Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988aj.....96..116g&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 96, July 1988, p. 116-122. NASA-supported research.
Astronomy and Astrophysics
Astronomy
45
Galactic Clusters, Galactic Mass, Globular Clusters, Infrared Astronomy Satellite, Intergalactic Media, Red Giant Stars, Cosmic Dust, Stellar Mass Ejection, Stellar Winds, Variable Stars
Scientific paper
IRAS observations of the globular cluster 47 Tucanae, including both individual cluster stars and the integrated cluster emission, are presented and analyzed. The integrated emission from the cluster is dominated by stellar photospheric emission in all of the IRAS bandpasses with small amounts of excess at 12, 25, and 100 μm. The excess at 100 μm is attributed to emission from intracluster dust heated by integrated cluster starlight and is the first positive detection of this component of the intracluster medium in any galactic globular cluster. Excess 12 and/or 25 μm emission associated with several individual red giant stars in the outer portion of the cluster is observed, implying substantial dust condensation and mass-loss rates for these stars. The small 12 and 25 μm excess in integrated emission from the central 6arcmin of 47 Tuc is consistent with the projected excess emission of the red giant cluster stars.
de Jong Teije
Emerson James P.
Gillett F. G.
Neugebauer Gernot
Rice Walter L.
No associations
LandOfFree
IRAS observations of the globular cluster 47 Tucanae does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with IRAS observations of the globular cluster 47 Tucanae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IRAS observations of the globular cluster 47 Tucanae will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1422123