Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.7901s&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #79.01; Bulletin of the American Astronomical Society, V
Astronomy and Astrophysics
Astronomy
Scientific paper
Since the discovery of the first brown dwarf, hundreds of such substellar objects have been identified. Although their existence has been confirmed, the determination of many fundamental properties of brown dwarfs is still an ongoing process. Luminosity and mass are two parameters that are difficult to determine without a known distance and age, yet are critical to our fundamental understanding of substellar evolution. We present a study of a small sample of known brown dwarf companions of main sequence stars using the Spitzer Space Telescope. The brown dwarfs in our study range from early to late L with a wide age range and are companions of primary stars having known distances and ages. Using the measured fluxes from 2MASS to mid-infrared wavelengths (1 24 microns) along with the known quantities of the primary stars (age and distance), we will present SEDs and bolometric luminosities that can be compared to theoretical model predictions.
This work is part of the Visiting Graduate Student Fellowship Program at the Spitzer Science Center, California Institute of Technology.
Kirkpatrick James
Lowrance Patrick
Shukla Sonali J.
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