Spitzer IRS Spectra and Envelope Models of Class I Protostars in Taurus

Details Spitzer IRS Spectra and Envelope Models of Class I Protostars in Taurus Spitzer IRS Spectra and Envelope Models of Class I Protostars in Taurus

2007-11-26

arxiv.org/abs/0711.4038v1

Astrophys.J.Suppl.176:184-215,2008

Astronomy and Astrophysics

Astrophysics

46 pages, 29 figures; accepted for publication in ApJS

Scientific paper

10.1086/527301

We present Spitzer Infrared Spectrograph spectra of 28 Class I protostars in the Taurus star-forming region. The 5 to 36 micron spectra reveal excess emission from the inner regions of the envelope and accretion disk surrounding these predecessors of low-mass stars, as well as absorption features due to silicates and ices. Together with shorter- and longer-wavelength data from the literature, we construct spectral energy distributions and fit envelope models to 22 protostars of our sample, most of which are well-constrained due to the availability of the IRS spectra. We infer that the envelopes of the Class I objects in our sample cover a wide range in parameter space, particularly in density and centrifugal radius, implying different initial conditions for the collapse of protostellar cores.

Affiliated with

Also associated with

No associations

Rating

Spitzer IRS Spectra and Envelope Models of Class I Protostars in Taurus 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 Spitzer IRS Spectra and Envelope Models of Class I Protostars in Taurus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spitzer IRS Spectra and Envelope Models of Class I Protostars in Taurus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-170914