Zobrazeno 1 - 10
of 989
pro vyhledávání: '"Fortney, Jonathan J."'
Autor:
Piaulet-Ghorayeb, Caroline, Benneke, Bjorn, Radica, Michael, Raul, Eshan, Coulombe, Louis-Philippe, Ahrer, Eva-Maria, Kubyshkina, Daria, Howard, Ward S., Krissansen-Totton, Joshua, MacDonald, Ryan, Roy, Pierre-Alexis, Louca, Amy, Christie, Duncan, Fournier-Tondreau, Marylou, Allart, Romain, Miguel, Yamila, Schlichting, Hilke E., Welbanks, Luis, Cadieux, Charles, Dorn, Caroline, Evans-Soma, Thomas M., Fortney, Jonathan J., Pierrehumbert, Raymond, Lafreniere, David, Acuna, Lorena, Komacek, Thaddeus, Innes, Hamish, Beatty, Thomas G., Cloutier, Ryan, Doyon, Rene, Gagnebin, Anna, Gapp, Cyril, Knutson, Heather A.
With sizable volatile envelopes but smaller radii than the solar system ice giants, sub-Neptunes have been revealed as one of the most common types of planet in the galaxy. While the spectroscopic characterization of larger sub-Neptunes (2.5-4R$_\opl
Externí odkaz:
http://arxiv.org/abs/2410.03527
Publikováno v:
Nature Communications 15, 8374 (2024)
Exoplanet exploration has revealed that many$\unicode{x2013}$perhaps most$\unicode{x2013}$terrestrial exoplanets formed with substantial H$_2$-rich envelopes, seemingly in contrast to solar system terrestrials, for which there is scant evidence of lo
Externí odkaz:
http://arxiv.org/abs/2409.18940
Autor:
Luu, Cindy N., Yu, Xinting, Glein, Christopher R., Innes, Hamish, Aguichine, Artyom, Krissansen-Totton, Joshua, Moses, Julianne I., Tsai, Shang-Min, Zhang, Xi, Truong, Ngoc, Fortney, Jonathan J.
Temperate exoplanets between the sizes of Earth and Neptune, known as "sub-Neptunes", have emerged as intriguing targets for astrobiology. It is unknown whether these planets resemble Earth-like terrestrial worlds with a habitable surface, Neptune-li
Externí odkaz:
http://arxiv.org/abs/2409.06258
Autor:
Dang, Lisa, Bell, Taylor J., Ying, Shu, Cowan, Nicolas B., Bean, Jacob L., Deming, Drake, Kempton, Eliza M. -R., Mansfield, Megan Weiner, Rauscher, Emily, Parmentier, Vivien, Stevenson, Kevin B., Swain, Mark, Kreidberg, Laura, Kataria, Tiffany, Désert, Jean-Michel, Zellem, Robert, Fortney, Jonathan J., Lewis, Nikole K., Line, Michael, Morley, Caroline, Showman, Adam
Although exoplanetary science was not initially projected to be a substantial part of the Spitzer mission, its exoplanet observations set the stage for current and future surveys with JWST and Ariel. We present a comprehensive reduction and analysis
Externí odkaz:
http://arxiv.org/abs/2408.13308
Autor:
Chen, Xueqing, Biller, Beth A., Vos, Johanna M., Crossfield, Ian J. M., Mace, Gregory N., Hood, Callie E., Tan, Xianyu, Allers, Katelyn N., Martin, Emily C., Bubb, Emma, Fortney, Jonathan J., Morley, Caroline V., Hammond, Mark
Brown dwarfs and planetary-mass companions display rotationally modulated photometric variability, especially those near the L/T transition. This variability is commonly attributed to top-of-atmosphere (TOA) inhomogeneities, with proposed models incl
Externí odkaz:
http://arxiv.org/abs/2408.09606
Autor:
Wiser, Lindsey S., Line, Michael R., Welbanks, Luis, Mansfield, Megan, Parmentier, Vivien, Bean, Jacob L., Fortney, Jonathan J.
Publikováno v:
ApJ 971 33 (2024)
We present a population-level analysis of the dayside thermal emission spectra of 19 planets observed with Hubble WFC3 and Spitzer IRAC 3.6 and 4.5 microns, spanning equilibrium temperatures 1200-2700 K and 0.7-10.5 Jupiter masses. We use grids of pl
Externí odkaz:
http://arxiv.org/abs/2408.06442
Autor:
Barat, Saugata, Désert, Jean-Michel, Goyal, Jayesh M., Vazan, Allona, Kawashima, Yui, Fortney, Jonathan J., Bean, Jacob L., Line, Michael R., Panwar, Vatsal, Jacobs, Bob, Shivkumar, Hinna, Sikora, James, Baeyens, Robin, Oklopcić, Antonija, David, Trevor J., Livingston, John H.
The V1298 Tau system (20-30Myr), is a benchmark young multi-planet system that provides the opportunity to perform comparative exoplanetology between planets orbiting the same star right after their formation. We present the first atmospheric compari
Externí odkaz:
http://arxiv.org/abs/2407.14995
Autor:
Schlawin, Everett, Mukherjee, Sagnick, Ohno, Kazumasa, Bell, Taylor, Beatty, Thomas G., Greene, Thomas P., Line, Michael, Challener, Ryan C., Parmentier, Vivien, Fortney, Jonathan J., Rauscher, Emily, Wiser, Lindsey, Welbanks, Luis, Murphy, Matthew, Edelman, Isaac, Batalha, Natasha, Moran, Sarah E., Mehta, Nishil, Rieke, Marcia
WASP-69 b is a hot, inflated, Saturn-mass planet 0.26 Mjup with a zero-albedo equilibrium temperature of 963 K. Here, we report the JWST 2 to 12 um emission spectrum of the planet consisting of two eclipses observed with NIRCam grism time series and
Externí odkaz:
http://arxiv.org/abs/2406.15543
Autor:
Murphy, Matthew M., Beatty, Thomas G., Schlawin, Everett, Bell, Taylor J., Line, Michael R., Greene, Thomas P., Parmentier, Vivien, Rauscher, Emily, Welbanks, Luis, Fortney, Jonathan J., Rieke, Marcia
Transmission spectroscopy has enabled unprecedented insights into the makeup of exoplanet atmospheres. A transmission spectrum combines contributions from a planet's morning and evening limbs, but these limbs may have different temperatures, composit
Externí odkaz:
http://arxiv.org/abs/2406.09863
Survey strategies for upcoming exoplanet direct imaging missions have considered varying assumptions of prior knowledge. Precursor radial velocity surveys could have detected nearby exo-Earths and provided prior orbit and mass constraints. Alternativ
Externí odkaz:
http://arxiv.org/abs/2406.07749