skip to main content

DOE PAGESDOE PAGES

Title: SPIDERS: the spectroscopic follow-up of X-ray-selected clusters of galaxies in SDSS-IV

SPIDERS (The SPectroscopic IDentification of ERosita Sources) is a programme dedicated to the homogeneous and complete spectroscopic follow-up of X-ray active galactic nuclei and galaxy clusters over a large area (~7500 deg 2) of the extragalactic sky. SPIDERS is part of the Sloan Digital Sky Survey (SDSS)-IV project, together with the Extended Baryon Oscillation Spectroscopic Survey and the Time-Domain Spectroscopic Survey. This study describes the largest project within SPIDERS before the launch of eROSITA: an optical spectroscopic survey of X-ray-selected, massive (~10 14–10 15 M⊙) galaxy clusters discovered in ROSAT and XMM–Newton imaging. The immediate aim is to determine precise (Δz ~ 0.001) redshifts for 4000–5000 of these systems out to z ~ 0.6. The scientific goal of the program is precision cosmology, using clusters as probes of large-scale structure in the expanding Universe. We present the cluster samples, target selection algorithms and observation strategies. We demonstrate the efficiency of selecting targets using a combination of SDSS imaging data, a robust red-sequence finder and a dedicated prioritization scheme. We describe a set of algorithms and work-flow developed to collate spectra and assign cluster membership, and to deliver catalogues of spectroscopically confirmed clusters. We discuss the relevance of line-of-sight velocity dispersionmore » estimators for the richer systems. We illustrate our techniques by constructing a catalogue of 230 spectroscopically validated clusters (0.031 < z < 0.658), found in pilot observations. Finally, we discuss two potential science applications of the SPIDERS sample: the study of the X-ray luminosity-velocity dispersion (LX–σ) relation and the building of stacked phase-space diagrams.« less
Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Grant/Contract Number:
AC02-76SF00515
Type:
Accepted Manuscript
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Volume: 463; Journal Issue: 4; Journal ID: ISSN 0035-8711
Publisher:
Royal Astronomical Society
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Contributing Orgs:
SDSS-IV Collaboration
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; catalogues; galaxy clusters; cosmology observations; X-rays
OSTI Identifier:
1361137

Clerc, N., Merloni, A., Zhang, Y. -Y., Finoguenov, A., Dwelly, T., Nandra, K., Collins, C., Dawson, K., Kneib, J. -P., Rozo, E., Rykoff, E., Sadibekova, T., Brownstein, J., Lin, Y. -T., Ridl, J., Salvato, M., Schwope, A., Steinmetz, M., Seo, H. -J., and Tinker, J.. SPIDERS: the spectroscopic follow-up of X-ray-selected clusters of galaxies in SDSS-IV. United States: N. p., Web. doi:10.1093/mnras/stw2214.
Clerc, N., Merloni, A., Zhang, Y. -Y., Finoguenov, A., Dwelly, T., Nandra, K., Collins, C., Dawson, K., Kneib, J. -P., Rozo, E., Rykoff, E., Sadibekova, T., Brownstein, J., Lin, Y. -T., Ridl, J., Salvato, M., Schwope, A., Steinmetz, M., Seo, H. -J., & Tinker, J.. SPIDERS: the spectroscopic follow-up of X-ray-selected clusters of galaxies in SDSS-IV. United States. doi:10.1093/mnras/stw2214.
Clerc, N., Merloni, A., Zhang, Y. -Y., Finoguenov, A., Dwelly, T., Nandra, K., Collins, C., Dawson, K., Kneib, J. -P., Rozo, E., Rykoff, E., Sadibekova, T., Brownstein, J., Lin, Y. -T., Ridl, J., Salvato, M., Schwope, A., Steinmetz, M., Seo, H. -J., and Tinker, J.. 2016. "SPIDERS: the spectroscopic follow-up of X-ray-selected clusters of galaxies in SDSS-IV". United States. doi:10.1093/mnras/stw2214. https://www.osti.gov/servlets/purl/1361137.
@article{osti_1361137,
title = {SPIDERS: the spectroscopic follow-up of X-ray-selected clusters of galaxies in SDSS-IV},
author = {Clerc, N. and Merloni, A. and Zhang, Y. -Y. and Finoguenov, A. and Dwelly, T. and Nandra, K. and Collins, C. and Dawson, K. and Kneib, J. -P. and Rozo, E. and Rykoff, E. and Sadibekova, T. and Brownstein, J. and Lin, Y. -T. and Ridl, J. and Salvato, M. and Schwope, A. and Steinmetz, M. and Seo, H. -J. and Tinker, J.},
abstractNote = {SPIDERS (The SPectroscopic IDentification of ERosita Sources) is a programme dedicated to the homogeneous and complete spectroscopic follow-up of X-ray active galactic nuclei and galaxy clusters over a large area (~7500 deg2) of the extragalactic sky. SPIDERS is part of the Sloan Digital Sky Survey (SDSS)-IV project, together with the Extended Baryon Oscillation Spectroscopic Survey and the Time-Domain Spectroscopic Survey. This study describes the largest project within SPIDERS before the launch of eROSITA: an optical spectroscopic survey of X-ray-selected, massive (~1014–1015 M⊙) galaxy clusters discovered in ROSAT and XMM–Newton imaging. The immediate aim is to determine precise (Δz ~ 0.001) redshifts for 4000–5000 of these systems out to z ~ 0.6. The scientific goal of the program is precision cosmology, using clusters as probes of large-scale structure in the expanding Universe. We present the cluster samples, target selection algorithms and observation strategies. We demonstrate the efficiency of selecting targets using a combination of SDSS imaging data, a robust red-sequence finder and a dedicated prioritization scheme. We describe a set of algorithms and work-flow developed to collate spectra and assign cluster membership, and to deliver catalogues of spectroscopically confirmed clusters. We discuss the relevance of line-of-sight velocity dispersion estimators for the richer systems. We illustrate our techniques by constructing a catalogue of 230 spectroscopically validated clusters (0.031 < z < 0.658), found in pilot observations. Finally, we discuss two potential science applications of the SPIDERS sample: the study of the X-ray luminosity-velocity dispersion (LX–σ) relation and the building of stacked phase-space diagrams.},
doi = {10.1093/mnras/stw2214},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 4,
volume = 463,
place = {United States},
year = {2016},
month = {9}
}