Disk And Envelope Structure In Class 0 Protostars. I. The Resolved Massive Disk In Serpens Firs 1

dc.contributor.utaustinauthorDunham, Michael M.en_US
dc.creatorEnoch, Melissa L.en_US
dc.creatorCorder, Stuartten_US
dc.creatorDunham, Michael M.en_US
dc.creatorDuchene, Gasparden_US
dc.date.accessioned2016-04-28T19:40:54Z
dc.date.available2016-04-28T19:40:54Z
dc.date.issued2009-12en
dc.description.abstractWe present the first results of a program to characterize the disk and envelope structure of typical Class 0 protostars in nearby low-mass star-forming regions. We use Spitzer Infrared Spectrograph (IRS) mid-infrared spectra, high-resolution Combined Array for Research in Millimeter-wave Astronomy (CARMA) 230 GHz continuum imaging, and two-dimensional radiative transfer models to constrain the envelope structure, as well as the size and mass of the circumprotostellar disk in Serpens FIRS 1. The primary envelope parameters (centrifugal radius, outer radius, outflow opening angle, and inclination) are well constrained by the spectral energy distribution (SED), including Spitzer IRAC and MIPS photometry, IRS spectra, and 1.1 mm Bolocam photometry. These together with the excellent uv-coverage (4.5-500 k lambda) of multiple antenna configurations with CARMA allow for a robust separation of the envelope and a resolved disk. The SED of Serpens FIRS 1 is best fit by an envelope with the density profile of a rotating, collapsing spheroid with an inner (centrifugal) radius of approximately 600 AU, and the millimeter data by a large resolved disk with M(disk) similar to 1.0M(circle dot) and R(disk) similar to 300 AU. These results suggest that large, massive disks can be present early in the main accretion phase. Results for the larger, unbiased sample of Class 0 sources in the Perseus, Serpens, and Ophiuchus molecular clouds are needed to determine if relatively massive disks are typical in the Class 0 stage.en_US
dc.description.departmentAstronomyen_US
dc.description.sponsorshipNASA 1224608, 1230782en_US
dc.description.sponsorshipNSF AST-9980846, AST-0206158en_US
dc.identifierdoi:10.15781/T2ZC0J
dc.identifier.Filename2009_12_diskandenvelope.pdfen_US
dc.identifier.citationEnoch, Melissa L., Stuartt Corder, Michael M. Dunham, and Gaspard Duch�ne. "Disk and Envelope Structure in Class 0 Protostars. I. The Resolved Massive Disk in Serpens Firs 1." The Astrophysical Journal, Vol. 707, No. 1 (Dec., 2009): 103.en_US
dc.identifier.doi10.1088/0004-637x/707/1/103en_US
dc.identifier.issn0004-637Xen_US
dc.identifier.urihttp://hdl.handle.net/2152/35090
dc.language.isoEnglishen_US
dc.relation.ispartofen_US
dc.relation.ispartofserialAstrophysical Journalen_US
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en_US
dc.rights.restrictionOpenen_US
dc.subjectinfrared: ismen_US
dc.subjectism: individual (serpens)en_US
dc.subjectstars: formationen_US
dc.subjectsubmillimeteren_US
dc.subjectyoung stellar objectsen_US
dc.subjectspectral energy-distributionsen_US
dc.subjectspitzer-space-telescopeen_US
dc.subjectcurrent star-formationen_US
dc.subjectmolecular clouden_US
dc.subjectunbiased submillimeteren_US
dc.subjectmidinfrared surveysen_US
dc.subjectc2d surveyen_US
dc.subjectcoresen_US
dc.subjectperseusen_US
dc.subjectastronomy & astrophysicsen_US
dc.titleDisk And Envelope Structure In Class 0 Protostars. I. The Resolved Massive Disk In Serpens Firs 1en_US
dc.typeArticleen_US
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