005)
17. M. Brüggen, H. Falcke, R. Beck et al., German LOFAR white paper, 2005. Available electronically at http://lofar.mpa-garching.mpg.de/glow.html
18. G. Brunetti, J. Korean Astron. Soc. 37, 493 (2004)
19. G. Brunetti, G. Setti, A. Comastri, Astron. Astrophys. 325, 898 (1997)
20. G. Brunetti, G. Setti, L. Feretti, G. Giovannini, Mon. Not. R. Astron. Soc. 320, 365 (2001)
21. G. Brunetti, P. Blasi, R. Cassano, S. Gabici, Mon. Not. R. Astron. Soc. 350, 1174 (2004)
22. G. Brunetti, T. Venturi, D. Dallacasa et al., Astrophys. J. 670, L5 (2007)
23. D.A. Buote, Astrophys. J. 553, L15 (2001)
24. D.A. Buote, in Merging Processes in Galaxy Clusters, ed. by L. Feretti, I.M. Gioia, G. Giovannini. Astrophys. Sp. Sc. Lib. (Kluwer), 272, 79 (2002)
25. D.A. Buote, J.C. Tsai, Astrophys. J. 458, 27 (1996)
26. B.J. Burn, Mon. Not. R. Astron. Soc. 133, 67 (1966)
27. J.O. Burns, M.E. Sulkanen, G.R. Gisler, R.A. Perley, Astrophys. J. 388, L49 (1992)
28. A.M. Bykov, H. Bloemen, Yu.A. Uvarov, Astron. Astrophys. 362, 886 (2000)
29. A.M. Bykov K. Dolag F. Durret 2008 Space Sci. Rev. 10.1007/s11214-008- 9312-9 A.M. Bykov, K. Dolag, F. Durret, Space Sci. Rev. (2008). doi: 10.1007/s11214-008-9312-9
30. C.L. Carilli, G.B. Taylor, Annu. Rev. Astron. Astrophys. 40, 319 (2002)
31. R. Cassano, G. Brunetti, Mon. Not. R. Astron. Soc. 357, 1313 (2005)
32. R. Cassano, G. Brunetti, G. Setti, Mon. Not. R. Astron. Soc. 369, 1577 (2006)
33. R. Cassano, G. Brunetti, G. Setti, F. Govoni, K. Dolag, Mon. Not. R. Astron. Soc. 378, 1565 (2007)
34. T.E. Clarke, J. Korean Astron. Soc. 37, 337 (2004)
35. T.E. Clarke, T.A. Enßlin, Astron. J. 131, 2900 (2006)
36. T.E. Clarke, P.P. Kronberg, H. Böhringer, Astrophys. J. 547, L111 (2001)
37. S. Colafrancesco, in Diffuse Tthermal and Relativistic Plasma in Galaxy Clusters, ed. by H. Böhringer, L. Feretti, P. Schuecker, MPE Rep. 271, 269 (1999). astro-ph/9907329
38. S. Colafrancesco, A. Dar, A. De Rújula, Astron. Astrophys. 413, 441 (2004)
39. J.J. Condon, W.D. Cotton, E.W. Greisen et al., Astron. J. 115, 1693 (1998)
40. B.M. Deiss, W. Reich, H. Lesch, R. Wielebinski, Astron. Astrophys. 321, 55 (1997)
41. K.M. Delain, L. Rudnick, Astron. Nachr. 327, 561 (2006)
42. B. Dennison, Astrophys. J. 239, L93 (1980)
43. T. Di Matteo, B. Ciardi, F. Miniati, Mon. Not. R. Astron. Soc. 355, 1053 (2004)
44. V.A. Dogiel, Astron. Astrophys. 357, 66 (2000)
45. K. Dolag, T.A. Enßlin, Astron. Astrophys. 362, 151 (2000)
46. K. Dolag, S. Schindler, Astron. Astrophys. 364, 491 (2000)
47. K. Dolag, A. Evrard, M. Bartelmann, Astron. Astrophys. 369, 36 (2001a)
48. K. Dolag, S. Schindler, F. Govoni, L. Feretti, Astron. Astrophys. 378, 777 (2001b)
49. K. Dolag A.M. Bykov A. Diaferio 2008 Space Sci. Rev. 10.1007/s11214-008- 9319-2 K. Dolag, A.M. Bykov, A. Diaferio, Space Sci. Rev. (2008). doi: 10.1007/s11214-008-9319-2
50. J.A. Eilek, F.N. Owen, Astrophys. J. 567, 202 (2002)
51. T.A. Enßlin, Gopal-Krishna, Astron. Astrophys. 366, 26 (2001)
52. T.A. Enßlin, H.J.A. Röttgering, Astron. Astrophys. 396, 83 (2002)
