SiO maser survey of nearby red variables Virtual Observatory Resource

Authors
  1. Deguchi S.
  2. Sakamoto T.
  3. Hasegawa T.
  4. Published by
    CDS
Abstract

In order to study the streaming motions of miras in the Solar neighborhood, we newly surveyed 379 red variables in the SiO maser lines at 42.821 and 43.122GHz with the Nobeyama 45m radio telescope. Accurate radial velocities were obtained for 229 (220 new) detected stars. The sample was selected from optical variables found by new automated surveys: the Northern Sky Variability Survey and the All Sky Automated Survey. The new sample consists of "bluer" objects compared with those observed in the previous SiO surveys. The distances to the objects were estimated using the period-luminosity relation, and they are mostly less than 3kpc from the Sun. The longitude-velocity diagram reveals three prominent groups of stars deviant from circular galactic rotation with a flat rotation curve. In addition to the Hercules group of stars, which was studied before, we found two new deviant groups: one toward the Perseus arm and the other toward the Sagittarius arm. These two groups both exhibit anomalous motions toward the galactic center, which seem to be consistent with the noncircular motions of these spiral arms found in recent VLBI proper-motion measurements for maser gas clumps.

Keywords
  1. variable-stars
  2. astrophysical-masers
  3. radio-astronomy
  4. radial-velocity
Bibliographic source Bibcode
2012PASJ...64....4D
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/PASJ/64/4
IVOA Identifier IVOID
ivo://CDS.VizieR/J/PASJ/64/4

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PASJ/64/4
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/PASJ/64/4
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/PASJ/64/4
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/PASJ/64/4/catalog?
https://vizier.iucaa.in/viz-bin/conesearch/J/PASJ/64/4/catalog?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/PASJ/64/4/catalog?

History

2012-05-22T15:30:43Z
Resource record created
2012-05-22T15:30:43Z
Created
2017-06-01T08:52:22Z
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