BUDHIES I: Characterizing the environments in and around two clusters at z similar or equal to 0.2

Yara L. Jaffe*, Bianca M. Poggianti, Marc A. W. Verheijen, Boris Z. Deshev, Jacqueline H. van Gorkom

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

26 Citaten (Scopus)
132 Downloads (Pure)

Samenvatting

We present the optical spectroscopy for the Blind Ultra Deep H I Environmental Survey (BUD-HIES). With the Westerbork Synthesis Radio Telescope, BUDHIES has detected H I in over 150 galaxies in and around two Abell clusters at z similar or equal to 0.2. With the aim of characterizing the environments of the H I-detected galaxies, we obtained multifibre spectroscopy with the William Herschel Telescope. In this paper, we describe the spectroscopic observations, report redshifts and EW[O II] measurements for similar to 600 galaxies, and perform an environmental analysis. In particular, we present cluster velocity dispersion measurements for five clusters and groups in the BUDHIES volume, as well as a detailed substructure analysis.

Originele taal-2English
Pagina's (van-tot)2111-2125
Aantal pagina's15
TijdschriftMonthly Notices of the Royal Astronomical Society
Volume431
Nummer van het tijdschrift3
DOI's
StatusPublished - 21-mei-2013

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