53. T.A. Enßlin, C. Vogt, Astron. Astrophys. 401, 835 (2003)
54. T.A. Enßlin, P.L. Biermann, U. Klein, S. Kohle, Astron. Astrophys. 332, 395 (1998)
55. T.A. Enßlin, R. Lieu, P.L. Biermann, Astron. Astrophys. 344, 409 (1999)
56. T.A. Enßlin, C. Vogt, T.E. Clarke, G.B. Taylor, Astrophys. J. 597, 870 (2003)
57. S. Ettori, A.C. Fabian, D.A. White, Mon. Not. R. Astron. Soc. 300, 837 (1998)
58. S. Ettori, P. Tozzi, S. Borgani, P. Rosati, Astron. Astrophys. 417, 13 (2004)
59. A.E. Evrard, I.M. Gioia, in Merging Processes in Galaxy Clusters, ed. by L. Feretti, I.M. Gioia, G. Giovannini, Astrophys. Sp. Sc. Lib. (Kluwer), 272, 253 (2002)
60. A.C. Fabian, J.S. Sanders, S. Ettori et al., Mon. Not. R. Astron. Soc. 318, 65 (2000)
61. A.C. Fabian, A. Celotti, K.M. Blundell, N.E. Kassim, R.A. Perley, Mon. Not. R. Astron. Soc. 331, 369 (2002)
62. L. Feretti, in Diffuse Thermal and Relativistic Plasma in Galaxy Clusters, ed. by H. Böhringer, L. Feretti, P. Schuecker, MPE Rep. 271, 3 (1999)
63. L. Feretti, in The Universe at Low Radio Frequencies, ed. by Pramesh Rao, G. Swarup, Gopal-Krishna. IAU Symp. 199, 133 (2002)
64. L. Feretti, Adv. Space Res. 36, 729 (2005)
65. L. Feretti, G. Giovannini, in Panchromatic View of Clusters of Galaxies and the Large-Scale Structure, ed. by M. Plionis, O. Lopez-Cruz, D. Hughes (2008). astro-ph/0703494
66. L. Feretti, D.M. Neumann, Astron. Astrophys. 450, L21 (2006)
67. L. Feretti, T. Venturi, in Merging Processes in Galaxy Clusters, ed. by L. Feretti, I.M. Gioia, G. Giovannini, Astrophys. Sp. Sc. Lib. (Kluwer) 272, 163 (2002)
68. L. Feretti, D. Dallacasa, G. Giovannini, A. Tagliani, Astron. Astrophys. 302, 680 (1995)
69. L. Feretti, G. Giovannini, H. Böhringer, New Astron. 2, 501 (1997)
70. L. Feretti, D. Dallacasa, F. Govoni et al., Astron. Astrophys. 344, 472 (1999)
71. L. Feretti, R. Fusco-Femiano, G. Giovannini, F. Govoni, Astron. Astrophys. 373, 106 (2001)
72. L. Feretti, E. Orrù, G. Brunetti et al., Astron. Astrophys. 423, 111 (2004a)
73. L. Feretti, C. Burigana, T.A. Enßlin, in Science with the Square Kilometre Array, ed. by C. Carilli, S. Rawlings, New Astron. Rev. 48, 1137 (2004b)
74. C. Ferrari, Multi-wavelength analysis of merging galaxy clusters, PhD Thesis, Nice (2003). Available electronically at http://tel.archives-ouvertes. fr/docs/00/04/85/55/PDF/tel-00010416.pdf
75. C. Ferrari, S. Maurogordato, A. Cappi, C. Benoist, Astron. Astrophys. 399, 813 (2003)
76. C. Ferrari, C. Benoist, S. Maurogordato, A. Cappi, E. Slezak, Astron. Astrophys. 430, 19 (2005)
77. C. Ferrari, M. Arnaud, S. Ettori, S. Maurogordato, J. Rho, Astron. Astrophys. 446, 417 (2006a)
78. C. Ferrari, R.W. Hunstead, L. Feretti, S. Maurogordato, S. Schindler, Astron. Astrophys. 457, 21 (2006b)
79. A. Finoguenov, H. Böhringer, Y.-Y. Zhang, Astron. Astrophys. 442, 827 (2005)
80. T. Furusho, N.Y. Yamasaki, T. Ohashi, R. Shibata, H. Ezawa, Astrophys. J. 561, L165 (2001)
81. R. Fusco-Femiano, D. Dal Fiume, L. Feretti et al., Astrophys. J. 513, L21 (1999)
82. R. Fusco-Femiano, D. Dal Fiume, S. De Grandi et al., Astrophys. J. 534, L7 (2000)
