skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A multicomponent matched filter cluster confirmation tool for eROSITA: initial application to the RASS and DES-SV data sets

Journal Article · · Monthly Notices of the Royal Astronomical Society
 [1];  [2];  [3];  [4];  [5];  [6];  [7];  [5];  [8];  [9];  [10];  [8];  [11];  [12];  [13];  [14];  [15];  [9];  [5];  [16] more »;  [17];  [18];  [19];  [8];  [20];  [21];  [9];  [22];  [12];  [23];  [24];  [25];  [26];  [5];  [13];  [25];  [27];  [5];  [28]; ORCiD logo [29];  [30];  [13] « less
  1. Ludwig-Maximilians-Univ. Munich (Germany); Max Planck Institute for Extraterrestrial Physics, Garching (Germany)
  2. Ludwig-Maximilians-Univ. Munich (Germany); Max Planck Institute for Extraterrestrial Physics, Garching (Germany); Excellence Cluster Universe, Garching (Germany)
  3. IIT Hyderabad, Telangana (India)
  4. Ludwig-Maximilians-Univ. Munich (Germany)
  5. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  6. Institut d'Astrophysique de Paris, Paris (France); Univ. College London, London (United Kingdom); UPMC Univ. Paris, Paris (France)
  7. Univ. College London, London (United Kingdom)
  8. Lab. Interinstitucional de e-Astronomia - LIneA, Rio de Janeiro (Brazil); Observatorio Nacional, Rio de Janeiro (Brazil)
  9. Univ. of Illinois, Urbana, IL (United States); National Center for Supercomputing Applications, Urbana, IL (United States)
  10. Stanford Univ.,Stanford, CA (United States)
  11. Ludwig-Maximilians-Univ. Munich (Germany); Excellence Cluster Universe, Garching (Germany)
  12. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  13. Univ. of Michigan, Ann Arbor, MI (United States)
  14. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Univ. of Chicago, Chicago, IL (United States)
  15. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  16. The Ohio State Univ., Columbus, OH (United States)
  17. Univ. of Washington, Seattle, WA (United States); National Optical Astronomy Observatory, La Serena (Chile)
  18. Australian Astronomical Observatory, North Ryde, NSW (Australia)
  19. Lab. Interinstitucional de e-Astronomia - LIneA, Rio de Janeiro (Brazil); Univ. de Sao Paulo, Sao Paulo (Brazil)
  20. Univ. of Pennsylvania, Philadelphia, PA (United States)
  21. Princeton Univ., Princeton, NJ (United States)
  22. Institucio Catalana de Recerca i Estudis Avancats, Barcelona (Spain); The Barcelona Institute of Science and Technology, Bellaterra (Barcelona) (Spain)
  23. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  24. Univ. of Sussex, Brighton (United Kingdom)
  25. Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas (CIEMAT), Madrid (Spain)
  26. Lab. Interinstitucional de e-Astronomia - LIneA, Rio de Janeiro (Brazil); Instituto de Fisica, Porto Alegre (Brazil)
  27. Univ. of Southampton, Southampton (United Kingdom)
  28. Lab. Interinstitucional de e-Astronomia - LIneA, Rio de Janeiro (Brazil); Univ. Federal do ABC, Santo Andre (Brazil)
  29. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  30. National Center for Supercomputing Applications, Urbana, IL (United States)
+ Show Author Affiliations

We describe a multi-component matched filter cluster confirmation tool (MCMF) designed for the study of large X-ray source catalogs produced by the upcoming X-ray all-sky survey mission eROSITA. We apply the method to confirm a sample of 88 clusters with redshifts $0.05<0.8$ in the recently published 2RXS catalog from the ROSAT all-sky survey (RASS) over the 208 deg$^2$ region overlapped by the Dark Energy Survey (DES) science verification (DES-SV) dataset. In our pilot study, we examine all X-ray sources, regardless of their extent. Our method employs a multi-color red sequence (RS) algorithm that incorporates the X-ray count rate and peak position in determining the region of interest for followup and extracts the positionally and color weighted optical richness $$\lambda_{\mathrm{MCMF}}$$ as a function of redshift for each source. Peaks in the $$\lambda_{\mathrm{MCMF}}$$-redshift distribution are identified and used to extract photometric redshifts, richness and uncertainties. The significances of all optical counterparts are characterized using the distribution of richnesses defined along random lines of sight. These significances are used to extract cluster catalogs and to estimate the contamination by random superpositions of unassociated optical systems. The delivered photometric redshift accuracy is $$\delta z / (1+z)=0.010$$. We find a well defined X-ray luminosity-$$\lambda_{\mathrm{MCMF}}$$ relation with an intrinsic scatter of $$\delta \ln(\lambda_\mathrm{MCMF}| L_\mathrm{x})=0.21$$. Matching our catalog with the DES-SV redMaPPer catalog yields good agreement in redshift and richness estimates; comparing our catalog with the South Pole Telescope (SPT) selected clusters shows no inconsistencies. SPT clusters in our dataset are consistent with the high mass extension of the RASS based $$\lambda_{\mathrm{MCMF}}$$-mass relation

