Published September 1989 | Version v1
Journal article Metadata-only

Dust clouds around red giant stars - evidence of sublimating comet disks?

Creators

  • 1. NASA, Ames Research Center, Moffett Field, CA (USA)
  • 2. Southwestern Louisiana Univ., Lafayette (USA)

Description

The dust production by disk comets around intermediate mass stars evolving into red giants is studied, focusing on AGB supergiants. The model of Iben and Renzini (1983) is used to study the observed dust mass loss for AGB stars. An expression is obtained for the comet disk net dust production rate and values of the radius and black body temperature corresponding to peak sublimation are calculated for a range of stellar masses. Also, the fractional amount of dust released from a cometesimal disk during a classical nova outburst is estimated. 41 refs

Additional details

Publishing Information

Journal Title
Icarus
Journal Volume
81
Series
Icarus.
Journal Page Range
24-30
ISSN
0019-1035
CODEN
ICRSA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
21021879
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
COMETS; COSMIC DUST; LUMINOSITY; MAIN SEQUENCE STARS; MASS; MASS TRANSFER; MATHEMATICAL MODELS; NOVAE; RED GIANT STARS; SPATIAL DISTRIBUTION; STELLAR WINDS; WOLF-RAYET STARS
Descriptors DEC
BINARY STARS; DISTRIBUTION; DUSTS; ERUPTIVE VARIABLE STARS; GIANT STARS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; STARS; STELLAR ACTIVITY; VARIABLE STARS