83. R. Fusco-Femiano, D. Dal Fiume, M. Orlandini et al., Astrophys. J. 552, L97 (2001)
84. R. Fusco-Femiano, R. Landi, M. Orlandini, Astrophys. J. 654, 9 (2007)
85. S. Gabici, P. Blasi, Astrophys. J. 583, 695 (2003)
86. G. Gavazzi, L. Cortese, A. Boselli et al., Astrophys. J. 597, 210 (2003)
87. S. Giacintucci, T. Venturi, G. Brunetti et al., Astron. Astrophys. 440, 867 (2005)
88. S. Giacintucci, T. Venturi, S. Bardelli et al., New Astron. 11, 437 (2006)
89. G. Giovannini, L. Feretti, New Astron. 5, 335 (2000)
90. G. Giovannini, L. Feretti, in Merging Processes in Galaxy Clusters, ed. by L. Feretti, I.M. Gioia, G. Giovannini, Astrophys. Sp. Sc. Lib. (Kluwer) 272, 197 (2002)
91. G. Giovannini, L. Feretti, T. Venturi, K.-T. Kim, P.P. Kronberg, Astrophys. J. 406, 399 (1993)
92. G. Giovannini, M. Tordi, L. Feretti, New Astron. 4, 141 (1999)
93. M. Girardi, A. Biviano, in Merging Processes in Galaxy Clusters, ed. by L. Feretti, I.M. Gioia, G. Giovannini, Astrophys. Sp. Sc. Lib. (Kluwer) 272, 39 (2002)
94. M. Gitti, G. Brunetti, G. Setti, Astron. Astrophys. 386, 456 (2002)
95. M. Gitti, G. Brunetti, L. Feretti, G. Setti, Astron. Astrophys. 417, 1 (2004)
96. M. Gitti, C. Ferrari, W. Domainko, L. Feretti, S. Schindler, Astron. Astrophys. 470, L25 (2007a)
97. M. Gitti, R. Piffaretti, S. Schindler, Astron. Astrophys. 472, 383 (2007b)
98. O. Goldshmidt, Y. Rephaeli, Astrophys. J. 411, 518 (1993)
99. P.L. Gómez, C. Loken, K. Röttiger, J.O. Burns, Astrophys. J. 569, 122 (2002)
100. F. Govoni, L. Feretti, Int. J. Modern Phys. D 13, 1549 (2004)
101. F. Govoni, G.B. Taylor, D. Dallacasa et al., Astron. Astrophys. 369, 441 (2001a)
102. F. Govoni, L. Feretti, G. Giovannini et al., Astron. Astrophys. 376, 803 (2001b)
103. F. Govoni, T.A. Enßlin, L. Feretti, G. Giovannini, Astron. Astrophys. 379, 807 (2001c)
104. F. Govoni, M. Murgia, L. Feretti et al., Astron. Astrophys. 430, L5 (2005)
105. F. Govoni, M. Murgia, L. Ferettiet al., Astron. Astrophys. 460, 425 (2006)
106. D. Guidetti, M. Murgia, F. Govoni et al., Astron. Astrophys. (2008). arXiv:0709.2652
107. M. Hoeft, M. Brüggen, Mon. Not. R. Astron. Soc. 375, 77 (2007)
108. W.J. Jaffe, Astrophys. J. 212, 1 (1977)
109. M. Johnston-Hollitt, in The Riddle of Cooling Flows in Galaxies and Clusters of Galaxies, ed. by T. Reiprich, J. Kempner, N. Soker (2004). Published electronically at http://www.astro.virginia.edu/coolflow/
110. M. Johnston-Hollitt, R.W. Clay, R.D. Ekers, M.H. Wieringa, R.W. Hunstead, in The Universe at low radio frequencies, ed. by Pramesh Rao, G. Swarup, Gopal-Krishna. IAU Symp. 199, 157 (2002)
111. C. Jones, W. Forman, Astrophys. J. 511, 65 (1999)
112. W. Kapferer, C. Ferrari, W. Domainkoet al., Astron. Astrophys. 447, 827 (2006)
113. N.E. Kassim, T.E. Clarke, T.A. Enßlin, A.S. Cohen, D.M. Neumann, Astrophys. J. 559, 785 (2001)
114. J.C. Kempner, L.P. David, Mon. Not. R. Astron. Soc. 349, 385 (2004)
115. J.C. Kempner, C.L. Sarazin, Astrophys. J. 548, 639 (2001)
