18 citations · 45 across the 5 of their papers we have counts for
6 papers
Intermediate-mass runaway and hypervelocity star candidates in DESI DR1
Aakash Bhat, Matti Dorsch, Ulrich Heber +2
Runaway stars ejected from the Galactic disc span a range of velocities, with two extreme regimes of particular interest. Hyper-runaway stars reach velocities approaching the local…
A slowly pulsating run-away B star at high Galactic latitude ejected from a spiral arm
Ulrich Heber, Maximilian Halenke, Aakash Bhat +1
We report the discovery of the young B6V run-away star LAMOST J083323.18+430825.4, 2.5\,kpc above the Galactic plane. Its atmospheric parameters and chemical composition are determ…
Multi-class classification of Fermi-LAT sources with hierarchical class definition
Dmitry V. Malyshev, Aakash Bhat
In the paper we develop multi-class classification of Fermi-LAT gamma-ray sources using machine learning with hierarchical determination of classes. One of the main challenges in t…
Towards probabilistic multiclass classification of gamma-ray sources
Dmitry Malyshev, Aakash Bhat
Machine learning algorithms have been used to determine probabilistic classifications of unassociated sources. Often classification into two large classes, such as Galactic and ext…
The origin of early-type runaway stars from open clusters
Aakash Bhat, Andreas Irrgang, Ulrich Heber
Runaway stars are ejected from their place of birth in the Galactic disk, with some young B-type runaways found several tens of kiloparsecs from the plane traveling at speeds beyon…
Machine learning methods for constructing probabilistic Fermi-LAT catalogs
Aakash Bhat, Dmitry Malyshev
Classification of sources is one of the most important tasks in astronomy. Sources detected in one wavelength band, for example using gamma rays, may have several possible associat…