MMB Survey ex-OH catalogue Virtual Observatory Resource

Authors
  1. Avison A.
  2. Quinn L.J.
  3. Fuller G.A.
  4. Caswell J.L.
  5. Green J.A.
  6. Breen S.L.,Ellingsen S.P.
  7. Gray M.D.
  8. Pestalozzi M.
  9. Thompson M.A.
  10. Voronkov M.A.
  11. Published by
    CDS
Abstract

We present the results of the first complete unbiased survey of the Galactic plane for 6035-MHz excited-state hydroxyl (ex-OH) masers undertaken as part of the methanol multibeam (MMB) survey. These observations cover the Galactic longitude ranges 186deg<l<60deg including the Galactic Centre. We report the detection of 127 ex-OH masers within the survey region, 47 being new sources. The positions of new detections were determined from interferometric observations with the Australia Telescope Compact Array. We discuss the association of 6035-MHz masers in our survey with the 6668-MHz masers from the MMB Survey, finding 37 likely CH_3_OH-ex-OH maser pairs with physical separations of <=0.03pc and 55 pairings separated by <=0.1pc. Using these we calculate for the first time an ex-OH maser lifetime of between 3.3x10^3^ and 8.3x10^3^yr. We also discuss the variability of the 6035-MHz masers and detection rates of counterpart 6030-MHz ex-OH masers (28 per cent of our sample having detection at both frequencies).

Keywords
  1. Galaxy planes
  2. Milky Way Galaxy
  3. Astrophysical masers
  4. Radio astronomy
  5. Radio sources
Bibliographic source Bibcode
2016MNRAS.461..136A
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/461/136
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/461/136
Document Object Identifer DOI

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/461/136
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/461/136
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/461/136
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/MNRAS/461/136/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/461/136/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/461/136/table1?

History

2023-11-16T09:05:48Z
Resource record created
2023-11-16T08:06:16Z
Updated
2023-11-16T09:05:48Z
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