Results 21 to 30 of about 74,778 (164)

Time variation of Kepler transits induced by stellar spots - a way to distinguish between prograde and retrograde motion. II. Application to KOIs [PDF]

open access: yes, 2015
Mazeh, Holczer, and Shporer (2015) have presented an approach that can, in principle, use the derived transit timing variation (TTV) of some transiting planets observed by the $Kepler$ mission to distinguish between prograde and retrograde motion of ...
Fabrycky, Dan   +10 more
core   +3 more sources

Transit timing variation and activity in the WASP-10 planetary system

open access: yes, 2010
Transit timing analysis may be an effective method of discovering additional bodies in extrasolar systems which harbour transiting exoplanets. The deviations from the Keplerian motion, caused by mutual gravitational interactions between planets, are ...
A. Niedzielski   +74 more
core   +1 more source

How to determine an exomoon's sense of orbital motion [PDF]

open access: yes, 2014
We present two methods to determine an exomoon's sense of orbital motion (SOM), one with respect to the planet's circumstellar orbit and one with respect to the planetary rotation. Our simulations show that the required measurements will be possible with
Albrecht, Simon, Heller, René
core   +1 more source

High-precision photometry of WASP-12 b transits

open access: yes, 2011
The transiting extrasolar planet WASP-12 b was found to be one of the most intensely irradiated exoplanets. It is unexpectedly bloated and is losing mass that may accrete into the host star.
Agol   +35 more
core   +1 more source

Practical suggestions on detecting exomoons in exoplanet transit light curves

open access: yes, 2010
The number of known transiting exoplanets is rapidly increasing, which has recently inspired significant interest as to whether they can host a detectable moon. Although there has been no such example where the presence of a satellite was proven, several
Kiss, L. L.   +3 more
core   +1 more source

Searching for Transit Timing Variations in Young Transiting Systems

open access: yesThe Astronomical Journal
The discovery of young (4 σ ), although differences in methodology make a totally fair comparison challenging. We show that spots have a weak-to-negligible impact on our results, and similarly cannot explain the higher TTV fraction.
Ana Isabel Lopez Murillo   +5 more
doaj   +1 more source

The 8 Micron Phase Variation of the Hot Saturn HD 149026b [PDF]

open access: yes, 2009
We monitor the star HD 149026 and its Saturn-mass planet at 8.0 micron over slightly more than half an orbit using the Infrared Array Camera (IRAC) on the Spitzer Space Telescope. We find an increase of 0.0227% +/- 0.0066% (3.4 sigma significance) in the
Agol, Eric   +6 more
core   +3 more sources

Evidence for a planetary mass third body orbiting the binary star KIC 5095269 [PDF]

open access: yes, 2017
In this paper, we report the evidence for a planetary mass body orbiting the close binary star KIC 5095269. This detection arose from a search for eclipse timing variations among the more than 2,000 eclipsing binaries observed by Kepler.
Carter, B.   +3 more
core   +3 more sources

Doomed Worlds. II. Reassessing Suggestions of Orbital Decay for TrES-5 b

open access: yesThe Planetary Science Journal
TrES-5 b is one of only three ultrahot Jupiters with suggestions of a possibly decreasing orbital period that have persisted through multiple independent analyses.
Marvin Rothmeier   +11 more
doaj   +1 more source

Photometric Investigation of Hot Exoplanets: TrES-3b and Qatar-1b [PDF]

open access: yes, 2017
New photometric follow-up observations of exoplanet transits of 'hot Jupiters' TrES-3b and Qatar-1b are presented. Weighted mean values of the solutions of light curves in R-fiter for both planetary systems are reported and compared with the previous ...
Budding, Edwin   +3 more
core   +2 more sources

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