[ITAL]ASCA[/ITAL] Observation of an X-Ray/TeV Flare from the BL Lacertae Object Markarian 421

1996 ◽  
Vol 470 (2) ◽  
pp. L89-L92 ◽  
Author(s):  
T. Takahashi ◽  
M. Tashiro ◽  
G. Madejski ◽  
H. Kubo ◽  
T. Kamae ◽  
...  
Keyword(s):  
Markarian 421 ◽  
X Ray ◽  
Bl Lacertae

FUSEObservations of Interstellar and Intergalactic Absorption toward the X‐Ray–bright BL Lacertae Object Markarian 421

2005 ◽  
Vol 619 (2) ◽  
pp. 863-883 ◽  
Author(s):  
Blair D. Savage ◽  
Bart P. Wakker ◽  
Andrew J. Fox ◽  
Kenneth R. Sembach
Keyword(s):  
Markarian 421 ◽  
X Ray ◽  
Bl Lacertae

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

X‐Ray Absorption in the BL Lacertae Object PKS 0548−322

1998 ◽  
Vol 502 (2) ◽  
pp. 630-639 ◽  
Author(s):  
Rita M. Sambruna ◽  
Richard F. Mushotzky
Keyword(s):  
X Ray ◽  
Bl Lacertae ◽  
X Ray Absorption

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 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

scholarly journals X‐Ray Flaring Activity of Markarian 421

2004 ◽  
Vol 605 (2) ◽  
pp. 662-669 ◽  
Author(s):  
Wei Cui
Keyword(s):  
Markarian 421 ◽  
X Ray

Two new BL Lacertae objects discovered in the error boxes of hard X-ray sources

2005 ◽  
pp. 257-260
Author(s):  
G. Tagliaferri ◽  
P. Giommi ◽  
K. Beuermann ◽  
G. Branduardi-Raymont ◽  
R. Brissenden ◽  
...  
Keyword(s):  
Bl Lacertae Objects ◽  
X Ray ◽  
Bl Lacertae

Simultaneous X-Ray and T[CLC]e[/CLC]V Observations of a Rapid Flare from Markarian 421

1999 ◽  
Vol 526 (2) ◽  
pp. L81-L84 ◽  
Author(s):  
L. Maraschi ◽  
G. Fossati ◽  
F. Tavecchio ◽  
L. Chiappetti ◽  
A. Celotti ◽  
...  
Keyword(s):  
Markarian 421 ◽  
X Ray

The redshift of the X-ray selected BL Lacertae object H0414 + 009

1991 ◽  
Vol 101 ◽  
pp. 818 ◽  
Author(s):  
Jules P. Halpern ◽  
Vera S. Chen ◽  
Greg M. Madejski ◽  
Gary A. Chanan
Keyword(s):  
X Ray ◽  
Bl Lacertae
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