Zobrazeno 1 - 10
of 459
pro vyhledávání: '"Lee, P. K. H."'
Autor:
Lee, Elspeth K. H., Ohno, Kazumasa
Understanding of cloud microphysics and the evolution of cloud structures in sub-stellar atmospheres remains a key challenge in the JWST era. The abundance of new JWST data necessitates models that are suitable for coupling with large-scale simulatio
Externí odkaz:
http://arxiv.org/abs/2411.10305
Effects of the internal temperature on vertical mixing and on cloud structures in Ultra Hot Jupiters
Autor:
Noti, Pascal A., Lee, Elspeth K. H.
Publikováno v:
A&A 691, A139 (2024)
The vertical mixing in hot Jupiter atmospheres plays a critical role in the formation and spacial distribution of cloud particles in their atmospheres. This affects the observed spectra of a planet through cloud opacity, which can be influenced by th
Externí odkaz:
http://arxiv.org/abs/2409.17101
Autor:
Lee, Elspeth K. H., Tsai, Shang-Min, Moses, Julianne I., Plane, John M. C., Visscher, Channon, Klippenstein, Stephen J.
Due to the detection of phosphine PH3 in the Solar System gas giants Jupiter and Saturn, PH3 has long been suggested to be detectable in exosolar substellar atmospheres too. However, to date, a direct detection of phosphine has proven to be elusive i
Externí odkaz:
http://arxiv.org/abs/2409.06802
Autor:
Powell, Diana, Feinstein, Adina D., Lee, Elspeth K. H., Zhang, Michael, Tsai, Shang-Min, Taylor, Jake, Kirk, James, Bell, Taylor, Barstow, Joanna K., Gao, Peter, Bean, Jacob L., Blecic, Jasmina, Chubb, Katy L., Crossfield, Ian J. M., Jordan, Sean, Kitzmann, Daniel, Moran, Sarah E., Morello, Giuseppe, Moses, Julianne I., Welbanks, Luis, Yang, Jeehyun, Zhang, Xi, Ahrer, Eva-Maria, Bello-Arufe, Aaron, Brande, Jonathan, Casewell, S. L., Crouzet, Nicolas, Cubillos, Patricio E., Demory, Brice-Olivier, Dyrek, Achrène, Flagg, Laura, Hu, Renyu, Inglis, Julie, Jones, Kathryn D., Kreidberg, Laura, López-Morales, Mercedes, Lagage, Pierre-Olivier, Valdés, Erik A. Meier, Miguel, Yamila, Parmentier, Vivien, Piette, Anjali A. A., Rackham, Benjamin V., Radica, Michael, Redfield, Seth, Stevenson, Kevin B., Wakeford, Hannah R., Aggarwal, Keshav, Alam, Munazza K., Batalha, Natalie M., Batalha, Natasha E., Benneke, Björn, Berta-Thompson, Zach K., Brady, Ryan P., Caceres, Claudio, Carter, Aarynn L., Désert, Jean-Michel, Harrington, Joseph, Iro, Nicolas, Line, Michael R., Lothringer, Joshua D., MacDonald, Ryan J., Mancini, Luigi, Molaverdikhani, Karan, Mukherjee, Sagnick, Nixon, Matthew C., Oza, Apurva V., Palle, Enric, Rustamkulov, Zafar, Sing, David K., Steinrueck, Maria E., Venot, Olivia, Wheatley, Peter J., Yurchenko, Sergei N.
Publikováno v:
Nature 626, 979-983 (2024)
The recent inference of sulphur dioxide (SO$_2$) in the atmosphere of the hot ($\sim$1100 K), Saturn-mass exoplanet WASP-39b from near-infrared JWST observations suggests that photochemistry is a key process in high temperature exoplanet atmospheres.
Externí odkaz:
http://arxiv.org/abs/2407.07965
Autor:
Challener, Ryan C., Rustamkulov, Zafar, Lee, Elspeth K. H., Lewis, Nikole, Sing, David K., Birkmann, Stephan M., Crouzet, Nicolas, Espinoza, Néstor, Manjavacas, Elena, Oliveros-Gomez, Natalia, Valenti, Jeff A., Yang, Jingxuan
We present two-dimensional near-infrared temperature maps of the canonical hot Jupiter WASP-43b using a phase-curve observation with JWST NIRSpec/G395H. From the white-light planetary transit, we improve constraints on the planet's orbital parameters
Externí odkaz:
http://arxiv.org/abs/2406.10207
Autor:
Wardenier, Joost P., Parmentier, Vivien, Line, Michael R., Mansfield, Megan Weiner, Tan, Xianyu, Tsai, Shang-Min, Bean, Jacob L., Birkby, Jayne L., Brogi, Matteo, Désert, Jean-Michel, Gandhi, Siddharth, Lee, Elspeth K. H., Levens, Colette I., Pino, Lorenzo, Smith, Peter C. B.
Ultra-hot Jupiters are among the best targets for atmospheric characterization at high spectral resolution. Resolving their transmission spectra as a function of orbital phase offers a unique window into the 3D nature of these objects. In this work,
Externí odkaz:
http://arxiv.org/abs/2406.09641
Autor:
Sing, David K., Rustamkulov, Zafar, Thorngren, Daniel P., Barstow, Joanna K., Tremblin, Pascal, de Oliveira, Catarina Alves, Beck, Tracy L., Birkmann, Stephan M., Challener, Ryan C., Crouzet, Nicolas, Espinoza, Néstor, Ferruit, Pierre, Giardino, Giovanna, Gressier, Amélie, Lee, Elspeth K. H., Lewis, Nikole K., Maiolino, Roberto, Manjavacas, Elena, Rauscher, Bernard J., Sirianni, Marco, Valenti, Jeff A.
Observations of transiting gas giant exoplanets have revealed a pervasive depletion of methane, which has only recently been identified atmospherically. The depletion is thought to be maintained by disequilibrium processes such as photochemistry or m
Externí odkaz:
http://arxiv.org/abs/2405.11027
Autor:
Prinoth, B., Hoeijmakers, H. J., Morris, B. M., Lam, M., Kitzmann, D., Sedaghati, E., Seidel, J. V., Lee, E. K. H., Thorsbro, B., Borsato, N. W., Damasceno, Y. C., Pelletier, S., Seifahrt, A.
Exoplanets in the ultra-hot Jupiter regime provide an excellent laboratory for testing the impact of stellar irradiation on the dynamics and chemical composition of gas giant atmospheres. In this study, we observed two transits of the ultra-hot Jupit
Externí odkaz:
http://arxiv.org/abs/2403.08863
Autor:
Lee, Elspeth K. H.
The calculation of internal atmospheric (longwave) fluxes is a key component of any model of exoplanet atmospheres that requires radiative-transfer (RT) calculations. For atmospheres containing a strong scattering component such as cloud particles, m
Externí odkaz:
http://arxiv.org/abs/2402.17697
Autor:
Villanueva, Geronimo L., Fauchez, Thomas J., Kofman, Vincent, Alei, Eleonora, Lee, Elspeth K. H., Janin, Estelle, Himes, Michael D., Leconte, Jeremy, Leung, Michaela, Faggi, Sara, Mak, Mei Ting, Sergeev, Denis E., Kozakis, Thea, Manners, James, Mayne, Nathan, Schwieterman, Edward W., Howe, Alex R., Batalha, Natasha
Radiative transfer (RT) models are critical in the interpretation of exoplanetary spectra, in simulating exoplanet climates and when designing the specifications of future flagship observatories. However, most models differ in methodologies and input
Externí odkaz:
http://arxiv.org/abs/2402.04329