6 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…