High Resolution Radio Observations of the Nebulae of Luminous Blue Variable Stars

Details High Resolution Radio Observations of the Nebulae of Luminous Blue Variable Stars High Resolution Radio Observations of the Nebulae of Luminous Blue Variable Stars

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20910105m&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #101.05; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

Luminous Blue Variable (LBV) stars represent an important, but short-lived, evolutionary phase of massive stars marked by extreme mass-loss events. The ejecta from these events appear as associated LBV nebulae (LBVN). Radio observations of the LBVN can provide insight into previous and current mass loss rates of the star, as well as the details of expansion into the surrounding ISM. Here, we report new multi-frequency, multi-configuration Very Large Array (VLA) observations of seven Galactic LBVN. We present preliminary 8.5 and 22.5 GHz results on LBVN sources AFGL2298, NaSt1, G79.29+0.46, G26.47+0.02, the Galactic Center Pistol Star, Galactic Center FMM362 and LBV 1806-20. These high-resolution observations reveal structure in the LBVN.

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