Soft X-ray observations of two BL Lacertae objects - Markarian 421 and 501

1985 ◽  
Vol 297 ◽  
pp. 199 ◽  
Author(s):  
K. P. Singh ◽  
G. P. Garmire
Keyword(s):  
Bl Lacertae Objects ◽  
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

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

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

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

Variable X-ray spectra of BL Lacertae objects - HEAO 1 observations of PKS 0548 - 322 and 2A 1219 + 305

1981 ◽  
Vol 243 ◽  
pp. 53 ◽  
Author(s):  
D. M. Worrall ◽  
E. A. Boldt ◽  
S. S. Holt ◽  
R. F. Mushotzky ◽  
P. J. Serlemitsos
Keyword(s):  
Bl Lacertae Objects ◽  
X Ray ◽  
Bl Lacertae

Two X-ray-selected BL Lacertae objects observed with the HEAO 1 scanning modulation collimator

1989 ◽  
Vol 345 ◽  
pp. 140 ◽  
Author(s):  
R. A. Remillard ◽  
I. R. Tuohy ◽  
R. J. V. Brissenden ◽  
D. A. H. Buckley ◽  
D. A. Schwartz ◽  
...  
Keyword(s):  
Bl Lacertae Objects ◽  
X Ray ◽  
Bl Lacertae ◽  
Modulation Collimator

The luminosity function and cosmological evolution of X-ray-selected BL Lacertae objects

1991 ◽  
Vol 380 ◽  
pp. 49 ◽  
Author(s):  
Simon L. Morris ◽  
John T. Stocke ◽  
Isabella M. Gioia ◽  
Rudy E. Schild ◽  
Anna Wolter ◽  
...  
Keyword(s):  
Luminosity Function ◽  
Cosmological Evolution ◽  
Bl Lacertae Objects ◽  
X Ray ◽  
Bl Lacertae
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