Results 131 to 140 of about 2,666 (219)

Concealing Circumbinary Planets with Tidal Shrinkage

The Astrophysical Journal
Of the 14 transiting planets that have been detected orbiting eclipsing binaries (“circumbinary planets”), none have been detected with stellar binary orbital periods shorter than 7 days, despite such binaries existing in abundance.
Saahit Mogan, J.J. Zanazzi
doaj   +1 more source

A JWST Transit of a Jupiter Analog. I. Constraints on the Oblateness of Kepler-167 e

The Astronomical Journal
In 2024 October, JWST observed a transit of Kepler-167 e, a Jupiter-analog planet on a 1000+ day orbit. These observations, recorded over a long baseline of nearly 60 hr, were designed to search for signatures of planetary oblateness and/or exomoons ...
Ben Cassese, David Kipping, Quentin Changeat, Daniel A. Yahalomi, Justin Vega, Yayaati Chachan, Billy Edwards, Alex Teachey   +7 more
doaj   +1 more source

Extracting starspot structures from exoplanet transit photometry

Astronomy & Astrophysics
Context . Future space-based transit photometry can provide empirical comparisons of solar and stellar spot structures with high precision. Spot transit mapping provides a way to directly observe and characterize the location, size, intensity, and evolution of starspots to infer stellar rotation rates and ...
S. M. Zaleski, A. Valio, B. Carter
openaire   +1 more source

TOI-6695: A Pair of Near-resonant Massive Planets Observed with TESS from the WINE Survey

The Astronomical Journal
We present the discovery and characterization of a pair of warm Jovian-mass exoplanets orbiting the Sun-like star TOI-6695, based on Transiting Exoplanet Survey Satellite (TESS) transits and precise radial velocity (RV) measurements obtained with FEROS ...
Jan Eberhardt, Trifon Trifonov, Thomas Henning, Marcelo Tala Pinto, Rafael Brahm, Andrés Jordán, Nestor Espinoza, Matías I. Jones, Melissa J. Hobson, Felipe I. Rojas, Martin Schlecker, Lorena Acuña, Remo Burn, Gavin Boyle, Rodrigo Leiva, James McCormac, Nicholas Dunckel, Diana Dragomir, Jeffrey D. Crane, Stephen Shectman, Johanna K. Teske, David Osip, Arvind F. Gupta, Solène Ulmer-Moll, François Bouchy, Monika Lendl, Davide Gandolfi, George R. Ricker, Jon M. Jenkins, Sara Seager, Joshua N. Winn   +30 more
doaj   +1 more source

Validation of TESS Planet Candidates with Multicolor Transit Photometry and TRICERATOPS+

The Astronomical Journal
We present an upgraded version of TRICERATOPS , a software package designed to calculate false positive probabilities for planet candidates identified by the Transiting Exoplanet Survey Satellite (TESS).
Jonathan Gomez Barrientos, Michael Greklek-McKeon, Heather A. Knutson, Steven Giacalone, W. Garrett Levine, Morgan Saidel, Shreyas Vissapragada, David R. Ciardi, Karen A. Collins, David W. Latham, Cristilyn N. Watkins, Polina A. Budnikova, Dmitry V. Cheryasov, Akihiko Fukui, Allyson Bieryla, Avi Shporer, Benjamin M. Tofflemire, Catherine A. Clark, Chris Stockdale, Colin Littlefield, Emily Gilbert, Enric Palle, Eric Girardin, Felipe Murgas, Galen J. Bergsten, Hugh P. Osborn, Ian J. M. Crossfield, Jerome de Leon, Jesus Higuera, Keisuke Isogai, Mark E. Everett, Michael B. Lund, Norio Narita, Richard P. Schwarz, Roberto Zambelli, Steve B. Howell   +35 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

Simultaneous multicolour transit photometry of hot Jupiters HAT-P-19b, HAT-P-51b, HAT-P-55b, and HAT-P-65b

Accurate physical parameters of exoplanet systems are essential for further exploration of planetary internal structure, atmospheres, and formation history.
Tamura, M.,, Pallé, E.,, Fukui, A.,, de Leon, J.,, Meni, P.,, Livingston, J. H.,, Kawauchi, K.,, Enoc, G., Hayashi, Y.,, Fukuda, I., Hayashi, Y., Kawauchi, K., Korth, J., Rodriguez, P. Montañes,, Isogai, K.,, de Leon, J., Mori, M.,, Parviainen, H., Peláez-Torres, A., Mori, M., Kagetani, T., Kang, H., García, N. Abreu,, Narita, N., Fukui, A., Esparza-Borges, E.,, Luque, R., Fukuda, I.,, Parviainen, H.,, Watanabe, N., Lund University., Pallé, E., Murgas, F., Galán, D., Orell-Miquel, J., Madrigal-Aguado, A.,, Orell-Miquel, J.,, Kang, H.,, Chen, G.,, Ma, Y., Tamura, M., Peláez-Torres, A.,, Stangret, M.,, Korth, J.,, Esparza-Borges, E., Isogai, K., Watanabe, N.,, Stangret, M., Galán, D.,, Chen, G., García, N. Abreu, Torres, S. Muñoz, Murgas, F.,, Torres, S. Muñoz,, Madrigal-Aguado, A., Meni, P., Enoc, G.,, Narita, N.,, Livingston, J. H., Ma, Y.,, Rodriguez, P. Montañes, Kagetani, T.,   +61 more
core   +1 more source

Transit Photometry with the LCOGT Network [PDF]

, 2013
Within a single year, we deployed and commissioned a total of seven 1m telescopes to three sites (McDonald Observatory, CTIO and SAAO). These are complemented by two existing 2m telescopes, located in the northern (Haleakala) and southern (Siding Spring ...
Tsapras, Y., Lister, T., Brown, T., Ross, R., Eastman, J., Dragomir, Diana, Street, R., Fulton, B.   +7 more
core  

Searching for transits in the Wide Field Camera Transit Survey with difference-imaging light curves

, 2013
The Wide Field Camera Transit Survey is a pioneer program aiming at for searching extra-solar planets in the near-infrared. The images from the survey are processed by a data reduction pipeline, which uses aperture photometry to construct the light ...
Carlos del Burgo Díaz
core  

Multicolour photometry for exoplanet candidate validation

, 2019
Context. The TESS and PLATO missions are expected to find vast numbers of new transiting planet candidates. However, only a fraction of these candidates will be legitimate planets, and the candidate validation will require a significant amount of follow ...
N. Watanabe, H. Parviainen, E. Palle, T. Nishiumi, P. Montanes Rodriguez, V. J. S. Béjar, B. Tingley, N. Narita, A. Fukui, R. Luque, J. Prieto-Arranz, H. J. Deeg, D. Hidalgo Soto, R. Alonso, P. Klagyivik, N. Kusakabe, M. Tamura, F. Murgas, N. Crouzet, M. Mori, N. Casasayas Barris   +20 more
core   +1 more source