activity
20082025
most citedMultifrequency monitoring of the blazar 0716+714 during the GASP-WEBT-AGILE campaign of 2007

125 citations · 924 across the 41 of their papers we have counts for

collaborators
Showing 2022Show all

12 papers · 1 filter

astro-ph.HE2022★ 66 cited

Constraining the sources of ultra-high-energy cosmic rays across and above the ankle with the spectrum and composition data measured at the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +365

In this work we present the interpretation of the energy spectrum and mass composition data as measured by the Pierre Auger Collaboration above eV. We use an ast…

astro-ph.HE2022★ 14 cited

Exploring Short-Term Optical Variability of Blazars Using

Vivek Reddy Pininti, Gopal Bhatta, Sagarika Paul +4

We present a first systematic time series study of a sample of blazars observed by the Transiting Exoplanet Survey Satellite spacecraft. By cross matching the posit…

astro-ph.HE2022★ 6 cited

Blazar jets as possible sources of ultra-high energy photons: a short review

Gopal Bhatta

In this work, I present a qualitative discussion on the prospect of production of ultra-high photons in blazars. The sources are a subclass of active galactic nuclei which host sup…

astro-ph.HE2022

Search for photons above 10 eV with the surface detector of the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +365

We use the surface detector of the Pierre Auger Observatory to search for air showers initiated by photons with an energy above eV. Photons in the zenith angle range from…

astro-ph.HE2022

Cosmological implications of photon-flux upper limits at ultra-high energies in scenarios of Planckian-interacting massive particles for dark matter

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +374

Using the data of the Pierre Auger Observatory, we report on a search for signatures that would be suggestive of super-heavy particles decaying in the Galactic halo. From the lack…

astro-ph.HE2022

Investigating Hadronic Interactions at Ultra-High Energies with the Pierre Auger Observatory

Isabel Goos, :, P. Abreu +374

The development of an extensive air shower depends not only on the nature of the primary ultra-high-energy cosmic ray but also on the properties of the hadronic interactions. For e…