Galaxy overdensities around 3C radio galaxies and quasars at $1
Autor:
Ghaffari, Z., Westhues, Ch., Haas, M., Chini, R., Willner, S. P., Ashby, M. L. N., Wilkes, B. J.
Rok vydání:
2017
Předmět:
Druh dokumentu:
Working Paper
DOI:
10.1002/asna.201713389
Popis:
Luminous radio sources are thought to lie in galaxy clusters or proto-clusters. The complete sample of 64 high-redshift 3C sources at $13\sigma$) within 30" ($\sim$250 kpc) projected distance from the radio source compared to the surrounding galaxy densities measured in the $50''-120''$ annulus. The Pan-STARRS/IRAC cut reveals higher average overdensities than the IRAC1/2 cut and also a decline of overdensities at $z>1.4$. To infer the nature of the cluster members, we rerun the analysis using a stronger IRAC1/2 cut $[3.6] - [4.5] < -0.1$ which removes $1
Databáze:
arXiv
Externí odkaz:
| Autor: | Ghaffari, Z., Westhues, Ch., Haas, M., Chini, R., Willner, S. P., Ashby, M. L. N., Wilkes, B. J. |
|---|---|
| Rok vydání: | 2017 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1002/asna.201713389 |
| Popis: | Luminous radio sources are thought to lie in galaxy clusters or proto-clusters. The complete sample of 64 high-redshift 3C sources at $1 |
| Databáze: | arXiv |
| Externí odkaz: |
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