4.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- S. Mereghetti3 profiles198 · h 61
- A. Tiengo3 profiles128 · h 45
- P. Esposito3 profiles123 · h 34
- G. Israel2 profiles102 · h 50
- L. Sidoli91 · h 28
- R. Mignani3 profiles70 · h 40
- N. Rea2 profiles69 · h 49
- A. De Luca65 · h 28
- R. Turolla2 profiles56 · h 52
- L. Stella3 profiles53 · h 60
- P. Caraveo2 profiles45 · h 93
- S. Zane42 · h 50
- National Institute for AstrophysicsIT625 papers
- Centre National de la Recherche ScientifiqueFR426 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR343 papers
- Astronomical Observatory of RomeIT322 papers
- University of PaduaIT318 papers
- Brera Astronomical ObservatoryIT298 papers
- Goddard Space Flight CenterUS290 papers
- Astrophysique, Instrumentation et ModélisationFR285 papers
- Max Planck Institute for Extraterrestrial PhysicsDE278 papers
- Institute of Space SciencesES260 papers
- Istituto di Radioastronomia di BolognaIT250 papers
- Agenzia Spaziale ItalianaIT248 papers
21 papers · 2 filters
Searching for small-scale diffuse emission around SGR 1806-20
D. Viganò, N. Rea, P. Esposito +6
Diffuse radio emission was detected around the soft gamma-ray repeater SGR 1806-20, after its 2004 powerful giant flare. We study the possible extended X-ray emission at small scal…
Probing large-scale wind structures in Vela X-1 using off-states with INTEGRAL
L. Sidoli, A. Paizis, F. Fuerst +4
Vela X-1 is the prototype of the class of wind-fed accreting pulsars in high mass X-ray binaries hosting a supergiant donor. We have analyzed in a systematic way ten years of INTEG…
Gamma-ray flaring activity from the gravitationally lensed blazar PKS 1830-211 observed by Fermi LAT
The Fermi LAT Collaboration, A. A. Abdo, M. Ackermann +126
The Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope routinely detects the highly dust-absorbed, reddened, and MeV-peaked flat spectrum radio quasar PKS 1830…
The spectrum of isotropic diffuse gamma-ray emission between 100 MeV and 820 GeV
The Fermi LAT collaboration, M. Ackermann, M. Ajello +142
The γ-ray sky can be decomposed into individually detected sources, diffuse emission attributed to the interactions of Galactic cosmic rays with gas and radiation fields, and a res…
Neutron stars - thermal emitters
A. Y. Potekhin, A. De Luca, J. A. Pons
Confronting theoretical models with observations of thermal radiation emitted by neutron stars is one of the most important ways to understand the properties of both, superdense ma…
The Spectrum and Morphology of the Fermi Bubbles
LAT Collaboration
The Fermi bubbles are two large structures in the gamma-ray sky extending to above and below the Galactic center. We analyze 50 months of Fermi Large Area Telescope data…
Wind accretion: Theory and Observations
N. I. Shakura, K. A. Postnov, A. Yu. Kochetkova +3
A review of wind accretion in HMXB is presented. We focus on different regimes of quasi-spherical accretion onto a NS: supersonic (Bondi) accretion, which takes place when the capt…
On the puzzling high-energy pulsations of the energetic radio-quiet -ray pulsar J18131246
M. Marelli, A. Harding, D. Pizzocaro +6
We have analyzed the new deep {\it XMM-Newton} and {\it Chandra} observations of the energetic radio-quiet pulsar J18131246. The X-ray spectrum is non-thermal, very hard and abs…
Soft X-ray characterisation of the long term properties of Supergiant Fast X-ray Transients
P. Romano, L. Ducci, V. Mangano +3
We perform the first high-sensitivity soft X-ray long-term monitoring with Swift/XRT of three relatively unexplored Supergiant Fast X-ray Transients (SFXTs), IGR J08408-4503, IGR J…
High-energy pulsations and phase-resolved spectroscopy of PSR J1741-2054
