SpitzerIRS Spectra and Envelope Models of Class I Protostars in Taurus

Citations Over TimeTop 10% of 2008 papers

Abstract

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.

Related Papers

• → Star formation in a turbulent framework: from giant molecular clouds to protostars(2016)22 cited
• → On Rapid Disk Accretion and Initial Conditions in Protostellar Evolution(2011)12 cited
• → Recent Developments in Simulations of Low-mass Star Formation(2010)1 cited
• → Design and construction of an echelle spectrograph: HERCULES(2002)