ar X iv : 0 81 2 . 02 80 v 1 [ as tr o - ph ] 1 D ec 2 00 8 High - resolution studies of the twin jet in NGC 1052
نویسنده
چکیده
E. Rosa∗, M. Kadlerb,c,d,e , Y. Y. Kovaleva, f ,†, H. D. Allerg , M. F. Allerg , S. Kaufmannh aMax-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany bDr. Remeis-Sternwarte Bamberg, Universität Erlangen-Nürnberg, Sternwartstrasse 7, D-96049 Bamberg, Germany cErlangen Centre for Astroparticle Physics, Erwin-Rommel-Str. 1, D-91058 Erlangen, Germany dCRESST/NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA eUniversities Space Research Association, 10211 Wincopin Circle, Suite 500 Columbia, MD 21044, USA f Astro Space Center of Lebedev Physical Institute, Profsoyuznaya 84/32, 117997 Moscow, Russia gDepartment of Astronomy, University of Michigan, 817 Denison Building, Ann Arbor, MI 48109-1042, USA hLandessternwarte Heidelberg, Universität Heidelberg, Königstuhl 12, D-69117 Heidelberg, Germany E-mail: [email protected], [email protected], [email protected], [email protected], [email protected] [email protected]
منابع مشابه
ar X iv : 0 81 2 . 01 26 v 1 [ as tr o - ph ] 1 D ec 2 00 8 15 GHz VLBI detection of the HST - 1 feature in the M 87 jet
C.S. Chang∗,a,†, E. Rosa, Y. Y. Kovaleva,b,‡, M. L. Listerc aMax-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany bAstro Space Centre of Lebedev Physical Institute, Profsoyuznaya 84/32, 117997 Moscow, Russia cDepartment of Physics, Purdue University, 525 Northwestern Avenue, West Lafayette, IN 47907, USA E-mail: [email protected], [email protected], [email protected], mlis...
متن کاملar X iv : 0 81 0 . 43 71 v 1 [ as tr o - ph ] 2 4 O ct 2 00 8 Welcome back , Polaris the Cepheid
For about 100 years the amplitude of the 4 d pulsation in Polaris has decreased. We present new results showing a significant increase in the amplitude based on 4.5 years of continuous monitoring from the ground and with two satellite missions.
متن کاملar X iv : 0 71 0 . 29 00 v 2 [ as tr o - ph ] 3 D ec 2 00 7 In Search of Possible Associations between Planetary Nebulae and Open Clusters
We consider the possibility of cluster membership for 13 planetary nebulae that are located in close proximity to open clusters lying in their lines of sight. The short lifetimes and low sample size of intermediate-mass planetary nebulae with respect to nearby open clusters conspire to reduce the probability of observing a true association. Not surprisingly, line of sight coincidences almost ce...
متن کاملar X iv : 0 81 2 . 29 80 v 1 [ as tr o - ph ] 1 6 D ec 2 00 8 Hard ( State ) Problems
For microquasars, the one time when these systems exhibit steady and powerful jets is when they are in the hard state. Thus, our understanding of this state is key to learning about the disk/jet connection. Recent observational and theoretical results have led to questions about whether we really understand the physical properties of this state, and even our basic picture of this state is uncer...
متن کاملar X iv : 0 81 2 . 30 48 v 1 [ as tr o - ph ] 1 6 D ec 2 00 8 Cosmological density perturbations in modified gravity theories
In the context of f (R) theories of gravity, we study the cosmological evolution of scalar perturbations by using a completely general procedure. We find that the exact fourth-order differential equation for the matter density perturbations in the longitudinal gauge, reduces to a second-order equation for sub-Hubble modes. This simplification is compared with the standard (quasi-static) equatio...
متن کامل