Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-09T13:34:41.796Z Has data issue: false hasContentIssue false
  • English
  • Français

The Young Stars in IC 1613

Published online by Cambridge University Press:  25 May 2016

J. Borissova ,
L. Georgiev ,
M. Rosado ,
G. Koenigsberger ,
R. Kurtev  and
G. Ivanov
J. Borissova
Affiliation:
Institute of Astronomy, Bulgarian Academy of Sciences, 72 Tsarigradsko chaussèe, BG-1784 Sofia, Bulgaria
L. Georgiev
Affiliation:
Instituto de Astronomía, Universidad Nacional Autónoma de México, México
M. Rosado
Affiliation:
Instituto de Astronomía, Universidad Nacional Autónoma de México, México
G. Koenigsberger
Affiliation:
Instituto de Astronomía, Universidad Nacional Autónoma de México, México
R. Kurtev
Affiliation:
Department of Astronomy, Sofia University, BG-1164 Sofia, Bulgaria
G. Ivanov
Affiliation:
Department of Astronomy, Sofia University, BG-1164 Sofia, Bulgaria

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Deep UBV and JHK photometry of the stars in IC 1613 was used to investigate the stellar content in the H II regions of the northeast sector of the galaxy. The ages of nine of the associations outlined by Hodge (1978) were determined. A10 and A14 were found to be the youngest associations with ages of approximately 5 Myr, while A12, A18 and A19 were the oldest ones found, having a common age of approx. 20 Myr. Analysis of theoretical HR diagrams shows the presence of young massive stars in the associations, which have been born almost coeval. We have also found evidence of a difference between the slopes of the IMFs and differential LFs, between the group of associations embedded in gas and the group containing A12, A18 and A19, which are not affected by nebulosity.

Type
Part 2: The Database
Information
Symposium - International Astronomical Union , Volume 192: The Stellar Content of Local Group Galaxies , 1999 , pp. 259 - 262
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

Armandroff, T., Massey, P. 1985, ApJ, 291, 685 Google Scholar
Charbonnel, C., Maynet, G., Maeder, A., et al. 1993, A&AS, 101, 415 Google Scholar
Costa, E., Frogel, J. 1996, AJ, 112, 2607 CrossRefGoogle Scholar
Flannery, B., Johnson, B. 1982, ApJ, 263, 166 Google Scholar
Freedman, W. 1988, AJ, 96, 1248 Google Scholar
Georgiev, L., Borissova, J., Rosado, M. et al. 1998, A&AS, 133, 1 Google Scholar
Hodge, P. 1978, ApJS, 37, 145 Google Scholar
Humphreys, R. 1980, ApJ, 238, 65 Google Scholar
Kingsburgh, R.L., Barlow, M.J. 1995, A&A, 295, 171 Google Scholar
Massey, P., Lang, C., DeGioia-Eastwood, K., Garmany, C. 1995, ApJ, 438, 188 Massey, P. 1996, in: WR stars in the framework of stellar evolution, 33-rd Liége Int. Astrophs. Coll., p. 361 CrossRefGoogle Scholar
Sandage, A., Katem, B. 1976, AJ, 81, 743 Google Scholar
Stetson, P. 1993, Users manual for DAOPHOT II.Google Scholar