C32: A young star cluster in IC 1613

Citation
Tk. Wyder et al., C32: A young star cluster in IC 1613, PUB AST S P, 112(771), 2000, pp. 594-598
Citations number
18
Categorie Soggetti
Space Sciences
Journal title
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
ISSN journal
00046280 → ACNP
Volume
112
Issue
771
Year of publication
2000
Pages
594 - 598
Database
ISI
SICI code
0004-6280(200005)112:771<594:CAYSCI>2.0.ZU;2-V
Abstract
The Local Group irregular galaxy IC 1613 has remained an enigma for many ye ars because of its apparent lack of star clusters. We report the successful search for clusters among several of the candidate objects identified many years ago on photographic plates. We have used a single Hubble Space Teles cope WFPC2 pointing and a series of images obtained with the WIYN telescope under exceptional seeing conditions, examining a total of 23 of the previo usly published candidates. All but six of these objects were found to be ei ther asterisms or background galaxies. Five of the six remaining candidates possibly are small, sparse clusters, and the sixth, C32, is an obvious clu ster. It is a compact, young object, with an age of less than 10 million ye ars and a total absolute magnitude of M-nu = - 5.78 +/- 0.16 within a radiu s of 13 pc.