20 papers
Search for gamma-ray spectral lines from dark matter annihilation with the H.E.S.S. Inner Galaxy Survey
H. E. S. S. Collaboration, F. Aharonian, H. Ashkar +115
Spectral gamma-ray line features are expected as key signatures from dark matter (DM) annihilations of TeV-scale particle DM. Observations of the Galactic Centre with atmospheric C…
Binary White Dwarfs as Gravitational Wave Sources for LISA
Sreeta Roy, Surajit Kalita, Tomasz Bulik +1
Gravitational waves (GWs) have proven to be a powerful probe of compact binary populations. In the millihertz frequency range accessible to Laser Interferometer Space Antenna LISA,…
Recovering cosmological parameters from the mock gravitational wave data of the Einstein Telescope
Pinaki Roy, Tomasz Bulik
Einstein Telescope (ET) is a third-generation gravitational wave (GW) detector with tenfold better sensitivity compared to the advanced LIGO detectors. It will be capable of observ…
Remnant recoil and host environments of GWTC-4.0 binary black-hole mergers
Joan Llobera-Querol, Eleanor Hamilton, Neha Singh +8
Determining the astrophysical origin of binary black holes and whether merger remnants are retained in their birth environments is essential for understanding hierarchical mergers…
Scrutinizing the 2020 multiwavelength outburst of PKS 0903-57 through observations with H.E.S.S
A. Acharyya, F. Aharonian, F. Ait Benkhali +138
The blazar PKS 0903-57 has recently been classified as a flat spectrum radio quasar at a redshift of . In March and April 2020, Fermi-LAT and AGILE reported tremendous ac…
Identifying highly magnetized white dwarfs: A dimensionality reduction framework for estimating magnetic fields
Surajit Kalita, Akhil Uniyal, Tomasz Bulik +1
Magnetic fields play a crucial role in compact object physics, particularly in white dwarfs (WDs), where high densities can sustain strong magnetic fields. Observations have reveal…