5 papers
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, MatÃas 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, Valentà 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, MatÃas 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…