| 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 |
|
|
タイトル |
Kinematics and excitation of the ram pressure stripped ionized gas filaments in the Coma cluster of galaxies |
|
言語 |
en |
| 作成者 |
Yoshida, Michitoshi
Yagi, Masafumi
Komiyama, Yutaka
Furusawa, Hisanori
Kashikawa, Nobunari
Hattori, Takashi
Okamura, Sadanori
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
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 |
|
|
主題Scheme |
Other |
|
主題 |
galaxies: clusters |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
individual (Coma) |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
galaxies: clusters: intracluster medium |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
galaxies: evolution |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
galaxies: kinematics and dynamics ,; intergalactic medium |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
440 |
| 内容記述 |
|
|
内容記述 |
We present the results of deep imaging and spectroscopic observations of very extended ionized gas (EIG) around four member galaxies of the Coma Cluster of galaxies: RB 199, IC 4040, GMP 2923, and GMP 3071. The EIGs were serendipitously found in an H alpha narrowband imaging survey of the central region of the Coma Cluster. The relative radial velocities of the EIGs with respect to the systemic velocities of the parent galaxies from which they emanate increase almost monotonically with the distance from the nucleus of the respective galaxies, reaching similar to-400 to - 800 km s(-1) at around 40-80 kpc from the galaxies. The one-sided morphologies and the velocity fields of the EIGs are consistent with the predictions of numerical simulations of ram pressure stripping. We found a very low velocity filament (nu(rel) similar to -1300 km s(-1)) at the southeastern edge of the disk of IC 4040. Some bright compact knots in the EIGs of RB 199 and IC 4040 exhibit blue continuum and strong H alpha emission. The equivalent widths of the H alpha emission exceed 200 angstrom and are greater than 1000 angstrom for some knots. The emission-line intensity ratios of the knots are basically consistent with those of sub-solar abundance H II regions. These facts indicate that intensive star formation occurs in the knots. Some filaments, including the low-velocity filament of the IC 4040 EIG, exhibit shock-like emission-line spectra, suggesting that shock heating plays an important role in ionization and excitation of the EIGs. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
IOP Publishing Ltd |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1088/0004-637X/749/1/43 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://dx.doi.org/10.1088/0004-637X/749/1/43 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
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 |
|
収録物識別子 |
AA00553242 |
| 開始ページ |
|
|
開始ページ |
43 |
| 書誌情報 |
Astrophysical Journal
Astrophysical Journal
巻 749,
号 1,
p. 43,
発行日 2012
|
| 旧ID |
34747 |
AstrophysJ_749_43.pdf (4.2 MB)
