activity
20172023
most citedAuthenticating the Presence of a Relativistic Massive Black Hole Binary in OJ 287 Using its General Relativity Centenary Flare: Improved Orbital Parameters

124 citations · 423 across the 12 of their papers we have counts for

collaborators

13 papers

astro-ph.HE2023★ 1 cited

Ready for O4 II: GRANDMA Observations of Swift GRBs during eight-weeks of Spring 2022

I. Tosta e Melo, J. -G. Ducoin, Z. Vidadi +106

We present a campaign designed to train the GRANDMA network and its infrastructure to follow up on transient alerts and detect their early afterglows. In preparation for O4 II camp…

astro-ph.HE2023★ 1 cited

Multi-band analyses of the bright GRB 230812B and the associated SN2023pel

T. Hussenot-Desenonges, T. Wouters, N. Guessoum +109

GRB~230812B is a bright and relatively nearby () long gamma-ray burst (GRB) that has generated significant interest in the community and has thus been observed over the en…

astro-ph.HE2023★ 1 cited

GRANDMA and HXMT Observations of GRB 221009A -- the Standard-Luminosity Afterglow of a Hyper-Luminous Gamma-Ray Burst

D. A. Kann, S. Agayeva, V. Aivazyan +113

GRB 221009A is the brightest Gamma-Ray Burst (GRB) detected in more than 50 years of study. In this paper, we present observations in the X-ray and optical domains after the GRB ob…

astro-ph.IM2022

The GRANDMA network in preparation for the fourth gravitational-wave observing run

S. Agayeva, V. Aivazyan, S. Alishov +98

GRANDMA is a world-wide collaboration with the primary scientific goal of studying gravitational-wave sources, discovering their electromagnetic counterparts and characterizing the…

astro-ph.GA2022★ 5 cited

Host galaxy magnitude of OJ 287 from its colours at minimum light

Mauri J. Valtonen, Lankeswar Dey, S. Zola +54

OJ 287 is a BL Lacertae type quasar in which the active galactic nucleus (AGN) outshines the host galaxy by an order of magnitude. The only exception to this may be at minimum ligh…

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…