9 papers
Ongoing Massive Star Formation in NGC 604
Juan R. Martínez-Galarza, Deidre Hunter, Brent Groves +1
NGC 604 is the second most massive H II region in the Local Group, thus an important laboratory for massive star formation. Using a combination of observational and analytical tool…
The first Infrared study of the close environment of a long Gamma-Ray Burst
E. Le Floc'h, V. Charmandaris, K. Gordon +5
We present a characterization of the close environment of GRB980425 based on 5-160mic spectro-imaging obtained with Spitzer. The Gamma-Ray Burst GRB980425 occurred in a nearby (z=0…
Spitzer IRS Spectral Mapping of the Toomre Sequence: Spatial Variations of PAH, Gas, and Dust Properties in Nearby Major Mergers
S. Haan, L. Armus, S. Laine +13
We have mapped the key mid-IR diagnostics in eight major merger systems of the Toomre Sequence (NGC4676, NGC7592, NGC6621, NGC2623, NGC6240, NGC520, NGC3921, and NGC7252) using the…
The Displaced Dusty ISM of NGC 3077: Tidal Stripping in the M 81 Triplet
Fabian Walter, Karin Sandstrom, G. Aniano +32
We present the detection of extended (~30 kpc^2) dust emission in the tidal \hi\ arm near NGC 3077 (member of the M\,81 triplet) using SPIRE on board Herschel. Dust emission in the…
Influence of the Environment on PAH Emission in Star-Forming Regions
V. Lebouteiller, J. Bernard-Salas, D. G. Whelan +5
We investigate the emission properties of polycyclic aromatic hydrocarbons (PAHs) in various metallicity environments with the Infrared Spectrograph on board Spitzer. Local giant H…
The low-mass Initial Mass Function in the 30 Doradus starburst cluster
M. Andersen, H. Zinnecker, A. Moneti +5
We present deep Hubble Space Telescope (HST) NICMOS 2 F160W band observations of the central 56*57" (14pc*14.25pc) region around R136 in the starburst cluster 30 Dor (NGC 2070) loc…