A unified relativistic beaming model for BL Lacertae objects and flat spectrum radio quasars

1994 ◽  
Vol 436 ◽  
pp. 79 ◽  
Author(s):  
Laura Maraschi ◽  
Fausto Rovetti
Keyword(s):  
Bl Lacertae Objects ◽  
Bl Lacertae ◽  
Relativistic Beaming ◽  
Spectrum Radio

Radio Constraints on Relativistic Beaming Models of BL Lacertae Objects

1996 ◽  
Vol 465 ◽  
pp. 115 ◽  
Author(s):  
R. I. Kollgaard ◽  
C. Palma ◽  
S. A. Laurent-Muehleisen ◽  
E. D. Feigelson
Keyword(s):  
Bl Lacertae Objects ◽  
Bl Lacertae ◽  
Relativistic Beaming

Relativistic Beaming and Orientation Effects in BL Lacertae Objects

2012 ◽  
Vol 33 (3) ◽  
pp. 279-290 ◽  
Author(s):  
F. C. Odo ◽  
A. A. Ubachukwu ◽  
A. E. Chukwude
Keyword(s):  
Bl Lacertae Objects ◽  
Bl Lacertae ◽  
Orientation Effects ◽  
Relativistic Beaming

scholarly journals The De-beamed γ-Ray Emissions in Blazars

2013 ◽  
Vol 9 (S304) ◽  
pp. 159-160 ◽  
Author(s):  
J. H. Fan ◽  
Z. Y. Ji
Keyword(s):  
Flux Density ◽  
Strong Correlations ◽  
Bl Lacertae Objects ◽  
Present Sample ◽  
Bl Lacertae ◽  
Spectrum Radio ◽  
Γ Ray

AbstractBlazars (BL Lacertae objects and flat spectrum radio quasars) are strong γ-ray emitters, the γ-ray emissions are strongly beamed. In this work, we compiled a sample of Fermi blazars with available beaming factors, δR, to investigate the correlation between the γ-ray flux density, logfγ, and redshift, logz for the whole sample and the subclasses of the present sample. The analysis shows that there is no correlation between logfγ and logz for the observed γ-ray flux density, but there are strong correlations between the de-beamed flux densities, logfγdb and logz for the whole sample and the subclasses. Our results confirm that the γ-ray emissions are strongly beamed and imply that it is possible for one to use the radio beaming factor, δR for the beaming effect discussions in the γ-ray bands for Fermi blazars.

Correlation between Eddington Ratios and Broad-Line Luminosities in Flat-Spectrum Radio Quasars, BL Lacertae Objects, and Radio Galaxies

2007 ◽  
Vol 133 (5) ◽  
pp. 2187-2191 ◽  
Author(s):  
H. Dai ◽  
G. Z. Xie ◽  
S. B. Zhou ◽  
H. Z. Li ◽  
L. E. Chen ◽  
...  
Keyword(s):  
Radio Galaxies ◽  
Broad Line ◽  
Bl Lacertae Objects ◽  
Bl Lacertae ◽  
Spectrum Radio

scholarly journals A Comparison of the Centimetre-to-Submillimetre Continuum Spectra of BL Lacertae Objects and Flat Spectrum Radio Quasars

1994 ◽  
Vol 159 ◽  
pp. 523-523
Author(s):  
J.A. Stevens ◽  
S.J. Litchfield ◽  
E.I. Robson ◽  
W. K. Gear ◽  
D.H. Hughes
Keyword(s):  
High Frequency ◽  
Spectral Shape ◽  
Continuum Emission ◽  
Frequency Range ◽  
Frequency Spectra ◽  
Bl Lacertae Objects ◽  
Bl Lacertae ◽  
Spectrum Radio ◽  
Bl Lacs ◽  
The Continuum

A comparison of the centimetre to submillimetre continuum spectra of 22 BL Lacertae objects and 24 flat-spectrum radio quasars (FSRQ) has been conducted in order to search for systematic differences between the two classes. The same overall spectral shape is found for all sources and it is concluded that the same basic physical model applies to the continuum emission over this frequency range in both cases. There is clear evidence, however, for the BL Lacs to have flatter high frequency spectra and this difference is reconciled with an intrinsic difference in the underlying jets of the two classes.

X-rays and relativistic beaming in radio-selected BL Lacertae objects

1994 ◽  
Author(s):  
R. I. Kollgaard ◽  
E. D. Feigelson ◽  
D. C. Gabuzda ◽  
R. M. Sambruna ◽  
C. M. Urry
Keyword(s):  
X Rays ◽  
Bl Lacertae Objects ◽  
Bl Lacertae ◽  
Relativistic Beaming
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