M. Marelli, A. Belfiore, P. Saz Parkinson +6
We report the results of a deep XMM-Newton observation of the radio-faint -ray pulsar J1741-2054 and its nebula together with the analysis of 5 years of Fermi LAT data. The X-ra…
Bright Flares in Supergiant Fast X-ray Transients
N. Shakura, k. Postnov, L. Sidoli +1
At steady low-luminosity states, Supergiant Fast X-ray Transients (SFXTs) can be at the stage of quasi-spherical settling accretion onto slowly rotating magnetized NS from the OB-c…
Diversity of GRB energetics vs. SN homogeneity: supernova 2013cq associated with the gamma-ray burst 130427A
A. Melandri, E. Pian, V. D'Elia +26
Long-duration gamma-ray bursts (GRBs) have been found to be associated with broad-lined type-Ic supernovae (SNe), but only a handful of cases have been studied in detail. Prompted…
Three new X-ray emitting sdO stars discovered with Chandra
N. La Palombara, P. Esposito, S. Mereghetti +1
X-ray observations of sdO stars are a useful tool to investigate their properties, but so far only two sdO stars were detected at X-rays. We observed a complete flux-limited sample…
The X-ray emission of the high mass X-ray binary IGR J17200-3116
P. Esposito, G. L. Israel, L. Sidoli +3
The source IGR J17200-3116 was discovered in the hard X-ray band by INTEGRAL. A periodic X-ray modulation at ~326 s was detected in its Swift light curves by our group (and subsequ…
Constraints on the winds of hot subdwarf stars from X-ray observations of two sdB binaries with compact companions: CD -30 11223 and PG 1232-136
S. Mereghetti, N. La Palombara, P. Esposito +5
Little observational data are available on the weak stellar winds of hot subdwarf stars of B spectral type (sdB). Close binary systems composed of an sdB star and a compact object…
Deep Broadband Observations of the Distant Gamma-ray Blazar PKS 1424+240
S. Archambault, T. Aune, B. Behera +149
We present deep VERITAS observations of the blazar PKS 1424+240, along with contemporaneous Fermi Large Area Telescope, Swift X-ray Telescope and Swift UV Optical Telescope data be…
Multifrequency Studies of the Peculiar Quasar 4C +21.35 During the 2010 Flaring Activity
M. Ackermann, M. Ajello, A. Allafort +288
The discovery of rapidly variable Very High Energy (VHE; E > 100 GeV) gamma-ray emission from 4C +21.35 (PKS 1222+216) by MAGIC on 2010 June 17, triggered by the high activity dete…
Light-curve modelling constraints on the obliquities and aspect angles of the young Fermi pulsars
M. Pierbattista, A. K. Harding, I. A. Grenier +4
In more than four years of observation the Large Area Telescope on board the Fermi satellite has identified pulsed -ray emission from more than 80 young pulsars, providing light…
Cumulative luminosity distributions of Supergiant Fast X-ray Transients in hard X-rays
A. Paizis, L. Sidoli
We have analyzed in a systematic way about nine years of INTEGRAL data (17-100 keV) focusing on Supergiant Fast X-ray Transients (SFXTs) and three classical High Mass X-ray Binarie…
New insights on accretion in Supergiant Fast X-ray Transients from XMM-Newton and INTEGRAL observations of IGR J175442619
S. P. Drave, A. J. Bird, L. Sidoli +4
XMM-Newton observations of the supergiant fast X-ray transient IGRJ175442619 are reported and placed in the context of an analysis of archival INTEGRAL/IBIS data that provide…
The 100-month Swift catalogue of supergiant fast X-ray transients I. BAT on-board and transient monitor flares
P. Romano, H. A. Krimm, D. M. Palmer +10
We investigate the characteristics of bright flares for a sample of supergiant fast X-ray transients and their relation to the orbital phase. We have retrieved all Swift/BAT Transi…