Transiting exoplanets from the CoRoT space mission. XXVII. CoRoT-28b, a planet orbiting an evolved star, and CoRoT-29b, a planet showing an asymmetric transit
Context. We present the discovery of two transiting extrasolar planets by the satellite CoRoT. Aims: We aim at a characterization of the planetary bulk parameters, which allow us to further investigate the formation and evolution of the planetary systems and the main properties of the host stars. Me...
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ftinstnastrofisi:oai:openaccess.inaf.it:20.500.12386/28687 2023-05-15T16:52:42+02:00 Transiting exoplanets from the CoRoT space mission. XXVII. CoRoT-28b, a planet orbiting an evolved star, and CoRoT-29b, a planet showing an asymmetric transit Cabrera, J. Csizmadia, Sz. Montagnier, G. Fridlund, M. Ammler-von Eiff, M. Chaintreuil, S. Damiani, C. Deleuil, M. Ferraz-Mello, S. Ferrigno, A. Gandolfi, D. Guillot, T. Guenther, E. W. Hatzes, A. Hébrard, G. Klagyivik, P. Parviainen, H. Pasternacki, Th. Pätzold, M. Sebastian, D. Tadeu dos Santos, M. Wuchterl, G. Aigrain, S. Alonso, R. Almenara, J. -M. Armstrong, J. D. Auvergne, M. Baglin, A. Barge, P. Barros, S. C. C. BONOMO, ALDO STEFANO Bordé, P. Bouchy, F. Carpano, S. Chaffey, C. Deeg, H. J. Díaz, R. F. Dvorak, R. Erikson, A. Grziwa, S. Korth, J. Lammer, H. Lindsay, C. Mazeh, T. Moutou, C. Ofir, A. Ollivier, M. Pallé, E. Rauer, H. Rouan, D. 2015 https://hdl.handle.net/20.500.12386/28687 https://doi.org/10.1051/0004-6361/201424501 https://www.aanda.org/articles/aa/full_html/2015/07/aa24501-14/aa24501-14.html en eng ASTRONOMY & ASTROPHYSICS 0004-6361 http://hdl.handle.net/20.500.12386/28687 doi:10.1051/0004-6361/201424501 2-s2.0-84933557322 000358877100048 https://www.aanda.org/articles/aa/full_html/2015/07/aa24501-14/aa24501-14.html 2015A&A.579A.36C open Article 2015 ftinstnastrofisi https://doi.org/20.500.12386/28687 https://doi.org/10.1051/0004-6361/201424501 2022-07-06T15:58:18Z Context. We present the discovery of two transiting extrasolar planets by the satellite CoRoT. Aims: We aim at a characterization of the planetary bulk parameters, which allow us to further investigate the formation and evolution of the planetary systems and the main properties of the host stars. Methods: We used the transit light curve to characterize the planetary parameters relative to the stellar parameters. The analysis of HARPS spectra established the planetary nature of the detections, providing their masses. Further photometric and spectroscopic ground-based observations provided stellar parameters (log g, T eff , v sin i) to characterize the host stars. Our model takes the geometry of the transit to constrain the stellar density into account, which when linked to stellar evolutionary models, determines the bulk parameters of the star. Because of the asymmetric shape of the light curve of one of the planets, we had to include the possibility in our model that the stellar surface was not strictly spherical. Results: We present the planetary parameters of CoRoT-28b, a Jupiter-sized planet (mass 0.484 ± 0.087 M Jup radius 0.955 ± 0.066 R Jup ) orbiting an evolved star with an orbital period of 5.208 51 ± 0.000 38 days, and CoRoT-29b, another Jupiter-sized planet (mass 0.85 ± 0.20 M Jup radius 0.90 ± 0.16 R Jup ) orbiting an oblate star with an orbital period of 2.850 570 ± 0.000 006 days. The reason behind the asymmetry of the transit shape is not understood at this point. Conclusions: These two new planetary systems have very