Star-forming potential in the Perseus complex

DOI

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.

Cone search capability for table J/AJ/153/214/table6 (Class 0 in Each Clump)

Cone search capability for table J/AJ/153/214/table7 (Class I in Each Clump)

Cone search capability for table J/AJ/153/214/table9 (Class II in Each Clump)

Cone search capability for table J/AJ/153/214/table10 (Class III in Each Clump)

Cone search capability for table J/AJ/153/214/table4 (Starless Cores in Each Clump)

Cone search capability for table J/AJ/153/214/table5 (Protostellar Cores in Each Clump)

Cone search capability for table J/AJ/153/214/table8 (Class Flat in Each Clump)

Identifier
DOI http://doi.org/10.26093/cds/vizier.51530214
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/AJ/153/214
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/153/214
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/153/214
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/AJ/153/214
Provenance
Creator Mercimek S.; Myers P.C.; Lee K.I.; Sadavoy S.I.
Publisher CDS
Publication Year 2018
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Interstellar medium; Natural Sciences; Physics; Stellar Astronomy