WWW Access to Radio Measurements of Clusters of Galaxies
نویسندگان
چکیده
منابع مشابه
Dying Radio Galaxies in Clusters
We report the recent discovery of three ‘dying’ radio galaxies belonging to the Westerbork Northern Sky Survey minisurvey sample: WNB1734+6407, WNB1829+6911 and WNB1851+5707. These sources have been selected on the basis of their extremely steep broad-band radio spectra, which is a strong indication that these objects either belong to the rare class of dying radio galaxies or that we are observ...
متن کاملObservation of Radio Galaxies and Clusters of Galaxies with VERITAS
Radio galaxies are the only non-blazar extragalactic objects detected in the VHE (E > 100 GeV) band. These objects enable the investigation of the main substructures of the AGN, in particular the core, the jet and its interaction with the intergalactic environment. Clusters of galaxies, instead, have not been detected by γ-ray observatories. These objects are collections of up to thousands of g...
متن کاملRadio Relics in Clusters of Galaxies
In this paper we review the observational results on Relic radio sources in clusters of galaxies. We discuss their observational properties, structures and radio spectra. We will show that Relics can be divided according to their size, morphology, and location in the galaxy cluster. These differences could be related to physical properties of Relic sources. The comparison with cluster condition...
متن کاملBuoyant radio plasma in clusters of galaxies
Radio galaxies are known to inflate lobes of hot relativistic plasmas into the intergalactic medium. Here we present hydrodynamical and magnetohydrodynamical simulations of these hot plasma bubbles in FRII objects. We focus on the later stages of their evolution after the jet has died down and after the bow shock that surrounded the lobes at earlier stages has vanished. We investigate the evolu...
متن کاملRadio Bubbles in Clusters of Galaxies
We extend our earlier work on cluster cores with distinct radio bubbles, adding more active bubbles, i.e. those with GHz radio emission, to our sample, and also investigating “ghost bubbles,” i.e. those without GHz radio emission. We have determined k, which is the ratio of the total particle energy to that of the electrons radiating between 10 MHz and 10 GHz. Constraints on the ages of the act...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Open Astronomy
سال: 1997
ISSN: 2543-6376
DOI: 10.1515/astro-1997-0221