ETIMOLOGIA DA PALAVRA BL LAC OBJECT
Named after BL Lacertae, first identified example found in the constellation Lacerta and originally thought to be a variable star.
O QUE SIGNIFICA BL LAC OBJECT EM INGLÊS
BL Lac objeto
Um objeto BL Lacertae ou objeto BL Lac é um tipo de galáxia ativa com um núcleo galáctico ativo e é nomeado após seu protótipo, BL Lacertae. Em contraste com outros tipos de núcleos galácticos ativos, BL Lacs são caracterizados por variabilidade de fluxo de grande amplitude rápida e polarização óptica significativa. Por causa dessas propriedades, o protótipo da classe foi originalmente considerado como uma estrela variável. Quando comparados aos núcleos ativos mais luminosos com fortes linhas de emissão, os objetos BL Lac possuem espectros dominados por um contínuo não térmico sem característica. No esquema unificado de núcleos galácticos ativos radio-ruidosos, a fenomenologia nuclear observada de BL Lacs é interpretada como sendo devida aos efeitos do jato relativista que está alinhado de perto com a linha de visão do observador. Considera-se que BL Lacs é intrinsecamente idêntico às galáxias de rádio de baixa potência. Esses núcleos ativos são hospedados em galáxias esferoidais maciças. Do ponto de classificação da AGN, BL Lacs é um subtipo blazar. Todos os BL Lacs conhecidos estão associados a fontes de rádio dominadas pelo núcleo, muitas delas exibindo movimento superluminal.
definição de BL Lac object no dicionário inglês
A definição de BL Lac objeto no dicionário é uma forma extremamente compacta e variável de galaxy ativa.
PALAVRAS EM INGLÊS RELACIONADAS COM «BL LAC OBJECT»
BL Lac object ·
object ·
lacertae ·
type ·
active ·
galaxy ·
with ·
galactic ·
nucleus ·
named ·
after ·
prototype ·
contrast ·
other ·
types ·
nuclei ·
lacs ·
characterized ·
rapid ·
large ·
amplitude ·
celestial ·
extremely ·
compact ·
violently ·
form ·
first ·
identified ·
example ·
found ·
here ·
following ·
description ·
full ·
spectrum ·
markarian ·
illustrating ·
looking ·
down ·
into ·
very ·
heart ·
system ·
right ·
since ·
science ·
encyclopedia ·
nothing ·
travel ·
faster ·
than ·
speed ·
light ·
including ·
whatever ·
signal ·
mechanism ·
causes ·
change ·
brightness ·
therefore ·
wiktionary ·
plural ·
astronomy ·
oxford ·
dictionaries ·
british ·
world ·
meaning ·
pronunciation ·
sentences ·
reference ·
state ·
detected ·
integral ·
april ·
pian ·
inaf ·
iasfbo ·
infn ·
pisa ·
vlbi ·
observations ·
prototypical ·
cygnus ·
author ·
bach ·
institution ·
universität ·
bonn ·
nrao ·
image ·
gallery ·
images ·
obtained ·
gómez ·
agudo ·
marscher ·
alberdi ·
gabuzda ·
provide ·
highest ·
resolution ·
this ·
home ·
protype ·
which ·
however ·
similiarities ·
exploring ·
bulk ·
population ·
parsec ·
10 LIVROS EM INGLÊS RELACIONADOS COM «BL LAC OBJECT»
Descubra o uso de
BL Lac object na seguinte seleção bibliográfica. Livros relacionados com
BL Lac object e pequenos extratos deles para contextualizar o seu uso na literatura.
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.
Frederic P. Miller, Agnes F. Vandome, McBrewster John,
2010
2
Variability of Blazars: Proceedings of a Conference in ...
... blazars, HPV, or OVV. In each case we have given the appropriate references
with sources listed at the end of the table. In our earlier lists we attempted to
restrict the objects to those strictly following the original definition of a BL Lac
object.
E. VALTAOJA (Ed), Mauri J. Valtonen,
1992
3
Galaxies in Turmoil: The Active and Starburst Galaxies and ...
The emission lines tend to be seen when the BL Lac object itself is faint,
suggesting that they are always present but are swamped by the continuous
emission when the BL Lac object is bright. Clearly, if a BL Lac object were to be
observed ...
4
Issues in Astronomy and Astrophysics: 2011 Edition
We then compared the jet kinematics with the optical and radio light curves
available for this BL Lac object and point out some striking correlations between
the properties of the radio knots and the features in the light curves. We found a ...
5
The Physical Universe: An Introduction to Astronomy
That we can see much further into the heart of a BL Lac object than into a Seyfert
argues that the former is surrounded by much less gas and dust. Such a
conclusion would be compatible with BL Lac objects' being elliptical galaxies and
...
... at half-maximum Galaxy Evolution Explorer Galactic black hole GigahertZ-
peaked spectrum source High-frequency cutoff BL Lac object/high frequency
peaked BL Lac object EINSTEIN satellite Hamburg/ESO Survey Highly polarized
quasar ...
Volker Beckmann, Chris Shrader,
2013
7
VLBI and Compact Radio Sources
MULTIFREQUENCY OBSERVATIONS OF THE BL LAC OBJECT 1219+28 gonna
Weistrop , David B. Shaffer"1" and Paul Hintzen Lab. for Astronomy and Solar
Physics, Goddard Space Flight Center Interferometrics, Inc. The BL Lac object ...
Roberto Fanti, K. Kellerman, Giancarlo Setti,
1984
8
Exploring the X-ray Universe
... are essentially normal spiral galaxies that have a bright nucleus. But the
absence of emission lines is a puzzle that is still not understood. The most widely
accepted model of a BL Lac object is that it is an AGN in which the jet is pointing
...
Philip A. Charles, Frederick D. Seward,
1995
Other sources display an outburst behavior, which can be interpreted as a source
crossing a caustic; such an explanation has been postulated for the eruptive BL
Lac object 0846+51 [NO86.1], which is also known to be near a foreground ...
P. Schneider, J. Ehlers, E.E. Falco,
1999
10
Supermassive Black Holes: Proceedings of the Third George ...
For example, as mentioned earlier, 1156+295 is an OW that looks like a BL Lac
object in its polarization properties when it is undergoing an outburst. We are
conducting a polarimetric survey of HPQs through broad-band (UBVRI) filters
with ...
2 NOTÍCIAS NAS QUAIS SE INCLUI O TERMO «BL LAC OBJECT»
Conheça de que se fala nos meios de comunicação nacionais e internacionais e como se utiliza o termo
BL Lac object no contexto das seguintes notícias.
Black hole "batteries" keep blazars going and going
... despite a lower accretion rate, allows it to continue operating its particle jet and producing high-energy emissions as a BL Lac object. «Astronomy Magazine, jun 14»
Black hole 'batteries' keep blazars going and going
... despite a lower accretion rate, allows it to continue operating its particle jet and producing high-energy emissions as a BL Lac object. «ScienceBlog.com, jun 14»