output
19932026
most citedThe Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission

4.1k citations

Showing 2022 · astro-ph.HEShow all

31 papers · 2 filters

astro-ph.HE2022★ 9 cited

The Luminosity Phase Space of Galactic and Extragalactic X-ray Transients Out to Intermediate Redshifts

Ava Polzin, Raffaella Margutti, Deanne Coppejans +8

We present a detailed compilation and analysis of the X-ray phase space of low- to intermediate-redshift () transients that consolidates observed light curves (and t…

astro-ph.HE2022★ 3 cited

A puzzling 2-hour X-ray periodicity in the 1.5-hour orbital period black widow PSR J1311-3430

Andrea De Luca, Martino Marelli, Sandro Mereghetti +3

Time-domain analysis of an archival XMM-Newton observation unveiled a very unusual variability pattern in the soft X-ray emission of PSR J1311-3430, a black widow millisecond pulsa…

astro-ph.HE2022★ 8 cited

Finding high-redshift gamma-ray bursts in tandem near-infrared and optical surveys

S. Campana, G. Ghirlanda, R. Salvaterra +8

The race for the most distant object in the Universe has been played by long-duration gamma-ray bursts (GRBs), star-forming galaxies and quasars. GRBs took a temporary lead with th…

astro-ph.HE2022★ 129 cited

The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope -- Data Release 3

LAT collaboration, Marco Ajello, Luca Baldini +100

An incremental version of the fourth catalog of active galactic nuclei (AGNs) detected by the Fermi-Large Area Telescope is presented. This version (4LAC-DR3) derives from the thir…

astro-ph.HE2022★ 55 cited

Observability of the very-high-energy emission from GRB 221009A

Giorgio Galanti, Lara Nava, Marco Roncadelli +2

The LHAASO Collaboration detected the gamma ray burst GRB 221009A at energies above with a tail extending up to , whose spectral analysis has pres…

astro-ph.HE2022★ 14 cited

Two decades of X-ray observations of the isolated neutron star RX J1856.5-3754: detection of thermal and non-thermal hard X-rays and refined spin-down measurement

Davide De Grandis, Michela Rigoselli, Sandro Mereghetti +6

The soft X-ray pulsar RX J1856.5-3754 is the brightest member of a small class of thermally-emitting, radio-silent, isolated neutron stars. Its X-ray spectrum is almost indistingui…

astro-ph.HE2022★ 6 cited

Breaking the rules at 0.45: the rebel case of RBS 1055

A. Marinucci, G. Vietri, E. Piconcelli +5

We report on a long (250 ks) NuSTAR observation of the bright quasar RBS 1055 performed in March 2021, and archival XMM-Newton pointings (185 ks) taken in July 2014. An optical spe…

astro-ph.HE2022★ 12 cited

Galactic Observatory Science with the ASTRI Mini-Array at the Observatorio del Teide

A. D'Aì, E. Amato, A. Burtovoi +52

The ASTRI (Astrofisica con Specchi a Tecnologia Replicante Italiana) Mini-Array will be composed of nine imaging atmospheric Cherenkov telescopes at the Observatorio del Teide site…

astro-ph.HE2022★ 56 cited

ASTRI Mini-Array Core Science at the Observatorio del Teide

S. Vercellone, C. Bigongiari, A. Burtovoi +84

The ASTRI (Astrofisica con Specchi a Tecnologia Replicante Italiana) Project led by the Italian National Institute for Astrophysics (INAF) is developing and will deploy at the Obse…

astro-ph.HE2022★ 14 cited

Extragalactic Observatory Science with the ASTRI Mini-Array at the Observatorio del Teide

F. G. Saturni, C. H. E. Arcaro, B. Balmaverde +47

The ASTRI Mini-Array is a next-generation system of nine imaging atmospheric Cherenkov telescopes that is going to be built at the Observatorio del Teide site. After a first phase,…

astro-ph.HE2022★ 5 cited

The relation between optical and -ray emission in BL Lac sources

G. La Mura, J. Becerra Gonzalez, G. Chiaro +2

The relativistic jets produced by some Active Galactic Nuclei (AGNs) are among the most efficient persistent sources of non-thermal radiation and represent an ideal laboratory for…

astro-ph.HE2022

X-ray observations of the isolated black hole candidate OGLE-2011-BLG-0462 , and other collapsed objects discovered through gravitational microlensing

