Detection of orbital parameter changes in the TrES-2 exoplanet?
Detection of orbital parameter changes in the TrES-2 exoplanet?
复制标题
检测TrES-2系外行星轨道参数变化?
DOI:
10.1051/0004-6361/200811424
复制
发表时间:
2009
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:
Mislis;Schmitt;J. H. M. M.
We report a possible change in the orbit parameters of the TrES-2 exoplanet. With a period of 2.470621 days, the TrES-2 exoplanet exhibits almost “grazing” transits 110.4 min duration as measured in 2006 by Holman and collaborators. We observed two transits of TrES-2 in 2008 using the 1.2 m Oskar-Lühning telescope (OLT) of Hamburg observatory employing CCD photometry in ani-band and a near toR-band filter. A careful lightcurve analysis including a re-analysis of the 2006 observations shows that the current transit duration has shortened since 2006 by 3.16 min. Although the new observations were taken in a different filter we argue that the observed change in transit duration time cannot be attributed to the treatment of limb darkening. If we assume the stellar and planetary radii to be constant, a change in orbit inclination is the most likely cause of this change in transit duration.
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DOI:
10.1111/j.1365-2966.2008.13658.x
发表时间:
2008
影响因子:
4.8
作者:
D. Kipping
通讯作者:
D. Kipping
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
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R. Gilliland
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
T. Mazeh
通讯作者:
T. Mazeh
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
D. Charbonneau;J. Winn;D. Latham;G. Bakos;E. Falco;M. Holman;R. Noyes;B. Csák;G. Esquerdo;M. Everett;F. O'Donovan
通讯作者:
F. O'Donovan
DOI:
10.1086/519077
发表时间:
2007
期刊:
The Astrophysical Journal
影响因子:
--
作者:
M. Holman;J. Winn;D. Latham;F. O'Donovan;D. Charbonneau;G. Torres;A. Sozzetti;J. Fernández;M. Everett
通讯作者:
M. Everett