A fresh view on Henize 2-10 with VLT/NAOS-CONICA

Abstract

We present high-resolution observations of Henize 2-10 in Ks (2.2um), L' (3.8um), M' (4.8um) bands. These allow for the first time to track accurately the structures at the heart of the galaxy from the optical to the radio. All radio knots previously observed can now be associated with L' and Ks emitting regions. This implies a revision of their physical nature. Instead of highly extinguished ultra-dense HII regions, we propose that two of the 5 radio knots are either supernova remnants or "normal" HII regions, while the remaining three are bona fide ultra-dense HII regions, although less obscured than was previously thought.

arXiv comment12 pages, 6 figures, accepted for publication in ApJ, full resolution figs available on request to [email protected]

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• The nucleus of NGC 253 and its massive stellar clusters at parsec scales
• The MUSE view of He 2-10: no AGN ionization but a sparkling starburst
• The Extreme Star Formation Activity of Arp299 Revealed by Spitzer IRS Spectral Mapping
• On the origin of the red excess in very young super star clusters: the case of SBS 0335-052E
• Spectrophotometric investigations of Blue Compact Dwarf Galaxies: Markarian 35
• New Insights into the Physical Conditions and Internal Structure of a Candidate Proto-Globular Cluster
• Star cluster formation and evolution in Mrk 930: properties of a metal-poor starburst
• Integral-field near-infrared spectroscopy of two blue dwarf galaxies: NGC 5253 and He 2-10
• Resolving the molecular environment of Super Star Clusters in Henize 2-10
• High spatial resolution mid-infrared spectroscopy of the starburst galaxies NGC 3256, IIZw40 and Henize 2-10
• The Massive Star Clusters in the Dwarf Merger ESO 185-IG13: is the Red Excess Ubiquitous in Starbursts?
• Brackett Lines from the Super Star Cluster Nebulae in He 2-10
• The Diffuse and Compact X-ray Components of the Starburst Galaxy Henize~2-10
• The Association of Molecular Gas and Natal Super Star Clusters in Henize 2-10
• The interstellar medium of dwarf galaxies: new insights from Machine Learning analysis of emission line spectra
• Towards a More Complex Understanding of Natal Super Star Clusters with Multiwavelength Observations
• Revisiting the Gas Dynamics of Henize 2-10: Possible Drivers of the Starburst