Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The Ohio State UniversityUS2.4k papers
- Wayne State UniversityUS2.3k papers
- University of RochesterUS2.2k papers
- Carnegie Mellon UniversityUS2.1k papers
- Texas A&M UniversityUS2.1k papers
- Massachusetts Institute of TechnologyUS2.1k papers
- University of California, Los AngelesUS2.1k papers
- University of California, DavisUS2.1k papers
- University of FloridaUS2k papers
- Fermi National Accelerator LaboratoryUS2k papers
- Joint Institute for Nuclear ResearchRU1.9k papers
- Centre National de la Recherche ScientifiqueFR1.9k papers
26 papers · 2 filters
A Three-Year Multi-Wavelength Study of the Very High Energy Gamma-ray Blazar 1ES 0229+200
E. Aliu, S. Archambault, T. Arlen +83
The high-frequency-peaked BL Lacertae object 1ES 0229+200 is a relatively distant (z = 0.1396), hard-spectrum (Gamma ~ 2.5), very-high-energy-emitting (E > 100 GeV) gamma-ray blaza…
Multiwavelength observations of the gamma-ray emitting narrow-line Seyfert 1 PMN J0948+0022 in 2011
F. D'Ammando, J. Larsson, M. Orienti +13
We report on radio-to-gamma-ray observations during 2011 May-September of PMN J0948+0022, the first narrow-line Seyfert 1 (NLSy1) galaxy detected in gamma-rays by Fermi-LAT. Strong…
Relativistic Pair Beams from TeV Blazars: A Source of Reprocessed GeV Emission rather than IGM Heating
Lorenzo Sironi, Dimitrios Giannios
The interaction of TeV photons from blazars with the extragalactic background light produces a relativistic beam of electron-positron pairs streaming through the intergalactic medi…
Connecting radio variability to the characteristics of gamma-ray blazars
Joseph L. Richards, Talvikki Hovatta, Walter Max-Moerbeck +3
We present results from four years of twice-weekly 15 GHz radio monitoring of about 1500 blazars with the Owens Valley Radio Observatory 40 m telescope. Using the intrinsic modulat…
Long-term TeV and X-ray Observations of the Gamma-ray Binary HESS J0632+057
VERITAS Collaboration, E. Aliu, S. Archambault +297
HESS J0632+057 is the only gamma-ray binary known so far whose position in the sky allows observations with ground-based observatories both in the northern and southern hemispheres…
VERITAS Observations of the Microquasar Cygnus X-3
S. Archambault, M. Beilicke, W. Benbow +76
We report results from TeV gamma-ray observations of the microquasar Cygnus X-3. The observations were made with the Very Energetic Radiation Imaging Telescope Array System (VERITA…
Observation of Markarian 421 in TeV gamma rays over a 14-year time span
V. A. Acciari, T. Arlen, T. Aune +73
The variability of the blazar Markarian 421 in TeV gamma rays over a 14-year time period has been explored with the Whipple 10 m telescope. It is shown that the dynamic range of it…
Multiwavelength Observations of The TeV Binary LS I +61 303 with VERITAS, Fermi-LAT and Swift-XRT During a TeV Outburst
E. Aliu, S. Archambault, B. Behera +71
We present the results of a multiwavelength observational campaign on the TeV binary system LS I +61 303 with the VERITAS telescope array (>200 GeV), Fermi-LAT (0.3-300 GeV), and S…
Long term observations of B2 1215+30 with VERITAS
VERITAS collaboration, E. Aliu, S. Archambault +82
We report on VERITAS observations of the BL Lac object B2 1215+30 between 2008 and 2012. During this period, the source was detected at very high energies (VHE; E > 100 GeV) by VER…
Radio Emission Region Exposed: Courtesy of the Double Pulsar
David Lomiashvili, Maxim Lyutikov
The double pulsar system PSR J0737-3039A/B offers exceptional possibilities for detailed probes of the structure of the pulsar magnetosphere, pulsar winds and relativistic reconnec…
An Exceptional Radio Flare in Markarian 421
Joseph L. Richards, Talvikki Hovatta, Matthew L. Lister +9
In September 2012, the high-synchrotron-peaked (HSP) blazar Markarian 421 underwent a rapid wideband radio flare, reaching nearly twice the brightest level observed in the centimet…
