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Hydrogen-Poor Superluminous Supernovae from the Pan-STARRS1 Medium Deep Survey
R. Lunnan, R. Chornock, E. Berger +31
We present light curves and classification spectra of 17 hydrogen-poor superluminous supernovae (SLSNe) from the Pan-STARRS1 Medium Deep Survey (PS1 MDS). Our sample contains all o…
High Density Circumstellar Interaction in the Luminous Type IIn SN 2010jl: The first 1100 days
Claes Fransson, Mattias Ergon, Peter J. Challis +16
HST and ground based observations of the Type IIn SN 2010jl are analyzed, including photometry, spectroscopy in the ultraviolet, optical and NIR bands, 26-1128 days after first det…
PS1-10bzj: A Fast, Hydrogen-Poor Superluminous Supernova in a Metal Poor Host Galaxy
R. Lunnan, R. Chornock, E. Berger +26
We present observations and analysis of PS1-10bzj, a superluminous supernova (SLSN) discovered in the Pan-STARRS Medium Deep Survey at a redshift z = 0.650. Spectroscopically, PS1-…
Demographics of the Galaxies Hosting Short-duration Gamma-Ray Bursts
Wen-fai Fong, Edo Berger, Ryan Chornock +17
We present observations of the afterglows and host galaxies of three short-duration gamma-ray bursts (GRBs): 100625A, 101219A and 110112A. We find that GRB 100625A occurred in a z=…
The Unusually Luminous Extragalactic Nova SN 2010U
Ian Czekala, E. Berger, R. Chornock +10
We present observations of the unusual optical transient SN 2010U, including spectra taken 1.03 days to 15.3 days after maximum light that identify it as a fast and luminous Fe II…
A Spectroscopic Study of Type Ibc Supernova Host Galaxies from Untargeted Surveys
Nathan E. Sanders, Alicia M. Soderberg, Emily M. Levesque +8
We present the largest spectroscopic study of the host environments of Type Ibc supernovae (SN Ibc) discovered exclusively by untargeted SN searches. Past studies of SN Ibc host en…
A Jet Break in the X-ray Light Curve of Short GRB 111020A: Implications for Energetics and Rates
Wen-fai Fong, Edo Berger, Raffaella Margutti +8
We present broad-band observations of the afterglow and environment of the short GRB 111020A. An extensive X-ray light curve from Swift/XRT, XMM-Newton and Chandra, spanning ~100 s…
Pan-STARRS1 Discovery of Two Ultra-Luminous Supernovae at z ~ 0.9
L. Chomiuk, R. Chornock, A. M. Soderberg +29
We present the discovery of two ultra-luminous supernovae (SNe) at z ~ 0.9 with the Pan-STARRS1 Medium-Deep Survey. These SNe, PS1-10ky and PS1-10awh, are amongst the most luminous…