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A census of the Wolf-Rayet content in Westerlund 1 from near-infrared imaging and spectroscopy
Paul A. Crowther, L. J. Hadfield, J. S. Clark +2
New NTT/SOFI imaging and spectroscopy of the Wolf-Rayet population in Westerlund 1 are presented. Narrow-band near-IR imaging together with follow up spectroscopy reveals four new…
Ultracompact Blue Dwarf Galaxies: Hubble Space Telescope Imaging and Stellar Population Analysis
Michael R. Corbin, William D. Vacca, Roberto Cid Fernandes +3
We present deep Hubble Space Telescope Advanced Camera for Surveys / High Resolution Channel U, narrow-V, and I images of nine "ultracompact" blue dwarf galaxies (UCBDs) selected f…
Low Carbon Abundance in Type Ia Supernovae
G. H. Marion, P. Hoeflich, J. C. Wheeler +3
We investigate the quantity and composition of unburned material in the outer layers of three normal Type Ia supernovae (SNe Ia): 2000dn, 2002cr and 20 04bw. Pristine matter from a…