VLT transit and occultation photometry for the bloated planet CoRoT-1b

Astrophysics - Earth and Planetary Astrophysics; binaries: eclipsing; planetary systems; stars: individual: CoRoT-1; infrared: stars; techniques: radial velocities

Abstract :

[en] We present VLT eclipse photometry for the giant planet CoRoT-1b. We observed a transit in the R-band filter and an occultation in a narrow filter centered on 2.09 microns. Our analysis of this new photometry and published radial velocities, in combination with stellar-evolutionary modeling, leads to a planetary mass and radius of 1.07 (+0.13,-0.18) M_Jup and 1.45 (+0.07,-0.13) R_Jup, confirming the very low density previously deduced from CoRoT photometry. The large occultation depth that we measure at 2.09 microns (0.278 (+0.043,-0.066) %) is consistent with thermal emission and is better reproduced by an atmospheric model with no redistribution of the absorbed stellar flux to the night side of the planet.

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Gillon, Michaël ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image

Demory, B.-O.

Triaud, A.H.M.J.

Barman, T.

Hebb, L.

Montalban Iglesias, Josefa ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Evol. et stabilité des étoiles et des amas d'étoiles (ESEA)

Maxted, P.

Queloz, D.

Deleuil, M.

Magain, Pierre ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image

Language :

English

Title :

VLT transit and occultation photometry for the bloated planet CoRoT-1b

Publication date :

2009

Journal title :

Astronomy and Astrophysics

ISSN :

0004-6361

eISSN :

1432-0746

Publisher :

EDP Sciences, Les Ulis, France

Volume :

506

Pages :

359-367

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://adsabs.harvard.edu/abs/2009arXiv0905.4571G

Available on ORBi :

since 29 December 2010

Statistics

Number of views

107 (14 by ULiège)

Number of downloads

130 (0 by ULiège)

