From feast to famine: understanding active transformation in galaxy groups (Public Lecture)
HI is a key tracer of galaxy fuel, feeding the appetite of star formation, but it also acts as a signpost of tidal interactions. Gas stripped by tidal forces inhibits future star formation, but studies of compact groups have revealed rapid evolution similar to that of the Coma Infall region, suggest...
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Online Access: | http://hdl.handle.net/1959.3/442452 https://www.saao.ac.za/event/from-feast-to-famine-understanding-active-transformation-in-galaxy-groups/ |
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ftswinburne:tle:d3e0ffad-36be-4dc2-9dd7-c10e753ede06:28f49f06-0da8-44be-9edc-ad1dd0a9c582:1 2023-05-15T18:11:57+02:00 From feast to famine: understanding active transformation in galaxy groups (Public Lecture) Cluver, Michelle Swinburne University of Technology 2014 http://hdl.handle.net/1959.3/442452 https://www.saao.ac.za/event/from-feast-to-famine-understanding-active-transformation-in-galaxy-groups/ unknown http://hdl.handle.net/1959.3/442452 https://www.saao.ac.za/event/from-feast-to-famine-understanding-active-transformation-in-galaxy-groups/ Copyright © 2014. Open Night of the South African Astronomical Observatory (SAAO), Cape Town, South Africa, 10 May 2014 Seminar, speech or other presentation 2014 ftswinburne 2019-09-07T22:03:43Z HI is a key tracer of galaxy fuel, feeding the appetite of star formation, but it also acts as a signpost of tidal interactions. Gas stripped by tidal forces inhibits future star formation, but studies of compact groups have revealed rapid evolution similar to that of the Coma Infall region, suggesting an additional mechanism within these much shallower gravitational potential wells. Spitzer spectroscopy has revealed shock-excited H2, most likely tracing collisions with tidally-stripped HI debris. These can be catastrophic, causing the rapid cessation of star formation. Combining the sophisticated group measures from the GAMA survey, optical IFU observations from SAMI, HI observations from KAT-7 and MeerKAT and mid-infrared data from WISE, we aim to address the feeding and feedback nature of neutral gas. Other/Unknown Material sami Swinburne University of Technology: Swinburne Research Bank |
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Swinburne University of Technology: Swinburne Research Bank |
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ftswinburne |
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HI is a key tracer of galaxy fuel, feeding the appetite of star formation, but it also acts as a signpost of tidal interactions. Gas stripped by tidal forces inhibits future star formation, but studies of compact groups have revealed rapid evolution similar to that of the Coma Infall region, suggesting an additional mechanism within these much shallower gravitational potential wells. Spitzer spectroscopy has revealed shock-excited H2, most likely tracing collisions with tidally-stripped HI debris. These can be catastrophic, causing the rapid cessation of star formation. Combining the sophisticated group measures from the GAMA survey, optical IFU observations from SAMI, HI observations from KAT-7 and MeerKAT and mid-infrared data from WISE, we aim to address the feeding and feedback nature of neutral gas. |
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Swinburne University of Technology |
format |
Other/Unknown Material |
author |
Cluver, Michelle |
spellingShingle |
Cluver, Michelle From feast to famine: understanding active transformation in galaxy groups (Public Lecture) |
author_facet |
Cluver, Michelle |
author_sort |
Cluver, Michelle |
title |
From feast to famine: understanding active transformation in galaxy groups (Public Lecture) |
title_short |
From feast to famine: understanding active transformation in galaxy groups (Public Lecture) |
title_full |
From feast to famine: understanding active transformation in galaxy groups (Public Lecture) |
title_fullStr |
From feast to famine: understanding active transformation in galaxy groups (Public Lecture) |
title_full_unstemmed |
From feast to famine: understanding active transformation in galaxy groups (Public Lecture) |
title_sort |
from feast to famine: understanding active transformation in galaxy groups (public lecture) |
publishDate |
2014 |
url |
http://hdl.handle.net/1959.3/442452 https://www.saao.ac.za/event/from-feast-to-famine-understanding-active-transformation-in-galaxy-groups/ |
genre |
sami |
genre_facet |
sami |
op_source |
Open Night of the South African Astronomical Observatory (SAAO), Cape Town, South Africa, 10 May 2014 |
op_relation |
http://hdl.handle.net/1959.3/442452 https://www.saao.ac.za/event/from-feast-to-famine-understanding-active-transformation-in-galaxy-groups/ |
op_rights |
Copyright © 2014. |
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1766184536808357888 |