A Super-Deep Study of the Outskirts of Haro 11

Details A Super-Deep Study of the Outskirts of Haro 11 A Super-Deep Study of the Outskirts of Haro 11

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1240..295m&link_type=abstract

HUNTING FOR THE DARK: THE HIDDEN SIDE OF GALAXY FORMATION. Edited by Victor P. Debattista and Cristina C. Popescu AIP Conferen

Physics

Stellar Evolution, Colour, Spiral Galaxies, Nebulae, Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages, Luminosities, Magnitudes, Effective Temperatures, Colors, And Spectral Classification, Spiral Galaxies, Planetary Nebulae

Scientific paper

The low surface brightness host of Haro 11 has been observed to have anomalously red optical/NIR colors of V-K = 4.2+/-0.8 [1]. Predictions from current stellar evolutionary models for any normal stellar population over a wide range of metallicities are inconsistent with this color. We present the deepest V and K band observations to date of Haro 11 and derive a new V-K color for the host galaxy. Our new data suggest a far less extreme colour of V-K = 2.3+/-0.2, which is perfectly consistent with the expectations for an old host galaxy with the same metallicity as that derived from nebular emission lines in the star-forming center.

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