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

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

Jun 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008mnras.387..407p&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 387, Issue 1, pp. 407-414.

Astronomy and Astrophysics

Astronomy

2

Circumstellar Matter, Stars: Early-Type, Infrared: Stars

Scientific paper

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 AV would be of the order of ~21 mag.

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