J/MNRAS/493/4591 Stellar mass as a galaxy cluster mass proxy (Palmese+, 2020) ================================================================================ Stellar mass as a galaxy cluster mass proxy: application to the Dark Energy Survey redMaPPer clusters. Palmese A., Annis J., Burgad J., Farahi A., Soares-Santos M., Welch B., da Silva Pereira M., Lin H., Bhargava S., Hollowood D.L., Wilkinson R., Giles P., Jeltema T., Romer A.K., Evrard A.E., Hilton M., Vergara Cervantes C., Bermeo A., Mayers J., Derose J., Gruen D., Hartley W.G., Lahav O., Leistedt B., Mcclintock T., Rozo E., Rykoff E.S., Varga T.N., Wechsler R.H., Zhang Y., Avila S., Brooks D., Buckley-Geer E., Burke D.L., Carnero Rosell A., Carrasco Kind M., Carretero J., Castander F.J., Collins C., da Costa L.N., Desai S., De Vicente J., Diehl H.T., Dietrich J.P., Doel P., Flaugher B., Fosalba P., Frieman J., Garcia-Bellido J., Gerdes D.W., Gruendl R.A., Gschwend J., Gutierrez G., Honscheid K., James D.J., Krause E., Kuehn K., Kuropatkin N., Liddle A., Lima M., Maia M.A.G., Mann R.G., Marshall J.L., Menanteau F., Miquel R., Ogando R.L.C., Plazas A.A., Roodman A., Rooney P., Sahlen M., Sanchez E., Scarpine V., Schubnell M., Serrano S., Sevilla-Noarbe I., Sobreira F., Stott J., Suchyta E., Swanson M.E.C., Tarle G., Thomas D., Tucker D.L., Viana P.T.P., Vikram V., Walker A.R., (the DES Collaboration) =2020MNRAS.493.4591P (SIMBAD/NED BibCode) ================================================================================ ADC_Keywords: Clusters, galaxy ; Surveys ; Redshifts ; X-ray sources Keywords: surveys - galaxies: clusters: general - galaxies: evolution - galaxies: haloes - cosmology: observations Abstract: We introduce a galaxy cluster mass observable, {mu}_*_, based on the stellar masses of cluster members, and we present results for the Dark Energy Survey (DES) Year 1 (Y1) observations. Stellar masses are computed using a Bayesian model averaging method, and are validated for DES data using simulations and COSMOS data. We show that {mu}_*_ works as a promising mass proxy by comparing our predictions to X-ray measurements. We measure the X-ray temperature-{mu}_*_ relation for a total of 129 clusters matched between the wide-field DES Y1 redMaPPer catalogue and Chandra and XMM archival observations, spanning the redshift range 0.15, which consists of 87297 clusters. This sample is then matched to archival X-ray observations from Chandra and X-ray MultiMirror Mission (XMM). We use these X-ray data to measure an X-ray temperature at the position of redMaPPer clusters, rather than cross-matching with existing X-ray cluster catalogues. While the cluster catalogue is based on Y1 data, the photometry comes from the deeper Year 3 data (Abbott et al. 2018ApJS..239...18A, Cat. II/357). The photometry is the result of the Multi-Object Fitting (MOF) pipeline that uses the NGMIX code. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file tablea1.dat 101 64 Chandra clusters tablea2.dat 92 70 XMM clusters -------------------------------------------------------------------------------- See also: II/357 : The Dark Energy Survey (DES): Data Release 1 (Abbott+, 2018) B/chandra : The Chandra Archive Log (CXC, 1999-2014) J/MNRAS/423/1024 : XCS-DR1 Cluster Catalogue (Mehrtens+, 2012) Byte-by-byte Description of file: tablea1.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 5 F5.3 --- z Cluster photometric redshift computed by redMaPPer 7- 13 F7.3 deg RAdeg Right ascension (J2000) 15- 21 F7.3 deg DEdeg Declination (J2000) 23- 28 F6.2 --- lambda RedMaPPer richness 30- 34 F5.2 --- e_lambda Error on lambda 36- 42 F7.2 --- mu* Stellar mass-based cluster mass proxy (see Section 3.2) 44- 49 F6.2 --- e_mu* Error on mu* 51- 55 F5.2 keV kTX X-ray temperature 57- 60 F4.2 keV E_kTX Upper error on kTX 62- 65 F4.2 keV e_kTX Lower error on kTX 67- 101 A35 --- Obsids Chandra Obsids -------------------------------------------------------------------------------- Byte-by-byte Description of file: tablea2.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 5 F5.3 --- z Cluster photometric redshift computed by redMaPPer 7- 13 F7.3 deg RAdeg Right ascension (J2000) 15- 21 F7.3 deg DEdeg Declination (J2000) 23- 28 F6.2 --- lambda RedMaPPer richness 30- 33 F4.2 --- e_lambda Error on lambda 35- 41 F7.2 --- mu* Stellar mass-based cluster mass proxy (see Section 3.2) 43- 48 F6.2 --- e_mu* Error on mu* 50- 54 F5.2 keV kTX X-ray temperature 56- 60 F5.2 keV E_kTX Upper error on kTX 62- 66 F5.2 keV e_kTX Lower error on kTX 68- 92 A25 --- Name Cluster name (XMMXCS JHHMMSS.s-DDMMSS.s) -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Ana Fiallos [CDS] 04-May-2023