Results 41 to 50 of about 74,778 (164)

Observations of Extrasolar Planets During the non-Cryogenic Spitzer Space Telescope Mission [PDF]

, 2007
Precision infrared photometry from Spitzer has enabled the first direct studies of light from extrasolar planets, via observations at secondary eclipse in transiting systems.
David Charbonneau, Drake Deming, Eric Agol, Heather Knutson, Lisa J. Storrie-Lombardi, Massimo Marengo, Nancy A. Silbermann, Nicolas Cowan   +7 more
core   +2 more sources

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 map of the day-night contrast of the extrasolar planet HD 189733b [PDF]

, 2007
"Hot Jupiter" extrasolar planets are expected to be tidally locked because they are close (
Agol, Eric, Allen, Lori E., Charbonneau, David, Cooper, Curtis S., Cowan, Nicolas B., Fortney, Jonathan J., Knutson, Heather A., Megeath, S. Thomas, Showman, Adam P.   +8 more
core   +2 more sources

A Warm Massive Pair of Planets around TOI-1232 Revealed with Transit-timing Variations and Doppler Spectroscopy

The Astronomical Journal
TOI-1232 is a G dwarf star with a mass of $1.0{6}_{-0.06}^{+0.07}\,{M}_{\odot }$ , a radius of 1.07 ± 0.05 R _⊙ , and a slightly higher metallicity than solar of Fe/H = 0.18 ± 0.05. The star hosts a transiting warm Jovian-mass planet, TOI-1232 b, with an
Deyan P. Mihaylov, Jan Eberhardt, Trifon Trifonov, Rafael Brahm, Thomas Henning, Andrés Jordán, Denitza Stoeva, Matías I. Jones, Lorena Acuña-Aguirre, Stefan Stefanov, M. Tala Pinto, Melissa J. Hobson, Nestor Espinoza, Felipe I. Rojas, Martin Schlecker, Vladimir Bozhilov, Tristan Guillot, Amaury H. M. J. Triaud, Jack J. Lissauer, Judith Korth, Hannu Parviainen, Laura Kreidberg, Philippe Bendjoya, Olga Suarez, Carl Ziegler, Pamela Rowden, Alexander Rudat, Veselin Kostov, Joshua N. Winn, Jon M. Jenkins, Karen A. Collins, Cristilyn N. Watkins, Don J. Radford, Chris Stockdale, Tianjun Gan   +34 more
doaj   +1 more source

TOI-4504: Exceptionally Large Transit Timing Variations Induced by Two Resonant Warm Gas Giants in a Three-planet System

The Astrophysical Journal Letters
We present a joint analysis of transit timing variations (TTVs) and Doppler data for the transiting exoplanet system TOI-4504. TOI-4504 c is a warm Jupiter-mass planet that exhibits the largest known TTVs, with a peak-to-node amplitude of ∼2 days, the ...
Michaela Vítková, Rafael Brahm, Trifon Trifonov, Petr Kabáth, Andrés Jordán, Thomas Henning, Melissa J. Hobson, Jan Eberhardt, Marcelo Tala Pinto, Felipe I. Rojas, Nestor Espinoza, Martin Schlecker, Matías I. Jones, Maximiliano Moyano, Susana Eyheramendy, Carl Ziegler, Jack J. Lissauer, Andrew Vanderburg, Karen A. Collins, Bill Wohler, David Watanabe, George R. Ricker, Roland Vanderspek, Sara Seager, Joshua N. Winn, Jon M. Jenkins, Marek Skarka   +26 more
doaj   +1 more source

Constraining the Presence of Companion Planets in Hot Jupiter Planetary Systems Using Transit-timing Variation Observations from TESS

The Astrophysical Journal Supplement Series
The presence of another planetary companion in a transiting exoplanet system can impact its transit light curve, leading to sinusoidal transit-timing variations (TTV).
Zixin Zhang, Wenqin Wang, Xinyue Ma, Zhangliang Chen, Yonghao Wang, Cong Yu, Shangfei Liu, Yang Gao, Baitian Tang, Bo Ma   +9 more
doaj   +1 more source

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

TOI-4495: A Pair of Aligned, Near-resonant Sub-Neptunes That Likely Experienced Overstable Migration

The Astronomical Journal
We report the discovery of a sub-Neptune and a Neptune-like planet ( R ${}_{b}=2.4{8}_{-0.10}^{+0.14}$ R _⊕ , R ${}_{c}=4.0{3}_{-0.15}^{+0.23}$ R _⊕ ) orbiting the F-type star TOI-4495.
Mu-Tian Wang, Fei Dai, Hui-Gen Liu, Kento Masuda, Andrew W. Howard, Samuel Halverson, Howard Isaacson, Elina Y. Zhang, Max Goldberg, Huan-Yu Teng, Ryan A. Rubenzahl, Benjamin Fulton, Erik A. Petigura, Steven Giacalone, Luke Handley, David W. Latham, Allyson Bieryla, Ashley Baker, Jerry Edelstein, Steven R. Gibson, Kodi Rider, Arpita Roy, Chris Smith, Josh Walawender, David Rapetti, Jon M. Jenkins, Joshua N. Winn   +26 more
doaj   +1 more source

The Kepler-19 System: A Transiting 2.2 R_⊕ Planet and a Second Planet Detected via Transit Timing Variations [PDF]

, 2011
We present the discovery of the Kepler-19 planetary system, which we first identified from a 9.3 day periodic transit signal in the Kepler photometry. From high-resolution spectroscopy of the star, we find a stellar effective temperature T_(eff) = 5541 ±
Ballard, Sarah, Ciardi, David R.
core  

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