70 citations · 312 across the 8 of their papers we have counts for
8 papers
Seven years of coordinated Chandra-NuSTAR observations of SN2014C unfold the extreme mass-loss history of its stellar progenitor
Daniel Brethauer, Raffaella Margutti, Danny Milisavljevic +13
We present the results from our seven-year long broad-band X-ray observing campaign of SN\,2014C with \emph{Chandra} and \emph{NuSTAR}. These coordinated observations represent the…
Radio Analysis of SN 2004C Reveals an Unusual CSM Density Profile as a Harbinger of Core Collapse
Lindsay DeMarchi, R. Margutti, J. Dittman +13
We present extensive multi-frequency VLA and VLBA observations of the radio-bright supernova (SN) IIb SN 2004C that span days post-explosion. We interpret the tempo…
The Circumstellar Environments of Double-Peaked, Calcium-strong Supernovae 2021gno and 2021inl
Wynn Jacobson-Galán, Padma Venkatraman, Raffaella Margutti +42
We present panchromatic observations and modeling of calcium-strong supernovae (SNe) 2021gno in the star-forming host galaxy NGC 4165 (D = 30.5 Mpc) and 2021inl in the outskirts of…
Radio and X-ray observations of the luminous Fast Blue Optical Transient AT2020xnd
Joe S. Bright, Raffaella Margutti, David Matthews +25
We present deep X-ray and radio observations of the Fast Blue Optical Transient (FBOT) AT2020xnd/ZTF20acigmel at from d to d after explosion. AT2020xnd belongs…
Luminous Late-time Radio Emission from Supernovae Detected by the Karl G. Jansky Very Large Array Sky Survey (VLASS)
M. C. Stroh, G. Terreran, D. L. Coppejans +10
We present a population of 19 radio-luminous supernovae (SNe) with emission reaching in the first epoch of the Very Large Array…
Prospects for Multimessenger Observations of Thorne-Żytkow Objects
Lindsay DeMarchi, J. R. Sanders, Emily M. Levesque
Thorne-Żytkow objects (TŻOs) are a class of stellar object comprised of a neutron star core surrounded by a large and diffuse envelope. Their exterior appearance is identical to re…
SN 2019ehk: A Double-Peaked Ca-rich Transient with Luminous X-ray Emission and Shock-Ionized Spectral Features
Wynn V. Jacobson-Galán, Raffaella Margutti, Charles D. Kilpatrick +64
We present panchromatic observations and modeling of the Calcium-rich supernova 2019ehk in the star-forming galaxy M100 (d16.2 Mpc) starting 10 hours after explosion and c…
Spitzer Observations of Long Term Infrared Variability Among Young Stellar Objects in Chamaeleon I
Kevin M. Flaherty, Lindsay DeMarchi, James Muzerolle +5
Infrared variability is common among young stellar objects, with surveys finding daily to weekly fluctuations of a few tenths of a magnitude. Space-based observations can produce h…