1k citations · 11.7k across the 197 of their papers we have counts for
15 papers · 1 filter
Bright Type IIP Supernovae in Low-Metallicity Galaxies
Spencer Scott, Matt Nicholl, Peter Blanchard +2
We present measurements of the pseudo-equivalent width of the Fe II,5018 absorption feature in the spectra of 12 Type IIP supernovae (SNe II) in low luminosity () dwarf h…
Target of Opportunity Observations of Gravitational Wave Events with LSST
R. Margutti, P. Cowperthwaite, Z. Doctor +79
The discovery of the electromagnetic counterparts to the binary neutron star merger GW170817 has opened the era of GW+EM multi-messenger astronomy. Exploiting this breakthrough req…
A Search for Optical Emission from Binary-Black-Hole Merger GW170814 with the Dark Energy Camera
Z. Doctor, R. Kessler, K. Herner +96
Binary black hole (BBH) mergers found by the LIGO and Virgo detectors are of immense scientific interest to the astrophysics community, but are considered unlikely to be sources of…
A Hydrogen-Poor Superluminous Supernova with Enhanced Iron-Group Absorption: A New Link Between SLSNe and Broad-Lined Type Ic SNe
P. K. Blanchard, M. Nicholl, E. Berger +4
We present optical observations of the Type I superluminous supernova (SLSN-I) SN2017dwh at , which reached mag at peak. Spectra taken a few…
One thousand days of SN 2015bn: HST imaging shows a light curve flattening consistent with magnetar predictions
Matt Nicholl, Peter K. Blanchard, Edo Berger +9
We present the first observations of a Type I superluminous supernova (SLSN) at days after maximum light. We observed SN 2015bn using the Hubble Space Telescope Adva…
Superluminous Supernovae in LSST: Rates, Detection Metrics, and Light Curve Modeling
V. Ashley Villar, Matt Nicholl, Edo Berger
We explore and demonstrate the capabilities of LSST to study Type I superluminous supernovae (SLSNe). We first fit the light curves of 58 known SLSNe at z~0.1-1.6, using an analyti…
Where is the engine hiding its missing energy? Constraints from a deep X-ray non-detection of the Superluminous SN 2015bn
Kornpob Bhirombhakdi, Ryan Chornock, Raffaella Margutti +5
SN 2015bn is a nearby hydrogen-poor superluminous supernova (SLSN-I) that has been intensively observed in X-rays with the goal to detect the spin-down powered emission from a magn…
Serendipitous Discovery of a 14-year-old Supernova at 16 Mpc
James Guillochon, Jorge Stockler de Moraes, Matt Nicholl +5
In this Research Note we present a serendipitous discovery of the transient CGS2004A (AT2004iu) in an image collected by the Carnegie-Irvine Galaxy Survey of the Scd: galaxy NGC 18…
Nebular-phase spectra of superluminous supernovae: physical insights from observational and statistical properties
Matt Nicholl, Edo Berger, Peter K Blanchard +2
We study the spectroscopic evolution of superluminous supernovae (SLSNe) later than 100 days after maximum light. We present new data for Gaia16apd and SN2017egm, and analyse these…
Unveiling the Engines of Fast Radio Bursts, Super-Luminous Supernovae, and Gamma-Ray Bursts
Ben Margalit, Brian D. Metzger, Edo Berger +3
Young, rapidly spinning magnetars are invoked as central engines behind a diverse set of transient astrophysical phenomena, including gamma-ray bursts (GRB), super-luminous superno…
Systematic investigation of the fallback accretion powered model for hydrogen-poor superluminous supernovae
Takashi J. Moriya, Matt Nicholl, James Guillochon
The energy liberated by fallback accretion has been suggested as a possible engine to power hydrogen-poor superluminous supernovae. We systematically investigate this model using t…
Spitzer Space Telescope Infrared Observations of the Binary Neutron Star Merger GW170817
V. A. Villar, P. S. Cowperthwaite, E. Berger +12
We present Spitzer Space Telescope 3.6 and 4.5 micron observations of the binary neutron star merger GW170817 at 43, 74, and 264 days post-merger. Using the final observation as a…
A Decline in the X-ray through Radio Emission from GW170817 Continues to Support an Off-Axis Structured Jet
K. D. Alexander, R. Margutti, P. K. Blanchard +17
We present new observations of the binary neutron star merger GW170817 at days post-merger, at radio (Karl G. Jansky Very Large Array; VLA), X-ray (Chandra X-ra…
A Precise Distance to the Host Galaxy of the Binary Neutron Star Merger GW170817 Using Surface Brightness Fluctuations
Michele Cantiello, J. B. Jensen, J. P. Blakeslee +25
The joint detection of gravitational waves and electromagnetic radiation from the binary neutron star (BNS) merger GW170817 has provided unprecedented insight into a wide range of…
The Binary Neutron Star event LIGO/VIRGO GW170817 a hundred and sixty days after merger: synchrotron emission across the electromagnetic spectrum
Raffaella Margutti, K. D. Alexander, X. Xie +17
We report deep Chandra, HST and VLA observations of the binary neutron star event GW170817 at d after merger. These observations show that GW170817 has been steadily bright…