A planetary eclipse map of CoRoT-2a - Comprehensive lightcurve modeling combining rotational-modulation and transits

A planetary eclipse map of CoRoT-2a - Comprehensive lightcurve modeling combining rotational-modulation and transits
复制标题

CoRoT-2a 的行星食图 - 结合旋转调制和凌日的综合光曲线建模

DOI:
10.1051/0004-6361/200912867
复制
发表时间:
2009
影响因子:
6.5
通讯作者:
J. H. M. M.
J. H. M. M.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Czesla;Wolter;Schmitt;J. H. M. M.

文献摘要

参考文献

被引文献

相似文献

我们使用 CoRoT 任务提供的数据,使用“全局”(即旋转调制)光曲线和凌日光曲线的一致模型来分析行星主星 CoRoT-2a 的表面结构。在选择了涵盖行星伴星CoRoT-2b的两次恒星自转和六次凌日的时间间隔后,我们采用了表面的“条带”模型来同时再现凌日内部和外部的光度调制。我们的重建表明,使用具有 36 个条带的低分辨率表面模型可以实现整个子区间的适当拟合。表面重建表明,恒星表面被遮蔽部分的亮度比其余表面的平均亮度低(6±1)%。这一结果表明恒星活动集中在恒星赤道周围的带中,类似于在太阳上观察到的行为。
We analyze the surface structure of the planet host star CoRoT-2a using a consistent model for both the “global” (i.e., rotationally modulated) lightcurve and the transit lightcurves, using data provided by the CoRoT mission. After selecting a time interval covering two stellar rotations and six transits of the planetary companion CoRoT-2b, we have adopted a “strip” model of the surface to reproduce the photometric modulation inside and outside the transits simultaneously. Our reconstructions show that it is possible to achieve appropriate fits for the entire subinterval using a low-resolution surface model with 36 strips. The surface reconstructions indicate that the brightness on the eclipsed section of the stellar surface is (6±1)% lower than the average brightness of the remaining surface. This result suggests a concentration of stellar activity in a band around the stellar equator similar to the behavior observed on the Sun.
凌日系外行星 CoRoT-2b 的二次日食
DOI: 10.1051/0004-6361/200912505
发表时间: 2009
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
DOI: 10.1051/0004-6361:200810591
发表时间: 2009-01-01
影响因子: 6.5
作者:
Lanza, A. F.;Pagano, I.;Weiss, W. W.
通讯作者: Weiss, W. W.
斑点星的多​​普勒成像:应用于 RS Canum VENATICORUM STAR HR 1099。
DOI: 10.1086/131208
发表时间: 1983
影响因子: 3.5
作者:
Steven S. Vogt;G. Penrod
通讯作者: G. Penrod
DOI: 10.1051/0004-6361:200809433
发表时间: 2008
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