|
| | | | |
| | | |
| Stat |
Members: 3644
Articles: 2'499'343
Articles rated: 2609
16 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
The disappearance of a narrow Mg II absorption system in quasar SDSS J165501.31+260517.4 | | Zhi-Fu Chen
; Yi-Ping Qin
; Min-Feng Gu
; | | Date: |
19 Nov 2013 | | Abstract: | In this letter, we present for the first time, the discovery of the
disappearance of a narrow Mg II $lambdalambda2796,2803$ absorption system
from the spectra of quasar SDSS J165501.31+260517.4 ($z_{
m e}=1.8671$). This
absorber is located at $z_{
m abs} =1.7877$, and has a velocity offset of
$8,423
m ~km~s^{-1}$ with respect to the quasar. According to the velocity
offset and the line variability, this narrow Mg II $lambdalambda2796,2803$
absorption system is likely intrinsic to the quasar. Since the corresponding UV
continuum emission and the absorption lines of another narrow Mg II
$lambdalambda2796,2803$ absorption system at $z_{
m abs}=1.8656$ are very
stable, we think that the disappearance of the absorption system is unlikely to
be caused by the change in ionization of absorption gas. Instead, it likely
arises from the motion of the absorption gas across the line of sight. | | Source: | arXiv, 1311.4710 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser claudebot
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER