Near-infrared integral field spectroscopy of young late-M and early-L dwarfs close to the deuterium-burning boundary

Details Near-infrared integral field spectroscopy of young late-M and early-L dwarfs close to the deuterium-burning boundary Near-infrared integral field spectroscopy of young late-M and early-L dwarfs close to the deuterium-burning boundary

Nov 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009sf2a.conf..309b&link_type=abstract

SF2A-2009: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, held 29 June - 4 July 2009 in

Astronomy and Astrophysics

Astrophysics

Scientific paper

We report the first results of a uniform high-quality spectral characterization of 8 young late-M and early-L dwarfs in the near-infrared (1.1-2.45 μm) with the integral field medium-resolution (R=1500-2000) spectrograph SINFONI. Our targets are companions to stars, or free-floating objects members of young (< 100 Myrs) associations. The sample noticeably includes the companion to AB Pic, which is known to lie at the deuterium-burning boundary (13.6 M_{Jup}). A comparison of the spectrum of AB Pic b with empirical libraries of young late dwarfs spectral standards and to synthetic atmosphere spectra yielded the spectral type, the surface gravities (log(g)) and the effective temperature (T_{eff}) of the source. By combining T_{eff}, log(g), the observed photometry, the surface fluxes from atmosphere models and the known distance of AB Pic A, we derived new masses, luminosities and radii estimates that were carefully compared to evolutionary models predictions.

Affiliated with

Also associated with

No associations

Rating

Near-infrared integral field spectroscopy of young late-M and early-L dwarfs close to the deuterium-burning boundary does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Near-infrared integral field spectroscopy of young late-M and early-L dwarfs close to the deuterium-burning boundary, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Near-infrared integral field spectroscopy of young late-M and early-L dwarfs close to the deuterium-burning boundary will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1152234