Sandro Mereghetti, Lara Sidoli, Gabriele Ponti +1

Isolated black holes and neutron stars can be revealed through the observation of long duration gravitational microlensing events. A few candidates have been found in surveys of st…

astro-ph.HE2022★ 9 cited

An X-ray fading, UV brightening QSO at

Fabio Vito, Marco Mignoli, Roberto Gilli +13

Explaining the existence of SMBHs at is a persistent challenge to modern astrophysics. Multi-wavelength observations of QSOs revea…

astro-ph.HE2022★ 17 cited

The first 7 months of the 2020 X-ray outburst of the magnetar SGR J1935+2154

Alice Borghese, Francesco Coti Zelati, Gian Luca Israel +10

The magnetar SGR J1935+2154 underwent a new active episode on 2020 April 27-28, when a forest of hundreds of X-ray bursts and a large enhancement of the persistent flux were detect…

astro-ph.HE2022★ 11 cited

Search for new cosmic-ray acceleration sites within the 4FGL catalog Galactic plane sources

LAT Collaboration, S. Abdollahi, F. Acero +117

Cosmic rays are mostly composed of protons accelerated to relativistic speeds. When those protons encounter interstellar material, they produce neutral pions which in turn decay in…

astro-ph.HE2022★ 21 cited

Timing six energetic rotation-powered X-ray pulsars, including the fast-spinning young PSR J0058-7218 and Big Glitcher PSR J0537-6910

Wynn C. G. Ho, Lucien Kuiper, Cristobal M. Espinoza +14

Measuring a pulsar's rotational evolution is crucial to understanding the nature of the pulsar. Here we provide updated timing models for the rotational evolution of six pulsars, f…

astro-ph.HE2022★ 19 cited

Thermal and non-thermal X-ray emission from the rotation-powered radio/-ray pulsar PSR J1740+1000

Michela Rigoselli, Sandro Mereghetti, Sara Anzuinelli +4

We report the results of new XMM-Newton observations of the middle-aged (10 yr) radio pulsar PSR J1740+1000 carried out in 2017-2018. These long pointings (530 ks)…

astro-ph.HE2022★ 2 cited

X-ray observation of the Roche-lobe filling white dwarf plus hot subdwarf system ZTF J213056.71+442046.5

S. Mereghetti, N. La Palombara, T. Kupfer +9

ZTF J213056.71+442046.5 is the prototype of a small class of recently discovered compact binaries composed of a white dwarf and a hot subdwarf that fills its Roche-lobe. Its orbita…

astro-ph.HE2022★ 1 cited

Revisiting the evidences for spectral anomalies in distant blazars: new data on the photon-ALP mixing

Francesco Cenedese, Alberto Franceschini, Giorgio Galanti

We re-examine possible dependencies on redshift of the spectral parameters of blazars observed at very-high energies (VHEs) with Imaging Atmospheric Cherenkov telescopes (IACTs). T…

astro-ph.HE2022★ 6 cited

GRB 190919B: Rapid optical rise explained as a flaring activity

Martin Jelínek, Martin Topinka, Sergey Karpov +17

Following the detection of a long GRB 190919B by INTEGRAL (INTErnational Gamma-Ray Astrophysics Laboratory), we obtained an optical photometric sequence of its optical counterpart.…

astro-ph.HE2022★ 5 cited

XMM-Newton discovery of very high obscuration in the candidate Supergiant Fast X-ray Transient AX J1714.1-3912

L. Sidoli, V. Sguera, P. Esposito +2

We have analysed an archival XMM-Newton EPIC observation that serendipitously covered the sky position of a variable X-ray source AX J1714.1-3912, previously suggested to be a Supe…

astro-ph.HE2022

IGR J18249-3243: a new GeV-emitting FR II and the emerging population of high energy radio galaxies

G. Bruni, L. Bassani, M. Persic +10

The advent of new all-sky radio surveys such as the VLA Sky Survey (VLASS) and the Rapid ASKAP Continuum Survey (RACS), performed with the latest generation radio telescopes, is op…

astro-ph.HE2022★ 11 cited

The relation between accretion rate and jet power in early-type galaxies with thermally unstable hot atmospheres

Tomáš Plšek, Norbert Werner, Romana Grossová +3

We use Chandra X-ray data and Very Large Array radio observations for a sample of 20 nearby, massive, X-ray bright, early-type galaxies to investigate the relation between the Bond…

astro-ph.HE2022★ 10 cited

Investigating the nature of the ultraluminous X-ray sources in the galaxy NGC 925

Chiara Salvaggio, Anna Wolter, Fabio Pintore +7

Variability is a powerful tool to investigate properties of X-ray binaries (XRB), in particular for Ultraluminous X-ray sources (ULXs) that are mainly detected in the X-ray band. F…