Blazar

Blazars are members of a larger group of Active Galaxies, also termed Active Galactic Nuclei (AGN).

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.

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.

BLAZAR A blazar is a type of extreme quasar. RADIO GALAXY Radio Galaxy Cygnus A (photo by HST, NASA), a powerful radio type II radio source 700 million light-years from Earth.

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 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 named for BL Lacertae, the first of the type discovered. Blazars show rapid, unpredictable variations in brightness Bow Shock - The region where the solar wind is slowed as it impinges on the Earth's magnetosphere ...

BLAZAR A blazar is a type of extreme . These extremely energetic objects emit jets of gamma rays and other electromagnetic radiation.

blazar Particularly intense active galactic nucleus in which the observer's line of sight happens to lie directly along the axis of a high-speed jet of particles emitted from the active region. blue giant ...

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' (BL Lac objects and OVV quasars). These classes are distinguished by rapidly variable, polarized optical, radio and X-ray emission.

Robert Antonucci Blazars are members of the family of active galactic nuclei and quasars, defined specifically by their strong optical Polarization and variability.

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.

Three types of active galaxies are Seyfert Galaxies, quasars, and blazars. Many active galaxies are also radio galaxies. altitude The measurement, usually in degrees, of an object's apparent height above the horizon.

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.

Blazars are believed to be an active galaxy with a relativistic jet that is pointed in the direction of the Earth. A radio galaxy emits radio frequencies from relativistic jets.

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.

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, ...

blazars (NASA Thesaurus) Strongly optical polarized active galactic nuclei objects exhibiting BL Lacertae-like and quasar-like characteristics.

See also: Galaxy, X-ray, Universe, Energy, Black Hole