Hubble and Spitzer photometry of NGC 602

DOI

We present the photometric catalogs for the star-forming cluster NGC 602 in the wing of the Small Magellanic Cloud covering a range of wavelengths from optical (HST/ACS F555W, F814W, and SMARTS/ANDICAM V, I) to infrared (Spitzer/IRAC 3.6, 4.5, 5.8, and 8um and MIPS 24um). Combining this with Infrared Survey Facility near-infrared photometry (J, H, Ks), we compare the young main sequence (MS) and pre-main sequence (PMS) populations prominent in the optical with the current young stellar object (YSO) populations revealed by the infrared. We analyze the MS and PMS population with isochrones in color-magnitude diagrams to derive ages and masses. The optical data reveal ~565 PMS candidates, low-mass Stage III YSOs. We characterize ~40 YSOs by fitting their spectral energy distributions to a grid of models (Robitaille et al. 2007ApJS..169..328R) to derive luminosities, masses, and evolutionary phase (Stages I-III). The higher resolution HST images reveal that ~70% of the YSO candidates are either multiples or protoclusters. For YSOs and PMS sources found in common, we find a consistency in the masses derived. We use the YSO mass function to derive a present-day star formation rate of ~0.2-1.0M_{sun}_/yr/kpc^2^, similar to the rate derived from the optical star formation history suggesting a constant star formation rate for this region.

Cone search capability for table J/ApJ/730/78/table2 (Optical photometry table)

Cone search capability for table J/ApJ/730/78/table3 (IRAC photometry table)

Cone search capability for table J/ApJ/730/78/table4 (Fluxes of all 77 fitter sources including those fit in multiple ways)

Identifier
DOI http://doi.org/10.26093/cds/vizier.17300078
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/730/78
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/730/78
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/730/78
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/730/78
Provenance
Creator Carlson L.R.; Sewilo M.; Meixner M.; Romita K.A.; Whitney B.; Hora J.L.,Cignoni M.; Sabbi E.; Nota A.; Sirianni M.; Smith L.J.; Gordon K.,Babler B.; Bracker S.; Gallagher J.S.; Meade M.; Misselt K.; Pasquali A.,Shiao B.
Publisher CDS
Publication Year 2012
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; Observational Astronomy; Physics; Stellar Astronomy