TY - JOUR
T1 - Spectroscopic Confirmation and Velocity Dispersions for 20 Planck Galaxy Clusters at 0.16 < z < 0.78
AU - Amodeo, Stefania
AU - Mei, Simona
AU - Stanford, Spencer A.
AU - Lawrence, Charles R.
AU - Bartlett, James G.
AU - Stern, Daniel
AU - Chary, Ranga Ram
AU - Shim, Hyunjin
AU - Marleau, Francine R.
AU - Melin, Jean Baptiste
AU - Rodríguez-Gonzálvez, Carmen
N1 - Publisher Copyright:
© 2018. The American Astronomical Society. All rights reserved.
PY - 2018/1/20
Y1 - 2018/1/20
N2 - We present Gemini and Keck spectroscopic redshifts and velocity dispersions for 20 clusters detected via the Sunyaev-Zel'dovich (SZ) effect by the Planck space mission, with estimated masses in the range. Cluster members were selected for spectroscopic follow-up with Palomar, Gemini, and Keck optical and (in some cases) infrared imaging. Seven cluster redshifts were measured for the first time with this observing campaign, including one of the most distant Planck clusters confirmed to date, at , PSZ2 G085.95+25.23. The spectroscopic redshift catalogs of members of each confirmed cluster are included as online tables. We show the galaxy redshift distributions and measure the cluster velocity dispersions. The cluster velocity dispersions obtained in this paper were used in a companion paper to measure the Planck mass bias and to constrain the cluster velocity bias.
AB - We present Gemini and Keck spectroscopic redshifts and velocity dispersions for 20 clusters detected via the Sunyaev-Zel'dovich (SZ) effect by the Planck space mission, with estimated masses in the range. Cluster members were selected for spectroscopic follow-up with Palomar, Gemini, and Keck optical and (in some cases) infrared imaging. Seven cluster redshifts were measured for the first time with this observing campaign, including one of the most distant Planck clusters confirmed to date, at , PSZ2 G085.95+25.23. The spectroscopic redshift catalogs of members of each confirmed cluster are included as online tables. We show the galaxy redshift distributions and measure the cluster velocity dispersions. The cluster velocity dispersions obtained in this paper were used in a companion paper to measure the Planck mass bias and to constrain the cluster velocity bias.
KW - cosmology: observations
KW - galaxies: clusters: general
KW - galaxies: distances and redshifts Supporting material: machine
KW - readable table
UR - http://www.scopus.com/inward/record.url?scp=85041096262&partnerID=8YFLogxK
U2 - 10.3847/1538-4357/aa98dd
DO - 10.3847/1538-4357/aa98dd
M3 - Article
AN - SCOPUS:85041096262
SN - 0004-637X
VL - 853
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 1
M1 - 36
ER -