Planetary eclipse mapping of CoRoT-2a - Evolution, differential rotation, and spot migration
Planetary eclipse mapping of CoRoT-2a - Evolution, differential rotation, and spot migration
复制标题
CoRoT-2a 的行星食测绘 - 演化、差分自转和点偏移
DOI:
10.1051/0004-6361/200913914
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发表时间:
2010
影响因子:
6.5
通讯作者:
J. H. M. M.
中科院分区:
文献类型:
--
作者:
Czesla;Wolter;Schmitt;J. H. M. M.
The lightcurve of CoRoT-2 shows substantial rotational modulation and deformations of the planet's transit profiles caused by starspots. We consistently model the entire lightcurve, including both rotational modulation and transits, stretching over approximately 30 stellar rotations and 79 transits. The spot distribution and its evolution on the noneclipsed and eclipsed surface sections are presented and analyzed, making use of the high resolution achievable under the transit path. We measure the average surface brightness on the eclipsed section to be (5±1)% lower than on the noneclipsed section. Adopting a solar spot contrast, the spot coverage on the entire surface reaches up to 19% and a maximum of almost 40% on the eclipsed section. Features under the transit path, i.e. close to the equator, rotate with a period close to 4.55 days. Significantly higher rotation periods are found for features on the noneclipsed section indicating a differential rotation ofΔΩ> 0.1. Spotted and unspotted regions in both surface sections concentrate on preferred longitudes separated by roughly 180°.
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影响因子:
6.5
作者:
R. Alonso;T. Guillot;T. Mazeh;T. Mazeh;S. Aigrain;A. Alapini;P. Barge;A. Hatzes;F. Pont
通讯作者:
F. Pont
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
R. Alonso;M. Auvergne;A. Baglin;M. Ollivier;C. Moutou;D. Rouan;H. Deeg;S. Aigrain;J. Almenara;M. Barbieri;P. Barge;W. Benz;P. Bord'e;F. Bouchy;R. Reza;M. Deleuil;R. Dvorak;A. Erikson;M. Fridlund;M. Gillon;P. Gondoin;T. Guillot;A. Hatzes;G. H'ebrard;P. Kabáth;L. Jorda;H. Lammer;A. L'eger;A. Llebaria;B. Loeillet;P. Magain;M. Mayor;T. Mazeh;M. Patzold;F. Pepe;F. Pont;D. Queloz;H. Rauer;Avi Shporer;J. Schneider;B. Stecklum;S. Udry;G. Wuchterl
通讯作者:
G. Wuchterl
影响因子:
6.5
作者:
Lanza, A. F.;Pagano, I.;Weiss, W. W.
通讯作者:
Weiss, W. W.
影响因子:
6.5
作者:
S. Czesla;K. Huber;U. Wolter;S. Schröter;J. Schmitt
通讯作者:
S. Czesla;K. Huber;U. Wolter;S. Schröter;J. Schmitt
影响因子:
6.5
作者:
F. Bouchy;D. Queloz;M. Deleuil;B. Loeillet;A. Hatzes;S. Aigrain;R. Alonso;M. Auvergne;A. Baglin;P. Barge;W. Benz;P. Bordé;H. Deeg;R. Reza;R. Dvorak;A. Erikson;M. Fridlund;P. Gondoin;T. Guillot;G. Hébrard;L. Jorda;H. Lammer;A. L'eger;A. Llebaria;P. Magain;M. Mayor;C. Moutou;M. Ollivier;M. Pätzold;F. Pepe;F. Pont;H. Rauer;D. Rouan;J. Schneider;A. Triaud;S. Udry;G. Wuchterl
通讯作者:
G. Wuchterl