Discovery of a cool planet of 5.5 Earth masses through gravitational microlensing

Nature

Volumn 439, Issue 7075, 2006, Pages 437-440

  Beaulieu, J P ^a,b   Bennett, D P ^a,c   Fouque P ^a,d   Williams, A ^a,e   Dominik, M ^a,f   Jorgensen U G ^a,g   Kubas, D ^a,h   Cassan, A ^a,b   Coutures, C ^a,i   Greenhill, J ^a,j   Hill, K ^a,j   Menzies, J ^a,k   Sackett, P D ^a,l   Albrow, M ^a,m   Brillant, S ^a,h   Caldwell, J A R ^a,n   Calitz, J J ^a,o   Cook, K H ^a,p   Corrales, E ^a,b   Desort, M ^a,b   Dieters, S ^a,j   Dominis, D ^a,q,r   Donatowicz, J ^a,s   Hoffman, M ^a,q,r   Kane, S ^a,t   Marquette, J B ^a,b   Martin, R ^a,e   Meintjes, P ^a,o   Pollard, K ^a,m   Sahu, K ^a,u   Vinter, C ^a,g   Wambsganss, J ^a,v   Woller, K ^a,g   Horne, K ^a,f   Steele, I ^a,w   Bramich, D M ^a,f,w   Burgdorf, M ^a,w   Snodgrass, C ^a,x   Bode, M ^a,w   Udalski, A ^a,y   Szymanski M K ^a,y   Kubiak, M ^a,y   Wieckowski T ^a,y   Pietrzynski G ^a,y,z   Soszynski I ^a,y,z   Szewczyk, O ^a,y   Wyrzykowski, L ^a,y,aa   Paczynski B ^a,ab   Abe, F ^a,ac   Bond, I A ^a,ad   Britton, T R ^a,m,ae   Gilmore, A C ^a,m   Hearnshaw, J B ^a,m   Itow, Y ^a,ac   Kamiya, K ^a,ac   Kilmartin, P M ^a,m   Korpela, A V ^a,af   Masuda, K ^a,ac   Matsubara, Y ^a,ac   Motomura, M ^a,ac   Muraki, Y ^a,ac   Nakamura, S ^a,ac   Okada, C ^a,ac   Ohnishi, K ^a,ag   Rattenbury, N J ^a,aa   Sako, T ^a,ac   Sato, S ^a,ac   Sasaki, M ^a,ac   Sekiguchi, T ^a,ac   Sullivan, D J ^a,af   Tristram, P J ^a,ae   Yock, P C M ^a,ae   Yoshioka, T ^a,ac   more..

^a PLANET/RoboNet Collaboration ^*  (United States)

^b INSTITUT D'ASTROPHYSIQUE DE PARIS   (France)

^c UNIVERSITY OF NOTRE DAME   (United States)

^d OBSERVATOIRE MIDI PYRÉNÉES   (France)

^e PERTH OBSERVATORY   (Australia)

^f UNIVERSITY OF ST ANDREWS   (United Kingdom)

^g UNIVERSITY OF COPENHAGEN   (Denmark)

^h EUROPEAN SOUTHERN OBSERVATORY   (Chile)

ⁱ CEA SACLAY   (France)

^j UNIVERSITY OF TASMANIA   (Australia)

^k SOUTH AFRICAN ASTRONOMICAL OBSERVATORY   (South Africa)

^l AUSTRALIAN NATIONAL UNIVERSITY   (Australia)

^m UNIVERSITY OF CANTERBURY   (New Zealand)

ⁿ McDonald Observatory   (United States)

^o UNIVERSITY OF THE FREE STATE   (South Africa)

^p LAWRENCE LIVERMORE NATIONAL LABORATORY   (United States)

^q UNIVERSITY OF POTSDAM   (Germany)

^r ASTROPHYSIKALISCHES INSTITUT POTSDAM   (Germany)

^s VIENNA UNIVERSITY OF TECHNOLOGY   (Austria)

^t Astrophysikalisches Institut Potsdam ^*  (United States)

^u AURA for the European Space Agency   (United States)

^v ASTRONOMISCHES RECHEN INSTITUT   (Germany)

^w LIVERPOOL JOHN MOORES UNIVERSITY   (United Kingdom)

^x QUEEN'S UNIVERSITY BELFAST   (United Kingdom)

^y UNIVERSITY OF WARSAW   (Poland)

^z UNIVERSITY OF CONCEPCIÓN   (Chile)

^aa UNIVERSITY OF MANCHESTER   (United Kingdom)

^ab PRINCETON UNIVERSITY OBSERVATORY   (United States)

^ac NAGOYA UNIVERSITY   (Japan)

^ad MASSEY UNIVERSITY   (New Zealand)

^ae UNIVERSITY OF AUCKLAND   (New Zealand)

^af VICTORIA UNIVERSITY OF WELLINGTON   (New Zealand)

^ag NAGANO NATIONAL COLLEGE OF TECHNOLOGY   (Japan)

more..

