Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.7k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2.4k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.3k papers
- Charles UniversityCZ2.3k papers
- Institute for High Energy PhysicsES2.3k papers
- Institut de Recherche sur les Lois Fondamentales de l'UniversFR2.2k papers
- The Ohio State UniversityUS2.1k papers
- Universidad Autónoma de MadridES2.1k papers
- Rutherford Appleton LaboratoryGB2.1k papers
- European Organization for Nuclear ResearchCH2.1k papers
- University of Wisconsin–MadisonUS2.1k papers
- Joint Institute for Nuclear ResearchRU2k papers
13 papers · 2 filters
Probing the innermost regions of AGN jets and their magnetic fields with RadioAstron. I. Imaging BL Lacertae at 21 microarcsecond resolution
José L. Gómez, Andrei P. Lobanov, Gabriele Bruni +10
We present the first polarimetric space VLBI imaging observations at 22 GHz. BL Lacertae was observed in 2013 November 10 with the RadioAstron space VLBI mission, including a groun…
Multiwavelength Study of Quiescent States of Mrk 421 with Unprecedented Hard X-Ray Coverage Provided by NuSTAR in 2013
M. Baloković, D. Paneque, G. Madejski +305
We present coordinated multiwavelength observations of the bright, nearby BL Lac object Mrk 421 taken in 2013 January-March, involving GASP-WEBT, Swift, NuSTAR, Fermi-LAT, MAGIC, V…
First NuSTAR Observations of Mrk 501 within a Radio to TeV Multi-Instrument Campaign
A. Furniss, K. Noda, S. Boggs +273
We report on simultaneous broadband observations of the TeV-emitting blazar Markarian 501 between 1 April and 10 August 2013, including the first detailed characterization of the s…
A multi-wavelength polarimetric study of the blazar CTA 102 during a Gamma-ray flare in 2012
Carolina Casadio, José L. Gómez, Svetlana G. Jorstad +28
We perform a multi-wavelength polarimetric study of the quasar CTA 102 during an extraordinarily bright -ray outburst detected by the {\it Fermi} Large Area Telescope in Septemb…
Discovery of a Highly Polarized Optical Microflare in the Blazar S5 0716+714 During 2014 WEBT Campaign
Gopal Bhatta, Arti Goyal, Michal Ostrowski +42
The occurrence of low-amplitude flux variations in blazars on hourly timescales, commonly known as microvariability, is still a widely debated subject in high-energy astrophysics.…
Statistics of X-ray flares of Sagittarius A*: evidence for solar-like self-organized criticality phenomenon
Ya-Ping Li, Feng Yuan, Qiang Yuan +6
X-ray flares have routinely been observed from the supermassive black hole, Sagittarius A (Sgr A), at our Galactic center. The nature of these flares remains largel…
Through The Ring Of Fire: -Ray Variability In Blazars By A Moving Plasmoid Passing A Local Source Of Seed Photons
Nicholas R. MacDonald, Alan P. Marscher, Svetlana G. Jorstad +1
Blazars exhibit flares across the electromagnetic spectrum. Many -ray flares are highly correlated with flares detected at optical wavelengths; however, a small subset appears t…
Multiwavelength behaviour of the blazar OJ 248 from radio to γ-rays
M. I. Carnerero, C. M. Raiteri, M. Villata +4
We present an analysis of the multiwavelength behaviour of the blazar OJ 248 at z = 0.939 in the period 2006-2013. We use low-energy data (optical, near-infrared, and radio) obtain…
On Estimating the High-Energy Cutoff in the X-ray Spectra of Black Holes via Reflection Spectroscopy
Javier A. Garcia, Thomas Dauser, James F. Steiner +3
The fundamental parameters describing the coronal spectrum of an accreting black hole are the slope of the power-law continuum and the energy at which it rolls over.…
A Very Deep Chandra Observation of the Galaxy Group NGC 5813: AGN Shocks, Feedback, and Outburst History
S. W. Randall, P. E. J. Nulsen, C. Jones +11
We present results from a very deep (650 ks) Chandra X-ray observation of the galaxy group NGC~5813, the deepest Chandra observation of a galaxy group to date. Earlier observations…
Perplexing correlations between Gamma-ray emission and parsec-scale jet orientation variations in the BL Lac object S5 0716+714
B. Rani, T. P. Krichbaum, A. P. Marscher +4
The analysis of -ray flux variability along with the parsec-scale jet kinematics suggests that the high-energy radiation in the BL Lac object S5 0716+714 has a significant corre…
Connection between inner jet kinematics and broadband flux variability in the BL Lac object S5 0716+714
B. Rani, T. P. Krichbaum, A. P. Marscher +5
We present a high-frequency very long baseline interferometry (VLBI) kinematical study of the BL Lac object S5 0716+714 over the time period of September 2008 to October 2010. The…
The innermost regions of relativistic jets and their magnetic fields in radio-loud Active Galactic Nuclei
I. Donnarumma, I. Agudo, L. Costamante +17
This is a White Paper in support of the mission concept of the Large Observatory for X-ray Timing (LOFT), proposed as a medium-sized ESA mission. We discuss the potential of LOFT f…