output
19972026
most citedThe Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III

2.5k citations

Showing 2022 · astro-ph.HEShow all

11 papers · 2 filters

astro-ph.HE2022★ 7 cited

Multi-band Optical Variability of the TeV Blazar PG 1553+113 in 2019

Vinit Dhiman, Alok C. Gupta, Sofia O. Kurtanidze +20

We report the flux and spectral variability of PG 1553+113 on intra-night (IDV) to short-term timescales using BVRI data collected over 91 nights from 28 February to 8 November 201…

astro-ph.HE2022★ 32 cited

Multi-messenger characterization of Mrk 501 during historically low X-ray and -ray activity

MAGIC collaboration, H. Abe, S. Abe +322

We study the broadband emission of Mrk 501 using multi-wavelength observations from 2017 to 2020 performed with a multitude of instruments, involving, among others, MAGIC, Fermi-LA…

astro-ph.HE2022★ 15 cited

Pulsar radio emission mechanism II. On the origin of relativistic Langmuir solitons in pulsar plasma

Sk. Minhajur Rahaman, Dipanjan Mitra, George I. Melikidze +1

Observations suggest that coherent radio emission from pulsars is excited in a dense pulsar plasma by curvature radiation from charge bunches. Numerous studies propose that these c…

astro-ph.HE2022★ 1 cited

On the fraction of particles involved in magneto-centrifugally generated ultra-high energy electrons in the Crab pulsar

Z. N. Osmanov, S. M. Mahajan

The earthward journey of ultra high energy electrons ( TeV) produced in the Pulsar atmosphere by Landau damping of magneto-centrifugally excited Langmuir waves (drawing e…

astro-ph.HE2022★ 18 cited

Two Dimensional Configuration and Temporal Evolution of Sparking discharges in Pulsars

Rahul Basu, George I. Melikidze, Dipanjan Mitra

We have investigated the evolution of a system of sparking discharges in the inner acceleration region (IAR) above the pulsar polar cap. The surface of the polar cap is heated to t…

astro-ph.HE2022★ 2 cited

Resonant energization of particles by radio AGN

S. M. Mahajan, Z. N. Osmanov

A new mechanism of particle acceleration, based on the resonant interaction of a classical electromagnetic wave (EM) with a quantum wave (associated with a relativistic particle),…

astro-ph.HE2022★ 20 cited

MRI turbulence in accretion discs at large magnetic Prandtl numbers

Loren E. Held, George Mamatsashvili

The effect of large magnetic Prandtl number (the ratio of viscosity to resistivity) on the turbulent transport and energetics of the magnetorotational instability (MRI)…

astro-ph.HE2022★ 12 cited

And then they were two: detection of non-thermal radio emission from the bow shocks of two runaway stars

M. Moutzouri, J. Mackey, C. Carrasco González +7

Winds from massive stars have recently been deemed promising sites for investigating relativistic particle acceleration. Particularly, the resulting bow shock from the interaction…

astro-ph.HE2022★ 1 cited

Externally-driven plasma models as candidates for pulsar radio emission

Sk. Minhajur Rahaman, Dipanjan Mitra, George I. Melikidze

Coherent radio emission from pulsars originates from excited plasma waves in an ultra-relativistic and strongly magnetized electron-positron pair plasma streaming along the open ma…

astro-ph.HE2022★ 17 cited

GRANDMA Observations of ZTF/Fink Transients during Summer 2021

V. Aivazyan, M. Almualla, S. Antier +80

We present our follow-up observations with GRANDMA of transient sources revealed by the Zwicky Transient Facility (ZTF). Over a period of six months, all ZTF triggers were examined…

astro-ph.HE2022★ 11 cited

Spectral variation across Pulsar Profile due to Coherent Curvature Radiation

Rahul Basu, Dipanjan Mitra, George I. Melikidze

The pulsar profile is characterised by two distinct emission components, the core and the cone. The standard model of a pulsar radio emission beam originating from dipolar magnetic…