scholarly journals The Hot Disk Corona and Magnetic Turbulence in Radio-quiet Active Galactic Nuclei: Observational Constraints

2004 ◽  
Vol 607 (2) ◽  
pp. L107-L110 ◽  
Author(s):  
Jian-Min Wang ◽  
Ken-Ya Watarai ◽  
Shin Mineshige
Keyword(s):  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Observational Constraints ◽  
Magnetic Turbulence ◽  
Hot Disk

scholarly journals Mass outflow constraints in active nuclei and quasars from X-ray spectroscopy

2007 ◽  
Vol 3 (S245) ◽  
pp. 263-268
Author(s):  
Tahir Yaqoob
Keyword(s):  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Host Galaxy ◽  
Observational Constraints ◽  
X Ray ◽  
Outflow Rate ◽  
Mass Outflow ◽  
Physical Information

AbstractAbsorption in the X-ray spectra of active galactic nuclei from outflowing gas can be modeled to yield critical physical information on the outflows. The outflow rate of mass ejected back into the ISM of the host galaxy and the resulting feedback could potentially have an impact on evolution. We give a brief overview of the current observational constraints on the outflows that should be taken into account by models of evolution and feedback.

scholarly journals Observational constraints on the physics behind the evolution of active galactic nuclei since z∼ 1

2011 ◽  
Vol 418 (4) ◽  
pp. 2590-2603 ◽  
Author(s):  
A. Georgakakis ◽  
A. L. Coil ◽  
C. N. A. Willmer ◽  
K. Nandra ◽  
D. D. Kocevski ◽  
...  
Keyword(s):  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Observational Constraints

scholarly journals Observational Constraints on Correlated Star Formation and Active Galactic Nuclei in Late-stage Galaxy Mergers

2017 ◽  
Vol 850 (1) ◽  
pp. 27 ◽  
Author(s):  
R. Scott Barrows ◽  
Julia M. Comerford ◽  
Nadia L. Zakamska ◽  
Michael C. Cooper
Keyword(s):  
Star Formation ◽  
Active Galactic Nuclei ◽  
Late Stage ◽  
Galactic Nuclei ◽  
Observational Constraints ◽  
Galaxy Mergers

Stellar and galactic jets: theoretical issues

1986 ◽  
Vol 64 (4) ◽  
pp. 362-368 ◽  
Author(s):  
Arieh Königl
Keyword(s):  
Active Galactic Nuclei ◽  
Molecular Cloud ◽  
Galactic Nuclei ◽  
Young Stellar Objects ◽  
Observational Constraints ◽  
Stellar Objects ◽  
Physical Mechanisms ◽  
Stellar Jets ◽  
Propagation Effects ◽  
Theoretical Issues

Theoretical issues pertaining to the modelling of jets in young stellar objects and in active galactic nuclei are reviewed. The strong morphological similarities between these two types of sources are emphasized, and observational constraints on the basic physical mechanisms that may be responsible for the jet phenomenon are outlined. Particular attention is given to the "momentum-discharge problem" in molecular-cloud outflows and to its possible resolution in terms of a centrifugally driven magnetohydrodynamic wind from an accretion disk. In addition, various propagation effects are discussed, and the relevance to stellar jets of the de Laval collimation mechanism and of the accelerated-clump model for emission knots is assessed. The review concludes with a brief list of potentially useful observational tests.

INVESTIGATION OF INTRADAY VARIABILITY OF ACTIVE GALACTIC NUCLEI IN OPTICAL AND RADIO RANGES

2010 ◽  
Vol 1 (2) ◽  
pp. 111-115
Author(s):  
O. E. Volvach ◽  
L. N. Volvach ◽  
V. S. Bichkova ◽  
M. S. Kardashev ◽  
M. G. Larionov ◽  
...  
Keyword(s):  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
Intraday Variability

Hubble Space Telescopeand Ground‐based Observations of I Zw 1 and MRK 486 and the Variability of Polarization in Radio‐quiet Active Galactic Nuclei

1997 ◽  
Vol 488 (1) ◽  
pp. 202-215 ◽  
Author(s):  
Paul S. Smith ◽  
Gary D. Schmidt ◽  
Richard G. Allen ◽  
Dean C. Hines
Keyword(s):  
Active Galactic Nuclei ◽  
Galactic Nuclei

Polarization Variability of Active Galactic Nuclei and X‐Ray Binaries

1997 ◽  
Vol 487 (1) ◽  
pp. 142-152 ◽  
Author(s):  
Gang Bao ◽  
Petr Hadrava ◽  
Paul J. Wiita ◽  
Ying Xiong
Keyword(s):  
Active Galactic Nuclei ◽  
Galactic Nuclei ◽  
X Ray ◽  
X Ray Binaries
Sign in / Sign up

Export Citation Format

Share Document