BASS-Ultracool : A Survey for Isolated Analogs of Methane Exoplanets

Autor(en)

Jonathan Gagne, Jacqueline K. Faherty, Lison Malo, Joseph C. Filippazzo, Adam J. Burgasser, Christine Nicholls

Abstrakt

I will present BASS-Ultracool, a new survey to identify isolated cold, late L and T-type members of young moving groups. These objects have masses below 10 MJup and physical properties similar to those of exoplanets identified with the direct-imaging method. The discovery of such isolated planetary-mass objects will allow us to characterize their atmospheres with unprecedented signal-to-noise and spectroscopic resolution due to the absence of a host star. They will serve as benchmarks to understand cold exoplanets such as the recently discovered 51 Eri b.I will also present how the prototype version of the BASS-Ultracool survey has already identified the first isolated T-type member of a nearby moving group SDSS J1110+0116, which is a young 10-12 MJup T5.5 member of the ~150 Myr-old AB Doradus moving group. This object is an isolated and slightly cooler version of the previously identified T3.5 AB Doradus member GU Psc b.

Organisation(en)

Institut für Astrophysik

Externe Organisation(en)

Carnegie Institution for Science, Canada-France-Hawaii Telescope, American Museum of Natural History, University of California, San Diego

Journal

American Astronomical Society, ESS meeting

Band

47

Publikationsdatum

12-2015

ÖFOS 2012

103003 Astronomie, 103004 Astrophysik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/bassultracool--a-survey-for-isolated-analogs-of-methane-exoplanets(ffea4e12-d17e-437d-8f0a-3a0f5e48131d).html