43GHz SiO maser features around VX Sgr

DOI

We report Very Long Baseline Array (VLBA) observations of 43GHz v=1, J=1-0 SiO masers in the circumstellar envelope of the M-type semiregular variable star VX Sgr at three epochs during 1999 April-May. These high-resolution VLBA images reveal a persistent ringlike distribution of SiO masers with a projected radius of ~3 stellar radii. The typical angular size of 0.5mas for individual maser features was estimated from two-point correlation function analysis of maser spots.

Identifier
DOI http://doi.org/10.26093/cds/vizier.16400982
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/640/982
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/640/982
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/640/982
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/640/982
Provenance
Creator Chen X.; Shen Z.-Q.; Imai H.; Kamohara R.
Publisher CDS
Publication Year 2007
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Interstellar medium; Natural Sciences; Observational Astronomy; Physics