Results 41 to 50 of about 74,363 (164)

An Independent Analysis of Kepler-4b through Kepler-8b

, 2011
We present two independent, homogeneous, global analyses of the transit light curves, radial velocities and spectroscopy of Kepler-4b through Kepler-8b, with numerous differences over the previous methods.
Adams, Bakos, Barnes, Barnes, Beaulieu, Berdyugina, Berdyugina, Borucki, Burrows, Carpenter, Carter, Christensen-Dalsgaard, Claret, Cowan, David Kipping, Deming, Dunham, Díaz-Cordovés, Ford, Ford, Fortney, Gauss, Gibson, Gáspár Bakos, Hartman, Jenkins, Jenkins, Jenkins, Kipping, Koch, Kurucz, Latham, Liddle, Mandel, Nesvorny, Press, Pál, Pál, Ribas, Rowe, Skrutskie, Tingley, Torres, Veras, Welsh, Yi   +45 more
core   +1 more source

Exoplanet Ephemerides Change Observations (ExoEcho). II. Transit Timing Variation Analysis of Brown Dwarfs around Solar-type Stars

The Astrophysical Journal
Transit timing variation (TTV) is a useful tool for studying the orbital properties of transiting objects. However, few TTV studies have been done on transiting brown dwarfs (BDs) around solar-type stars.
Wenqin Wang, Xinyue Ma, Zhangliang Chen, Cong Yu, Shangfei Liu, Bo Ma   +5 more
doaj   +1 more source

Methods for exomoon characterisation: combining transit photometry and the Rossiter-McLaughlin effect

, 2010
It has been suggested that moons around transiting exoplanets may cause observable signal in transit photometry or in the Rossiter-McLaughlin (RM) effect.
A. E. Simon, Agol, Arentoft, Asimov, Barnes, Bean, Bertelli, Boesgaard, Bouchy, Claret, Díaz, Gaudi, Gilliland, Girardi, Gy. M. Szabó, Ida, Jenkins, K. Szatmáry, Kennedy, Kipping, Kipping, Kipping, Kjeldsen, L. L. Kiss, Lagrange, Lewis, Li, Liebig, O'Toole, Pál, Queloz, Queloz, Rivera, Saar, Sartoretti, Simon, Simon, Szabó Gy., Triaud, Wagner, Wright   +40 more
core   +1 more source

A Transiting Giant on a 7.7 yr Orbit Revealed by Transit Timing Variations in the TOI-201 System

The Astrophysical Journal Letters
We report the detection and characterization of TOI-201 c, a long-period transiting companion to the warm Jupiter TOI-201 b. Its presence was first inferred from high-amplitude transit timing variations (TTVs) in TOI-201 b, pointing to a massive outer ...
Gracjan Maciejewski, Weronika Łoboda
doaj   +1 more source

Validation of a Third Planet in the LHS 1678 System

The Astronomical Journal
The nearby LHS 1678 (TOI-696) system contains two confirmed planets and a wide-orbit, likely brown-dwarf companion, which orbit an M2 dwarf with a unique evolutionary history. The host star occupies a narrow “gap” in the Hertzsprung–Russell diagram lower
Michele L. Silverstein, Thomas Barclay, Joshua E. Schlieder, Karen A. Collins, Richard P. Schwarz, Benjamin J. Hord, Jason F. Rowe, Ethan Kruse, Nicola Astudillo-Defru, Xavier Bonfils, Douglas A. Caldwell, David Charbonneau, Ryan Cloutier, Kevin I. Collins, Tansu Daylan, William Fong, Jon M. Jenkins, Michelle Kunimoto, Scott McDermott, Felipe Murgas, Enric Palle, George R. Ricker, Sara Seager, Avi Shporer, Evan Tey, Roland Vanderspek, Joshua N. Winn   +26 more
doaj   +1 more source

No variations in transit times for Qatar-1 b

, 2015
The transiting hot Jupiter planet Qatar-1 b was presented to exhibit variations in transit times that could be of perturbative nature. A hot Jupiter with a planetary companion on a nearby orbit would constitute an unprecedented planetary configuration ...
Aceituno, F. J., Dimitrov, D., Errman, R., Fernández, M., Gilbert, H., Kitze, M., Maciejewski, G., Neuhäuser, R., Ohlert, J., Pannicke, A., Puchalski, D., Raetz, St., Schmidt, J. -G., Seeliger, M.   +13 more
core   +1 more source

Exoplanet Ephemerides Change Observations (ExoEcho). I. Transit Timing Analysis of 37 Exoplanets Using HST/WFC3 Data

The Astronomical Journal
The ExoEcho project is designed to study the photodynamics of exoplanets by leveraging high-precision transit timing data from ground- and space-based telescopes.
Xinyue Ma, Wenqin Wang, Zixin Zhang, Cong Yu, Dichang Chen, Jiwei Xie, Shangfei Liu, Li Zhou, Bo Ma   +8 more
doaj   +1 more source

Kepler-210: An active star with at least two planets

, 2014
We report the detection and characterization of two short-period, Neptune-sized planets around the active host star Kepler-210. The host star's parameters derived from those planets are (a) mutually inconsistent and (b) do not conform to the expected ...
Agol, E., Avdellidou, Ch., Ioannidis, P., Schmitt, J. H. M. M., von Essen, C.   +4 more
core   +1 more source

Doomed Worlds. I. No New Evidence for Orbital Decay in a Long-term Survey of 43 Ultrahot Jupiters

The Planetary Science Journal
Ultrahot Jupiters (UHJs) are likely doomed by tidal forces to undergo orbital decay and eventual disruption by their stars, but the timescale over which this process unfolds is unknown. We present results from a long-term project to monitor UHJ transits.
Elisabeth R. Adams, Brian Jackson, Amanda A. Sickafoose, Jeffrey P. Morgenthaler, Hannah Worters, Hailey Stubbers, Dallon Carlson, Sakhee Bhure, Stijn Dekeyser, Chelsea X. Huang, Nevin N. Weinberg   +10 more
doaj   +1 more source

The Quasiperiodic Automated Transit Search Algorithm

, 2012
We present a new algorithm for detecting transiting extrasolar planets in time-series photometry. The Quasiperiodic Automated Transit Search (QATS) algorithm relaxes the usual assumption of strictly periodic transits by permitting a variable, but bounded,
Agol, Eric, Carter, Joshua A.
core   +1 more source