Now showing items 1-20 of 23

• #### The Afterglow and Environment of the Short Grb 111117a ﻿

(IOP Publishing, 2012)
We present multi-wavelength observations of the afterglow of the short GRB 111117A, and follow-up observations of its host galaxy. From rapid optical and radio observations we place limits of r & 25.5 mag at δt ≈ 0.55 d ...
• #### Core-collapse Supernova Progenitors in the Era of Untargeted Transient Searches ﻿

(2014-06-06)
Core-collapse supernovae (SNe) are the highly energetic explosions of massive stars (> 8 solar masses) that are pervasive in their influence throughout astrophysics. They are the phenomenon with primary responsibility for ...
• #### Cosmological Constraints from Measurements of Type Ia Supernovae Discovered during the First 1.5 yr of the Pan-STARRS1 Survey ﻿

(IOP Publishing, 2014)
We present griz P1 light curves of 146 spectroscopically confirmed Type Ia supernovae (SNe Ia; 0.03 < z < 0.65) discovered during the first 1.5 yr of the Pan-STARRS1 Medium Deep Survey. The Pan-STARRS1 natural photometric ...
• #### GALEX Detection of Shock Breakout in Type IIP Supernova PS1-13arp: Implications for the Progenitor Star Wind ﻿

(IOP Publishing, 2015)
We present the GALEX detection of a UV burst at the time of explosion of an optically normal supernova (SN) IIP (PS1-13arp) from the Pan-STARRS1 survey at z = 0.1665. The temperature and luminosity of the UV burst match ...
• #### Metamorphosis of Sn 2014c: Delayed Interaction Between a Hydrogen Poor Core-Collapse Supernova and a Nearby Circumstellar Shell ﻿

(IOP Publishing, 2015)
We present optical observations of supernova SN 2014C, which underwent an unprecedented slow metamorphosis from H-poor type Ib to H-rich type IIn over the course of one year. The observed spectroscopic evolution is consistent ...
• #### A New Approach to Developing Interactive Software Modules Through Graduate Education ﻿

(Springer Verlag, 2014)
Educational technology has attained significant importance as a mechanism for supporting experiential learning of science concepts. However, the growth of this mechanism is limited by the significant time and technical ...
• #### Pan-STARRS1 Discovery of Two Ultraluminous Supernovae at z ≈ 0.9 ﻿

(IOP Publishing, 2011)
We present the discovery of two ultraluminous supernovae (SNe) at z ≈ 0.9 with the Pan-STARRS1 Medium Deep Survey. These SNe, PS1-10ky and PS1-10awh, are among the most luminous SNe ever discovered, comparable to the unusual ...
• #### A Panchromatic View of the Restless Sn 2009ip Reveals the Explosive Ejection of a Massive Star Envelope ﻿

(IOP Publishing, 2013)
The double explosion of SN 2009ip in 2012 raises questions about our understanding of the late stages of massive star evolution. Here we present a comprehensive study of SN 2009ip during its remarkable rebrightenings. ...
• #### PS1-10afx at z = 1.388: Pan-STARRS1 Discovery of a New Type of Superluminous Supernova ﻿

(American Astronomical Society, 2013)
We present the Pan-STARRS1 discovery of PS1-10afx, a unique hydrogen-deficient superluminous supernova (SLSN) at redshift z = 1.388. The light curve peaked at z P1 = 21.7 mag, making PS1-10afx comparable to the most luminous ...
• #### Ps1-10bzj: A Fast, Hydrogen-Poor Superluminous Supernova in a Metal Poor Host Galaxy ﻿

(IOP Publishing, 2013)
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, PS1-10bzj is similar to the hydrogen-poor SLSNe ...
• #### Ps1-12sk Is a Peculiar Supernova From a He-Rich Progenitor System in a Brightest Cluster Galaxy Environment ﻿

(IOP Publishing, 2013)
We report on our discovery and observations of the Pan-STARRS1 supernova (SN) PS1-12sk, a transient with properties that indicate atypical star formation in its host galaxy cluster or pose a challenge to popular progenitor ...
• #### Rapidly evolving and luminous transients from Pan-STARRS1 ﻿

(IOP Publishing, 2014)
In the past decade, several rapidly evolving transients have been discovered whose timescales and luminosities are not easily explained by traditional supernovae (SNe) models. The sample size of these objects has remained ...
• #### Rapidly-Evolving and Luminous Transients From Pan-Starrs1 ﻿

(IOP Publishing, 2014)
In the past decade, several rapidly-evolving transients have been discovered whose timescales and luminosities are not easily explained by traditional supernovae (SN) models. The sample size of these objects has remained ...
• #### Slowly Fading Super-Luminous Supernovae That Are Not Pair-Instability Explosions ﻿

(Nature Publishing Group, 2013)
Super-luminous supernovae that radiate more than 10$^{44}$ ergs per second at their peak luminosity have recently been discovered in faint galaxies at redshifts of 0.1–4. Some evolve slowly, resembling models of ...
• #### Sn 2010ay Is a Luminous and Broad-Lined Type Ic Supernova Within a Low-Metallicity Host Galaxy ﻿

(IOP Publishing, 2012)
We report on our serendipitous pre-discovery detection and detailed follow-up of the broad-lined Type Ic supernova (SN) 2010ay at z = 0.067 imaged by the Pan-STARRS1 3π survey just ∼ 4 days after explosion. The SN had a ...
• #### Sn 2012au: A Golden Link Between Superluminous Supernovae and Their Lower-Luminosity Counterparts ﻿

(IOP Publishing, 2013)
We present optical and near-infrared observations of SN 2012au, a slow-evolving supernova (SN) with properties that suggest a link between subsets of energetic and H-poor SNe and superluminous SNe. SN 2012au exhibited ...
• #### A Spectroscopic Study of Type Ibc Supernova Host Galaxies From Untargeted Surveys ﻿

(IOP Publishing, 2012)
We present the first spectroscopic study of the host environments of Type Ibc supernovae (SN Ibc) discovered exclusively by untargeted SN searches. Past studies of SN Ibc host environments have been biased towards high-mass, ...
• #### Systematic Uncertainties Associated with the Cosmological Analysis of the First Pan-STARRS1 Type Ia Supernova Sample ﻿

(IOP Publishing, 2014)
We probe the systematic uncertainties from the 113 Type Ia supernovae (SN Ia) in the Pan-STARRS1 (PS1) sample along with 197 SN Ia from a combination of low-redshift surveys. The companion paper by Rest et al. (2013) ...
• #### Toward Characterization of the Type IIP Supernova Progenitor Population: A Statistical Sample of Light Curves from Pan-STARRS1 ﻿

(IOP Publishing, 2015)
In recent years, wide-field sky surveys providing deep multiband imaging have presented a new path for indirectly characterizing the progenitor populations of core-collapse supernovae (SNe): systematic light-curve studies. ...
• #### Towards Characterization of the Type Iip Supernova Progenitor Population: A Statistical Sample of Light Curves From Pan-Starrs1 ﻿

(IOP Publishing, 2015)
In recent years, wide-field sky surveys providing deep multiband imaging have presented a new path for indirectly characterizing the progenitor populations of core-collapse supernovae (SNe): systematic light curve studies. ...