The Cepheus flare observed with IRAC and MIPS Virtual Observatory Resource

Authors
  1. Kirk J.M.
  2. Ward-Thompson D.
  3. Di Francesco J.
  4. Bourke T.L.
  5. Evans N.J.,Merin B.
  6. Allen L.E.
  7. Cieza L.A.
  8. Dunham M.M.
  9. Harvey P.
  10. Huard T.,Jorgensen J.K.
  11. Miller J.F.
  12. Noriega-Crespo A.
  13. Peterson D.
  14. Ray T.P.,Rebull L.M.
  15. Published by
    CDS
Abstract

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}_.

Keywords
  1. infrared-photometry
  2. visible-astronomy
  3. Wide-band photometry
  4. young-stellar-objects
  5. diffuse-molecular-clouds
  6. astronomical-object-identification
Bibliographic source Bibcode
2009ApJS..185..198K
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/185/198
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/185/198
Document Object Identifer DOI
doi:10.26093/cds/vizier.21850198

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/185/198
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/185/198
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/185/198
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/185/198/yso?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/185/198/yso?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/185/198/yso?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/185/198/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/185/198/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/185/198/table1?

History

2010-05-04T13:00:10Z
Resource record created
2010-05-04T13:00:10Z
Created
2017-07-04T07:08:26Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr