A pan-chromatic view of the galaxy cluster XMMU J1230.3+1339 at<i>z</i>= 0.975

Fassbender, R.; Böhringer, H.; Santos, J. S.; Pratt, G. W.; Šuhada, R.; Kohnert, J.; Lerchster, M.; Rovilos, M.; Pierini, D.; Chon, G.; Schwope, A. D.; Lamer, G.; Mühlegger, M.; Rosati, P.; Quintana, H.; Nastasi, A.; Hoon, A. de; Seitz, S.; Mohr, J. J.

doi:10.1051/0004-6361/201015204

Cited by 32 publications

(37 citation statements)

References 106 publications

(115 reference statements)

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“…Consistently, the X-ray selected cluster RDCS J0910+5422, exhibits a red sequence although its early-type galaxy population appears to be still forming (Mei et al 2006a;Tanaka et al 2008). With a total mass of about 10 14 M ), RDCS J0910+5422 is as massive as XMMU J0338.7+0030 and four times less massive than XMMU J1230.3+1339 at z = 0.975 (Fassbender et al 2011a;Lerchster et al 2010).…”

Section: Discussionmentioning

confidence: 84%

“…Secondly, it fosters the investigation of the evolution of the galaxy population, the baryon mass component of groups/clusters, the thermodynamics and chemical abundance of the ICM (e.g., Postman et al 2005;Mei et al 2006a,b;Balestra et al 2007;Gobat et al 2008;Maughan et al 2008;Giodini et al 2009;Mantz et al 2010b;Santos et al 2010;Strazzullo et al 2010). About twenty clusters at z = 0.8−2.1 have been discovered and studied in some detail (e.g., Stanford et al 2001Stanford et al , 2002Stanford et al , 2006Blakeslee et al 2003;Mullis et al 2005;Demarco et al 2007;Hilton et al 2007Hilton et al , 2009Eisenhardt et al 2008;Lamer et al 2008;Menci et al 2008;Wilson et al 2009;Kurk et al 2009;Tanaka et al 2010;Papovich et al 2010;Henry et al 2010;Gobat et al 2011;Fassbender et al 2011a). However, a better sampling in redshift and total mass is necessary to build a representative sample of high-z groups and clusters.…”

Section: Introductionmentioning

confidence: 99%

“…Among the main results from XDCP we quote the multiwavelength studies of XMMU J1229+0151 at z = 0.975 (Santos et al 2009) and XMMU J2235.3−2557 Strazzullo et al 2010); the weak-lensing estimate of the total mass of XMMU J2235.3−2557 (Jee et al 2009); the total mass estimate of XMMU J100750.5+125818 (z = 1.082) from strong lensing, optical spectroscopy and X-ray imaging (Schwope et al 2010); the pan-chromatic study of XMMU J1230.3+1339 at z = 0.975 (Fassbender et al 2011a) and its total mass estimate from weak-lensing analysis of ground-based imaging (Lerchster et al 2010); the evidence of starburst activity in the core of XMMU J1007.4+1237 (Fassbender et al 2011b).…”

Section: Introductionmentioning

confidence: 99%

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First simultaneous optical/near-infrared imaging of an X-ray selected, high-redshift cluster of galaxies with GROND

Pierini

Šuhada

Fassbender

et al. 2012

A&A

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Context. The XMM-Newton Distant Cluster Project is a serendipitous survey for clusters of galaxies at redshifts z ≥ 0.8 based on deep archival XMM-Newton observations. X-ray sources identified as extended are screened against existing optical all-sky surveys for galaxies, in case of candidate high-z clusters followed up with imaging at 4 m-class telescopes and, ultimately, multi-object spectroscopy at 8 m-class telescopes. Low-significance candidate high-z clusters are followed up with the seven-channel imager GROND (Gamma-Ray Burst Optical and Near-Infrared Detector) that is mounted at a 2 m-class telescope. Its unique capability of simultaneous imaging in the g , r , i , z , J, H, Ks bands enables the use of the photometric redshift technique. Aims. Observing strategy, data reduction and analysis, depth and accuracy of the simultaneous multi-wavelength photometry are discussed with the goal of establishing GROND as a useful instrument to confirm X-ray selected (high-z) clusters. Methods. The test case is XMMU J0338.7+0030, suggested to be at z ∼ 1.45 ± 0.15 (1σ) from the analysis of the z − H vs. H colour−magnitude diagram obtained from the follow-up imaging. Later VLT-FORS2 spectroscopy enabled us to identify four members, which set this cluster at z = 1.097 ± 0.002 (1σ). To reach a better knowledge of its galaxy population, we observed XMMU J0338.7+0030 with GROND for about 6 h. The publicly available photo-z code le Phare was used. Results. The Ks-band number counts of the non-stellar sources out of the 832 detected down to z ∼ 26 AB mag (1σ) in the 3.9×4.3 arcmin 2 region of XMMU J0338.7+0030 imaged at all GROND bands clearly exceed those computed in deep fields/survey areas at ∼20.5-22.5 AB mag. The photo-z's of the three imaged spectroscopic members yield z = 1.12 ± 0.09 (1σ). The spatial distribution and the properties of the GROND sources with a photo-z in the range 1.01-1.23 confirm the correspondence of the X-ray source with a galaxy over-density at a significance of at least 4.3σ. Candidate members that are spectro-photometrically classified as elliptical galaxies define a red locus in the i −z vs. z colour−magnitude diagram that is consistent with the red sequence of the cluster RDCS J0910+5422 at z = 1.106. XMMU J0338.7+0030 hosts also a population of bluer late-type spirals and irregulars. The starbursts among the photometric members populate both loci, consistently with previous results. Conclusions. The analysis of the available data set indicates that XMMU J0338.7+0030 is a low-mass cluster (M 200 ∼ 10 14 M ) at z = 1.1. With the photometric accuracy yielded by the present unoptimized multi-band observations with GROND, we not only confirm the spectroscopic redshift of this cluster but also show that it hosts a galaxy population that can still undergo significant bursts of star-formation activity.

