The HI gas content of galaxies around Abell 370

Philip Lah; Michael Pracy; Jayaram Chengalur; Franklin Briggs; Matthew Colless; Roberto De Propris

The HI gas content of galaxies around Abell 370

Philip Lah, Michael Pracy, Jayaram Chengalur, Franklin Briggs, Matthew Colless, Roberto De Propris

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Presented here are our measurements of the neutral atomic hydrogen gas content of 324 galaxies around Abell 370, a galaxy cluster at a redshift of z = 0.37 (a look-back time of âˆ¼4 billion years). These measurements were made using Giant Metrewave Radio Telescope observations by coadding the HI 21-cm emission signal from the galaxies with known optical positions and redshifts. The gas content of these galaxies is significantly higher than that found in nearby clusters, providing evidence for galaxy evolution within dense environments. Despite this fact, galaxies in regions of higher density within Abell 370 have less gas than galaxies located in regions of lower density surrounding the cluster, following the same trend seen in nearby clusters

Original language	English
Title of host publication	Proceedings of the ISKAF2010 Science Meeting
Place of Publication	online
Publisher	Proceedings of Science
Pages	12
Publication status	Published - 2010
Event	International SKAF Science Meeting 2010 - Assen the Netherlands Duration: 1 Jan 2010 → … http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=112

Conference

Conference	International SKAF Science Meeting 2010
Period	1/01/10 → …
Other	June 10-14 2010
Internet address	http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=112

Cite this

@inproceedings{04f00aaaa76544c7a0cacb2ec64524b6,

title = "The HI gas content of galaxies around Abell 370",

abstract = "Presented here are our measurements of the neutral atomic hydrogen gas content of 324 galaxies around Abell 370, a galaxy cluster at a redshift of z = 0.37 (a look-back time of {\^a}ˆ¼4 billion years). These measurements were made using Giant Metrewave Radio Telescope observations by coadding the HI 21-cm emission signal from the galaxies with known optical positions and redshifts. The gas content of these galaxies is significantly higher than that found in nearby clusters, providing evidence for galaxy evolution within dense environments. Despite this fact, galaxies in regions of higher density within Abell 370 have less gas than galaxies located in regions of lower density surrounding the cluster, following the same trend seen in nearby clusters",

author = "Philip Lah and Michael Pracy and Jayaram Chengalur and Franklin Briggs and Matthew Colless and {De Propris}, Roberto",

year = "2010",

language = "English",

pages = "12",

booktitle = "Proceedings of the ISKAF2010 Science Meeting",

publisher = "Proceedings of Science",

note = "International SKAF Science Meeting 2010 ; Conference date: 01-01-2010",

url = "http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=112",

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TY - GEN

T1 - The HI gas content of galaxies around Abell 370

AU - Lah, Philip

AU - Pracy, Michael

AU - Chengalur, Jayaram

AU - Briggs, Franklin

AU - Colless, Matthew

AU - De Propris, Roberto

PY - 2010

Y1 - 2010

N2 - Presented here are our measurements of the neutral atomic hydrogen gas content of 324 galaxies around Abell 370, a galaxy cluster at a redshift of z = 0.37 (a look-back time of âˆ¼4 billion years). These measurements were made using Giant Metrewave Radio Telescope observations by coadding the HI 21-cm emission signal from the galaxies with known optical positions and redshifts. The gas content of these galaxies is significantly higher than that found in nearby clusters, providing evidence for galaxy evolution within dense environments. Despite this fact, galaxies in regions of higher density within Abell 370 have less gas than galaxies located in regions of lower density surrounding the cluster, following the same trend seen in nearby clusters

AB - Presented here are our measurements of the neutral atomic hydrogen gas content of 324 galaxies around Abell 370, a galaxy cluster at a redshift of z = 0.37 (a look-back time of âˆ¼4 billion years). These measurements were made using Giant Metrewave Radio Telescope observations by coadding the HI 21-cm emission signal from the galaxies with known optical positions and redshifts. The gas content of these galaxies is significantly higher than that found in nearby clusters, providing evidence for galaxy evolution within dense environments. Despite this fact, galaxies in regions of higher density within Abell 370 have less gas than galaxies located in regions of lower density surrounding the cluster, following the same trend seen in nearby clusters

M3 - Conference contribution

SP - 12

BT - Proceedings of the ISKAF2010 Science Meeting

PB - Proceedings of Science

CY - online

T2 - International SKAF Science Meeting 2010

Y2 - 1 January 2010

ER -

The HI gas content of galaxies around Abell 370

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