Jeff J. Andrews
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View article: The power of binaries on stripped-envelope supernovae across metallicity: uniform progenitor parameter space and persistently low ejecta masses, but subtype diversity
The power of binaries on stripped-envelope supernovae across metallicity: uniform progenitor parameter space and persistently low ejecta masses, but subtype diversity Open
Stripped-envelope supernovae (SESNe) originate from massive stars that lose their envelopes through binary interactions or stellar winds. The connection between SESN subtypes and their progenitors remains poorly understood, as does the inf…
View article: Hubble Space Telescope Deep Upper Limits Rule out a Surviving Massive Binary Companion to the Type Ic Supernova 2012fh
Hubble Space Telescope Deep Upper Limits Rule out a Surviving Massive Binary Companion to the Type Ic Supernova 2012fh Open
Current explanations of the mass-loss mechanism for stripped-envelope supernovae (SNe) remain divided between single and binary progenitor systems. Here we obtain deep ultraviolet (UV) imaging with the Hubble Space Telescope (HST) of the T…
View article: <tt>POSYDON</tt> Version 2: Population Synthesis with Detailed Binary-evolution Simulations across a Cosmological Range of Metallicities
POSYDON Version 2: Population Synthesis with Detailed Binary-evolution Simulations across a Cosmological Range of Metallicities Open
Whether considering rare astrophysical events on cosmological scales or unresolved stellar populations, accurate models must account for the integrated contribution from the entire history of star formation upon which that population is bu…
View article: HST Deep Upper Limits Rule Out a Surviving Massive Binary Companion to the Type Ic Supernova 2012fh
HST Deep Upper Limits Rule Out a Surviving Massive Binary Companion to the Type Ic Supernova 2012fh Open
Current explanations of the mass-loss mechanism for stripped-envelope supernovae remain divided between single and binary progenitor systems. Here we obtain deep ultraviolet (UV) imaging with the Hubble Space Telescope (HST) of the Type Ic…
View article: The power of binaries on stripped-envelope supernovae across metallicity: uniform progenitor parameter space and persistently low ejecta masses, but subtype diversity
The power of binaries on stripped-envelope supernovae across metallicity: uniform progenitor parameter space and persistently low ejecta masses, but subtype diversity Open
Stripped-envelope supernovae (SESNe) originate from massive stars that lose their envelopes through binary interactions or stellar winds. The connection between SESN subtypes and their progenitors remains poorly understood, as does the inf…
View article: The Demographics of Binary Companions to Stripped-Envelope Supernovae: Confronting Observations with Population Synthesis
The Demographics of Binary Companions to Stripped-Envelope Supernovae: Confronting Observations with Population Synthesis Open
Stripped-envelope supernovae (SESNe) mark the deaths of massive stars without hydrogen-rich envelopes. Most SESNe likely originate from binary systems where a companion stripped the progenitor of its envelope. Years of HST imaging of nearb…
View article: A new long gamma-ray burst formation pathway at solar metallicity
A new long gamma-ray burst formation pathway at solar metallicity Open
Context. Long gamma-ray bursts (LGRBs) are generally observed in low-metallicity environments. However, 10% to 20% of LGRBs at redshift z < 2 are associated with near-solar to super-solar metallicity environments, remaining unexplained by …
View article: Forming Double Neutron Stars using Detailed Binary Evolution Models with POSYDON: Comparison to the Galactic Systems
Forming Double Neutron Stars using Detailed Binary Evolution Models with POSYDON: Comparison to the Galactic Systems Open
With over two dozen detections in the Milky Way, double neutron stars (DNSs) provide a unique window into massive binary evolution. We use the POSYDON binary population synthesis code to model DNS populations and compare them to the observ…
View article: POSYDON Data Release 2
POSYDON Data Release 2 Open
The POSYDON Data Release 2, corresponding to the binary population synthesis code POSYDON version 2.0.0. Refer to https://posydon.org/ for a detailed description, download scripts, and installation instructions. This dataset includes the d…
