16 citations · 22 across the 7 of their papers we have counts for
9 papers
The unidentified PeV source LHAASO J2108+5157: A microquasar remnant?
Josep Mart\'ı, Pedro L. Luque-Escamilla, Leandro Abaroa +4
Context. LHAASO~J2108+5157 is one of the most intriguing Galactic ultra-high-energy -ray sources. It is detected up to hundreds of TeV but lacks a clear counterpart at lower fre…
Broadband emission of microquasar remnants
Leandro Abaroa, Gustavo E. Romero, Valentí Bosch-Ramon
Microquasar remnants (MQRs), the long-lived cocoons inflated by extinct microquasar jets, have recently been proposed as hidden Galactic PeVatrons capable of producing ultra-high-e…
Neutrinos from super-Eddington Seyfert galaxies
Lucas M. Pasquevich, Gustavo E. Romero, Matías M. Reynoso
Multimessenger observations suggest that Seyfert galaxies are promising sources of high-energy neutrinos, but their dense inner environments can strongly suppress the emerging very…
Microquasar remnants as reservoirs of PeV cosmic rays
Leandro Abaroa, Gustavo E. Romero, Valentí Bosch-Ramón
The Large High Altitude Air Shower Observatory (LHAASO) has revealed a population of Galactic gamma-ray sources radiating beyond 100 TeV, but the nature of several of them is still…
Neutrinos from hidden ultraluminous X-ray sources in the Galaxy
Lucas M. Pasquevich, Gustavo E. Romero, Matías M. Reynoso
Ultraluminous X-ray sources (ULXs) are point-like sources that exhibit apparent X-ray luminosities exceeding the Eddington limit for stellar-mass compact objects. A widely accepted…
Super-Accreting Active Galactic Nuclei as Neutrino Sources
Gustavo E. Romero, Pablo Sotomayor
Active galactic nuclei (AGNs) often exhibit broad-line regions (BLRs), populated by high-velocity clouds in Keplerian orbits around the central supermassive black hole (SMBH) at su…
Electromagnetic signatures of black hole clusters in the center of super-Eddington galaxies
Leandro Abaroa, Gustavo E. Romero
Supermassive black holes (SMBHs) at the centers of active galaxies are fed by accretion disks that radiate from the infrared or optical to the X-ray bands. Several types of objects…
XMM-Newton observations of the extragalactic microquasar S26 and their implications for PeV cosmic rays
L. Abaroa, G. E. Romero, G. C. Mancuso +1
The extragalactic microquasar S26 has the most powerful jets observed in accreting binaries, with a kinetic luminosity of . According to…
Supercritical colliding wind binaries
L. Abaroa, G. E. Romero, P. Sotomayor
Context. Particle-accelerating colliding-wind binaries (PACWBs) are systems that are formed by two massive and hot stars and produce nonthermal (NT) radiation. The key elements of…