29 citations · 88 across the 18 of their papers we have counts for
19 papers
Very High-Energy GRB Afterglow Fits with Neural-Network Emulation and Bayesian inference
Edilberto Aguilar-Ruiz, Jessica Saldívar Talavera, Ramandeep Gill +1
The very high-energy ( GeV) afterglow emission in gamma-ray bursts (GRBs) can be explained by synchrotron self-Compton (SSC). Modeling this emission accurately requires fu…
EP260119a: A High-Redshift Gamma-Ray Quiet Fast X-ray Transient Probing a Potentially Hidden Population of Relativistic Explosions
Camila Angulo-Valdez, Asuka Kuwata, Edilberto Aguilar-Ruiz +41
Gamma-ray quiet fast X-ray transients (FXTs) provide a new approach for studying relativistic explosions that evade traditional gamma-ray triggers. In this work, we present multi-w…
Failed jet breakout in the metal-poor broad-lined type Ic supernova 2026gzf
Antonio Martin-Carrillo, Christina C. Thöne, James K. Leung +103
A long-standing question in the death of massive stars is the role of relativistic jets. While many gamma-ray bursts and some fast X-ray transients seem to be associated with broad…
GRB 260310A / SN 2026fgk: A Multi-Wavelength Study of a Nearby Underluminous Long GRB and SN with a Complex Afterglow
Ramandeep Gill, Rosa L. Becerra, Antonio de Ugarte Postigo +54
We present a comprehensive multi-wavelength study of GRB 260310A / SN 2026fgk, a nearby (), long-duration gamma-ray burst (GRB) with an exceptionally underluminous prompt…
Hadronic Clues in Quasars Caught by Fermi-LAT
Antonio Galván, Nissim Fraija, Edilberto Aguilar-Ruiz +3
This work explores whether hadronic processes could be responsible for the high-energy emission seen in quasars identified by the Large Area Telescope (LAT) instrument aboard the F…
Synchrotron Self-Compton Model of TeV Afterglows in Gamma-Ray Bursts
Edilberto Aguilar-Ruiz, Ramandeep Gill, Paz Beniamini +1
The detection of a very-high-energy TeV spectral component in the afterglow emission of gamma-ray bursts (GRBs) has opened a new probe into the energetics of ultra-relativistic bla…
Microphysical Parameter Variation in GRB Stratified Afterglows and Closure Relations: from sub-GeV to TeV Observations
Nissim Fraija, Maria G. Dainotti, Boris Betancourt Kamenetskaia +2
Gamma-ray bursts (GRBs) are one of the most exciting sources that offer valuable opportunities for investigating the evolution of energy fraction given to magnetic fields and parti…
An Explanation of GRB Fermi-LAT Flares and High-Energy Photons in Stratified Afterglows
Nissim Fraija, Boris Betancourt Kamenetskaia, Antonio Galván-Gámez +6
The second {\itshape Fermi}/LAT gamma-ray burst (GRB) catalog (2FLGC) spanning the first decade of operations by the LAT collaboration was recently released. The closure relations…
The unprecedented flaring activities around Mrk 421 in 2012 and 2013: The test for neutrino and UHECR event connection
Nissim Fraija, Edilberto Aguilar-Ruiz, Antonio Galván +2
Since its mission, Fermi Collaboration reported the highest flux observed during July - September 2012 for the BL Lac Markarian 421 (Mrk 421). The integrated flux was eight times g…
Study of blazars detected by Fermi-LAT as high-energy neutrino sources
Antonio Galván, Nissim Fraija, Edilberto Aguilar-Ruiz +2
Besides the neutrino source detected by IceCube, NGC 1068, the association of the IceCube-170922A neutrino with the blazar in a flaring state among several wavelengths (from radio…
Evidence of a lepto-hadronic two-zone emission in flare states
E. Aguilar-Ruiz, N. Fraija, A. Galván-G ámez
The BL Lac Markarian 501 exhibited two flaring activities in the very-high-energy (VHE) band in May 2009. The lack of correlation between X-rays and TeV gamma-rays without increasi…
High-Energy Neutrino Fluxes from Hard-TeV BL Lacs
E. Aguilar-Ruiz, N. Fraija, A. Galván-Gámez
Blazars have been pointed out as promising high-energy (HE) neutrinos sources, although the mechanism is still under debate. The blazars with a hard-TeV spectrum, which leptonic mo…
A Two-Zone Model as origin of Hard TeV Spectrum in Extreme BL Lacs
E. Aguilar-Ruiz, N. Fraija, A. Galvan-Gamez +1
The emission of the so-called extreme BL Lacs poses challenges to the particle acceleration models. The hardness of their spectrum, , in the high-energy band demands un…
Testing high energy neutrino emission from the Fermi Gamma-ray Space Telescope Large Area Telescope (4LAC) sources
Antonio Galván, Nissim Fraija, Edilberto Aguilar-Ruiz +3
The detection of the high-energy neutrino IC-170922A in spatial (within the error region) and temporal flare activity correlation with the blazar TXS 0506+056 allowed these objects…
Cosmic rays, neutrinos and GeV-TeV gamma rays from Starburst Galaxy NGC 4945
E. Aguilar-Ruiz, N. Fraija, Jagdish C. Joshi +2
The detection of high-energy astrophysical neutrinos and ultra-high-energy cosmic rays (UHECRs) provides a new way to explore sources of cosmic rays. One of the highest energy neut…
Electron-positron pair plasma in TXS 0506+056 and the "neutrino flare" in 2014-2015
Nissim Fraija, Edilberto Aguilar-Ruiz, Antonio Galván-Gámez
The detection of a long flaring activity from blazar TXS 0506+056 in temporal and spatial coincidence with the energetic neutrino IceCube-170922A provided evidence about the photo-…
Study of PeV neutrinos around dwarf galaxies near giant lobes of Centaurus A
E. Aguilar-Ruiz, N. Fraija, A. Galván-Gámez +2
The origin of recently discovered PeV neutrinos is an unsolved problem. In this work we consider a hadronic scenario to produce PeV neutrinos from a region around giant lobes of Ce…
Study of the PeV Neutrino, -rays and UHECRs around The Lobes of Centaurus A
N. Fraija, E. Aguilar-Ruiz, A. Galván-Gámez +2
Pierre Auger observatory reported the distribution of arrival directions of the highest energy cosmic rays. These events were collected in 10 years of operations with declinations…
Modeling the Spectral Energy Distribution of the radio galaxy IC310
N. Fraija, A. Marinelli, A. Galvan-Gamez +1
The radio galaxy IC310 located in the Perseus Cluster is one of the brightest objects in the radio and X-ray bands, and one of the closest active galactic nuclei observed in very-h…