254 citations · 590 across the 13 of their papers we have counts for
13 papers
Rethinking Thorne-Żytkow Object Formation: The Fate of X-ray Binary LMC X-4 and Implications for Ultra-long Gamma-ray Bursts
Tenley Hutchinson-Smith, Rosa Wallace Everson, Angela A. Twum +5
We present a start-to-end simulation aimed at studying the long-term fate of high-mass X-ray binaries and whether a Thorne-Żytkow object (TŻO) might ultimately be assembled. We ana…
A Multiwavelength Study of the Massive Colliding Wind Binary WR 20a: A Possible Progenitor for Fast-Spinning LIGO Binary Black Hole Mergers
Grace M. Olivier, Laura A. Lopez, Katie Auchettl +7
WR 20a is the most massive close-in binary known in our Galaxy. It is composed of two 80 M Wolf-Rayet stars with a short period of 3.7 days in the open cl…
Fallback supernova assembly of heavy binary neutron stars and light black hole-neutron star pairs and the common stellar ancestry of GW190425 and GW200115
Alejandro Vigna-Gómez, Sophie L. Schrøder, Enrico Ramirez-Ruiz +4
The detection of the unusually heavy binary neutron star merger GW190425 marked a stark contrast to the mass distribution from known Galactic pulsars in double neutron star binarie…
On the maximum stellar rotation to form a black hole without an accompanying luminous transient
Ariadna Murguia-Berthier, Aldo Batta, Agnieszka Janiuk +4
The collapse of a massive star with low angular momentum content is commonly argued to result in the formation of a black hole without an accompanying bright transient. Our goal in…
The origin of spin in binary black holes: Predicting the distributions of the main observables of Advanced LIGO
Simone S. Bavera, Tassos Fragos, Ying Qin +7
We study the formation of coalescing binary black holes via the evolution of isolated field binaries that go through the common envelope phase in order to obtain the combined distr…
Accretion Feedback from newly-formed black holes and its implications for LIGO Sources
Aldo Batta, Enrico Ramirez-Ruiz
Most common formation channels of stellar mass black hole (BH) binaries like the ones observed by LIGO, often assume they are assembled from the direct collapse of massive pre-supe…
Probing the Black Hole Merger History in Clusters using Stellar Tidal Disruptions
Johan Samsing, Tejaswi Venumadhav, Liang Dai +5
The dynamical assembly of binary black holes (BBHs) in dense star clusters (SCs) is one of the most promising pathways for producing observable gravitational wave (GW) sources, how…
Tidal Disruptions of Stars by Binary Black Holes: Modifying the Spin Magnitudes and Directions of LIGO Sources in Dense Stellar Environments
Martin Lopez, Aldo Batta, Enrico Ramirez-Ruiz +2
Binary black holes (BBHs) appear to be widespread and are able to merge through the emission of gravitational waves, as recently illustrated by LIGO. The spin of the BBHs is one of…
Black Hole Formation in Fallback Supernova and the Spins of LIGO Sources
Sophie L. Schrøder, Aldo Batta, Enrico Ramirez-Ruiz
Here we investigate within the context of field binary progenitors how the the spin of LIGO sources vary when the helium star-descendent black hole (BH) is formed in a failed super…
The Formation of Rapidly Rotating Black Holes in High Mass X-ray Binaries
Aldo Batta, Enrico Ramirez-Ruiz, Chris Fryer
High mass X-ray binaries (HMXRBs) like Cygnus X-1, host some of the most rapidly spinning black holes (BHs) known to date, reaching spin parameters . However, there…
Lessons from the Onset of a Common Envelope Episode: the Remarkable M31 2015 Luminous Red Nova Outburst
Morgan MacLeod, Phillip Macias, Enrico Ramirez-Ruiz +3
This paper investigates the recent stellar merger transient M31LRN 2015 in the Andromeda galaxy. We analyze published optical photometry and spectroscopy along with a Hubble Space…
Inner Engine Shutdown from Transitions in the Angular Momentum Distribution in Collapsars
Aldo Batta, Willaim H. Lee
For the collapsar scenario to be effective in the production of Gamma Ray Bursts, the infalling star's angular momentum must be larger than the critical angular momentum nee…
Cooling-induced structure formation and evolution in collapsars
Aldo Batta, William H. Lee
The collapse of massive rotating stellar cores and the associated accretion onto the newborn compact object is thought to power long gamma ray bursts (GRBs). The physical scale and…