An Inner Gaseous Disk around the Herbig Be Star MWC 147

Details An Inner Gaseous Disk around the Herbig Be Star MWC 147 An Inner Gaseous Disk around the Herbig Be Star MWC 147

2010-10-07

arxiv.org/abs/1010.1414v1

Astronomy and Astrophysics

Astrophysics

Earth and Planetary Astrophysics

accepted for ApJ Letters (Oct. 2010)

Scientific paper

We present high-spectral-resolution, optical spectra of the Herbig Be star MWC 147, in which we spectrally resolve several emission lines, including the [O I] lines at 6300 and 6363\deg. Their highly symmetric, double-peaked line profiles indicate that the emission originates in a rotating circumstellar disk. We deconvolve the Doppler-broadened [O I] emission lines to obtain a measure of emission as a function of distance from the central star. The resulting radial surface brightness profiles are in agreement with a disk structure consisting of a flat, inner, gaseous disk and a flared, outer, dust disk. The transition between these components at 2 to 3 AU corresponds to the estimated dust sublimation radius. The width of the double-peaked Mg II line at 4481\deg suggests that the inner disk extends to at least 0.10 AU, close to the corotation radius.

Affiliated with

Also associated with

No associations

Rating

An Inner Gaseous Disk around the Herbig Be Star MWC 147 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 An Inner Gaseous Disk around the Herbig Be Star MWC 147, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An Inner Gaseous Disk around the Herbig Be Star MWC 147 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-509603