output
19922026
most citedNeutrino Masses and Leptogenesis with Heavy Higgs Triplets

518 citations

Showing astro-ph.HEShow all

108 papers · 1 filter

astro-ph.HE2026

Can We Find the Emission Mechanism Behind the Extremely Bright GRB 230812B?

Utkarsh Pathak, Sameer K. Patil, Hitesh Tanenia +23

GRB 230812B is a bright long-duration GRB with a luminous, long-lived afterglow and an AstroSat/CZTI polarization measurement during the prompt phase, enabling a joint study of its…

astro-ph.HE2026

Episode-wise spectro-polarimetry of GRB 220107A: Testing the hypothesis of evolving radiation mechanisms

Rahul Gupta, Rushikesh Sonawane, Shabnam Iyyani +17

We investigate the spectro-polarimetric properties of the long-duration GRB~220107A, which exhibited two distinct emission episodes separated by a 40 s quiescent gap, to test wheth…

astro-ph.HE2026

Discovery of burst oscillations in the newly discovered millisecond X-ray pulsar SRGA J144459.2604207

Manoj Mandal, Sachindra Naik

Burst oscillations during thermonuclear X-ray bursts are powered by thermonuclear energy on the neutron star (NS) surface and typically occur close to the spin frequency of the NS.…

astro-ph.HE2025★ 2 cited

The Indian Pulsar Timing Array Data Release 2: II. Customised Single-Pulsar Noise Analysis and Noise Budget

K. Nobleson, Churchil Dwivedi, Shantanu Desai +33

We present the results of customised single-pulsar noise analysis of 27 millisecond pulsars from the second data release of the Indian Pulsar Timing Array (InPTA-DR2). We model var…

astro-ph.HE2025★ 4 cited

A Hidden Pulse: Uncovering a New Timing Signal in Cygnus X-1 with AstroSat

Sandeep K. Rout, Federico Garcia, Mariano Mendez +4

The study of fast variability properties in X-ray binaries advances our understanding of the physical processes and geometric properties of the accretion flow around the compact ob…

astro-ph.HE2025

Polarization of reflected X-ray emission from the Sgr A molecular complex: multiple flares, multiple sources?

Ildar Khabibullin, Eugene Churazov, Riccardo Ferrazzoli +100

The extended X-ray emission observed in the direction of several molecular clouds in the central molecular zone of our Galaxy exhibits spectral and temporal properties consistent w…