Zobrazeno 1 - 10
of 574
pro vyhledávání: '"Tremblin P"'
Autor:
Leggett, S. K., Tremblin, Pascal
JWST is opening many avenues for exploration. For cold brown dwarfs and exoplanets, JWST has opened the door to the mid-infrared wavelength region, where such objects emit significant energy. For the first time, astronomers have access to mid-infrare
Externí odkaz:
http://arxiv.org/abs/2411.03549
Autor:
Kühnle, H., Patapis, P., Mollière, P., Tremblin, P., Matthews, E., Glauser, A. M., Whiteford, N., Vasist, M., Absil, O., Barrado, D., Min, M., Lagage, P. -O., Waters, L. B. F. M., Guedel, M., Henning, Th., Vandenbussche, B., Baudoz, P., Decin, L., Pye, J. P., Royer, P., van Dishoeck, E. F., Östlin, G., Ray, T. P., Wright, G.
With a temperature of $\sim 285$ K WISE0855 is the coldest brown dwarf observed so far. Using the James Webb Space Telescope (JWST) we obtained observations that allow us to characterize WISE0855s atmosphere focusing on vertical variation in the wate
Externí odkaz:
http://arxiv.org/abs/2410.10933
Autor:
Luhman, K. L., de Oliveira, C Alves, Baraffe, I., Chabrier, G., Manjavacas, E., Parker, R. J., Tremblin, P.
We have used the multiobject mode of the Near-Infrared Spectrograph (NIRSpec) on board the James Webb Space Telescope (JWST) to obtain low-resolution 1-5um spectra of 22 brown dwarf candidates in the Orion Nebula Cluster, which were selected with arc
Externí odkaz:
http://arxiv.org/abs/2410.10000
Autor:
Tremblin, Pascal, Bourgeois, Rémi, Bulteau, Solène, Kokh, Samuel, Padioleau, Thomas, Delorme, Maxime, Strugarek, Antoine, González, Matthias, Brun, Allan Sacha
We present a new multi-dimensional, robust, and cell-centered finite-volume scheme for the ideal MHD equations. This scheme relies on relaxation and splitting techniques and can be easily used at high order. A fully conservative version is not entrop
Externí odkaz:
http://arxiv.org/abs/2409.14992
Autor:
Godoy, Nicolás, Choquet, Elodie, Serabyn, Eugene, Danielski, Camilla, Stolker, Tomas, Charnay, Benjamin, Hinkley, Sasha, Lagage, Pierre-Olivier, Ressler, Michale E., Tremblin, Pascal, Vigan, Arthur
Context: HR2562B is a planetary-mass companion located 0.56arcsec (19au) from its host star. It is one of a few L/T transitional objects orbiting a young star. This companion provides insight into the evolution of young objects in the L/T transition.
Externí odkaz:
http://arxiv.org/abs/2409.04524
Recent studies have shown that vertical enthalpy transport can explain the inflated radii of highly irradiated gaseous exoplanets. They have also shown that rotation can influence this transport, leading to highly irradiated, rapidly rotating, object
Externí odkaz:
http://arxiv.org/abs/2407.15602
Autor:
Tremblin, P., Chabrier, G.
Publikováno v:
A&A 689, A207 (2024)
Understanding the expansion of the Universe remains a profound challenge in fundamental physics. The complexity of solving General Relativity equations in the presence of intricate, inhomogeneous flows has compelled cosmological models to rely on per
Externí odkaz:
http://arxiv.org/abs/2407.10622
Autor:
Biller, Beth A., Vos, Johanna M., Zhou, Yifan, McCarthy, Allison M., Tan, Xianyu, Crossfield, Ian J. M., Whiteford, Niall, Suarez, Genaro, Faherty, Jacqueline, Manjavacas, Elena, Chen, Xueqing, Liu, Pengyu, Sutlieff, Ben J., Limbach, Mary Anne, Molliere, Paul, Dupuy, Trent J., Oliveros-Gomez, Natalia, Muirhead, Philip S., Henning, Thomas, Mace, Gregory, Crouzet, Nicolas, Karalidi, Theodora, Morley, Caroline V., Tremblin, Pascal, Kataria, Tiffany
We report results from 8 hours of JWST/MIRI LRS spectroscopic monitoring directly followed by 7 hours of JWST/NIRSpec prism spectroscopic monitoring of the benchmark binary brown dwarf WISE 1049AB, the closest, brightest brown dwarfs known. We find w
Externí odkaz:
http://arxiv.org/abs/2407.09194
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:
Hood, Thea, Debras, Florian, Moutou, Claire, Klein, Baptiste, Tremblin, Pascal, Parmentier, Vivien, Carmona, Andres, Meech, Annabella, Vénot, Olivia, Masson, Adrien, Petit, Pascal, Vinatier, Sandrine, Martioli, Eder, Kiefer, Flavien, Turbet, Martin, consortium, the ATMOSPHERIX
Publikováno v:
A&A 687, A119 (2024)
Measuring the abundances of C- and O-bearing species in exoplanet atmospheres enables us to constrain the C/O ratio, that contains indications about the planet formation history. With a wavelength coverage going from 0.95 to 2.5 microns, the high-res
Externí odkaz:
http://arxiv.org/abs/2403.19434