Star-forming potential in the Perseus complex Virtual Observatory Resource

Authors
  1. Mercimek S.
  2. Myers P.C.
  3. Lee K.I.
  4. Sadavoy S.I.
  5. Published by
    CDS
Abstract

We present the results of our investigation of the star-forming potential in the Perseus star-forming complex. We build on previous starless core, protostellar core, and young stellar object (YSO) catalogs from Spitzer (3.6-70 {mu}m), Herschel (70-500 {mu}m), and SCUBA (850 {mu}m) observations in the literature. We place the cores and YSOs within seven star-forming clumps based on column densities greater than 5x10^21^/cm^2^. We calculate the mean density and free-fall time for 69 starless cores as ~5.55x10^-19^ g/cm^3^ and ~0.1 Myr, respectively, and we estimate the star formation rate for the near future as ~150 M_{sun}_/Myr. According to Bonnor-Ebert stability analysis, we find that majority of starless cores in Perseus are unstable. Broadly, these cores can collapse to form the next generation of stars. We found a relation between starless cores and YSOs, where the numbers of young protostars (Class 0 + Class I) are similar to the numbers of starless cores. This similarity, which shows a one-to-one relation, suggests that these starless cores may form the next generation of stars with approximately the same formation rate as the current generation, as identified by the Class 0 and Class I protostars. It follows that if such a relation between starless cores and any YSO stage exists, the SFR values of these two populations must be nearly constant. In brief, we propose that this one-to-one relation is an important factor in better understanding the star formation process within a cloud.

Keywords
  1. molecular-clouds
  2. young-stellar-objects
  3. stellar-masses
  4. stellar-radii
Bibliographic source Bibcode
2017AJ....153..214M
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/153/214
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/153/214
Document Object Identifer DOI
doi:10.26093/cds/vizier.51530214

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History

2018-05-30T07:46:08Z
Resource record created
2018-05-30T07:46:08Z
Created
2018-07-20T08:37:11Z
Updated

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