More statistics

Scopus citations^®

Scopus citations^®
without self-citations

OpenCitations

OpenAlex citations

103

Bibliography

Agol, E., Steffen, J., Sari, R., & Clarkson, W. 2005, MNRAS, 359, 567
Alonso, R., Barbieri, M., Rabus, M., et al. 2008, A&A, 487, L5
Appenzeller, I., Fricke, K., Furtig, W., et al. 1998, The Messenger, 94, 1
Asplund, M., Grevesse, N., & Sauval, A. J. 2005, Cosmic Abundances as Records of Stellar Evolution and Nucleosynthesis, ASP Proc. Symp., 336, 25
Baglin, A., Auvergne, M., Boisnard, L., et al. 2006, 36th COSPAR Scientific Assembly, 36, 3749
Barge, P., Baglin, A., Auvergne, M., et al. 2008, A&A, 482, L17
Barman, T. S., Hauschildt, P., & Allard, F. 2005, ApJ, 632, 1132
Bean, J. L. 2009, A&A, 506, 369
Bodenheimer, P., Lin, D. N. C., & Mardling, R. A. 2001, ApJ, 548, 466
Böhm-Vitense, E. 1958, ZAp, 46, 108
Bouchy, F., The Sophie Team 2006, in Tenth Anniversary of 51 Peg-b, 319
Burrows, A., Hubeny, I., Budaj, J., & Hubbard, W. B. 2007, ApJ, 661, 502
Casali, M., Pirard, J.-F., Kissler-Patig, M., et al. 2006, SPIE, 6269, 29
Chambers, J. E. 1999, MNRAS, 304, 793
Charbonneau, D., Allen, L. E., Megeath, S. T., et al. 2005, ApJ, 626, 523
Charbonneau, D., Brown, T. M., Burrows, A., & Laughlin, G. 2007, Protostars and Planets V, ed. B. Reipurth, D. Jewitt, & K. Keill (Tucson: University of Arizona Press), 701
Claret, A. 2000, A&A, 363, 1081
Claret, A. 2004, A&A, 428, 1001
Deming, D., Richardson, L. J., & Harrington, J. 2007, MNRAS, 378, 148
De Mooij, E. J. W., & Snellen, I. A. G. 2009, A&A, 493, L35
Ferguson, J. W., Alexander, D. R., Allard, F., et al. 2005, ApJ, 623, 585
Ford, E. 2006, ApJ, 642, 505
Fortney, J. J., Marley, M. S., & Barnes, J. W. 2007, ApJ, 658, 1661
Fortney, J. J., Lodders, K., Marley, M. S., & Freedman, R. S. 2008, ApJ, 678, 1419
Gardner, J. P., Mather, J. C., Clampin, M., et al. 2006, Space Sci. Rev., 123, 485
Gillon, M., Pont, F., Moutou, C., et al. 2006, A&A, 459, 249
Gillon, M., Pont, F., Moutou, C., et al. 2007a, A&A, 466, 743
Gillon, M., Magain, P., Chantry, V., et al. 2007b, ASPC, 366, 113
Gillon, M., Smalley, B., Hebb, L., et al. 2009, A&A, 496, 259
Girardi, L., Bressan, A., Bertelli, G., & Chiosi, C. 2000, A&AS, 141, 371
Gelman, A., & Rubin, D. 1992, Stat. Sci., 7, 457
Gregory, P. C. 2005, ApJ, 631, 1198
Grevesse, N., & Noels, A. 1993, in La formation des éléments chimiques, AVCP, ed. B. Hauck, & S. R. D. Paltani
Holman, M. J., & Murray, N. W. 2005, Science, 307, 1288
Holman, M. J., Winn, J. N., Latham, D. W., et al. 2006, ApJ, 652, 1715
Ibgui, L., & Burrows, A. 2009, ApJ, 700, 1921
Iglesias, C. A., & Rogers, F. J. 1996, ApJ, 464, 943
Jackson, B., Greenberg, R., & Barnes, R. 2008a, ApJ, 681, 1631
Jackson, B., Greenberg, R., & Barnes, R. 2008b, ApJ, 681, 1631
Knutson, H. A., Charbonneau, D., Deming, D., & Richardson, L. J. 2007, PASP, 119, 616
Magain, P., Courbin, F., Gillon, M., et al. 2007, A&A, 461, 373
Mandel, K., & Agol, E. 2002, ApJ, 5802, L171
Mayor, M., Pepe, F., & Queloz, D. 2003, The Messenger, 114, 20
Nesvorný, D., & Morbidelli, A. 2008, ApJ, 688, 636
Pirard, J.-F., Kissler-Patig, M., Moorwood, A., et al. 2004, SPIE, 5492, 510
Richardson, L. J., Deming, D., & Seager, S. 2003a, ApJ, 597, 581
Richardson, L. J., Deming, D., Wiedemann, G., et al. 2003b, ApJ, 584, 1053
Rogers, F. J., & Nayfonov, A. 2002, ApJ, 576, 1064
Scuflaire, R., Théado, S., Montalbán, J., et al. 2008, APSS, 316, 83
Sing, D. K., & López-Morales, M. 2009, A&A, 493, L31
Snellen, I. A. G. 2005, MNRAS, 363, 211
Snellen, I. A. G., & Covino, E. 2007, MNRAS, 375, 307
Snellen, I. A. G., de Mooij, E. J. W., & Albrecht, S. 2009, Nature, 459, 543
Tegmark, M., Strauss, M. A., & Blanton, M. R. 2004, Phys. Rev. D., 69, 103501
Thoul, A., Bahcall, J. N., & Loeb, A. 1994, ApJ, 421, 828
Torres, G. 2007, ApJ, 671, L65
Werner, M. W., Roellig, T. L., & Low, F. J. 2004, ApJS, 154, 1
Winn, J. N. 2008, IAU 253, Transiting Planets, ed. F. Pont (Cambridge USA), 99
Winn, J. N., Holman, M. J., Shporer, A., et al. 2008, ApJ, 136, 267
Wrigth, J. T. 2005, PASP, 117, 657