116. J.C. Kempner, E.L. Blanton, T.E. Clarke et al., in The Riddle of Cooling Flows in Galaxies and Clusters of Galaxies, ed. by T. Reiprich, J. Kempner, N. Soker (2004). Published electronically at http://www.astro.virginia.edu/ coolflow/
117. K.T. Kim, P.P. Kronberg, P.E. Dewdney, T.L. Landecker, Astrophys. J. 355, 29 (1990)
118. K.T. Kim, P.C. Tribble, P.P. Kronberg, Astrophys. J. 379, 80 (1991)
119. M.I. Large, D.S. Mathewson, C.G. Haslam, Nature 183, 1663 (1959)
120. J.M. Lawler, B. Dennison, Astrophys. J. 252, 81 (1982)
121. H. Liang, R.W. Hunstead, M. Birkinshaw, P. Andreani, Astrophys. J. 544, 686 (2000)
122. M.S. Longair, High Energy Astrophysics (Cambridge Univ. Press, Cambridge, 1981)
123. M. Markevitch, A. Vikhlinin, Astrophys. J. 563, 95 (2001)
124. M. Markevitch, A. Vikhlinin, Phys. Rep. 443, 1 (2007)
125. M. Markevitch, C.L. Sarazin, A. Vikhlinin, Astrophys. J. 521, 526 (1999)
126. M. Markevitch, T.J. Ponman, P.E.J. Nulsen et al., Astrophys. J. 541, 542 (2000)
127. M. Markevitch, F. Govoni, G. Brunetti, D. Jerius, Astrophys. J. 627, 733 (2005)
128. S. Maurogordato, A. Cappi, C. Ferrari et al., Astron. Astrophys. (2008). astro-ph/0712.2715
129. B.R. McNamara, L. Bîrzan, D.A. Rafferty et al., in Extragalactic Jets: Theory and Observation from Radio to Gamma Ray, ed. by T.A. Rector, D.S. De Young, ASP Conference Series (2008). astro-ph/0708.0579
130. K. Meisenheimer, H.-J. Roser, P.R. Hiltner et al., Astron. Astrophys. 219, 63 (1989)
131. F. Miniati, Mon. Not. R. Astron. Soc. 342, 1009 (2003)
132. J. Mohr, M.J. Geller, G. Wegner, Astron. J. 112, 1816 (1996)
133. J.S. Mulchaey, D.S. Davis, R.F. Mushotzky, D. Burstein, Astrophys. J. 456, 80 (1996)
134. M. Murgia, F. Govoni, L. Feretti et al., Astron. Astrophys. 424, 429 (2004)
135. M. Murgia, P. Parma, H.R. de Ruiter et al., in X-Ray and Radio Connections, ed. by L.O. Sjouwerman, K.K. Dyer (2005). Published electronically by NRAO, http://www.aoc.nrao.edu/events/xraydio
136. K. Nakazawa, K. Makishima, Y. Fukazawa, Publ. Astron. Soc. Jpn. 59, 167 (2007)
137. D.M. Neumann, M. Arnaud, Astron. Astrophys. 348, 711 (1999)
138. D.M. Neumann, M. Arnaud, Astron. Astrophys. 373, L33 (2001)
139. W.I. Newman, A.I. Newman, Y. Rephaeli, Astrophys. J. 575, 755 (2002)
140. E. Orrù, M. Murgia, L. Feretti et al., Astron. Astrophys. 467, 943 (2007)
141. A.G. Pacholczyk, Radio Astrophysics (Freeman, New York, 1970)
142. F. Paerels J. Kaastra T. Ohashi 2008 Space Sci. Rev. 10.1007/s11214-008- 9323-6 F. Paerels, J. Kaastra, T. Ohashi et al., Space Sci. Rev. (2008). doi: 10.1007/s11214-008-9323-6
143. P. Parma, M. Murgia, H.R. de Ruiter et al., Astron. Astrophys. 470, 875 (2007)
144. R.A. Perley, G.B. Taylor, Astron. J. 101, 1623 (1991)
145. V. Petrosian, Astrophys. J. 557, 560 (2001)
146. V. Petrosian, ASP Conf. Series 301, 337 (2003)
147. V. Petrosian Y. Rephaeli A.M. Bykov 2008 Space Sci. Rev. 10.1007/s11214-008-9327-2 V. Petrosian, Y. Rephaeli, A.M. Bykov, Space Sci. Rev. (2008). doi: 10.1007/s11214-008-9327-2
148. C. Pfrommer, T. Enßlin, Astron. Astrophys. 413, 17 (2004)
149. B.M. Poggianti, I. Smail, A. Dressler et al., Astrophys. J. 601, 197 (2004)
