54 citations · 65 across the 7 of their papers we have counts for
9 papers
Revealing Optically Hidden Companions to Intermediate-Mass Stripped Stars with Radial Velocities
Alexander Laroche, Maria R. Drout, Ylva Götberg +7
The recent discovery of a population of intermediate-mass helium stars (2-8 ) in the Magellanic Clouds has opened a new observational window into massive binary evol…
Unresolved Binary Systems in the Rubin Era I: An Autoencoder Framework for Binary Identification Applied to 47 Tucanae
Tobias Géron, Alexander Laroche, Joshua S. Speagle +1
Binary systems are extremely common and influence many areas of astrophysics, such as stellar evolution and cluster dynamics. In this work, we introduce flexAE, a framework that co…
A Framework for Linking Pre- and Post-Common Envelope Binary Properties with Star Clusters: The First Demonstration with a Massive White Dwarf+M Dwarf Binary in Alessi 12
Steffani M. Grondin, Maria R. Drout, Jason Nordhaus +12
Common envelope (CE) evolution is a critical phase in the lives of binary stars, producing close binaries that are progenitors of type Ia supernovae and gravitational wave sources.…
Ongoing and Post-Mass-Transfer Binaries: A Living Catalog and Unified Review of Binary Mass Transfer Products
Lieke A. C. van Son, Natsuko Yamaguchi, Pranav Nagarajan +6
Mass transfer is arguably the most defining interaction in binary stellar systems, yet many aspects of its physics remain poorly understood, from stability to endpoints and observa…
The ejection and detectability of high- and hyper-velocity stars by compact object binaries in globular clusters
Fraser A. Evans, Steffani M. Grondin, Claire S. Ye +3
The dense cores of Milky Way globular clusters (GCs) play host to a variety of dynamical encounters between stellar objects, which can accelerate stars to velocities high enough to…
The Stripped-Star Ultraviolet Magellanic Cloud Survey (SUMS): The UV Photometric Catalog and Stripped Star Candidate Selection
Bethany Ludwig, Maria R. Drout, Ylva Gotberg +2
Most massive stars will interact with a binary companion during their lifetimes. These interactions can remove the hydrogen-rich envelope, producing intermediate-mass (2-8 M$…
Closing the stellar labels gap: Stellar label independent evidence for [] information in Gaia BP/RP spectra
Alexander Laroche, Joshua S. Speagle
Data-driven models for stellar spectra which depend on stellar labels suffer from label systematics which decrease model performance: the "stellar labels gap". To close the stellar…
Closing the stellar labels gap: An unsupervised, generative model for BP/RP spectra
Alexander Laroche, Joshua S. Speagle
The recent release of 220+ million BP/RP spectra in DR3 presents an opportunity to apply deep learning models to an unprecedented number of stellar spectra, at extr…
Quantum fluctuations masquerade as halos: Bounds on ultra-light dark matter from quadruply-imaged quasars
Alexander Laroche, Daniel Gilman, Xinyu Li +2
Ultra-light dark matter (ULDM) refers to a class of theories, including ultra-light axions, in which particles with mass comprise a significant fraction…