A search for Intra-group planetary nebulae in the M81 group

被引：0
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作者：
Feldmeier, JJ
Durrell, PR
Ciardullo, R
Jacoby, GH
机构：
[1] Case Western Reserve Univ, Cleveland, OH 44106 USA
[2] Penn State Univ, University Pk, PA 16802 USA
[3] WIYN Observ, Tucson, AZ 85726 USA
来源：
PLANETARY NEBULAE: THEIR EVOLUTION AND ROLE IN THE UNIVERSE | 2003年 / 209期
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present the initial results from an [O III] A 5007 survey for intra-group planetary nebulae in the M 81 group of galaxies. A total of 0.36 square degrees of the survey have been analyzed thus far, and a total of four intra-group candidates have been detected. These data allow us to probe the physics of galaxy interactions in small groups, and give us an upper limit for the density of intracluster starlight. We find that the M 81 group has less than 3% of its stars in an intra-group component; this is much less than the fraction seen in richer galaxy clusters.
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页码：605 / 606
页数：2
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