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The Extremely Young Star Cluster Population In Haro 11
Stockholm University, Faculty of Science, Department of Astronomy.
Stockholm University, Faculty of Science, Department of Astronomy.
Stockholm University, Faculty of Science, Department of Astronomy.
2010 (English)In: Galaxy Wars: Star Formation and Stellar Populations in Interacting Galaxies / [ed] Beverly Smith, James Higdon, Sarah Higdon, and Nathan Bastian, San Francisco: Astronomical Society of the Pacific , 2010, 74- p.Conference paper, Published paper (Refereed)
Abstract [en]

We have performed a deep multi-band photometric analysis of the star cluster population of Haro 11. This starburst galaxy (log L_FUV = 10.3 L_sun) is considered a nearby analogue of Lyman break galaxies (LBGs) at high redshift. The study of the numerous star clusters in the systems is an effective way to investigate the formation and evolution of the starburst phase. In fact, the SED fitting models have revealed a surprisingly young star cluster population, with ages between 0.5 and 40 Myr, and estimated masses between 10^3 and 10^7 solar masses. An independent age estimation has been done with the EW(Halpha) analysis of each cluster. This last analysis has confirmed the young ages of the clusters. We noticed that the clusters with ages between 1 and 10 Myr show a flux excess in H (NIC3/F160W) and/or I (WFPC2/F814W) bands with respect to the evolutionary models. Once more Haro 11 represents a challenge to our understanding.

Place, publisher, year, edition, pages
San Francisco: Astronomical Society of the Pacific , 2010. 74- p.
Series
Astronomical Society of the Pacific conference series, ISSN 1050-3390 ; 423
Keyword [en]
Astrophysics - Cosmology and Extragalactic Astrophysics
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:su:diva-36181ISBN: 978-1-58381-726-1 (print)OAI: oai:DiVA.org:su-36181DiVA: diva2:288932
Available from: 2010-01-22 Created: 2010-01-22 Last updated: 2011-01-18Bibliographically approved

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