Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Phillips, Mark W"'
Autor:
Zhang, Zhoujian, Mukherjee, Sagnick, Liu, Michael C., Fortney, Jonathan J., Mader, Emily, Best, William M. J., Dupuy, Trent J., Leggett, Sandy K., Karalidi, Theodora, Line, Michael R., Marley, Mark S., Morley, Caroline V., Phillips, Mark W., Siverd, Robert J., Zalesky, Joseph A.
Located 10.888 pc from Earth, COCONUTS-2b is a planetary-mass companion to a young (150--800 Myr) M3 star, with a wide orbital separation (6471 au) and a low companion-to-host mass ratio ($0.021\pm0.005$). We have studied the atmospheric properties o
Externí odkaz:
http://arxiv.org/abs/2410.10939
Measurements of the C/O ratio in brown dwarfs are lacking, in part due to past models adopting solar C/O only. We have expanded the ATMO 2020 atmosphere model grid to include non-solar metallicities and C/O ratios in the T dwarf regime. We change the
Externí odkaz:
http://arxiv.org/abs/2312.02001
Autor:
Whiteford, Niall, Glasse, Alistair, Chubb, Katy L., Kitzmann, Daniel, Ray, Shrishmoy, Phillips, Mark W., Biller, Beth A., Palmer, Paul I., Rice, Ken, Waldmann, Ingo P., Changeat, Quentin, Skaf, Nour, Wang, Jason, Edwards, Billy, Al-Refaie, Ahmed
Retrieval methods are a powerful analysis technique for modelling exoplanetary atmospheres by estimating the bulk physical and chemical properties that combine in a forward model to best-fit an observed spectrum, and they are increasingly being appli
Externí odkaz:
http://arxiv.org/abs/2302.07939
Autor:
Dupuy, Trent J., Liu, Michael C., Evans, Elise L., Best, William M. J., Pearce, Logan A., Sanghi, Aniket, Phillips, Mark W., Gagliuffi, Daniella C. Bardalez
VHS J1256$-$1257 AB is an ultracool dwarf binary that hosts a wide-separation planetary-mass companion that is a key target of the {\sl JWST} Exoplanet Early Release Science (ERS) program. Using Keck adaptive optics imaging and aperture masking inter
Externí odkaz:
http://arxiv.org/abs/2208.08448
Autor:
Brandt, G. Mirek, Dupuy, Trent J., Li, Yiting, Chen, Minghan, Brandt, Timothy D., Wong, Tin Long Sunny, Currie, Thayne, Bowler, Brendan P., Liu, Michael C., Best, William M. J., Phillips, Mark W.
We present comprehensive orbital analyses and dynamical masses for the substellar companions Gl~229~B, Gl~758~B, HD~13724~B, HD~19467~B, HD~33632~Ab, and HD~72946~B. Our dynamical fits incorporate radial velocities, relative astrometry, and most impo
Externí odkaz:
http://arxiv.org/abs/2109.07525
Autor:
Feng, Fabo, Butler, R. Paul, Jones, Hugh R. A., Phillips, Mark W., Vogt, Steven S., Oppenheimer, Rebecca, Holden, Bradford, Burt, Jennifer, Boss, Alan P.
To fully constrain the orbits of low mass circumstellar companions, we conduct combined analyses of the radial velocity data as well as the Gaia and Hipparcos astrometric data for eight nearby systems. Our study shows that companion-induced position
Externí odkaz:
http://arxiv.org/abs/2107.14056
Autor:
Leggett, S. K., Tremblin, Pascal, Phillips, Mark W., Dupuy, Trent J., Marley, Mark, Morley, Caroline, Schneider, Adam, Caselden, Dan, Guillaume, Colin, Logsdon, Sarah E.
Cold, low-mass, field brown dwarfs are important for constraining the terminus of the stellar mass function, and also for optimizing atmospheric studies of exoplanets. In 2020 new model grids for such objects were made available: Sonora-Bobcat and AT
Externí odkaz:
http://arxiv.org/abs/2107.00696
Autor:
Houllé, Mathis, Vigan, Arthur, Carlotti, Alexis, Choquet, Élodie, Cantalloube, Faustine, Phillips, Mark W., Sauvage, Jean-François, Schwartz, Noah, Otten, Gilles P. P. L., Baraffe, Isabelle, Emsenhuber, Alexandre, Mordasini, Christoph
Publikováno v:
A&A 652, A67 (2021)
Combining high-contrast imaging with medium-resolution spectroscopy has been shown to significantly boost the direct detection of exoplanets. HARMONI, one of the first-light instruments to be mounted on ESO's ELT, will be equipped with a single-conju
Externí odkaz:
http://arxiv.org/abs/2104.11251
Autor:
Carter, Aarynn L., Hinkley, Sasha, Bonavita, Mariangela, Phillips, Mark W., Girard, Julien H., Perrin, Marshall, Pueyo, Laurent, Vigan, Arthur, Gagné, Jonathan, Skemer, Andrew J. I.
The James Webb Space Telescope (JWST), currently scheduled to launch in 2021, will dramatically advance our understanding of exoplanetary systems with its ability to directly image and characterise planetary-mass companions at wide separations throug
Externí odkaz:
http://arxiv.org/abs/2011.07075
Autor:
Chubb, Katy L., Rocchetto, Marco, Yurchenko, Sergei N., Min, Michiel, Waldmann, Ingo, Barstow, Joanna K., Mollière, Paul, Al-Refaie, Ahmed F., Phillips, Mark W., Tennyson, Jonathan
Publikováno v:
A&A 646, A21 (2021)
A publicly available database of opacities for molecules of astrophysical interest, ExoMolOP, has been compiled for over 80 species, based on the latest line list data from the ExoMol, HITEMP and MoLLIST databases. These data are generally suitable f
Externí odkaz:
http://arxiv.org/abs/2009.00687