Deep V and K band photometry of the host galaxy of Haro 11

Details Deep V and K band photometry of the host galaxy of Haro 11 Deep V and K band photometry of the host galaxy of Haro 11

2009-04-28

arxiv.org/abs/0904.4502v2

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

6 pages, 4 figures, to be published in conference proceedings of "Star-forming Dwarf Galaxies: Ariadne's Thread in the Cosmic

Scientific paper

Previous studies of the host galaxy of Haro 11 have suggested an extreme red color of V-K=4.2+-0.8 which cannot be reconciled with any normal stellar population of reasonable metallicity. We present the deepest V and K band data to date of the blue compact galaxy (BCG) Haro 11 and derive a new V-K color for the host. Our new data suggest a much more modest value of V-K=2.3+-0.2, which is in the same range as V-K colors measured for several other BCGs. The new Haro 11 color is not abnormally red and can be attributed to an old metal-poor stellar population with a Salpeter initial mass function.

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