150. Y. Rephaeli, Astrophys. J. 212, 608 (1977)
151. Y. Rephaeli, Astrophys. J. 227, 364 (1979)
152. Y. Rephaeli, D. Gruber, Astrophys. J. 595, 137 (2003)
153. Y. Rephaeli, D. Gruber, P. Blanco, Astrophys. J. 511, 21 (1999)
154. Y. Rephaeli, D. Gruber, Y. Arieli, Astrophys. J. 649, 673 (2006)
155. Y. Rephaeli J. Nevalainen T. Ohashi A.M. Bykov 2008 Space Sci. Rev. 10.1007/s11214-008-9314-7 Y. Rephaeli, J. Nevalainen, T. Ohashi, A.M. Bykov, Space Sci. Rev. (2008). doi: 10.1007/s11214-008-9314-7
156. E. Rizza, C. Loken, M. Bliton, K. Roettiger, J.O. Burns, Astron. J. 119, 21 (2000)
157. H.J.A. Röttgering, New Astron. Rev. 47, 405 (2003)
158. H.J.A. Röttgering, M.H. Wieringa, R.W. Hunstead, R.D. Ekers, Mon. Not. R. Astron. Soc. 290, 577 (1997)
159. L. Rudnick, K.M. Blundell, in The Riddle of Cooling Flows in Galaxies and Clusters of Galaxies, ed. by T. Reiprich, J. Kempner, N. Soker (2003a). Available electronically at http://www.astro.virginia.edu/coolflow/proc.php
160. L. Rudnick, K.M. Blundell, Astrophys. J. 588, 143 (2003b)
161. C.L. Sarazin, in X-ray and Radio Connections, ed. by L.O. Sjouwerman, K.K. Dyer. Published electronically by NRAO (2005). http://www.aoc.nrao.edu/ events/xraydio
162. C.L. Sarazin, J.C. Kempner, Astrophys. J. 533, 73 (2000)
163. J.-L. Sauvageot, E. Belsole, G.W. Pratt, Astron. Astrophys. 444, 673 (2005)
164. S. Schindler, in Merging Processes in Galaxy Clusters, ed. by L. Feretti, I.M. Gioia, G. Giovannini, Astrophys. Sp. Sc. Lib. (Kluwer) 272, 229 (2002)
165. P. Schuecker, H. Böhringer, in Diffuse Thermal and Relativistic Plasma in Galaxy Clusters, ed. by H. Böhringer, L. Feretti, P. Schuecker. MPE Report 271, 43 (1999)
166. D. Sijbring, A radio continuum and H I line study of the Perseus cluster. PhD Thesis, Groningen, 1993
167. O.B. Slee, A.L. Roy, M. Murgia, H. Andernach, M. Ehle, Astron. J. 122, 1172 (2001)
168. R. Subrahmanyan, A.J. Beasley, W.M. Goss, K. Golap, R.W. Hunstead, Astron. J. 125, 1095 (2003)
169. R.A. Sunyaev, Y.B. Zel'dovich, Comments Astrophys. Space Phys. 4, 173 (1972)
170. G.B. Taylor, R.A. Perley, Astrophys. J. 416, 554 (1993)
171. G.B. Taylor, F. Govoni, S.W. Allen, A.C. Fabian, Mon. Not. R. Astron. Soc. 326, 2 (2001)
172. G.B. Taylor, A.C. Fabian, S.W. Allen, Mon. Not. R. Astron. Soc. 334, 769 (2002)
173. G.B. Taylor, A.C. Fabian, G. Gentile et al., Mon. Not. R. Astron. Soc. 382, 67 (2007)
174. M. Thierbach, U. Klein, R. Wielebinski, Astron. Astrophys. 397, 53 (2003)
175. J.P. Vallée, M.J. MacLeod, N.W. Broten, Astron. Astrophys. 156, 386 (1986)
176. T. Venturi, S. Giacintucci, G. Brunetti et al., Astron. Astrophys. 463, 937 (2007)
177. A. Vikhlinin, M. Markevitch, S.S. Murray, Astrophys. J. 549, L47 (2001)
178. C. Vogt, T.A. Enßlin, Astron. Astrophys. 412, 373 (2003)
179. C. Vogt, T.A. Enßlin, Astron. Astrophys. 434, 67 (2005)
180. H. Völk, A.M. Atoyan, Astrophys. Phys. 11, 73 (1999)
181. H. Völk, F.A. Aharonian, D. Breitschwerdt, Space Sci. Rev. 75, 279 (1996)
182. M.A.G. Willson, Mon. Not. R. Astron. Soc. 151, 1 (1970)