scholarly journals Two‐dimensional Photometric Decomposition of the TeV BL Lacertae Objects Markarian 421, Markarian 501, and 1ES 2344+514

1999 ◽  
Vol 111 (764) ◽  
pp. 1223-1232 ◽  
Author(s):  
 K. Nilsson ◽  
T. Pursimo ◽  
L. O. Takalo ◽  
A. Sillanpää ◽  
H. Pietilä ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Bl Lacertae Objects ◽  
Markarian 421 ◽  
Bl Lacertae

On the composite nature of the BL Lacertae objects Markarian 421 and 501

1978 ◽  
Vol 224 ◽  
pp. 368 ◽  
Author(s):  
J. Maza ◽  
P. G. Martin ◽  
J. R. P. Angel
Keyword(s):  
Bl Lacertae Objects ◽  
Markarian 421 ◽  
Bl Lacertae ◽  
Composite Nature

X-ray emission from BL-Lacertae objects. II - The nature of Markarian 421

1978 ◽  
Vol 83 ◽  
pp. 1021 ◽  
Author(s):  
B. Margon ◽  
T. W. Jones ◽  
J. F. C. Wardle
Keyword(s):  
Bl Lacertae Objects ◽  
Markarian 421 ◽  
X Ray ◽  
Bl Lacertae

scholarly journals Astrophysical implications of binary black holes in BL Lacertae objects

2002 ◽  
Vol 388 (2) ◽  
pp. 470-476 ◽  
Author(s):  
F. De Paolis ◽  
G. Ingrosso ◽  
A. A. Nucita
Keyword(s):  
Black Holes ◽  
Bl Lacertae Objects ◽  
Binary Black Holes ◽  
Bl Lacertae

scholarly journals Longterm optical monitoring of bright BL Lacertae objects with ATOM: Spectral variability and multiwavelength correlations

2014 ◽  
Vol 573 ◽  
pp. A69 ◽  
Author(s):  
Alicja Wierzcholska ◽  
Michał Ostrowski ◽  
Łukasz Stawarz ◽  
Stefan Wagner ◽  
Marcus Hauser
Keyword(s):  
Optical Monitoring ◽  
Spectral Variability ◽  
Bl Lacertae Objects ◽  
Bl Lacertae

scholarly journals Polarization VLBI Observations of a Complete Sample of Northern BL Lacertae Objects

1998 ◽  
Vol 164 ◽  
pp. 165-166
Author(s):  
A. B. Pushkarev ◽  
D. C. Gabuzda
Keyword(s):  
Magnetic Field ◽  
Radio Emission ◽  
Synchrotron Emission ◽  
Complete Sample ◽  
Bl Lacertae Objects ◽  
Bl Lacertae ◽  
Vlbi Observations ◽  
Core Components ◽  
Jet Structure ◽  
The Magnetic Field

AbstractThe polarization electric vectors in the VLBI jets of BL Lacertae objects are typically aligned with the jet structure. If the jet radio emission is optically thin synchrotron emission, this implies that the magnetic field is perpendicular to the jet, usually interpreted as a signature of shocks. The distribution of polarization position angles in the VLBI core components appears to be bimodal, with the polarization angles either aligned with or perpendicular to the jet direction. In order to study the origin of this characteristic polarization structure, we have made VLBI polarization observations of all 34 sources in the Kühr and Schmidt sample of BL Lacertae objects.

scholarly journals An active state of the BL Lacertae object Markarian 421 detected by INTEGRAL in April 2013

2014 ◽  
Vol 570 ◽  
pp. A77 ◽  
Author(s):  
E. Pian ◽  
M. Türler ◽  
M. Fiocchi ◽  
R. Boissay ◽  
A. Bazzano ◽  
...  
Keyword(s):  
Active State ◽  
Markarian 421 ◽  
Bl Lacertae

scholarly journals Host galaxy subtraction of TeV candidate BL Lacertae objects

2007 ◽  
Vol 475 (1) ◽  
pp. 199-207 ◽  
Author(s):  
K. Nilsson ◽  
M. Pasanen ◽  
L. O. Takalo ◽  
E. Lindfors ◽  
A. Berdyugin ◽  
...  
Keyword(s):  
Host Galaxy ◽  
Bl Lacertae Objects ◽  
Bl Lacertae

scholarly journals The intraday variability in the radio-selected and X-ray-selected BL Lacertae objects

1998 ◽  
Vol 132 (1) ◽  
pp. 83-92 ◽  
Author(s):  
J. M. Bai ◽  
G. Z. Xie ◽  
K. H. Li ◽  
X. Zhang ◽  
W. W. Liu
Keyword(s):  
Bl Lacertae Objects ◽  
X Ray ◽  
Bl Lacertae ◽  
Intraday Variability
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