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Section: Discussionmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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First simultaneous optical/near-infrared imaging of an X-ray selected, high-redshift cluster of galaxies with GROND

Pierini

Šuhada

Fassbender

et al. 2012

A&A

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“…Demarco et al 2007;Fassbender et al 2011;Muzzin et al 2012;Andreon et al 2014;Stanford et al 2014). Comparable work on more common, lower-mass haloes at z > 0.3 -the progenitors of today's massive clusters -is more difficult and hence more limited, but several studies have shown that group galaxies indeed evolve differently from the field, at least for z < 0.8 (e.g.…”

mentioning

confidence: 99%

Evidence for a change in the dominant satellite galaxy quenching mechanism atz = 1

Balogh

McGee

Mok

et al. 2016

Mon. Not. R. Astron. Soc.

133

230

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“…With total clean exposure time of 20 min, it is a valuable complement to the Calar Alto imaging data. For the reduction of the pre-imaging data we followed the same procedure as Schwope et al (2010) and Fassbender et al (2011a).…”

Section: Xmmu J03022-0001mentioning

confidence: 99%

Exploring the galaxy cluster-group transition regime at high redshifts

Šuhada

Fassbender

Nastasi

et al. 2011

A&A

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Context. Multi-wavelength surveys for clusters of galaxies are opening a window on the elusive high-redshift (z > 1) cluster population. Well controlled statistical samples of distant clusters will enable us to answer questions about their cosmological context, early assembly phases and the thermodynamical evolution of the intracluster medium. Aims. We report on the detection of two z > 1 systems, XMMU J0302.2-0001 and XMMU J1532.2-0836, as part of the XMM-Newton Distant Cluster Project (XDCP) sample. We investigate the nature of the sources, measure their spectroscopic redshift and determine their basic physical parameters. Methods. The results of the present paper are based on the analysis of XMM-Newton archival data, optical/near-infrared imaging and deep optical follow-up spectroscopy of the clusters. Results. We confirm the X-ray source XMMU J0302.2-0001 as a gravitationally bound, bona fide cluster of galaxies at spectroscopic redshift z = 1.185. We estimate its M 500 mass to (1.6 ± 0.3) × 10 14 M from its measured X-ray luminosity. This ranks the cluster among intermediate mass system. In the case of XMMU J1532.2-0836 we find the X-ray detection to be coincident with a dynamically bound system of galaxies at z = 1.358. Optical spectroscopy reveals the presence of a central active galactic nucleus, which can be a dominant source of the detected X-ray emission from this system. We provide upper limits of X-ray parameters for the system and discuss cluster identification challenges in the high-redshift low-mass cluster regime. A third, intermediate redshift (z = 0.647) cluster, XMMU J0302.1-0000, is serendipitously detected in the same field as XMMU J0302.2-0001. We provide its analysis as well.

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A pan-chromatic view of the galaxy cluster XMMU J1230.3+1339 atz= 0.975

Cited by 32 publications

References 106 publications

First simultaneous optical/near-infrared imaging of an X-ray selected, high-redshift cluster of galaxies with GROND

First simultaneous optical/near-infrared imaging of an X-ray selected, high-redshift cluster of galaxies with GROND

Evidence for a change in the dominant satellite galaxy quenching mechanism atz = 1

Exploring the galaxy cluster-group transition regime at high redshifts

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