6.6k citations
- Centre National de la Recherche ScientifiqueFR493 papers
- National Institute for AstrophysicsIT482 papers
- Instituto de Astrofísica de CanariasES462 papers
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- University of PaduaIT407 papers
- Universidad de La LagunaES383 papers
- California Institute of TechnologyUS356 papers
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223 papers · 1 filter
Multi-frequency VLBA study of the blazar S5 0716+714 during the active state in 2004: I. Inner jet kinematics
E. A. Rastorgueva, K. Wiik, T. Savolainen +4
We observed the blazar \object{0716+714} with the VLBA during its active state in 2003-2004. In this paper we discuss multi-frequency analysis of the inner jet (first 1 mas) kinema…
Explaining the Orbits of the Galactic Center S-Stars
David Merritt, Alessia Gualandris, Seppo Mikkola
The young stars near the supermassive black hole at the galactic center follow orbits that are nearly random in orientation and that have an approximately thermal distribution of e…
Recovering the real-space correlation function from photometric redshift surveys
Pablo Arnalte-Mur, Alberto Fernández-Soto, Vicent J. Martínez +3
Measurements of clustering in large-scale imaging surveys that make use of photometric redshifts depend on the uncertainties in the redshift determination. We have used light-cone…
Significant Limb-Brightening in the Inner Parsec of Markarian 501
B. Glenn Piner, Niraj Pant, Philip G. Edwards +1
We present three 43 GHz images and a single 86 GHz image of Markarian 501 from VLBA observations in 2005. The 86 GHz image shows a partially resolved core with a flux density of ab…
The origin of redshift asymmetries: How LambdaCDM explains anomalous redshift
Sami-Matias Niemi, Mauri Valtonen
Several authors have found a statistically significant excess of galaxies with higher redshifts relative to the group centre, so-called discordant redshifts, in particular in group…
The June 2008 flare of Markarian 421 from optical to TeV energies
The Agile Collaboration, Webt Collaboration, Magic Collaboration +2
We present optical, X-ray, high energy ( GeV) and very high energy ( GeV; VHE) observations of the high-frequency peaked blazar Mrk 421 taken betwee…