Results 1 to 10 of about 74,363 (164)

CHEOPS performance for exomoons: The detectability of exomoons by using optimal decision algorithm [PDF]

, 2015
Many attempts have already been made for detecting exomoons around transiting exoplanets but the first confirmed discovery is still pending. The experience that have been gathered so far allow us to better optimize future space telescopes for this ...
Benz, W., Fortier, A., Kiss, L. L., Simon, A. E., Szabó, Gy. M.   +4 more
core   +4 more sources

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

PEXO : a global modeling framework for nanosecond timing, microsecond astrometry, and μm/s radial velocities [PDF]

, 2019
54 pages, 2 tables, 19 figures, accepted for publication in ApJS, PEXO is available at https://github.com/phillippro/pexoThe ability to make independent detections of the signatures of exoplanets with complementary telescopes and instruments brings a new
Alan P. Boss, Arzoumanian Z., Auer L. H., Beichman C., Catanzarite J., Catanzarite J. H., Damour T., Eastman J., Eastman J., ESA (ed), Event Horizon Telescope Collaboration, Fabian A. C., Fabo Feng, Feng F., Folkner W. M., Folkner W. M., Folkner W. M., Fomalont E. B., Fomalont E. B., Gubler J., Guillem Anglada-Escudé, Hohenkerk C., Holczer T., Hugh R. A. Jones, Irwin A. W., Johns-Krull C. M., Jordán A., Kjeldsen H., Klioner S. A., Klioner S. A., Kopeikin S. M., Kopeikin S. M., Kopeikin S. M., Lelli F., Maksym Lisogorskyi, Mamajek E. E., Mangum J. G., McCarthy D. D., Mignard F., Miralda-Escudé J., Misner C. W., Moe M., Murray C. D., Perryman M., Petit G., Petit G. ed Finkelstein A., Plavchan P., Pourbaix D., Psaltis D. ed Kaaret P., R. Paul Butler, Rüeger J., Sana H., Sergei M. Kopeikin, Standish E., Standish E. M., Thiele T. N., Unwin S. C., Viswanathan V., Weisberg J. M., Wex N., Winn J. N., Wright J. T., Zhao L.   +62 more
core   +3 more sources

Exoplanet Transit Parallax [PDF]

, 2007
The timing and duration of exoplanet transits has a dependency on observer position due to parallax. In the case of an Earth-bound observer with a 2 AU baseline the dependency is typically small and slightly beyond the limits of current timing precision ...
Bienayme O., Caleb A. Scharf, Dravins D.
core   +3 more sources

Using Transit Timing Observations to Search for Trojans of Transiting Extrasolar Planets

, 2007
Theoretical studies predict that Trojans are likely a frequent byproduct of planet formation and evolution. We examine the sensitivity of transit timing observations for detecting Trojan companions to transiting extrasolar planets.
Eric B. Ford, Matthew J. Holman, Steffen J. H.   +2 more
core   +1 more source

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

, 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, Charbonneau, David, Cowan, Nicolas B., Fortney, Jonathan J., Henry, Gregory W., Knutson, Heather A., Showman, Adam P.   +6 more
core   +3 more sources

Analysis of new high-precision transit light curves of WASP-10 b: starspot occultations, small planetary radius, and high metallicity

, 2011
The WASP-10 planetary system is intriguing because different values of radius have been reported for its transiting exoplanet. The host star exhibits activity in terms of photometric variability, which is caused by the rotational modulation of the spots.
Baraffe, Berta, Boisse, Budaj, C. Adam, Carter, Christian, Claret, Czesla, Dittmann, Dittmann, Ducati, Désert, Eastman, Fortney, Fortney, G. Maciejewski, G. Nowak, Girardi, Hartman, Hubbard, Huber, Hébrard, Ikoma, Johnson, Johnson, Krejcová, Kundurthy, Leconte, M. Seeliger, Maciejewski, Mandel, N. Nettelmann, Nettelmann, Poddaný, Pollacco, Pont, Popper, R. Neuhäuser, Sanchis-Ojeda, Saumon, Saumon, Silva, Silva-Valio, Silva-Valio, Skrutskie, Smith, Southworth, Southworth, Southworth, Southworth, Southworth, Southworth, St. Raetz, Van Hamme, Winn, Wolter, Zacharias   +57 more
core   +1 more source

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

, 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, Ford, Eric B., Holczer, Tomer, Jontof-Hutter, Daniel, Mazeh, Tsevi, McQuillan, Amy, Nachmani, Gil, Orosz, Jerome A., Sanchis-Ojeda, Roberto, Shporer, Avi, Welsh, William F.   +10 more
core   +3 more sources

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

, 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, Agol, Alonso, Anglada-Escude, Antoja, Bakos, Baraffe, Baraffe, Barnes, Blaauw, Borucki, C. Marka, Chambers, Christian, Correia, Czesla, D. Dimitrov, Desort, Dias, Dittmann, Eastman, Everett, F. Walter, Fortney, G. Maciejewski, Gibson, H. Takahashi, Harding, Hatzes, Holman, J. Budaj, Johnson, Johnson, K. Tachihara, Kipping, Latham, Lendl, Lindblad, Lomb, M. Mugrauer, Maciejewski, Mandel, Mayor, Mermilliod, Meschiari, Miller-Ricci, Miralda-Escudé, Mugrauer, N. Tetzlaff, Nesvorný, Nesvorný, Niedzielski, Papaloizou, Poddaný, Pollacco, Poveda, R. Neuhäuser, S. Baar, Scargle, Schmidt-Kaler, Schneider, Schwarzenberg-Czerny, Smith, St. Raetz, T. Krejcová, Terndrup, Tetzlaff, Tetzlaff, V. Krushevska, Van Hamme, W. P. Chen, Wielen, Zacharias, Zahn, Zhao   +74 more
core   +1 more source

High-precision photometry of WASP-12 b transits

, 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, Campo, Chambers, Croll, Désert, Eastman, Fossati, Fossati, G. Maciejewski, Hebb, I. Spaleniak, Ibgui, Johnson, Lai, Li, López-Morales, M. Seeliger, Mandel, Miller, Miralda-Escudé, Poddaný, Popper, R. Errmann, R. Neuhäuser, Southworth, Southworth, Southworth, Southworth, Southworth, Southworth, Southworth, Southworth, St. Raetz, Van Hamme, Vidotto, Winn   +35 more
core   +1 more source