Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Keating, Dylan"'
Autor:
May, Erin, Stevenson, Kevin, Bean, Jacob, Bell, Taylor, Cowan, Nicolas, Dang, Lisa, Desert, Jean-Michel, Fortney, Jonathan, Keating, Dylan, Kempton, Eliza, Komacek, Thaddeus, Lewis, Nikole, Mansfield, Megan, Morley, Caroline, Parmentier, Vivien, Rauscher, Emily, Swain, Mark, Zellem, Robert, Showman, Adam
With over 30 phase curves observed during the warm Spitzer mission, the complete data set provides a wealth of information relating to trends and three-dimensional properties of hot Jupiter atmospheres. In this work we present a comparative study of
Externí odkaz:
http://arxiv.org/abs/2203.15059
Autor:
Teinturier, Lucas, Vieira, Nicholas, Jacquet, Elisa, Geoffrion, Juliette, Bestavros, Youssef, Keating, Dylan, Cowan, Nicolas B.
Reflected light photometry of terrestrial exoplanets could reveal the presence of oceans and continents, hence placing direct constraints on the current and long-term habitability of these worlds. Inferring the albedo map of a planet from its observe
Externí odkaz:
http://arxiv.org/abs/2201.00825
Autor:
Cubillos, Patricio E., Keating, Dylan, Cowan, Nicolas B., Vos, Johanna M., Burningham, Ben, Ygouf, Marie, Karalidi, Theodora, Zhou, Yifan, Gonzales, Eileen C.
Thermal phase variations of short period planets indicate that they are not spherical cows: day-to-night temperature contrasts range from hundreds to thousands of degrees, rivaling their vertical temperature contrasts. Nonetheless, the emergent spect
Externí odkaz:
http://arxiv.org/abs/2105.06353
Autor:
Keating, Dylan, Cowan, Nicolas B.
The field of exoplanet atmospheric characterization is trending towards comparative studies involving many planetary systems, and using Bayesian hierarchical modelling is a natural next step. Here we demonstrate two use cases. We first use hierarchic
Externí odkaz:
http://arxiv.org/abs/2103.00010
Autor:
Mansfield, Megan, Schlawin, Everett, Lustig-Yaeger, Jacob, Adams, Arthur D., Rauscher, Emily, Arcangeli, Jacob, Feng, Y. Katherina, Gupta, Prashansa, Keating, Dylan, Stevenson, Kevin B., Beatty, Thomas G.
Planetary atmospheres are inherently 3D objects that can have strong gradients in latitude, longitude, and altitude. Secondary eclipse mapping is a powerful way to map the 3D distribution of the atmosphere, but the data can have large correlations an
Externí odkaz:
http://arxiv.org/abs/2010.02197
Autor:
Bell, Taylor J., Dang, Lisa, Cowan, Nicolas B., Bean, Jacob, Désert, Jean-Michel, Fortney, Jonathan J., Keating, Dylan, Kempton, Eliza, Kreidberg, Laura, Line, Michael R., Mansfield, Megan, Parmentier, Vivien, Stevenson, Kevin B., Swain, Mark, Zellem, Robert T.
We have developed an open-source pipeline for the analysis of \textit{Spitzer}/IRAC channel 1 and 2 time-series photometry, incorporating some of the most popular decorrelation methods. We applied this pipeline to new phase curve observations of ultr
Externí odkaz:
http://arxiv.org/abs/2010.00687
Autor:
Keating, Dylan, Stevenson, Kevin B., Cowan, Nicolas B., Rauscher, Emily, Bean, Jacob L., Bell, Taylor, Dang, Lisa, Deming, Drake, Désert, Jean-Michel, Feng, Y. Katherina, Fortney, Jonathan J., Kataria, Tiffany, Kempton, Eliza M. -R., Lewis, Nikole, Line, Michael R., Mansfield, Megan, May, Erin, Morley, Caroline, Showman, Adam P.
We present \textit{Spitzer} full-orbit thermal phase curves of the hot Jupiter Qatar-1b, a planet with the same equilibrium temperature---and intermediate surface gravity and orbital period---as the well-studied planets HD 209458b and WASP-43b. We me
Externí odkaz:
http://arxiv.org/abs/2004.00014
Autor:
Mansfield, Megan, Bean, Jacob L., Stevenson, Kevin B., Komacek, Thaddeus D., Bell, Taylor J., Tan, Xianyu, Malik, Matej, Beatty, Thomas G., Wong, Ian, Cowan, Nicolas B., Dang, Lisa, Désert, Jean-Michel, Fortney, Jonathan J., Gaudi, B. Scott, Keating, Dylan, Kempton, Eliza M. -R., Kreidberg, Laura, Line, Michael R., Parmentier, Vivien, Stassun, Keivan G., Swain, Mark R., Zellem, Robert T.
Publikováno v:
Astrophysical Journal Letters, 888, L15 (2020)
Phase curve observations provide an opportunity to study the full energy budgets of exoplanets by quantifying the amount of heat redistributed from their daysides to their nightsides. Theories explaining the properties of phase curves for hot Jupiter
Externí odkaz:
http://arxiv.org/abs/1910.01567
Short-period gas giants (hot Jupiters) on circular orbits are expected to be tidally locked into synchronous rotation, with permanent daysides that face their host stars, and permanent nightsides that face the darkness of space. Thermal flux from the
Externí odkaz:
http://arxiv.org/abs/1809.00002