1.2k citations · 3.7k across the 55 of their papers we have counts for
56 papers
Microlensify: a Transformer Based Machine Learning Classifier for Microlensing Events Trained on TESS Light Curves
Atousa Kalantari, Somayeh Khakpash, Sedighe Sajadian +3
Microlensing can reveal populations of faint compact objects that are otherwise difficult to detect. Depending on their design, all-sky surveys have the potential to search for the…
A new Chandra look at the globular cluster NGC 6540 and its peculiar X-ray flaring source
A. Sacchi, S. Mereghetti, R. Di Stefano +4
We report the results of a deep ( ks) Chandra exposure of the globular cluster NGC 6540, obtained by combining three observations carried out in 2023-2024 to investigate…
Hypersoft X-ray Sources as a Low-Energy Class of Luminous Cosmic Emitters
Mustafa Muhibullah, Jimmy A. Irwin, R. Di Stefano
X-ray binaries, powered by accretion onto black holes, neutron stars, or white dwarfs from companion stars, are among the brightest non-explosive beacons in galaxies, outshining th…
The significant contribution of supersoft X-ray Sources to the nebular HeII line emission
Dian P. Triani, Rosanne Di Stefano, Tiger Yu-yang Hsiao +1
Nebular spectral lines provide insight into the properties of the interstellar medium (ISM) and the ionizing radiation within galaxies. The presence of high-energy ionization lines…
A Possible Third Body in the X-Ray System GRS 1747-312 and Models with Higher-Order Multiplicity
Caleb Painter, Rosanne Di Stefano, Vinay L. Kashyap +7
GRS 1747-312 is a bright Low-Mass X-ray Binary in the globular cluster Terzan 6, located at a distance of 9.5 kpc from the Earth. It exhibits regular outbursts approximately every…
Microlensing Discovery and Characterization Efficiency in the Vera C. Rubin Legacy Survey of Space and Time
Natasha S. Abrams, Markus P. G. Hundertmark, Somayeh Khakpash +11
The Vera C. Rubin Legacy Survey of Space and Time will discover thousands of microlensing events across the Milky Way Galaxy, allowing for the study of populations of exoplanets, s…
LSST Survey Strategy in the Galactic Plane and Magellanic Clouds
R. A. Street, X. Li, S. Khakpash +16
Galactic science encompasses a wide range of subjects in the study of the Milky Way and Magellanic Clouds, from Young Stellar Objects to X-ray Binaries. Mapping these populations,…
White dwarf -- red giant star binaries as Type Ia supernova progenitors: with and without magnetic confinement
Iminhaji Ablimit, Philipp Podsiadlowski, Rosanne Di Stefano +2
Various white-dwarf (WD) binary scenarios have been proposed trying to understand the nature and the diversity of Type Ia supernovae (SNe Ia). In this work, we study the evolution…
SCATTER: A New Common Envelope Formalism
Rosanne Di Stefano, Matthias U. Kruckow, Yan Gao +2
One of the most mysterious astrophysical states is the common envelope (CE) phase of binary evolution, in which two stars are enshrouded by the envelope shed by one of them. Intera…
Rubin Observatory LSST Transients and Variable Stars Roadmap
Kelly M. Hambleton, Federica B. Bianco, Rachel Street +79
The Vera C. Rubin Legacy Survey of Space and Time holds the potential to revolutionize time domain astrophysics, reaching completely unexplored areas of the Universe and mapping va…
Searching for Exoplanets Around X-Ray Binaries with Accreting White Dwarfs, Neutron Stars, and Black Holes
Nia Imara, Rosanne Di Stefano
We recommend that the search for exoplanets around binary stars be extended to include X-ray binaries in which the accretor is a white dwarf, neutron star, or black hole. We presen…
Mind your Ps and Qs: the Interrelation between Period (P) and Mass-ratio (Q) Distributions of Binary Stars
Maxwell Moe, Rosanne Di Stefano
We compile observations of early-type binaries identified via spectroscopy, eclipses, long-baseline interferometry, adaptive optics, common proper motion, etc. Each observational t…
Globular Clusters as Cradles of Life and Advanced Civilizations
R. Di Stefano, A. Ray
Globular clusters are ancient stellar populations with no star formation or core-collapse supernovae. Several lines of evidence suggest that globular clusters are rich in planets.…
Relativistic baryonic jets from an ultraluminous supersoft X-ray source
Ji-Feng Liu, Yu Bai, Song Wang +10
The formation of relativistic jets by an accreting compact object is one of the fundamental mysteries of astrophysics. While the theory is poorly understood, observations of relati…
Death by Dynamics: Planetoid-Induced Explosions on White Dwarfs
Rosanne Di Stefano, Robert Fisher, James Guillochon +1
At intervals as short as ten thousand years, each white dwarf (WD) passes within a solar radius of a planetoid, i.e., a comet, asteroid, or planet. Gravitational tidal forces tear…
Early-type Eclipsing Binaries with Intermediate Orbital Periods
Maxwell Moe, Rosanne Di Stefano
We analyze 221 eclipsing binaries (EBs) in the Large Magellanic Cloud with B-type main-sequence (MS) primaries ( 4 - 14 M) and orbital periods = 20 - 5…
Orbital Motion During Gravitational Lensing Events
Rosanne Di Stefano, Ann Esin
Gravitational lensing events provide unique opportunities to discover and study planetary systems and binaries. Here we build on previous work to explore the role that orbital moti…
A New Class of Nascent Eclipsing Binaries with Extreme Mass Ratios
Maxwell Moe, Rosanne Di Stefano
Early B-type main-sequence (MS) stars (M = 5-16 M) with closely orbiting low-mass stellar companions (q = M/M < 0.25) can evolve to produce Type Ia supernovae…
The Close Binary Properties of Massive Stars in the Milky Way and Low-Metallicity Magellanic Clouds
Maxwell Moe, Rosanne Di Stefano
In order to understand the rates and properties of Type Ia and Type Ib/c supernovae, X-ray binaries, gravitational wave sources, and gamma ray bursts as a function of galactic envi…
Results from Long-Term Optical Monitoring of the Soft X-Ray Transient SAX J1810.8-2609
Ling Zhu, Rosanne DiStefano, Lukasz Wyrzykowski
In this paper we report the long-term optical observation of the faint soft X-ray transient SAX J1810.8-2609 from OGLE and MOA. We have focused on the 2007 outburst, and also did t…
The absence of radio emission from the globular cluster G1
J. C. A. Miller-Jones, J. M. Wrobel, G. R. Sivakoff +9
The detections of both X-ray and radio emission from the cluster G1 in M31 have provided strong support for existing dynamical evidence for an intermediate mass black hole (IMBH) o…
The Discovery of an X-ray/UV Stellar Flare from the Late-K/Early-M Dwarf LMC 335
B. T. H. Tsang, C. S. J. Pun, R. Di Stefano +2
We report the discovery of an X-ray/UV stellar flare from the source LMC 335, captured by XMM-Newton in the field of the Large Magellanic Cloud. The flare event was recorded contin…
The Absence of Ex-Companions in Type Ia Supernova Remnants
R. Di Stefano, Mukremin Kilic
Type Ia supernovae (SNe Ia) play important roles in our study of the expansion and acceleration of the Universe, but because we do not know the exact nature or natures of the proge…
Searching for Planets During Predicted Mesolensing Events: II. PLAN-IT: An Observing Program and its Application to VB 10
Rosanne Di Stefano, James Matthews, Sebastien Lepine
The successful prediction of lensing events is a new and exciting enterprise that provides opportunities to discover and study planetary systems. The companion paper investigates t…