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Outer Ionized Gas in Galaxy Group: Exchance Through Tidal Interaction or Accretion from Common Reservoirs?статья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 6 августа 2025 г.
- Авторы: Sil’chenko Olga, Moiseev Alexei, Smirnova Alexandrina, Kosareva Yael, Oparin Dmitry
- Журнал: Universe
- Том: 11
- Номер: 7
- Год издания: 2025
- Номер статьи: 214
- DOI: 10.3390/universe11070214
- Аннотация: To clarify the problem of outer cold gas accretion onto disk galaxies, we have undertaken panoramic spectroscopy of six compact galaxy groups to search for intergalactic gas flows. The groups selected are partly known to possess HI data obtained in 21cm line, and most of them contain a member galaxy revealing decoupled kinematics of gas and stars so recently experiencing gas accretion event. Fabry-Perot scanning interferometry fulfilled at the Russian 6m telescope has provided us with the group maps in the H-alpha emission line intensity and with ionized-gas velocity maps. We have detected several intergalactic ionized-gas flows and some tidal outer ionized-gas structures; but none of them can be a source of gas accretion onto neighboring galaxies with decoupled gas-star kinematics. Only in the single case, that of NGC 7465, we can relate inner inclined gaseous disk with the outer gas inflow; but the origin of this gas stream remains unknown - it does not originate from the neighboring NGC 7463 or NGC 7464.
- Добавил в систему: Сильченко Ольга Касьяновна
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