High spatial resolution near-infrared (NIR) images of the central 24 × 24 arcsec2 (˜2 × 2 kpc2) of the elliptical galaxy NGC 1052 reveal a total of 25 compact...
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PublicationThe most recent burst of star formation in the massive elliptical galaxy NGC 1052
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PublicationThe nearest extreme starburst: bubbles, young star clusters and outflow in the merger NGC 3256
We have studied the extreme starburst in the infrared merger NGC 3256. We detect four galactic bubbles (using ESO New Technology Telescope and Hubble Space...
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PublicationThe NGC 346 massive star census. Nitrogen abundances for apparently single, narrow lined, hydrogen core burning B-type stars
Previous analyses of two large spectroscopic surveys of early-type stars in the Large Magellanic Cloud (LMC) have found an excess of nitrogen enriched B-type...
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TalkThe nuclei of galaxies
The centers of massive galaxies are special in many ways, not least because all of them are believed to host supermassive black holes. Since the discovery of a...
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PublicationThe nucleus of NGC 253 and its massive stellar clusters at parsec scales
Very Large Telescope adaptive optics images of NGC 253 with resolutions down to 200mas resolve the central 300pc of this galaxy in ~37 infrared (IR) bright...
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PublicationThe Pressure-confined Wind of the Massive and Compact Super Star Cluster M82-A1
The observed parameters of the young super star cluster M82-A1 and its associated compact H II region are here shown to indicate a low heating efficiency or...
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PublicationThe R136 star cluster dissected with Hubble Space Telescope/STIS. I. Far-ultraviolet spectroscopic census and the origin of He II λ1640 in young star clusters
We introduce a Hubble Space Telescope (HST)/Space Telescope Imaging Spectrograph (STIS) stellar census of R136a, the central ionizing star cluster of 30 Doradus...
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PublicationThe relation between the most-massive star and its parental star cluster mass
We present a thorough literature study of the most-massive star, mmax, in several young star clusters in order to assess whether or not star clusters are...
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PublicationThe Resolved Stellar Populations in the LEGUS Galaxies1
The Legacy ExtraGalactic UV Survey (LEGUS) is a multiwavelength Cycle 21 Treasury program on the Hubble Space Telescope. It studied 50 nearby star-forming...