Published 2015
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Protocluster Survey at z = 2.23: from Herschel to ALMA
Abstract
We present results of Herschel/SPIRE observation in 2QZ cluster at z=2.23. 2QZ cluster is discovered as an overdensity of QSOs and Hα emitters (HAEs), which was originally identified as a concentration of 5 QSOs in the 2dF Quasar Redshift survey. We find an overdensity of SPIRE color selected far-infrared bright galaxies (3.9 σ compared with COSMOS field) ∼5' west of the HAEs density peak of in a radius of 6 co-Mpc. This suggests 2QZ cluster is experiencing enhanced dusty star-formation. However, SPIRE color selection with S_(500)/S_(350) vs S_(350)/S_(250) has a redshift uncertainty, we need spectroscopic observation with ALMA to confirm the precise redshifts.
Additional Information
© 2015 Astronomical Society of the Pacific. Yuta Kato acknowledges support from Hayakawa Satio Fund awarded by the Astronomical Society of Japan.Attached Files
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Additional details
- Eprint ID
- 64785
- Resolver ID
- CaltechAUTHORS:20160226-071621305
- Astronomical Society of Japan
- Created
-
2016-02-29Created from EPrint's datestamp field
- Updated
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2020-03-09Created from EPrint's last_modified field
- Series Name
- Astronomical Society of the Pacific Conference Series
- Series Volume or Issue Number
- 499