Radio Detections of Stellar Winds from the Pistol Star and Other Stars in the Galactic Center Quintuplet Cluster

Preprint

13 July 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/9907176

Abstract

VLA images of the Sickle and Pistol H II regions near the Galactic center at 3.6 and 6 cm reveal six point sources in the region where the dense Quintuplet stellar cluster is located. The spectral indices of five of these sources between 6 cm and 3.6 cm have values of alpha = +0.5 to +0.8, consistent with the interpretation that the radio sources correspond to ionized stellar winds of the massive stars in this cluster. The radio source associated with the Pistol Star shows alpha = -0.4 +/- 0.2, consistent with a flat or slightly non-thermal spectrum.

Keywords

STARS IN THIS CLUSTER
RADIO DETECTIONS
GALACTIC CENTER
STELLAR WINDS
PISTOL STAR
QUINTUPLET

All Related Versions

Version 1, 1999-07-13, ArXiv
Published version: The Astronomical Journal, 118 (5), 2327.

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