TY - JOUR
T1 - Evolutionary Map of the Universe (EMU)
T2 - observations of filamentary structures in the Abell S1136 galaxy cluster
AU - Macgregor, Peter J.
AU - Norris, Ray P.
AU - O’Brien, Andrew
AU - Akhlaghi, Mohammad
AU - Anderson, Craig
AU - Collier, Jordan D.
AU - Crawford, Evan J.
AU - Duchesne, Stefan W.
AU - Filipović, Miroslav D.
AU - Koribalski, Bärbel S.
AU - Pacaud, Florian
AU - Reiprich, Thomas H.
AU - Riseley, Christopher J.
AU - Rudnick, Lawrence
AU - Vernstrom, Tessa
AU - Hopkins, Andrew M.
AU - Johnston-Hollitt, Melanie
AU - Marvil, Josh
AU - Whiting, Matthew
AU - Tingay, Steven
PY - 2024
Y1 - 2024
N2 - We present radio observations of the galaxy cluster Abell S1136 at 888 MHz, using the Australian Square Kilometre Array Pathfinder radio telescope, as part of the Evolutionary Map of the Universe Early Science program. We compare these findings with data from the Murchison Widefield Array, XMM-Newton, the Wide-field Infrared Survey Explorer, the Digitised Sky Survey, and the Australia Telescope Compact Array. Our analysis shows the X-ray and radio emission in Abell S1136 are closely aligned and centered on the BCG, while the X-ray temperature profile shows a relaxed cluster with no evidence of a cool core. We find that the diffuse radio emission in the centre of the cluster shows more structure than seen in previous low-resolution observations of this source, which appeared formerly as an amorphous radio blob, similar in appearance to a radio halo; our observations show the diffuse emission in the Abell S1136 galaxy cluster contains three narrow filamentary structures visible at 888 MHz, between ∼80 and 140 kpc in length; however the properties of the diffuse emission do not fully match that of a radio (mini-)halo or (fossil) tailed radio source.
AB - We present radio observations of the galaxy cluster Abell S1136 at 888 MHz, using the Australian Square Kilometre Array Pathfinder radio telescope, as part of the Evolutionary Map of the Universe Early Science program. We compare these findings with data from the Murchison Widefield Array, XMM-Newton, the Wide-field Infrared Survey Explorer, the Digitised Sky Survey, and the Australia Telescope Compact Array. Our analysis shows the X-ray and radio emission in Abell S1136 are closely aligned and centered on the BCG, while the X-ray temperature profile shows a relaxed cluster with no evidence of a cool core. We find that the diffuse radio emission in the centre of the cluster shows more structure than seen in previous low-resolution observations of this source, which appeared formerly as an amorphous radio blob, similar in appearance to a radio halo; our observations show the diffuse emission in the Abell S1136 galaxy cluster contains three narrow filamentary structures visible at 888 MHz, between ∼80 and 140 kpc in length; however the properties of the diffuse emission do not fully match that of a radio (mini-)halo or (fossil) tailed radio source.
KW - galaxies: clusters: individual: (Abell S1136)
KW - radio continuum: galaxies
UR - http://www.scopus.com/inward/record.url?scp=85194467400&partnerID=8YFLogxK
U2 - 10.1017/pasa.2024.36
DO - 10.1017/pasa.2024.36
M3 - Article
AN - SCOPUS:85194467400
SN - 1323-3580
JO - Publications of the Astronomical Society of Australia
JF - Publications of the Astronomical Society of Australia
ER -