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- University of California, BerkeleyUS44 papers
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4 papers · 1 filter
The Disruption and Fueling of M33
M. E. Putman, J. E. G. Peek, A. Muratov +7
The disruption of the M33 galaxy is evident from its extended gaseous structure. We present new data from the Galactic Arecibo L-Band Feed Array HI (GALFA-HI) Survey that show the…
Properties of WNh stars in the Small Magellanic Cloud: evidence for homogeneous evolution
F. Martins, D. J. Hillier, J. C. Bouret +4
We derive the physical properties of three WNh stars in the SMC to constrain stellar evolution beyond the main sequence at low metallicity and to investigate the metallicity depend…
Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
M. Kowalski, D. Rubin, G. Aldering +67
We present a new compilation of Type Ia supernovae (SNe Ia), a new dataset of low-redshift nearby-Hubble-flow SNe and new analysis procedures to work with these heterogeneous compi…
The Extended HST Supernova Survey: The Rate of SNe Ia at z>1.4 Remains Low
Tomas Dahlen, Louis-Gregory Strolger, Adam G. Riess
We use the HST ACS imaging of the two GOODS fields during Cycles 11, 12, and 13 to derive the Type Ia supernova rate in four redshift intervals in the range 0.2<z<1.8. Compared to…