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Contributing Organization:
The DES Collaboration
Grant/Contract Number:
AC02-76SF00515; AC05-00OR22725; AC02-07CH11359
OSTI ID:
1423126
Alternate ID(s):
OSTI ID: 1408217; OSTI ID: 1422381
Report Number(s):
arXiv:1706.06577; FERMILAB-PUB-17-025-AE; TRN: US1801710
Journal Information:
Monthly Notices of the Royal Astronomical Society, Vol. 474, Issue 3; ISSN 0035-8711
Publisher:
Royal Astronomical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 33 works
Citation information provided by
Web of Science

References (52)

Collisional Plasma Models with APEC/APED: Emission-Line Diagnostics of Hydrogen-like and Helium-like Ions journal August 2001
Clash-Vlt: Constraints on the dark Matter Equation of State from Accurate Measurements of Galaxy Cluster mass Profiles journal February 2014
SExtractor: Software for source extraction journal June 1996
Second ROSAT all-sky survey (2RXS) source catalogue journal March 2016
Optical confirmation and redshift estimation of the Planck cluster candidates overlapping the Pan-STARRS Survey journal April 2015
Evolution of the K -Band Galaxy Cluster Luminosity Function and Scaling Relations journal October 2006
A Universal Density Profile from Hierarchical Clustering journal December 1997
A comparative study of radio halo occurrence in SZ and X-ray selected galaxy cluster samples journal November 2013
The MCXC: a meta-catalogue of x-ray detected clusters of galaxies journal October 2011
redMaPPer. I. ALGORITHM AND SDSS DR8 CATALOG journal April 2014
Precision photometry of early-type galaxies in the Coma and Virgo clusters: a test of the universality of the colour-magnitude relation - II. Analysis journal February 1992
The dark Energy Camera journal October 2015
A Multiband Study of the Galaxy Populations of the First four Sunyaev-Zel'Dovich Effect Selected Galaxy Clusters journal May 2011
The Southern SHARC catalogue: a ROSAT survey for distant galaxy clusters journal June 2003
Cosmological Constraints from Galaxy Clusters in the 2500 Square-Degree Spt-Sz Survey journal November 2016
The ROSAT point spread functions and associates journal February 2000
The [ITAL]K[/ITAL]-Band Luminosity Function in Galaxy Clusters to [CLC][ITAL]z[/ITAL][/CLC] [FORMULA][F]∼1[/F][/FORMULA] journal August 1999
Introducing BAX: A database for X-ray clusters and groups of galaxies journal September 2004
Cluster Abundance Constraints for Cosmological Models with a Time‐varying, Spatially Inhomogeneous Energy Component with Negative Pressure journal December 1998
The ROSAT North Ecliptic Pole Survey: The X‐Ray Catalog
  • Henry, J. Patrick; Mullis, Christopher R.; Voges, Wolfgang
  • The Astrophysical Journal Supplement Series, Vol. 162, Issue 2 https://doi.org/10.1086/498749
journal February 2006
MACS: A Quest for the Most Massive Galaxy Clusters in the Universe journal June 2001
What does the Bullet Cluster tell us about self-interacting dark matter? journal October 2016
CHANDRA CLUSTER COSMOLOGY PROJECT III: COSMOLOGICAL PARAMETER CONSTRAINTS journal February 2009
Aperture Synthesis Polarimetry of the Moon at 21 cm journal October 1972
The amplitude of mass fluctuations in the Universe journal June 1993
The Dark Energy Survey: more than dark energy – an overview journal March 2016
A New Method For Galaxy Cluster Detection. I. The Algorithm journal October 2000
The Blanco Cosmology Survey: data Acquisition, Processing, Calibration, Quality Diagnostics, and data Release journal September 2012
A Catalog of 203 Galaxy Clusters Serendipitously Detected in the ROSAT PSPC Pointed Observations journal August 1998
Galaxy populations in the 26 most massive galaxy clusters in the South Pole Telescope SPT-SZ survey journal July 2016
The Two Micron All Sky Survey (2MASS) journal February 2006
An analytic expression for the luminosity function for galaxies. journal January 1976
The Redmapper Galaxy Cluster Catalog from des Science Verification data journal May 2016
MASS CALIBRATION AND COSMOLOGICAL ANALYSIS OF THE SPT-SZ GALAXY CLUSTER SAMPLE USING VELOCITY DISPERSION σ v AND X-RAY Y X MEASUREMENTS journal January 2015
Photometric calibration of the Supernova Legacy Survey fields journal August 2009
Galaxy Clusters Discovered via the Sunyaev-Zel'Dovich Effect in the 2500-Square-Degree Spt-Sz Survey journal January 2015
The Homogeneity of Spheroidal Populations in Distant Clusters journal July 1997
COSMOS PHOTOMETRIC REDSHIFTS WITH 30-BANDS FOR 2-deg 2 journal December 2008
The Northern ROSAT All‐Sky (NORAS) Galaxy Cluster Survey. I. X‐Ray Properties of Clusters Detected as Extended X‐Ray Sources journal August 2000
Optical Spectroscopy and Velocity Dispersions of Galaxy Clusters from the Spt-Sz Survey journal August 2014
Some Aspects of Measurement Error in Linear Regression of Astronomical Data journal August 2007
X-ray selected galaxy clusters in the Pan-STARRS Medium Deep Survey★ journal April 2013
Redshifts, Sample Purity, and bcg Positions for the Galaxy Cluster Catalog from the First 720 Square Degrees of the South pole Telescope Survey journal November 2012
Photometric Calibration of the First 1.5 Years of the Pan-Starrs1 Survey journal August 2012
COSMOLOGICAL CONSTRAINTS FROM THE SLOAN DIGITAL SKY SURVEY MaxBCG CLUSTER CATALOG journal December 2009
Robust Optical Richness Estimation with Reduced Scatter journal February 2012
The Distribution of Rich Clusters of Galaxies. journal March 1957
Constraints on the richness–mass relation and the optical-SZE positional offset distribution for SZE-selected clusters journal October 2015
Constraints on Cosmological Parameters from Future Galaxy Cluster Surveys journal June 2001
Spt-Gmos: a Gemini/Gmos-South Spectroscopic Survey of Galaxy Clusters in the Spt-Sz Survey journal November 2016
Cosmological Constraints from the Red‐Sequence Cluster Survey journal January 2007
The ROSAT-ESO Flux Limited X-ray (REFLEX) Galaxy cluster survey: V. The cluster catalogue journal September 2004

