Results 31 to 40 of about 74,778 (164)

Probing the Possible Causes of the Transit Timing Variation for TrES-2b in the TESS Era

The Astronomical Journal
Nowadays, transit timing variations (TTVs) are proving to be a very valuable tool in exoplanetary science to detect exoplanets by observing variations in transit times. To study the TTV of the hot Jupiter TrES-2b, we have combined 64 high-quality transit
Shraddha Biswas, D. Bisht, Ing-Guey Jiang, Devesh P. Sariya, Kaviya Parthasarathy   +4 more
doaj   +1 more source

TOI-199 b: A Well-characterized 100 day Transiting Warm Giant Planet with TTVs Seen from Antarctica

The Astronomical Journal, 2023
We present the spectroscopic confirmation and precise mass measurement of the warm giant planet TOI-199 b. This planet was first identified in TESS photometry and confirmed using ground-based photometry from ASTEP in Antarctica including a full 6.5 hr ...
Melissa J. Hobson, Trifon Trifonov, Thomas Henning, Andrés Jordán, Felipe Rojas, Nestor Espinoza, Rafael Brahm, Jan Eberhardt, Matías I. Jones, Djamel Mekarnia, Diana Kossakowski, Martin Schlecker, Marcelo Tala Pinto, Pascal José Torres Miranda, Lyu Abe, Khalid Barkaoui, Philippe Bendjoya, François Bouchy, Marco Buttu, Ilaria Carleo, Karen A. Collins, Knicole D. Colón, Nicolas Crouzet, Diana Dragomir, Georgina Dransfield, Thomas Gasparetto, Robert F. Goeke, Tristan Guillot, Maximilian N. Günther, Saburo Howard, Jon M. Jenkins, Judith Korth, David W. Latham, Monika Lendl, Jack J. Lissauer, Christopher R. Mann, Ismael Mireles, George R. Ricker, Sophie Saesen, Richard P. Schwarz, S. Seager, Ramotholo Sefako, Avi Shporer, Chris Stockdale, Olga Suarez, Thiam-Guan Tan, Amaury H. M. J. Triaud, Solène Ulmer-Moll, Roland Vanderspek, Joshua N. Winn, Bill Wohler, George Zhou   +51 more
doaj   +1 more source

Multi-site campaign for transit timing variations of WASP-12 b: possible detection of a long-period signal of planetary origin

, 2013
The transiting planet WASP-12 b was identified as a potential target for transit timing studies because a departure from a linear ephemeris was reported in the literature. Such deviations could be caused by an additional planet in the system.
Benko, J. M., Berndt, A., Bukowiecki, L., Chen, W. P., Ciceri, S., Corfini, G., Dall'Ora, M., Dimitrov, D., Errmann, R., Gilbert, H., Ginski, Ch., Gozdziewski, K., Hinse, T. C., Hohle, M. M., Joshi, Y. C., Kitze, M., Lee, C. -U., Lee, J. W., Maciejewski, G., Mancini, L., Marka, C., Mugrauer, M., Neuhaeuser, R., Niedzielski, A., Nowak, G., Ohlert, J., Popov, V., Raetz, St., Roell, T., Sarneczky, K., Schmidt, T. O. B., Seeliger, M., Southworth, J., Szabo, Gy. M., Tachihara, K., Takahashi, H., Tetzlaff, N., Vanko, M., Varga, T. N., Yoon, J. -N., Zambelli, R.   +40 more
core   +1 more source

Long-term Variations in the Orbital Period of Hot Jupiters from Transit-timing Analysis Using TESS Survey Data

The Astrophysical Journal Supplement Series
Many hot Jupiters may experience orbital decays, which are manifested as long-term transit-timing variations. We have analyzed 7068 transits from the Transiting Exoplanet Survey Satellite (TESS) for a sample of 326 hot Jupiters.
Wenqin Wang, Zixin Zhang, Zhangliang Chen, Yonghao Wang, Cong Yu, Bo Ma   +5 more
doaj   +1 more source

Refining the Transit-timing and Photometric Analysis of TRAPPIST-1: Masses, Radii, Densities, Dynamics, and Ephemerides

