CO obs. of molecular clouds in the 3rd Gal. quadrant Virtual Observatory Resource

Authors
  1. Dong Y.
  2. Sun Y.
  3. Xu Ye
  4. Lin Z.
  5. Bian S.
  6. Hao C.
  7. Liu D.
  8. Li Y.
  9. Yang Ji,Su Y.
  10. Zhou X.
  11. Zhang S.
  12. Yan Q.-Z.
  13. Chen Z.
  14. Published by
    CDS
Abstract

We present the results of an unbiased 12CO/13CO/C18O (J=1-0) survey in a portion of the third Galactic quadrant (TGQ): 219.75{deg}<=l<=229.75{deg} and -5.25{deg}<=b<=5.25{deg}. The high-resolution and high-sensitivity data sets help to unravel the distributions and physical properties of the molecular clouds (MCs) in the mapped area. In the LSR velocity range from ~-1 to ~85km/s, the molecular material successfully traces the Local, Perseus, and Outer arms. In the TGQ, the Outer arm appears to be more prominent than that in the second Galactic quadrant (SGQ), but the Perseus arm is not as conspicuous as that in the SGQ. A total of 1502 ^12^CO, 570 ^13^CO, and 53 C^18^O molecular structures are identified, spanning over ~2 and ~6 orders of magnitude in size and mass, respectively. Tight mass-radius correlations and virial parameter-mass anticorrelations are observable. Yet, it seems that no clear correlations between velocity dispersion and effective radius can be found over the full dynamic range. The vertical distribution of the MCs renders evident pictures of the Galactic warp and flare.

Keywords
  1. molecular-clouds
  2. co-line-emission
  3. milky-way-galaxy
  4. millimeter-astronomy
  5. submillimeter-astronomy
Bibliographic source Bibcode
2023ApJS..268....1D
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/268/1
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/268/1

Access

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http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/268/1
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/268/1
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/268/1
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IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/268/1/table7?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/268/1/table7?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/268/1/table7?

History

2023-12-22T15:08:03Z
Resource record created
2023-12-22T14:13:12Z
Updated
2023-12-22T15:08:03Z
Created

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