Radio detections of stellar winds from the Pistol Star and other stars in the galactic center Quintuplet cluster

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Title: Radio detections of stellar winds from the Pistol Star and other stars in the galactic center Quintuplet cluster
Author: Lang, Cornelia; Figer, Donald; Goss, Miller; Morris, Mark
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 α = +0.5 to +0.8, (where S ∝ ν ), 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 α = −0.4±0.2, consistent with a flat or slightly non-thermal spectrum. (Refer to PDF file for exact formulas).
Description: Also archived in: arXiv:astro-ph/9907176 v1 13 Jul 1999
Record URI: http://hdl.handle.net/1850/1998
Date: 1999-11

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