H_2_O + CH_3_OH maser survey of Orion protostars Virtual Observatory Resource

Authors
  1. Kang M.
  2. Lee J.-E.
  3. Choi M.
  4. Choi Y.
  5. Kim K.-T.
  6. Di Francesco J.,Park Y.-S.
  7. Published by
    CDS
Abstract

The results of a maser survey toward 99 protostars in the Orion molecular cloud complex are presented. The target sources are low-mass protostars identified from infrared observations. Single-dish observations were carried out in the water maser line at 22GHz and the methanol class I maser lines at 44, 95, and 133GHz. Most of the detected sources were mapped to determine the source positions. Five water maser sources were detected, and they are excited by HH 1-2 VLA 3, HH 1-2 VLA 1, L1641N MM1/3, NGC 2071 IRS 1/3, and an object in the OMC 3 region. The water masers showed significant variability in intensity and velocity with time scales of 1 month or shorter. Four methanol emission sources were detected, and those in the OMC 2 FIR 3/4 and L1641N MM1/3 regions are probably masers. The methanol emission from the other two sources in the NGC 2071 IRS 1-3 and V380 Ori NE regions are probably thermal. For the water masers, the number of detections per protostar in the survey region is about 2%, which suggests that the water masers of low-mass protostars are rarely detectable. The methanol class I maser of low-mass protostars is an even rarer phenomenon, with a detection rate much smaller than 1%.

Keywords
  1. astrophysical-masers
  2. radio-astronomy
  3. infrared-sources
  4. surveys
Bibliographic source Bibcode
2013ApJS..209...25K
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/209/25
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/209/25
Document Object Identifer DOI
doi:10.26093/cds/vizier.22090025

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/209/25
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/209/25
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/209/25
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/209/25/targets?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/209/25/targets?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/209/25/targets?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/209/25/table6?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/209/25/table6?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/209/25/table6?

History

2015-05-15T13:09:38Z
Resource record created
2015-05-15T13:09:38Z
Created
2017-07-04T07:09:31Z
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