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

4.1k citations

Showing 2011 · astro-ph.HEShow all

42 papers · 2 filters

astro-ph.HE2011★ 24 cited

XMM-Newton observation of the persistent Be/NS X-ray binary pulsar RX J0440.9+4431

N. La Palombara, L. Sidoli, P. Esposito +2

Many X-ray accreting pulsars have a soft excess below 10 keV. This feature has been detected also in faint sources and at low luminosity levels, suggesting that it is an ubiquitous…

astro-ph.HE2011★ 20 cited

A time-variable, phase-dependent emission line in the X-ray spectrum of the isolated neutron star RX J0822-4300

A. De Luca, D. Salvetti, A. Sartori +9

RX J0822-4300 is the Central Compact Object associated with the Puppis A supernova remnant. Previous X-ray observations suggested RX J0822-4300 to be a young neutron star with a we…

astro-ph.HE2011★ 3 cited

Matching microlensing events with X-ray sources

N. Sartore, A. Treves

The detection of old neutron stars and black holes in isolation is one of the cornerstones of compact object astrophysics. Microlensing surveys may help on this purpose since the l…

astro-ph.HE2011★ 200 cited

Gamma-ray Activity in the Crab Nebula: The Exceptional Flare of April 2011

R. Buehler, J. D. Scargle, R. D. Blandford +18

The Large Area Telescope on board the Fermi satellite observed a gamma-ray flare in the Crab nebula lasting for approximately nine days in April of 2011. The source, which at optic…

astro-ph.HE2011★ 38 cited

A new super-soft X-ray source in the Small Magellanic Cloud: Discovery of the first Be/white dwarf system in the SMC?

R. Sturm, F. Haberl, W. Pietsch +5

The Small Magellanic Cloud (SMC) hosts a large number of Be/X-ray binaries, however no Be/white dwarf system is known so far, although population synthesis calculations predict tha…

astro-ph.HE2011★ 61 cited

The cosmic-ray and gas content of the Cygnus region as measured in gamma rays by the Fermi Large Area Telescope

the Fermi LAT Collaboration

The Cygnus region hosts a giant molecular-cloud complex which actively forms massive stars. Interactions of cosmic rays with interstellar gas and radiation fields make it shine at…

astro-ph.HE2011★ 9 cited

Supergiant Fast X-ray Transients as transient sources in High Mass X-ray Binaries

L. Sidoli

Supergiant Fast X-ray Transients (SFXTs) represent the most extreme case of X-ray variability in High Mass X-ray Binaries hosting blue supergiant companions. Mainly discovered than…

astro-ph.HE2011★ 29 cited

Simultaneous multi-wavelength campaign on PKS 2005-489 in a high state

The H. E. S. S. Collaboration, the Fermi LAT Collaboration, : +345

The high-frequency peaked BL Lac object PKS 2005-489 was the target of a multi-wavelength campaign with simultaneous observations in the TeV gamma-ray (H.E.S.S.), GeV gamma-ray (Fe…

astro-ph.HE2011★ 116 cited

Discovery of Nine Gamma-Ray Pulsars in Fermi-LAT Data Using a New Blind Search Method

H. J. Pletsch, L. Guillemot, B. Allen +28

We report the discovery of nine previously unknown gamma-ray pulsars in a blind search of data from the Fermi Large Area Telescope (LAT). The pulsars were found with a novel hierar…

astro-ph.HE2011★ 73 cited

Fermi Large Area Telescope Observations of the Supernova Remnant G8.7-0.1

LAT Collaboration

We present a detailed analysis of the GeV gamma-ray emission toward the supernova remnant (SNR) G8.7-0.1 with the Large Area Telescope (LAT) onboard the \emph{Fermi} Gamma-ray Spac…

astro-ph.HE2011★ 72 cited

Search for Gamma-ray Emission from X-ray Selected Seyfert Galaxies with Fermi-LAT

LAT Collaboration

We report on a systematic investigation of the gamma-ray properties of 120 hard X-ray-selected Seyfert galaxies classified as `radio-quiet' objects, utilizing the three-year accumu…

astro-ph.HE2011★ 595 cited

Measurement of separate cosmic-ray electron and positron spectra with the Fermi Large Area Telescope