interesting properties and deserve further study, particularly in the case of the star CoRoT-29. The CoRoT space mission, launched on December 27th 2006, was developed and is operated by CNES, with the contribution of Austria, Belgium, Brazil, ESA (RSSD and Science Programme), Germany, and Spain. Based on observations obtained with the Nordic Optical Telescope, operated on the island of La Palma jointly by Denmark, Finland, Iceland, Norway, and Sweden, in the Spanish Observatorio ... Article in Journal/Newspaper Iceland OA@INAF (Istituto Nazionale di Astrofisica) Jupiter ENVELOPE(101.133,101.133,-66.117,-66.117) Norway Observatorio ENVELOPE(-62.993,-62.993,-64.330,-64.330) |
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Open Polar |
collection |
OA@INAF (Istituto Nazionale di Astrofisica) |
op_collection_id |
ftinstnastrofisi |
language |
English |
description |
Context. We present the discovery of two transiting extrasolar planets by the satellite CoRoT. Aims: We aim at a characterization of the planetary bulk parameters, which allow us to further investigate the formation and evolution of the planetary systems and the main properties of the host stars. Methods: We used the transit light curve to characterize the planetary parameters relative to the stellar parameters. The analysis of HARPS spectra established the planetary nature of the detections, providing their masses. Further photometric and spectroscopic ground-based observations provided stellar parameters (log g, T eff , v sin i) to characterize the host stars. Our model takes the geometry of the transit to constrain the stellar density into account, which when linked to stellar evolutionary models, determines the bulk parameters of the star. Because of the asymmetric shape of the light curve of one of the planets, we had to include the possibility in our model that the stellar surface was not strictly spherical. Results: We present the planetary parameters of CoRoT-28b, a Jupiter-sized planet (mass 0.484 ± 0.087 M Jup radius 0.955 ± 0.066 R Jup ) orbiting an evolved star with an orbital period of 5.208 51 ± 0.000 38 days, and CoRoT-29b, another Jupiter-sized planet (mass 0.85 ± 0.20 M Jup radius 0.90 ± 0.16 R Jup ) orbiting an oblate star with an orbital period of 2.850 570 ± 0.000 006 days. The reason behind the asymmetry of the transit shape is not understood at this point. Conclusions: These two new planetary systems have very interesting properties and deserve further study, particularly in the case of the star CoRoT-29. The CoRoT space mission, launched on December 27th 2006, was developed and is operated by CNES, with the contribution of Austria, Belgium, Brazil, ESA (RSSD and Science Programme), Germany, and Spain. Based on observations obtained with the Nordic Optical Telescope, operated on the island of La Palma jointly by Denmark, Finland, Iceland, Norway, and Sweden, in the Spanish Observatorio ... |
format |
Article in Journal/Newspaper |
author |
Cabrera, J. Csizmadia, Sz. Montagnier, G. Fridlund, M. Ammler-von Eiff, M. Chaintreuil, S. Damiani, C. Deleuil, M. Ferraz-Mello, S. Ferrigno, A. Gandolfi, D. Guillot, T. Guenther, E. W. Hatzes, A. Hébrard, G. Klagyivik, P. Parviainen, H. Pasternacki, Th. Pätzold, M. Sebastian, D. Tadeu dos Santos, M. Wuchterl, G. Aigrain, S. Alonso, R. Almenara, J. -M. Armstrong, J. D. Auvergne, M. Baglin, A. Barge, P. Barros, S. C. C. BONOMO, ALDO STEFANO Bordé, P. Bouchy, F. Carpano, S. Chaffey, C. Deeg, H. J. Díaz, R. F. Dvorak, R. Erikson, A. Grziwa, S. Korth, J. Lammer, H. Lindsay, C. Mazeh, T. Moutou, C. Ofir, A. Ollivier, M. Pallé, E. Rauer, H. Rouan, D. |
