The continuous spectrum of Markarian 421 during periods of X-ray satellite observations

1980 ◽  
Vol 241 ◽  
pp. 74 ◽  
Author(s):  
S. L. Mufson ◽  
K. Wood ◽  
D. P. McNutt ◽  
D. J. Yentis ◽  
J. F. Meekins ◽  
...  
Keyword(s):  
Continuous Spectrum ◽  
Satellite Observations ◽  
Markarian 421 ◽  
X Ray

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

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

A change in the X-ray spectrum of Markarian 421

1979 ◽  
Vol 232 ◽  
pp. L17 ◽  
Author(s):  
R. F. Mushotzky ◽  
E. A. Boldt ◽  
S. S. Holt ◽  
P. J. Serlemitsos
Keyword(s):  
Markarian 421 ◽  
X Ray

Correlated X-ray and TeV variability in Markarian 421

2004 ◽  
Vol 48 (5-6) ◽  
pp. 419-422 ◽  
Author(s):  
G. Fossati ◽  
J. Buckley ◽  
R.A. Edelson ◽  
D. Horns ◽  
M. Jordan
Keyword(s):  
Markarian 421 ◽  
X Ray

Structural study of galactic hot gas toward Markarian 421 from X-ray absorption and emission lines

2012 ◽  
Author(s):  
K. Sakai ◽  
K. Mitsuda ◽  
N. Y. Yamasaki ◽  
Y. Takei ◽  
Y. Yao ◽  
...  
Keyword(s):  
Structural Study ◽  
Emission Lines ◽  
Markarian 421 ◽  
Absorption And Emission ◽  
X Ray ◽  
Hot Gas ◽  
X Ray Absorption

scholarly journals Discovery of a high confidence soft lag from an X-ray flare of Markarian 421

2010 ◽  
Vol 53 (S1) ◽  
pp. 224-227 ◽  
Author(s):  
YouHong Zhang ◽  
ZhengTian Hou ◽  
Li Shao ◽  
Peng Zhang
Keyword(s):  
High Confidence ◽  
Markarian 421 ◽  
X Ray

scholarly journals The absorption of the radiation emitted by a palladium anticathode in rhodium, palladium and silver

1918 ◽  
Vol 94 (661) ◽  
pp. 339-352 ◽  
Keyword(s):  
Crystal Structure ◽  
Continuous Spectrum ◽  
Grazing Angle ◽  
Full Description ◽  
Absorption Coefficients ◽  
Crystal Face ◽  
Characteristic Wave ◽  
X Ray ◽  
Ionisation Chamber

The analysis of a beam of rays from an X-ray bulb by reflection at a crystal face shows that the bulb emits a continuous spectrum of radiation upon which are superposed a few wave-lengths which stand out prominently from the rest, these being the characteristic wave-lengths of the metal of the anticathode. Much note has not been taken hitherto of the general radiation, more attention having been paid to that part of the spectrum in the immediate vicinity of the characteristic rays. In the present work an attempt is made to obtain fuller knowledge of the general radiation by studying the absorption coefficients of the rays in the three elements rhodium, palladium, and silver. In the particular bulb chosen, palladium is used as the metal of the anticathode. Apparatus . The apparatus used in the investigation is the Bragg X-ray spectrometer, a full description of which may be found in Bragg’s book on “X-ray and Crystal Structure,” p. 22 et seq . A beam of rays, leaving the anticathode at a grazing angle, passes through two slits before falling on the crystal. The slit nearer to the crystal is movable and can be brought up very close to the crystal. After reflection, the beam passes through a third slit on its way to the ionisation chamber. We shall allude to these three slits as the bulb slit, crystal slit, and chamber slit respectively.

Simultaneous X‐Ray and TeV Gamma‐Ray Observation of the TeV Blazar Markarian 421 during 2000 February and May

2001 ◽  
Vol 559 (1) ◽  
pp. 187-195 ◽  
Author(s):  
H. Krawczynski ◽  
R. Sambruna ◽  
A. Kohnle ◽  
P. S. Coppi ◽  
F. Aharonian ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Markarian 421 ◽  
X Ray

Complex X‐Ray Spectral Variability in Markarian 421 Observed withXMM‐Newton

2002 ◽  
Vol 574 (2) ◽  
pp. 634-642 ◽  
Author(s):  
S. Sembay ◽  
R. Edelson ◽  
A. Markowitz ◽  
R. G. Griffiths ◽  
M. J. L. Turner
Keyword(s):  
Spectral Variability ◽  
Markarian 421 ◽  
X Ray
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