99 citations · 278 across the 13 of their papers we have counts for
8 papers · 1 filter
An Extreme Ultra-Compact X-ray Binary in a Globular Cluster: Multi-Wavelength Observations of RZ2109 Explored in a Triple System Framework
Kristen C. Dage, Arash Bahramian, Smadar Naoz +6
The globular cluster ultraluminous X-ray source, RZ2109, is a complex and unique system which has been detected at X-ray, ultra-violet, and optical wavelengths. Based on almost 20…
Using Ti Emission to Differentiate Between Thermonuclear Supernova Progenitors
Daniel Kosakowski, Mark Ivan Ugalino, Robert Fisher +3
The radiosotope Ti is produced through -rich freezeout and explosive helium burning in type Ia supernovae (SNe Ia). In this paper, we discuss how the detection of …
Supernova explosions in active galactic nuclear discs
Evgeni Grishin, Alexey Bobrick, Ryosuke Hirai +2
Active galactic nuclei (AGN) are prominent environments for stellar capture, growth and formation. These environments may catalyze stellar mergers and explosive transients, such as…
Late-time Observations of Calcium-Rich Transient SN 2019ehk Reveal a Pure Radioactive Decay Power Source
Wynn V. Jacobson-Galán, Raffaella Margutti, Charles D. Kilpatrick +11
We present imaging of the Calcium-rich supernova (SN) 2019ehk at 276 - 389 days after explosion. These observations represent the latest photometr…
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…
Normal type Ia supernovae from disruptions of hybrid He-CO white-dwarfs by CO white-dwarfs
Hagai B. Perets, Yossef Zenati, Silvia Toonen +1
Type Ia supernovae (SNe) are thought to originate from the thermonuclear explosions of carbon-oxygen (CO) white dwarfs (WDs). The proposed progenitors of standard type Ia SNe have…