A quasi-periodic oscillation in the blazar J1359+4011
O. G. King, T. Hovatta, W. Max-Moerbeck +6
The OVRO 40-m telescope has been monitoring the 15 GHz radio flux density of over 1200 blazars since 2008. The 15 GHz light curve of the flat spectrum radio quasar J1359+4011 shows…
A search for enhanced very high energy gamma-ray emission from the March 2013 Crab Nebula flare
The VERITAS Collaboration, E. Aliu, S. Archambault +76
In March 2013, a flaring episode from the Crab Nebula lasting ~2 weeks was detected by the Fermi-LAT (Large Area Telescope on board the Fermi Gamma-ray Space Telescope). VERITAS pr…
Discovery of a new TeV gamma-ray source: VER J0521+211
VERITAS Collaboration, S. Archambault, T. Arlen +83
We report the detection of a new TeV gamma-ray source, VER J0521+211, based on observations made with the VERITAS imaging atmospheric Cherenkov telescope array. These observations…
Multifrequency studies of the narrow-line Seyfert 1 galaxy SBS 0846+513
F. D'Ammando, M. Orienti, J. Finke +10
The narrow-line Seyfert 1 galaxy SBS 0846+513 was first detected by the Large Area Telescope (LAT) on-board Fermi in 2011 June-July when it underwent a period of flaring activity.…
Multiwavelength observations and modeling of 1ES 1959+650 in a low flux state
VERITAS Collaboration, E. Aliu, S. Archambault +82
We report on the VERITAS observations of the high-frequency peaked BL Lac object 1ES 1959+650 in the period 2007-2011. This source is detected at TeV energies by VERITAS at 16.4 st…
A Late-Time Flattening of Light Curves in Gamma-Ray Burst Afterglows
Lorenzo Sironi, Dimitrios Giannios
The afterglow emission from Gamma-Ray Bursts (GRBs) is usually interpreted as synchrotron radiation from relativistic electrons accelerated at the GRB external shock, that decelera…
I. Inverse Compton origin of pulsar γ-ray emission. II. Reconnection model of Crab flares
Maxim Lyutikov
I. There is growing evidence that pulsars' high energy emission is generated via Inverse Compton mechanism. II. The particles producing Crab flares, and possibly most of the Crab N…
Afterglow jet breaks, GeV photons and the electromagnetic model of short GRBs
Maxim Lyutikov
We discuss three topics: (i) the dynamics of afterglow jet breaks; (ii) the origin of Fermi-LAT photons; (iii) the electromagnetic model of short GRBs
Discovery of TeV Gamma-ray Emission Toward Supernova Remnant SNR G78.2+2.1
E. Aliu, S. Archambault, T. Arlen +97
We report the discovery of an unidentified, extended source of very-high-energy (VHE) gamma-ray emission, VER J2019+407, within the radio shell of the supernova remnant SNR G78.2+2…
Topics in microphysics of relativistic plasmas
Maxim Lyutikov, Alexandre Lazarian
Astrophysical plasmas can have parameters vastly different from the more studied laboratory and space plasmas. In particular, the magnetic fields can be the dominant component of t…
The ordinary life of the gamma-ray emitting narrow-line Seyfert 1 galaxy PKS 1502+036
F. D'Ammando, M. Orienti, A. Doi +7
We report on multifrequency observations of the gamma-ray emitting narrow-line Seyfert 1 galaxy PKS 1502+036 performed from radio to gamma-rays during 2008 August-2012 November by…
OVRO 40 m Blazar Monitoring Program: Location of the gamma-ray emission region in blazars by the study of correlated variability at radio and gamma-rays
W. Max-Moerbeck, J. L. Richards, V. Pavlidou +5
Blazars are powerful, variable emitters from radio to gamma-ray wavelengths. Even though the general picture of synchrotron emission at low energies and inverse Compton at the high…
The S2 star as a probe of the accretion disk of Sgr A*
Dimitrios Giannios, Lorenzo Sironi
How accretion proceeds around the massive black hole in the Galactic center and other highly sub-Eddington accretors remains poorly understood. The orbit of the S2 star in the Gala…