The Fermi LAT Collaboration, M. Ackermann, M. Ajello +148

We measured separate cosmic-ray electron and positron spectra with the Fermi Large Area Telescope. Because the instrument does not have an onboard magnet, we distinguish the two sp…

astro-ph.HE2011★ 18 cited

The Identification of the X-ray Counterpart to PSR J2021+4026

Martin C. Weisskopf, Roger W. Romani, Massimiliano Razzano +16

We report the probable identification of the X-ray counterpart to the gamma-ray pulsar PSR J2021+4026 using imaging with the Chandra X-ray Observatory ACIS and timing analysis with…

astro-ph.HE2011★ 31 cited

First simultaneous multi-wavelength observations of the black hole candidate IGR J17091-3624: ATCA, INTEGRAL, Swift, and RXTE views of the 2011 outburst

J. Rodriguez, S. Corbel, I. Caballero +5

We present the results of the first four (quasi-)simultaneous radio (ATCA), X-ray (Swift, RXTE), and Gamma-ray (INTEGRAL) observations of the black hole candidate IGR J17091-3624,…

astro-ph.HE2011★ 566 cited

Constraining Dark Matter Models from a Combined Analysis of Milky Way Satellites with the Fermi Large Area Telescope

LAT Collaboration, M. Ackermann, M. Ajello +150

Satellite galaxies of the Milky Way are among the most promising targets for dark matter searches in gamma rays. We present a search for dark matter consisting of weakly interactin…

astro-ph.HE2011★ 1.3k cited

Fermi Large Area Telescope Second Source Catalog

LAT Collaboration

We present the second catalog of high-energy gamma-ray sources detected by the Large Area Telescope (LAT), the primary science instrument on the Fermi Gamma-ray Space Telescope (Fe…

astro-ph.HE2011★ 654 cited

The Second Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope

LAT Collaboration

The second catalog of active galactic nuclei (AGNs) detected by the Fermi Large Area Telescope (LAT) in two years of scientific operation is presented. The Second LAT AGN Catalog (…

astro-ph.HE2011★ 124 cited

A Statistical Approach to Recognizing Source Classes for Unassociated Sources in the First Fermi-LAT Catalog

LAT Collaboration

The Fermi Large Area Telescope First Source Catalog (1FGL) provided spatial, spectral, and temporal properties for a large number of gamma-ray sources using a uniform analysis meth…

astro-ph.HE2011★ 16 cited

VLT observations of the two Fermi pulsars PSR J1357-6429 and PSR J1048-5832

R. P. Mignani, A. Shearer, A. De Luca +3

Optical observations of pulsars are crucial to study the neutron star properties, from the structure and composition of the interior, to the properties and geometry of the magnetos…

astro-ph.HE2011★ 34 cited

Constraints on dark matter models from a Fermi LAT search for high-energy cosmic-ray electrons from the Sun

The Fermi LAT Collaboration

During its first year of data taking, the Large Area Telescope (LAT) onboard the Fermi Gamma-Ray Space Telescope has collected a large sample of high-energy cosmic-ray electrons an…

astro-ph.HE2011★ 25 cited

Swift monitoring of the central X-ray source in RCW 103

P. Esposito, R. Turolla, A. De Luca +3

The X-ray source 1E 161348-5055 lies at the centre of the 2-kyr-old supernova remnant RCW 103. Owing to its 24-ks modulation, orders-of-magnitude flux variability over a few months…

astro-ph.HE2011★ 18 cited

Highly absorbed X-ray binaries in the Small Magellanic Cloud

G. Novara, N. La Palombara, S. Mereghetti +12

Many of the high mass X-ray binaries (HMXRBs) discovered in recent years in our Galaxy are characterized by a high absorption, most likely intrinsic to the system, which hampers th…

astro-ph.HE2011★ 62 cited

Narrow Line Seyfert 1 galaxies at hard X-rays

F. Panessa, A. De Rosa, L. Bassani +7

Narrow Line Seyfert 1 (NLSy1) galaxies are a peculiar class of type 1 AGN (BLSy1). The X-ray properties of individual objects belonging to this class are often extreme and associat…

astro-ph.HE2011★ 356 cited

Fermi-LAT Observations of Markarian 421: the Missing Piece of its Spectral Energy Distribution

LAT collaboration, A. A. Abdo et al., the MAGIC collaboration +4

We report on the gamma-ray activity of the high-synchrotron-peaked BL Lacertae object Mrk 421 during the first 1.5 years of Fermi operation, from 2008 August 5 to 2010 March 12. We…