The Planetary Science Journal, 2021
We have collected transit times for the TRAPPIST-1 system with the Spitzer Space Telescope over four years. We add to these ground-based, HST, and K2 transit-time measurements, and revisit an N -body dynamical analysis of the seven-planet system using ...
Eric Agol, Caroline Dorn, Simon L. Grimm, Martin Turbet, Elsa Ducrot, Laetitia Delrez, Michaël Gillon, Brice-Olivier Demory, Artem Burdanov, Khalid Barkaoui, Zouhair Benkhaldoun, Emeline Bolmont, Adam Burgasser, Sean Carey, Julien de Wit, Daniel Fabrycky, Daniel Foreman-Mackey, Jonas Haldemann, David M. Hernandez, James Ingalls, Emmanuel Jehin, Zachary Langford, Jérémy Leconte, Susan M. Lederer, Rodrigo Luger, Renu Malhotra, Victoria S. Meadows, Brett M. Morris, Francisco J. Pozuelos, Didier Queloz, Sean N. Raymond, Franck Selsis, Marko Sestovic, Amaury H. M. J. Triaud, Valerie Van Grootel   +34 more
doaj   +1 more source

Transit Timing and Duration Variations for the Discovery and Characterization of Exoplanets

, 2017
Transiting exoplanets in multi-planet systems have non-Keplerian orbits which can cause the times and durations of transits to vary. The theory and observations of transit timing variations (TTV) and transit duration variations (TDV) are reviewed.
A Pál, A Wolszczan, AR Dobrovolskis, BT Montet, BT Montet, C Beichman, C Sterken, C Wilson, D Jontof-Hutter, D Nesvorný, D Nesvorný, D Nesvorný, D Nesvorný, D Nesvorný, D Nesvorný, D Nesvorný, D Ragozzine, DM Kipping, DV Martin, E Agol, E Agol, EJ Lee, EM Price, G Laughlin, GM Szabó, GR Ricker, H Rauer, J Eastman, J Miralda-Escudé, J Schneider, JA Carter, JA Carter, JA Carter, JC Adams, JC Becker, JH Steffen, JH Steffen, JH Steffen, JJ Lissauer, JM Almenara, JM Almenara, JS Heyl, JW Barnes, JW Xie, K Masuda, KM Deck, KM Deck, LR Doyle, M Gillon, M Oshagh, MJ Holman, MJ Holman, NP Gibson, P Ioannidis, P Mayer, RI Dawson, RK Ulrich, S Ginzburg, S Hadden, S Hadden, S Hadden, S Meschiari, S Seager, SCC Barros, SM Mills, SM Mills, SM Mills, T Borkovits, UJ Verrier Le, VB Kostov, VB Kostov, WD Cochran, WF Welsh, Y Lithwick   +73 more
core   +1 more source

Revisiting the Orbital Dynamics of the Hot Jupiter WASP-12 b with New Transit Times

The Astronomical Journal
In this study, we examine the transit timing deviations of the extensively studied hot Jupiter WASP-12 b using a comprehensive data set of 391 transit light curves.
Shraddha Biswas, Ing-Guey Jiang, Li-Chin Yeh, Hsin-Min Liu, Kaviya Parthasarathy, D. Bisht, Sandip K Chakrabarti, D. Bhowmick, Mohit Singh Bisht, A. Raj, Bryan E. Martin, R. K. S. Yadav, Geeta Rangwal   +12 more
doaj   +1 more source

Investigating Transit Timing Variations in the Ultrashort Period Exoplanet WASP-19b

The Astronomical Journal
In this study, we present a comprehensive analysis of transit timing variations (TTVs) in the ultrashort-period gas giant WASP-19b, which orbits a G-type main-sequence star.
Shraddha Biswas, Ing-Guey Jiang, Li-Chin Yeh, Hsin-Min Liu, Kaviya Parthasarathy, Devesh P. Sariya, D. Bisht, Mohit Singh Bisht, A. Raj   +8 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

Metrics for Optimizing Searches for Orbital Precession and Tidal Decay via Transit Timing and Occultation Timing

The Astronomical Journal
Short-period exoplanets may exhibit orbital precession driven by several different processes, including tidal interactions with their host stars and secular interactions with additional planets.
Brian Jackson, Elisabeth R. Adams, Rachel M. Huchmala, Malia Barker, Marvin Rothmeier, Jeffrey P. Morgenthaler, Amanda A. Sickafoose   +6 more
doaj   +1 more source