View article: Interacting binaries as a significant progenitor channel for Type II-P supernovae
Interacting binaries as a significant progenitor channel for Type II-P supernovae Open
Type II-P supernovae (SNe II-P) are the most common class of core-collapse SNe in the local Universe. While their progenitors have long been assumed to follow single-star evolution, recent theoretical studies suggest that 30–50% of all SNe…
View article: Evidence for a Catastrophically Disrupted Open Cluster
Evidence for a Catastrophically Disrupted Open Cluster Open
Of the many discoveries uncovered by the Gaia astrometric mission, some of the most exciting are related to nearby dispersed stellar structures. We analyze one such structure in the Milky Way disk, OCSN-49, a coeval stellar stream with 257…
View article: Irregularly Sampled Time Series Interpolation for Detailed Binary Evolution Simulations
Irregularly Sampled Time Series Interpolation for Detailed Binary Evolution Simulations Open
Modeling of large populations of binary stellar systems is an integral part of many areas of astrophysics, from radio pulsars and supernovae to X-ray binaries, gamma-ray bursts, and gravitational-wave mergers. Binary population synthesis c…
View article: The effect of mass loss in models of red supergiants in the Small Magellanic Cloud
The effect of mass loss in models of red supergiants in the Small Magellanic Cloud Open
The rate and mechanism of mass loss of red supergiants (RSGs) remain poorly understood. Motivated by a new empirical mass-loss rate prescription based on the largest and most complete sample of RSGs in the Small Magellanic Cloud (SMC), we …
View article: Mass Transfer in Eccentric Orbits with Self-consistent Stellar Evolution
Mass Transfer in Eccentric Orbits with Self-consistent Stellar Evolution Open
We investigate Roche lobe overflow mass transfer (MT) in eccentric binary systems between stars and compact objects (COs), modeling the coupled evolution of both the star and the orbit due to eccentric MT (eMT) in a self-consistent framewo…
View article: Challenges in Forming Millisecond Pulsar–Black Holes from Isolated Binaries
Challenges in Forming Millisecond Pulsar–Black Holes from Isolated Binaries Open
Binaries harboring a millisecond pulsar (MSP) and a black hole (BH) are a key observing target for current and upcoming pulsar surveys. We model the formation and evolution of such binaries in isolation at solar metallicity using the next-…
View article: A new long gamma-ray burst formation pathway at solar metallicity
A new long gamma-ray burst formation pathway at solar metallicity Open
Context. Long gamma-ray bursts (LGRBs) are generally observed in low-metallicity environments. However, 10 to 20 per cent of LGRBs at redshift $z<2$ are associated with near-solar to super-solar metallicity environments, remaining unexplai…
View article: Emulators for stellar profiles in binary population modeling
Emulators for stellar profiles in binary population modeling Open
View article: Not Just Winds: Why Models Find That Binary Black Hole Formation Is Metallicity-dependent, while Binary Neutron Star Formation Is Not
Not Just Winds: Why Models Find That Binary Black Hole Formation Is Metallicity-dependent, while Binary Neutron Star Formation Is Not Open
Both detailed and rapid population studies alike predict that binary black hole (BHBH) formation is orders of magnitude more efficient at low metallicity than high metallicity, while binary neutron star (NSNS) formation remains mostly flat…
View article: A binary merger product as the direct progenitor of a Type II-P supernova
A binary merger product as the direct progenitor of a Type II-P supernova Open
Type II-P supernovae (SNe II-P) are the most common type of core-collapse SNe in the local Universe. The progenitors of SNe II-P have been directly observed in fortuitous pre-explosion images with effective temperatures and luminosities co…
View article: Challenges in Forming Millisecond Pulsar-Black Holes from Isolated Binaries
Challenges in Forming Millisecond Pulsar-Black Holes from Isolated Binaries Open
Binaries harboring a millisecond pulsar (MSP) and a black hole (BH) are a key observing target for current and upcoming pulsar surveys. We model the formation and evolution of such binaries in isolation at solar metallicity using the next-…
View article: An Empirical Framework Characterizing the Metallicity and Star-formation History Dependence of X-Ray Binary Population Formation and Emission in Galaxies