Cited By (5)

Synthetic simulations of the extragalactic sky seen by eROSITA: I. Pre-launch selection functions from Monte-Carlo simulations journal September 2018
Optical follow-up study of 32 high-redshift galaxy cluster candidates from Planck with the William Herschel Telescope journal July 2019
Mass calibration of the CODEX cluster sample using SPIDERS spectroscopy – I. The richness–mass relation journal March 2019
X-Ray Properties of SPT-selected Galaxy Clusters at 0.2 < z < 1.5 Observed with XMM-Newton journal January 2019
Optical follow-up study of 32 high-redshift galaxy cluster candidates from Planck with the William Herschel Telescope text January 2019

Similar Records

A new RASS galaxy cluster catalogue with low contamination extending to z ∼ 1 in the DES overlap region
Journal Article · Wed May 29 00:00:00 EDT 2019 · Monthly Notices of the Royal Astronomical Society · OSTI ID:1423126
+62 more
The eROSITA Final Equatorial-Depth Survey (eFEDS)
Journal Article · Wed May 18 00:00:00 EDT 2022 · Astronomy and Astrophysics · OSTI ID:1423126
+19 more
The redMaPPer Galaxy Cluster Catalog From DES Science Verification Data
Journal Article · Fri Apr 29 00:00:00 EDT 2016 · The Astrophysical Journal. Supplement Series (Online) · OSTI ID:1423126

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
galaxies: clusters: general
galaxies: clusters: intracluster medium
galaxies: distances and redshifts
X-rays: galaxies: clusters