94 citations · 388 across the 20 of their papers we have counts for
20 papers
Old and Bright: The Remarkable Radio Brightening of the Engine-driven SN 2012au Several Years After Explosion Signals the Birth of a PWN
Eli Wiston, Raffaella Margutti, A. J. Nayana +23
We present the results from an extensive broad-band (radio to X-rays) observing campaign of the engine-driven Type Ib SN 2012au in the first 13 years of evolution. The early-time (…
Delayed radio emission in tidal disruption events from collisions of outflows driven by disk instabilities
Samantha C. Wu, Daichi Tsuna, Brenna Mockler +1
Delayed radio emission has been associated with a growing proportion of tidal disruption events (TDEs). For many events, the radio synchrotron emission is inferred to originate fro…
A Spectroscopic Hunt for Post-Red Supergiants in the Large Magellanic Cloud II: Turbulent Line Broadening in the Spectra of LMC Yellow Supergiants
Trevor Z. Dorn-Wallenstein, Kaitlyn M. Chen, Samantha C. Wu +4
Massive stars in the Hertzsprung gap are a mixed population of objects in short-lived evolutionary phases: yellow supergiants (YSGs) evolving towards the red supergiant (RSG) phase…
The first radio view of a type Ibn supernova in SN 2023fyq: Understanding the mass-loss history in the last decade before the explosion
Raphael Baer-Way, A. J. Nayana, Wynn Jacobson-Galan +13
Supernovae that interact with hydrogen-poor, helium-rich circumstellar material (CSM), known as Type Ibn supernovae (SNe Ibn), present a unique opportunity to probe mass-loss proce…
Luminous Late-time Radio Emission from Supernovae Interacting with Circumbinary Material
Samantha C. Wu, Daichi Tsuna
Numerous core-collapse supernovae (CCSNe) exhibit signatures of interaction with circumstellar material (CSM). Bright radio emission years after the SN is one such indication of de…
Black Hole Survival Guide: Searching for Stars in the Galactic Center That Endure Partial Tidal Disruption
Rewa Clark Bush, Samantha C. Wu, Rosa Wallace Everson +3
Once per 10,000-100,000 years, an unlucky star may experience a close encounter with a supermassive black hole (SMBH), partially or fully tearing apart the star in an exceedingly b…
Multi-Phase Shock Cooling Emission in Ultra-Stripped Supernovae
Annastasia Haynie, Samantha C. Wu, Anthony L. Piro +1
Ultra-stripped and Type Ibn supernovae (USSNe and SNe Ibn, respectively) are fast-evolving, hydrogen-poor transients that often show signs of interaction with dense circumstellar m…
Merger Precursor: Year-long Transients Preceding Mergers of Low-mass Stripped Stars with Compact Objects
Daichi Tsuna, Samantha C. Wu, Jim Fuller +2
Binary mass transfer can occur at high rates due to rapid expansion of the donor's envelope. In the case where mass transfer is unstable, the binary can rapidly shrink its orbit an…
SN 2023zaw: an ultra-stripped, nickel-poor supernova from a low-mass progenitor
Kaustav K. Das, Christoffer Fremling, Mansi M. Kasliwal +34
We present SN 2023zaw a sub-luminous ( mag) and rapidly-evolving supernova ( days), with the lowest nickel mass (…
Bright Supernova Precursors by Outbursts from Massive Stars with Compact Object Companions
Daichi Tsuna, Tatsuya Matsumoto, Samantha C. Wu +1
A fraction of core-collapse supernovae (SNe) with signs of interaction with a dense circumstellar matter are preceded by bright precursor emission. While the precursors are likely…
Probing pre-supernova mass loss in double-peaked Type Ibc supernovae from the Zwicky Transient Facility
Kaustav K. Das, Mansi M. Kasliwal, Jesper Sollerman +34
Eruptive mass loss of massive stars prior to supernova (SN) explosion is key to understanding their evolution and end fate. An observational signature of pre-SN mass loss is the de…
Extreme mass loss in low-mass type Ib/c supernova progenitors
Samantha Wu, Jim Fuller
Many core collapse supernovae (SNe) with hydrogen-poor and low-mass ejecta, such as ultra-stripped SNe and type Ibn SNe, are observed to interact with dense circumstellar material…
Dynamical Unification of Tidal Disruption Events
Lars Lund Thomsen, Tom Kwan, Lixin Dai +2
About a hundred tidal disruption events (TDEs) have been observed and they exhibit a wide range of emission properties both at peak and over their lifetimes. Some TDEs peak predomi…
Wave-driven outbursts and variability of low-mass supernova progenitors
Samantha Wu, Jim Fuller
In a substantial number of core-collapse supernovae, early-time interaction indicates a dense circumstellar medium (CSM) that may be produced by outbursts from the progenitor star.…
Wave-driven mass loss of stripped envelope massive stars: progenitor-dependence, mass ejection, and supernovae
Shing-Chi Leung, Samantha Wu, Jim Fuller
The discovery of rapidly rising and fading supernovae powered by circumstellar interaction has suggested the pre-supernova mass eruption phase as a critical phenomenon in massive s…
A Diversity of Wave-driven Pre-supernova Outbursts
Samantha Wu, Jim Fuller
Many core-collapse supernova progenitors show indications of enhanced pre-supernova (SN) mass loss and outbursts, some of which could be powered by wave energy transport within the…
Successful Common Envelope Ejection and Binary Neutron Star Formation in 3D Hydrodynamics
Jamie A. P. Law-Smith, Rosa Wallace Everson, Enrico Ramirez-Ruiz +10
A binary neutron star merger has been observed in a multi-messenger detection of gravitational wave (GW) and electromagnetic (EM) radiation. Binary neutron stars that merge within…
The Art of Modeling Stellar Mergers and the Case of the B[e] Supergiant R4 in the Small Magellanic Cloud
Samantha Wu, Rosa Wallace Everson, Fabian R. N. Schneider +2
Most massive stars exchange mass with a companion, leading to evolution which is altered drastically from that expected of stars in isolation. Such systems are the result of unusua…
Super-Eddington Accretion in Tidal Disruption Events: the Impact of Realistic Fallback Rates on Accretion Rates
Samantha Wu, Eric R. Coughlin, Chris Nixon
After the tidal disruption of a star by a massive black hole, disrupted stellar debris can fall back to the hole at a rate significantly exceeding its Eddington limit. To understan…
Recovery schemes for primitive variables in general-relativistic magnetohydrodynamics
Daniel M. Siegel, Philipp Mösta, Dhruv Desai +1
General-relativistic magnetohydrodynamic (GRMHD) simulations are an important tool to study a variety of astrophysical systems such as neutron star mergers, core-collapse supernova…