An Empirical Framework Characterizing the Metallicity and Star-formation History Dependence of X-Ray Binary Population Formation and Emission in Galaxies Open
We present a new empirical framework modeling the metallicity and star formation history (SFH) dependence of X-ray luminous ( L ≳ 10 36 erg s −1 ) point-source population X-ray luminosity functions (XLFs) in normal galaxies. We expect that…
View article: Formation of wind-fed black hole high-mass X-ray binaries: The role of Roche-lobe-overflow post black hole formation
Formation of wind-fed black hole high-mass X-ray binaries: The role of Roche-lobe-overflow post black hole formation Open
The three dynamically confirmed wind-fed black hole high-mass X-ray binaries (BH-HMXBs) are suggested to all contain a highly spinning black hole (BH). However, based on the theories of efficient angular momentum transport inside the stars…
View article: Mass Transfer in Eccentric Orbits with Self-consistent Stellar Evolution
Mass Transfer in Eccentric Orbits with Self-consistent Stellar Evolution Open
We investigate Roche lobe overflow mass transfer (MT) in eccentric binary systems between stars and compact objects (COs), modeling the coupled evolution of both the star and the orbit due to eccentric MT (eMT) in a self-consistent framewo…
View article: The formation of black holes in non-interacting isolated binaries
The formation of black holes in non-interacting isolated binaries Open
Context. The black holes discovered using Gaia , especially Gaia BH1 and BH2, have low-mass companions of solar-like metallicity in wide orbits. For standard formation channels of isolated binary evolution that include interactions, this e…
View article: Irregularly Sampled Time Series Interpolation for Detailed Binary Evolution Simulations
Irregularly Sampled Time Series Interpolation for Detailed Binary Evolution Simulations Open
Modeling of large populations of binary stellar systems is an intergral part of a many areas of astrophysics, from radio pulsars and supernovae to X-ray binaries, gamma-ray bursts, and gravitational-wave mergers. Binary population synthesi…
View article: Mass-gap Black Holes in Coalescing Neutron Star Black Hole Binaries
Mass-gap Black Holes in Coalescing Neutron Star Black Hole Binaries Open
The existence of a mass gap of $3-5\,M_{\odot}$ between the heaviest neutron stars (NSs) and the lightest black holes (BHs), inferred from the BH mass distribution in low mass X-ray binaries (LMXBs), has been suggested for decades. The rec…
View article: An Empirical Framework Characterizing the Metallicity and Star-Formation History Dependence of X-ray Binary Population Formation and Emission in Galaxies
An Empirical Framework Characterizing the Metallicity and Star-Formation History Dependence of X-ray Binary Population Formation and Emission in Galaxies Open
We present a new empirical framework modeling the metallicity and star-formation history (SFH) dependence of X-ray luminous ($L > 10^{36}$ ergs s$^{-1}$) point-source population luminosity functions (XLFs) in normal galaxies. We expect the…
View article: The Formation of Black Holes in Non-interacting, Isolated Binaries. Gaia Black Holes as Calibrators of Stellar Winds From Massive Stars
The Formation of Black Holes in Non-interacting, Isolated Binaries. Gaia Black Holes as Calibrators of Stellar Winds From Massive Stars Open
Context. The black holes discovered using Gaia, especially Gaia BH1 and BH2, have low mass companions of solar-like metallicity in wide orbits. For standard isolated binary evolution formation channels including interactions such an extrem…
View article: Theia 456: Tidally Shredding an Open Cluster
Theia 456: Tidally Shredding an Open Cluster Open
The application of clustering algorithms to the Gaia astrometric catalog has revolutionized our census of stellar populations in the milky Way, including the discovery of many new dispersed structures. We focus on one such structure, Theia…
View article: The effect of mass loss in models of red supergiants in the Small Magellanic Cloud
The effect of mass loss in models of red supergiants in the Small Magellanic Cloud Open
The rate and mechanism of mass loss of red supergiants (RSGs) remain poorly understood, especially at low metallicities. Motivated by the new empirical prescription by Yang et al. 2023, based on the largest and most complete sample in the …