The Very Slow Wind From the Pulsating Semiregular Red Giant L2 Pup

Preprint

10 December 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/0112230

Abstract

We have obtained 11.7 and 17.9 micron images at the Keck I telescope of the circumstellar dust emission from L2 Pup, one of the nearest (D = 61 pc) mass-losing, pulsating, red giants that has a substantial infrared excess. We propose that the wind may be driven by the stellar pulsations with radiation pressure on dust being relatively unimportant, as described in some recent calculations. L2 Pup may serve as the prototype of this phase of stellar evolution where it could lose about 15% of its initial main sequence mass.

Keywords

PULSATING SEMIREGULAR
SEMIREGULAR RED
SLOW WIND
RED GIANT
GIANT L2
L2 PUP
WIND
PUP

All Related Versions

Version 1, 2001-12-10, ArXiv
Published version: The Astrophysical Journal, 569 (2), 964.

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