Disk and Envelope Structure in Class 0 Protostars. II. High-resolution Millimeter Mapping of the Serpens Sample - INSU - Institut national des sciences de l'Univers Accéder directement au contenu
Article Dans Une Revue The Astrophysical Journal Supplement Année : 2011

Disk and Envelope Structure in Class 0 Protostars. II. High-resolution Millimeter Mapping of the Serpens Sample

Melissa L. Enoch
  • Fonction : Auteur
Stuartt Corder
  • Fonction : Auteur
Douglas C. Bock
  • Fonction : Auteur
Alberto D. Bolatto
  • Fonction : Auteur
Thomas L. Culverhouse
  • Fonction : Auteur
Woojin Kwon
  • Fonction : Auteur
James W. Lamb
  • Fonction : Auteur
Erik M. Leitch
  • Fonction : Auteur
Daniel P. Marrone
  • Fonction : Auteur
Stephen J. Muchovej
  • Fonction : Auteur
Laura M. Pérez
  • Fonction : Auteur
Stephen L. Scott
  • Fonction : Auteur
Peter J. Teuben
  • Fonction : Auteur
Melvyn C. H. Wright
  • Fonction : Auteur
B. Ashley Zauderer
  • Fonction : Auteur

Résumé

We present high-resolution CARMA 230 GHz continuum imaging of nine deeply embedded protostars in the Serpens Molecular Cloud, including six of the nine known Class 0 protostars in Serpens. This work is part of a program to characterize disk and envelope properties for a complete sample of Class 0 protostars in nearby low-mass star-forming regions. Here, we present CARMA maps and visibility amplitudes as a function of uv-distance for the Serpens sample. Observations are made in the B, C, D, and E antenna configurations, with B configuration observations utilizing the CARMA Paired Antenna Calibration System. Combining data from multiple configurations provides excellent uv-coverage (4-500 kλ), allowing us to trace spatial scales from 102 to 104 AU. We find evidence for compact disk components in all of the observed Class 0 protostars, suggesting that disks form at very early times (t < 0.2 Myr) in Serpens. We make a first estimate of disk masses using the flux at 50 kλ, where the contribution from the envelope should be negligible, assuming an unresolved disk. The resulting disk masses range from 0.04 M sun to 1.7 M sun, with a mean of approximately 0.2 M sun. Our high-resolution maps are also sensitive to binary or multiple sources with separations >~ 250 AU, but significant evidence of multiplicity on scales <2000 AU is seen in only one source.

Dates et versions

insu-03623464 , version 1 (29-03-2022)

Identifiants

Citer

Melissa L. Enoch, Stuartt Corder, Gaspard Duchêne, Douglas C. Bock, Alberto D. Bolatto, et al.. Disk and Envelope Structure in Class 0 Protostars. II. High-resolution Millimeter Mapping of the Serpens Sample. The Astrophysical Journal Supplement, 2011, 195, ⟨10.1088/0067-0049/195/2/21⟩. ⟨insu-03623464⟩
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