spellingShingle |
Cabrera, J. Csizmadia, Sz. Montagnier, G. Fridlund, M. Ammler-von Eiff, M. Chaintreuil, S. Damiani, C. Deleuil, M. Ferraz-Mello, S. Ferrigno, A. Gandolfi, D. Guillot, T. Guenther, E. W. Hatzes, A. Hébrard, G. Klagyivik, P. Parviainen, H. Pasternacki, Th. Pätzold, M. Sebastian, D. Tadeu dos Santos, M. Wuchterl, G. Aigrain, S. Alonso, R. Almenara, J. -M. Armstrong, J. D. Auvergne, M. Baglin, A. Barge, P. Barros, S. C. C. BONOMO, ALDO STEFANO Bordé, P. Bouchy, F. Carpano, S. Chaffey, C. Deeg, H. J. Díaz, R. F. Dvorak, R. Erikson, A. Grziwa, S. Korth, J. Lammer, H. Lindsay, C. Mazeh, T. Moutou, C. Ofir, A. Ollivier, M. Pallé, E. Rauer, H. Rouan, D. Transiting exoplanets from the CoRoT space mission. XXVII. CoRoT-28b, a planet orbiting an evolved star, and CoRoT-29b, a planet showing an asymmetric transit |
author_facet |
Cabrera, J. Csizmadia, Sz. Montagnier, G. Fridlund, M. Ammler-von Eiff, M. Chaintreuil, S. Damiani, C. Deleuil, M. Ferraz-Mello, S. Ferrigno, A. Gandolfi, D. Guillot, T. Guenther, E. W. Hatzes, A. Hébrard, G. Klagyivik, P. Parviainen, H. Pasternacki, Th. Pätzold, M. Sebastian, D. Tadeu dos Santos, M. Wuchterl, G. Aigrain, S. Alonso, R. Almenara, J. -M. Armstrong, J. D. Auvergne, M. Baglin, A. Barge, P. Barros, S. C. C. BONOMO, ALDO STEFANO Bordé, P. Bouchy, F. Carpano, S. Chaffey, C. Deeg, H. J. Díaz, R. F. Dvorak, R. Erikson, A. Grziwa, S. Korth, J. Lammer, H. Lindsay, C. Mazeh, T. Moutou, C. Ofir, A. Ollivier, M. Pallé, E. Rauer, H. Rouan, D. |
author_sort |
Cabrera, J. |
title |
Transiting exoplanets from the CoRoT space mission. XXVII. CoRoT-28b, a planet orbiting an evolved star, and CoRoT-29b, a planet showing an asymmetric transit |
title_short |
Transiting exoplanets from the CoRoT space mission. XXVII. CoRoT-28b, a planet orbiting an evolved star, and CoRoT-29b, a planet showing an asymmetric transit |
title_full |
Transiting exoplanets from the CoRoT space mission. XXVII. CoRoT-28b, a planet orbiting an evolved star, and CoRoT-29b, a planet showing an asymmetric transit |
title_fullStr |
Transiting exoplanets from the CoRoT space mission. XXVII. CoRoT-28b, a planet orbiting an evolved star, and CoRoT-29b, a planet showing an asymmetric transit |
title_full_unstemmed |
Transiting exoplanets from the CoRoT space mission. XXVII. CoRoT-28b, a planet orbiting an evolved star, and CoRoT-29b, a planet showing an asymmetric transit |
title_sort |
transiting exoplanets from the corot space mission. xxvii. corot-28b, a planet orbiting an evolved star, and corot-29b, a planet showing an asymmetric transit |
publishDate |
2015 |
url |
https://hdl.handle.net/20.500.12386/28687 https://doi.org/10.1051/0004-6361/201424501 https://www.aanda.org/articles/aa/full_html/2015/07/aa24501-14/aa24501-14.html |
long_lat |
ENVELOPE(101.133,101.133,-66.117,-66.117) ENVELOPE(-62.993,-62.993,-64.330,-64.330) |
geographic |
Jupiter Norway Observatorio |
geographic_facet |
Jupiter Norway Observatorio |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
ASTRONOMY & ASTROPHYSICS 0004-6361 http://hdl.handle.net/20.500.12386/28687 doi:10.1051/0004-6361/201424501 2-s2.0-84933557322 000358877100048 https://www.aanda.org/articles/aa/full_html/2015/07/aa24501-14/aa24501-14.html 2015A&A.579A.36C |
op_rights |
open |
op_doi |
https://doi.org/20.500.12386/28687 https://doi.org/10.1051/0004-6361/201424501 |
_version_ |
1766043069319217152 |