| Autor: |
Maier, C., Ziegler, B. L., Haines, C. P., Smith, G. P. |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
A&A 621, A131 (2019) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1051/0004-6361/201834290 |
| Popis: |
(Abridged) We explore 7 clusters from LoCuSS at z~0.2 with spectra of 1965 cluster members from the ACReS Hectospec survey covering a region which corresponds to about three virial radii for each cluster. We measure fluxes of five emission lines of cluster members enabling us to unambiguously derive O/H gas metallicities, and also SFRs from extinction corrected Halpha fluxes. We compare our cluster galaxy sample with a field sample of 705 galaxies at similar redshifts observed with Hectospec. We find that star-forming cluster and field galaxies show similar median specific SFRs in a given mass bin, but their O/H values are displaced to higher values at projected radii of RComment: Accepted for publication in A&A; main results in Sect. 4.4 |
| Databáze: |
arXiv |
| Externí odkaz: |
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