Author keywords

[No Author keywords available]

Indexed keywords

ASTRONOMY; GRAVITATION; MATHEMATICAL MODELS; ORBITS;

ACCRETION; GRAVITATION MICROLENSING; M-DWARF STARS; PLANETESIMALS;

PLANETS;

ASTRONOMY;

ARTICLE; ASTRONOMY; COSMOS; GAS; GRAVITY; MOLECULAR WEIGHT; PRIORITY JOURNAL; THEORETICAL STUDY;

EID: 31444432828     PISSN: 00280836     EISSN: 14764687     Source Type: Journal    
DOI: 10.1038/nature04441     Document Type: Article

References (30)

1. Safronov, V. Evolution of the Protoplanetary Cloud and Formation of the Earth and Planets (Nauka, Moscow, 1969).
2. Wetherill, G. W. Formation of the terrestrial planets. Annu. Rev. Astron. Astrophys 18, 77-113 (1980).
3. Laughlin, G., Bodenheimer, P. & Adams, F. C. The core accretion model predicts few jovian-mass planets orbiting red dwarfs. Astrophys. J. 612, L73-L76 (2004).
4. Ida, S. & Lin, D. N. C. Toward a deterministic model of planetary formation. II. The formation and retention of gas giant planets around stars with a range of metallicities. Astrophys. J. 616, 567-572 (2004).
5. Rivera, E. et al. A ∼7.5 Earth-mass planet orbiting the nearby star, GJ 876. Astrophys. J. (in the press).
6. Mao, S. & Paczynski, B. Gravitational microlensing by double stars and planetary systems. Astrophys. J. 374, L37-L40 (1991).
7. Gould, A. & Loeb, A. Discovering planetary systems through gravitational Microlenses. Astrophys. J. 396, 104-114 (1992).
8. Wambsganss, J. Discovering Galactic planets by gravitational microlensing: magnification patterns and light curves. Mon. Not. R. Astron. Soc. 284, 172-188 (1997).
9. Griest, K. & Safizadeh, N. The use of high-magnification microlensing events in discovering extrasolar planets. Astrophys. J. 500, 37-50 (1998).
10. Bennett, D. P. & Rhie, S. H. Detecting Earth-mass planets with gravitational microlensing. Astrophys. J. 472, 660-664 (1996).
11. Bennett, D. P. & Rhie, S. H. Simulation of a space-based microlensing survey for terrestrial extrasolar planets. Astrophys. J. 574, 985-1003 (2002).
12. Albrow, M. et al. The 1995 pilot campaign of PLANET: searching for microlensing anomalies through precise, rapid, round-the-clock monitoring. Astrophys. J. 509, 687-702 (1998).
13. Bond, I. A. et al. OGLE 2003-BLG-235/MOA 2003-BLG-53: A planetary microlensing event. Astrophys. J. 606, L155-L158 (2004).
14. Udalski, A. et al. A Jovian-mass planet in microlensing event OGLE-2005-BLG-071. Astrophys. J. 628, L109-L112 (2005).
15. Gaudi, B. S. et al. Microlensing constraints on the frequency of Jupiter-mass companions: analysis of 5 years of PLANET photometry. Astrophys. J. 566, 463-499 (2002).
16. Abe, F. et al. Search for low-mass exoplanets by gravitational microlensing at high magnification. Science 305, 1264-1267 (2004).
17. Dong, S. et al. Planetary detection efficiency of the magnification 3000 microlensing event OGLE-2004-BLG-343. Astrophys. J. (submitted); preprint at 〈http://arXiv.org/astro-ph/0507079〉 (2005).
18. Udalski, A. The optical gravitational lensing experiment, real time data analysis systems in the OGLE-III survey. Acta Astron. 53, 291-305 (2003).
19. Alard, C. Image subtraction using a space-varying kernel. Astron. Astrophys. Suppl. 144, 363-370 (2000).
20. Kervella, P. et al. Cepheid distances from infrared long-baseline interferometry. III. Calibration of the surface brightness-color relations. Astron. Astrophys. 428, 587-593 (2004).
21. Claret, A., Diaz-Cordoves, J. & Gimenez, A. Linear and non-linear limb-darkening coefficients for the photometric bands R I J H K. Astron. Astrophys. Suppl. 114, 247-252 (1995).
22. Gaudi, B. S. Distinguishing between binary-source and planetary microlensing perturbations. Astrophys. J. 506, 533-539 (1998).
23. Dominik, M. Stochastical distributions of lens and source properties for observed galactic microlensing events. Mon. Not. R. Astron. Soc. (submitted); preprint at 〈http://arXiv.org/astro-ph/0507540〉 (2005).
24. Vogt, S. S. et al. Five new multicomponent planetary systems. Astrophys. J. 632, 638-658 (2005).
25. Mayor, M. et al. The CORALIE survey for southern extrasolar planets. XII. Orbital solutions for 16 extrasolar planets discovered with CORALIE. Astron. Astrophys. 415, 391-402 (2004).
26. Borucki, W. et al. in Second Eddington Workshop: Stellar Structure and Habitable Planet Finding (eds Favata, F., Aigrain, S. & Wilson, A.) 177-182 (ESA SP-538, ESA Publications Division, Noordwijk, 2004).
27. Moutou, C. et al. Comparative blind test of five planetary transit detection algorithms on realistic synthetic light curves. Astron. Astrophys. 437, 355-368 (2005).
28. Sozzeti, A. et al. Narrow-angle astrometry with the space interferometry mission: the search for extrasolar planets. I. Detection and characterization of single planets. Pub. Astron. Soc. Pacif. 114, 1173-1196 (2002).
29. Bennett, D. P. in ASP Conf. Ser. on Extrasolar Planets: Today and Tomorrow (eds Beaulieu, J.-P., Lecavelier des Etangs, A. & Terquem, C.) Vol. 321, 59-68 (ASP, 2004).
30. Beaulieu, J. P. et al. PLANET III: searching for Earth-mass planets via microlensing from Dome C? ESA Publ. Ser. 14, 297-302 (2005).