10.4k citations
- Goddard Space Flight CenterUS657 papers
- George Mason UniversityUS539 papers
- University of Maryland, College ParkUS484 papers
- Naval Research Laboratory Space Science Division467 papers
- Centre National de la Recherche ScientifiqueFR448 papers
- Stanford UniversityUS339 papers
- Kavli Institute for Particle Astrophysics and CosmologyUS301 papers
- National Radio Astronomy ObservatoryUS299 papers
- Center for Astrophysics Harvard & SmithsonianUS293 papers
- National Institute for AstrophysicsIT293 papers
- SLAC National Accelerator LaboratoryUS279 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR263 papers
16 papers · 2 filters
The Geometry of Mass Outflows and Fueling Flows in the Seyfert 2 Galaxy Mrk 3
D. M. Crenshaw, S. B. Kraemer, H. R. Schmitt +4
We present a study of the resolved emission-line regions and an inner dust/gas disk in the Seyfert 2 galaxy Mrk 3, based on Hubble Space Telescope observations. We show that the ex…
The Spectral Energy Distribution of Fermi bright blazars
A. A. Abdo, M. Ackermann, M. Ajello +107
(Abridged) We have conducted a detailed investigation of the broad-band spectral properties of the γ-ray selected blazars of the Fermi LAT Bright AGN Sample (LBAS). By combining ou…
Discovery of very high energy gamma rays from PKS 1424+240 and multiwavelength constraints on its redshift
The VERITAS Collaboration, V. A. Acciari, The Fermi Collaboration +4
We report the first detection of very-high-energy (VHE) gamma-ray emission above 140 GeV from PKS 1424+240, a BL Lac object with an unknown redshift. The photon spectrum above 140…
Radial Velocity Offsets Due to Mass Outflows and Extinction in Active Galactic Nuclei
D. M. Crenshaw, H. R. Schmitt, S. B. Kraemer +2
We present a study of the radial velocity offsets between narrow emission lines and host galaxy lines (stellar absorption and H I 21-cm emission) in Seyfert galaxies with observed…
The discovery of diffuse steep spectrum sources in Abell 2256
R. J. van Weeren, H. T. Intema, J. B. R. Oonk +2
Context: Hierarchical galaxy formation models indicate that during their lifetime galaxy clusters undergo several mergers. Here we report on the discovery of three diffuse radio so…
A search for steep spectrum radio relics and halos with the GMRT
R. J. van Weeren, H. J. A. Rottgering, M. Bruggen +1
Context: Diffuse radio emission, in the form of radio halos and relics, traces regions in clusters with shocks or turbulence, probably produced by cluster mergers. Some models of d…