Item type |
デフォルトアイテムタイプ_(フル)(1) |
公開日 |
2023-03-18 |
タイトル |
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タイトル |
A Keck/LRIS Spatially-Resolved Spectroscopic Study of a LINER Galaxy SDSS J091628.05+420818.7 |
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言語 |
en |
作成者 |
Bae, Hyun-Jin
Woo, Jong-Hak
Yagi, Masafumi
Yoon, Suk-Jin
Yoshida, Michitoshi
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アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
権利情報 |
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権利情報 |
(c) 2012. The American Astronomical Society. All rights reserved. Printed in the U.S.A. |
主題 |
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主題Scheme |
Other |
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主題 |
galaxies: active |
主題 |
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主題Scheme |
Other |
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主題 |
galaxies: kinematics and dynamics |
主題 |
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主題Scheme |
NDC |
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主題 |
440 |
内容記述 |
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内容記述 |
Using spatially resolved spectra obtained with the Low Resolution Imaging Spectrometer at the Keck I telescope, we investigate the nature of ionizing sources and kinematic properties of emission-line gas in a LINER galaxy SDSS J091628.05+420818.7, which is a nearby (z = 0.0241) and bright (M-r = -20.2) early-type galaxy. After subtracting stellar absorption features using a combination of simple stellar population models, we measure the flux, line-of-sight velocity, and velocity dispersion of four emission lines, i.e., H alpha, H beta, [O III] lambda 5007, and [N II] lambda 6584, to study radial change of emission-line fluxes and velocities. Compared to the point-spread function of the observation, the emission-line region is slightly extended but comparable to the seeing size. The central concentration of emission-line gas suggests that ionization is triggered by a nuclear source, excluding old stellar population as ionizing sources. We find that emission-line gas is counter-rotating with respect to stellar component and that the [O III] lambda 5007 line is blueshifted compared to other emission lines, possibly due to an outflow. |
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言語 |
en |
出版者 |
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出版者 |
IOP Publishing Ltd |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
10.1088/0004-637X/753/1/10 |
関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
http://dx.doi.org/10.1088/0004-637X/753/1/10 |
収録物識別子 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0004-637X |
収録物識別子 |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA00553242 |
開始ページ |
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開始ページ |
10 |
書誌情報 |
Astrophysical Journal
Astrophysical Journal
巻 753,
号 1,
p. 10,
発行日 2012
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旧ID |
34748 |