The Cepheus flare observed with IRAC and MIPS

DOI

We present Spitzer Infrared Array Camera (IRAC; ~2deg^2^) and Multiband Imaging Photometer for Spitzer (MIPS; ~8deg^2^) observations of the Cepheus Flare, which is associated with the Gould Belt, at an approximate distance of ~300pc. Around 6500 sources are detected in all four IRAC bands, of which ~900 have MIPS 24um detections. We identify 133 young stellar object (YSO) candidates using color-magnitude diagram techniques, and a large number of the YSO candidates are associated with the NGC 7023 reflection nebula. Cross-identifications were made with the Guide Star Catalog II and the IRAS Faint Source Catalog, and spectral energy distributions (SEDs) were constructed. SED modeling was conducted to estimate the degree of infrared excess. It was found that a large majority of disks were optically thick accreting disks, suggesting that there has been little disk evolution in these sources. Nearest-neighbor clustering analysis identified four small protostellar groups (L1228, L1228N, L1251A, and L1251B) with 5-15 members each and the larger NGC 7023 association with 32 YSO members. The star-formation efficiency for cores with clusters of protostars and for those without clusters was found to be ~8% and ~1%, respectively. The cores L1155, L1241, and L1247 are confirmed to be starless down to our luminosity limit of L_bol_=0.06L_{sun}_.

Cone search capability for table J/ApJS/185/198/yso (Cepheus YSO candidates properties)

Cone search capability for table J/ApJS/185/198/table1 (Dark cloud association properties)

Identifier
DOI http://doi.org/10.26093/cds/vizier.21850198
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJS/185/198
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/185/198
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/185/198
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJS/185/198
Provenance
Creator Kirk J.M.; Ward-Thompson D.; Di Francesco J.; Bourke T.L.; Evans N.J.,Merin B.; Allen L.E.; Cieza L.A.; Dunham M.M.; Harvey P.; Huard T.,Jorgensen J.K.; Miller J.F.; Noriega-Crespo A.; Peterson D.; Ray T.P.,Rebull L.M.
Publisher CDS
Publication Year 2010
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