47 citations · 613 across the 74 of their papers we have counts for
74 papers
Constraining the redshift of BL Lac VER J0521+211
Sarira Sahu, B. Medina-Carrillo, G. Sánchez-Colón +1
Observation of several very high energy (VHE) flaring events of the BL Lac object VER J0521+211 were reported by the VERITAS and MAGIC collaborations between 2009 and 2014. The red…
Deciphering the ~18 TeV photons from GRB 221009A
Sarira Sahu, B. Medina-Carrillo, G. Sánchez-Colón +1
On 9 October, 2022, an extremely powerful gamma-ray burst, GRB 221009A, was detected by several instruments. Despite being obstructed by the Milky Way galaxy, its afterglow outburs…
Very high energy emission mechanism in the extreme blazar PGC 2402248
B. Medina-Carrillo, Sarira Sahu, G. Sánchez-Colón +1
Extreme high-frequency peaked BL Lacs (EHBLs) are characterized by a synchrotron peak frequency exceeding Hz and a second peak that can be in the energy range of few GeVs…
Photohadronic interpretation of the different incarnation of 1ES 2344+514
Sarira Sahu, Isabel Abigail Valadez Polanco, Subhash Rajpoot
Since its discovery in 1995, the high-energy peaked blazar 1ES 2344+514 has undergone several episodes of GeV-TeV flaring and has been observed in the multiwavelength by several ot…
Very High-energy Afterglow Emission of GRB 190829A: Evidence for Its Hadronic Origin?
Sarira Sahu, Isabel Abigail Valadez Polanco, Subhash Rajpoot
The detection of multi-TeV gamma-rays from the afterglow phase of GRB 190829A by High Energy Stereoscopic System (H.E.S.S.) telescope is an addition to the already existing list of…
Extreme HBL-like behavior of Markarian 421 and its two-zone photohadronic interpretation
Sarira Sahu, Carlos E. López Fortín, Isabel Abigail Valadez Polanco +1
Markarian 421 is the nearest high-energy peaked blazar and also is the first extragalactic source to be detected in multi-TeV -rays. It has been observed in multiwavelength for…