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The serendipitous discovery of a stellar ring at mid-infrared wavelengths.

Authors :
Phillips, J. P.
Ramos-Larios, G.
Source :
Monthly Notices of the Royal Astronomical Society. Jun2008, Vol. 387 Issue 1, p407-414. 8p. 1 Diagram, 1 Chart, 3 Graphs.
Publication Year :
2008

Abstract

We present images and photometry of a stellar ring-like structure G052.4−00.0 discovered during visual inspection of the Spitzer GLIMPSE Atlas. Although G052.4−00.0 may correspond to one of a large variety of sources, it is argued that it is most likely to be associated with an early-type supergiant at a distance of ∼8 kpc from the Sun. Where this is the case, then the radius of the ring would be of the order of ≈0.3 pc, comparable to those of similar structures about other supergiant stars, and the extinction would be of the order of ∼21 mag. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00358711
Volume :
387
Issue :
1
Database :
Academic Search Index
Journal :
Monthly Notices of the Royal Astronomical Society
Publication Type :
Academic Journal
Accession number :
32458559
Full Text :
https://doi.org/10.1111/j.1365-2966.2008.13244.x