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Two Populations of X-ray Pulsars Produced by Two Types of Supernovae
Christian Knigge, Malcolm Coe, Philipp Podsiadlowski
Two types of supernova are thought to produce the overwhelming majority of neutron stars in the Universe. The first type, iron-core collapse supernovae, occurs when a high-mass sta…
Supernova 2011fe from an Exploding Carbon-Oxygen White Dwarf Star
Peter E. Nugent, Mark Sullivan, S. Bradley Cenko +36
Type Ia supernovae (SNe Ia) have been used empirically as standardized candles to reveal the accelerating universe even though fundamental details, such as the nature of the progen…
Constraints on the Progenitor System of the Type Ia Supernova SN 2011fe/PTF11kly
Weidong Li, Joshua S. Bloom, Philipp Podsiadlowski +25
Type Ia supernovae (SNe) serve as a fundamental pillar of modern cosmology, owing to their large luminosity and a well-defined relationship between light-curve shape and peak brigh…
Early radio and X-ray observations of the youngest nearby type Ia supernova PTF11kly (SN 2011fe)
Assaf Horesh, S. R. Kulkarni, Derek B. Fox +20
On August 24 (UT) the Palomar Transient Factory (PTF) discovered PTF11kly (SN 2011fe), the youngest and most nearby type Ia supernova (SN Ia) in decades. We followed this event up…
PTF10ops - a subluminous, normal-width lightcurve Type Ia supernova in the middle of nowhere
Kate Maguire, Mark Sullivan, Rollin C. Thomas +26
PTF10ops is a Type Ia supernova (SN Ia), whose lightcurve and spectral properties place it outside the current SN Ia subtype classifications. Its spectra display the characteristic…
The Spectroscopic Classification and Explosion Properties of SN2009nz Associated with GRB091127 at z=0.490
E. Berger, R. Chornock, T. R. Holmes +6
We present spectroscopic observations of GRB091127 (z=0.490) at the peak of the putative associated supernova, SN2009nz. Subtracting a late-time spectrum of the host galaxy, we iso…