Blazar
A blazar is a very compact and highly variable energy source associated with a supermassive black hole at the center of a host galaxy.
Blazars - a New Type of Powerful Quasar
are the extremely bright cores in a small fraction of very distant . They are visible at or energies.
Blazars have the following characteristics:
It appears point-like on the sky. (Some have fuzzy nebulae around them, but most of the radiation comes from a point source.)
They have a "smooth" spectrum, i.e.
Blazar
Wikipedia, the free encyclopedia - Cite This Source
A blazar is a very compact and highly variable energy source associated with a supermassive black hole at the center of a host galaxy.
blazar
a high-energy, variable type of quasar which astronmers believe has a jet of material aimed in our direction that causes it to appear more energetic than other quasars
blink comparator ...
Blazar or BL Lac Object: Objects that resemble quasars; thought to be the cores of highly luminous galaxies aligned so they are viewed directly down into the heart of the system.
Blazar- a type of active galaxy that is angled in such a way to us that we look almost directly at its accretion disk and jet ...
Blazar - A type of active galaxy named for BL Lacertae, the first of the type discovered. Blazars show rapid, unpredictable variations in brightness ...
blazar: See BL Lac objects.
blueshift: The shortening of the wavelengths of light observed when the source and observer are approaching each other.
Blazar
(a) A highly variable active galaxy which, in general, displays no emission lines in its spectrum.
(b) A term collectively used to refer to Optically Violent Variables (OVVs) and BL Lac objects.
Blazars are members of the family of active galactic nuclei and quasars, defined specifically by their strong optical Polarization and variability.
BLAZAR
A blazar is a type of extreme .
RADIO GALAXY
Radio Galaxy Cygnus A (photo by , NASA), a powerful radio type II radio source 700 million light-years from Earth.
blazars a class of active galaxies that exhibit rapidly variable emission from the radio through gamma-ray band. The radiation is predominantly from jets moving near the speed of light.
Blazars are a class of AGN that are radio sources and consist of both Optically Violent Variables (OVVs) and BL Lac objects. They are highly variable AGN that do not display emission lines in their spectra.
BLAZAR
A blazar is a type of extreme . These extremely energetic objects emit jets of gamma rays and other electromagnetic radiation.
blazars (NASA Thesaurus) Strongly optical polarized active galactic nuclei objects exhibiting BL Lacertae-like and quasar-like characteristics.
BL Lac Object (also Blazar): A type of active galaxy characterized by very rapid (day to day) variability by large percentages in total luminosity, no emission lines, strong nonthermal radiation, and starlike appearance.
AGN are found at the heart of active galaxies, including quasars, Seyfert galaxies, blazars, and radio galaxies. In addition to their great energy output, they can be highly variable.
Radio galaxies and their relatives, radio-loud quasars and blazars, are types of active galaxy that are very luminous at radio wavelengths (up to 1038 W between 10 MHz and 100 GHz). The radio emission is due to the synchrotron process.
BL Lac Galaxies, which are also called blazars, were misnamed. The first one discovered was given a star name (BL Lac), in particular a name associated with stars that change brightness.
It is in fact the prototypical blazar (blazing quasi-stellar object), a highly compact quasar associated with a supermassive black hole presumed to be lying at the core of an active giant elliptical galaxy.
Further careful observations have shown that blazars reside at the centers of relatively normal elliptical galaxies. We consider these galaxies active because of the tremendous strength of the blazar radio emission.
Scanning the entire sky every three hours, Fermi's LAT has been mapping the gamma ray Universe in unprecedented detail, probing the "extreme Universe" to previously unseen depths. Amongst the bounty are numerous blazars, ...
The CGRO led to the discovery of blazars. CGRO was named to honor Dr. Arthur Holly Compton, who studied the scattering of high-energy photons by electrons. It will fall into the remote Pacific on June 3, 2000.
In any case, at the present time, this accreting-black-hole model is accepted as an explanation for the behavior of quasars, radio galaxies, and blazars, known collectively as active galactic nuclei (AGNs), ...
It became the founding member of the "BL Lac Objects," or "blazars" as they are sometimes called. The variable jet turns out to be pointed right at Earth, and thus "blazingly" bright.
Extended emission around blazars, while requiring high dynamic range to see in the presence of the strong core, is typically of about the luminosity and extent we'd see from FR I lobes seen end-on, ...
 See also: Energy, Universe, Galaxy, Black Hole, Galaxies
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