Quadrupole spin echo for broad absorption lines

1969 ◽  
Vol 12 (9) ◽  
pp. 1121-1122
Author(s):  
V. S. Grechishkin ◽  
E. M. Shishkin
Keyword(s):  
Spin Echo ◽  
Absorption Lines ◽  
Broad Absorption ◽  
Quadrupole Spin ◽  
Broad Absorption Lines

scholarly journals VARIABLE REDDENING AND BROAD ABSORPTION LINES IN THE NARROW-LINE SEYFERT 1 GALAXY WPVS 007: AN ORIGIN IN THE TORUS

2015 ◽  
Vol 809 (1) ◽  
pp. L13 ◽  
Author(s):  
Karen M. Leighly ◽  
Erin Cooper ◽  
Dirk Grupe ◽  
Donald M. Terndrup ◽  
S. Komossa
Keyword(s):  
Absorption Lines ◽  
Narrow Line ◽  
Broad Absorption ◽  
Broad Absorption Lines

The Disappearing Broad Absorption Lines and Variable Emission Lines in NGC 3516

1996 ◽  
Vol 470 ◽  
pp. 378 ◽  
Author(s):  
Anuradha Koratkar ◽  
Michael R. Goad ◽  
Paul T. O'Brien ◽  
Isabel Salamanca ◽  
Ignaz Wanders ◽  
...  
Keyword(s):  
Emission Lines ◽  
Absorption Lines ◽  
Broad Absorption ◽  
Broad Absorption Lines

scholarly journals Velocity shift of Mg ii and Al iii broad absorption lines in quasar SDSS J134444.33+315007.6

2020 ◽  
Vol 499 (1) ◽  
pp. L58-L61
Author(s):  
Wei-Jian Lu ◽  
Ying-Ru Lin
Keyword(s):  
Rest Frame ◽  
Background Radiation ◽  
Radiation Energy ◽  
Absorption Lines ◽  
Broad Absorption ◽  
Velocity Shift ◽  
System A ◽  
Variation Characteristics ◽  
Broad Absorption Lines ◽  
First Time

ABSTRACT We report, for the first time, a synchronized velocity shift of Mg ii and Al iii broad absorption lines (BALs) in quasar SDSS J134444.33+315007.6 (hereafter, J1344+3150). We found this quasar from a sample of 134 Mg ii BAL quasars with multi-epoch observations. This quasar contains three low-ionization BAL systems, the fastest of which at ${\sim} -17\, 000\, \rm km\, s^{-1}$ shows a kinematic shift of ${\sim} -1101$ and $\sim -1170\, \rm km\, s^{-1}$ in its Mg ii and Al iii ions, respectively, during a rest-frame time of about 3.21 yr. Meanwhile, this quasar also shows other various variation characteristics, including an obvious weakening in its continuum, a coordinated enhancement in multiple emission lines (Mg ii, C iii, and Al iii), and a coordinated enhancement in three Al iii absorption troughs. These variation characteristics convincingly indicate that the BAL outflows of J1344+3150 are under the influence from the background radiation energy. Thus, we infer that the velocity shift displayed in system A in the quasar J1344+3150 may indicate an actual line-of-sight acceleration of an outflow due to the radiation pressure from the central source.

scholarly journals Modeling Line-Driven Disk Wind for Broad Absorption Lines of Quasars

2013 ◽  
Vol 65 (2) ◽  
pp. 40 ◽  
Author(s):  
Mariko Nomura ◽  
Ken Ohsuga ◽  
Keiichi Wada ◽  
Hajime Susa ◽  
Toru Misawa
Keyword(s):  
Absorption Lines ◽  
Broad Absorption ◽  
Disk Wind ◽  
Broad Absorption Lines
Sign in / Sign up

Export Citation Format

Share Document