A Subaru/MMT Study of the Atmospheres of the Planets Orbiting HR 8799

Details A Subaru/MMT Study of the Atmospheres of the Planets Orbiting HR 8799 A Subaru/MMT Study of the Atmospheres of the Planets Orbiting HR 8799

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21741803c&link_type=abstract

American Astronomical Society, AAS Meeting #217, #418.03; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We present new Subaru data and a rereduction of archival MMT data for the HR 8799 planetary system from 1 to 5 microns. We compare photometry from these data to that for field L/T dwarfs and synthetic SEDs for substellar objects with wide range of temperatures, gravities, and cloud prescriptions. Our analysis strongly suggests that HR 8799bcd have atmospheres dissimilar from almost any brown dwarf over a wide wavelength range. Best-fit models yield temperatures of 900-1100K and masses between 7 and 9 Mjupiter, roughly consistent with values derived from cooling models, and suggest that extensive cloud coverage is a likely source of the SED differences between these planets and brown dwarfs with similar temperatures.

Affiliated with

Also associated with

No associations

Rating

A Subaru/MMT Study of the Atmospheres of the Planets Orbiting HR 8799 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 A Subaru/MMT Study of the Atmospheres of the Planets Orbiting HR 8799, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Subaru/MMT Study of the Atmospheres of the Planets Orbiting HR 8799 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1403790