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29 results on '"Damsted, S."'

1. AXES-SDSS: comparison of SDSS galaxy groups with all-sky X-ray extended sources

Author

Damsted, S., Finoguenov, A., Lietzen, H., Mamon, G. A., Comparat, J., Tempel, E., Dmitrieva, I., Clerc, N., Collins, C., Gozaliasl, G., and Eckert, D.

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

We revisit the picture of X-ray emission of groups through the study of systematic differences in the optical properties of groups with and without X-ray emission and study the effect of large-scale density field on scaling relations. We present the identification of X-ray galaxy groups using a combination of RASS and SDSS data. We include new X-ray reanalysis of RASS, to include very extended (up to a size of half a degree) sources and account for differences in the limiting sensitivity towards compact and very extended X-ray emission. X-ray groups exhibit less scatter in the scaling relations and selecting the groups based on the extended X-ray emission leads to an additional scatter reduction. Most of the scatter for the optical groups is associated with a small (6%) fraction of outliers, primarily associated with low optical luminosity groups found in dense regions of the cosmic web. These groups are the primary candidates for being the contaminants in the optical group catalogues. Removing those groups from the optical group sample using optically measured properties only, leads to a substantial reduction in the scatter in the most scaling relations of the optical groups. We find a density dependence of both the X-ray and optical luminosity of groups, which we associate with the assembly bias. Abridged., Comment: 16 pages, A&A, in press

Published
2024

2. CODEX: Role of velocity substructure in the scaling relations of galaxy clusters

Author

Damsted, S., Finoguenov, A., Clerc, N., Davalgaite, I., Kirkpatrick, C. C., Mamon, G. A., Chitham, J. Ider, Kiiveri, K., Comparat, J., and Collins, C.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract

The use of galaxy clusters as cosmological probes relies on a detailed understanding of their properties. We aim to update the spectroscopic cluster identification of CODEX by running the spectroscopic group finder on the follow-up spectroscopy results and connecting the dynamical state of clusters to their scaling relations. We implemented a reproducible spectroscopic membership determination and cleaning procedures, based on the redMaPPer membership, running the spectroscopic group finder on the follow-up spectroscopy results and cleaning the membership for spectroscopic outliers. We applied the Anderson-Darling test for velocity substructure and analysed its influence on the scaling relations. We also tested the effect of the X-ray-to-optical centre offset on the scaling relations. We report on the scaling relations between richness, X-ray luminosity, and velocity dispersion for a complete sample of clusters with at least 15 members. Clusters with velocity substructure exhibit enhanced velocity dispersion for a given richness and are characterized by 2.5 times larger scatter. Clusters that have a strong offset in X-ray-to-optical centres have comparable scaling relations as clusters with substructure. We demonstrate that there is a consistency in the parameters of the scaling relations for the low- and high-richness galaxy clusters. Splitting the clusters by redshift, we note a decrease in scatter with redshift in all scaling relations. We localize the redshift range where a high scatter is observed to $z<0.15$, which is in agreement with the literature results on the scatter. We note that the increase in scatter for both high- and low-luminosity clusters is $z<0.15$, suggesting that both cooling and the resulting active galactic nucleus feedback are at the root of this scatter. Abridged., Comment: 23 pages, A&A in press, catalogs are released through CDS

Published
2023

3. Gravitational redshifting of galaxies in the SPIDERS cluster catalogue

Author

Mpetha, C. T., Collins, C. A., Clerc, N., Finoguenov, A., Peacock, J. A., Comparat, J., Schneider, D., Capasso, R., Damsted, S., Furnell, K., Merloni, A., Padilla, N. D., and Saro, A.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Data from the SPectroscopic IDentification of ERosita Sources (SPIDERS) are searched for a detection of the gravitational redshifting of light from $\sim\!20\,000$ galaxies in $\sim\!2500$ galaxy clusters using three definitions of the cluster centre: its Brightest Cluster Galaxy (BCG), the redMaPPer identified Central Galaxy (CG), or the peak of X-ray emission. Distributions of velocity offsets between galaxies and their host cluster's centre, found using observed redshifts, are created. The quantity $\hat{\Delta}$, the average of the radial velocity difference between the cluster members and the cluster systemic velocity, reveals information on the size of a combination of effects on the observed redshift, dominated by gravitational redshifting. The change of $\hat{\Delta}$ with radial distance is predicted for SPIDERS galaxies in General Relativity (GR), and $f(R)$ gravity, and compared to the observations. The values of $\hat{\Delta}=-13.5\pm4.7$ km s$^{-1}$, $\hat{\Delta}=-12.5\pm5.1$ km s$^{-1}$, and $\hat{\Delta}=-18.6\pm4.8$ km s$^{-1}$ for the BCG, X-ray and CG cases respectively broadly agree with the literature. There is no significant preference of one gravity theory over another, but all cases give a clear detection ($>2.5\sigma$) of $\hat{\Delta}$. The BCG centroid is deemed to be the most robust method in this analysis, due to no well defined central redshift when using an X-ray centroid, and CGs identified by redMaPPer with no associated spectroscopic redshift. For future gravitational redshift studies, an order of magnitude more galaxies, $\sim\!500\,000$, will be required-a possible feat with the forthcoming Vera C. Rubin Observatory, Euclid and eROSITA., Comment: Accepted for publication in MNRAS. 11 pages, 10 figures

Published
2021
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4. SPIDERS: An Overview of The Largest Catalogue of Spectroscopically Confirmed X-ray Galaxy Clusters

Author

Kirkpatrick, C. C., Clerc, N., Finoguenov, A., Damsted, S., Chitham, J. Ider, Kukkola, A. E., Gueguen, A., Furnell, K., Rykoff, E., Comparat, J., Saro, A., Capasso, R., Padilla, N., Erfanianfar, G., Mamon, G. A., Collins, C., Merloni, A., Brownstein, J. R., and Schneider, D. P.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

SPIDERS is the spectroscopic follow-up effort of the Sloan Digital Sky Survey IV (SDSS-IV) project for the identification of X-ray selected galaxy clusters. We present our catalogue of 2740 visually inspected galaxy clusters as a part of the SDSS Data Release 16 (DR16). Here we detail the target selection, our methods for validation of the candidate clusters, performance of the survey, the construction of the final sample, and a full description of what is found in the catalogue. Of the sample, the median number of members per cluster is approximately 10, with 818 having 15 or greater. We find that we are capable of validating over 99% of clusters when 5 redshifts are obtained below $z<0.3$ and when 9 redshifts are obtained above $z>0.3$. We discuss the improvements of this catalogue's identification of cluster using 33,340 redshifts, with $\Delta z_{\rm{phot}} / \Delta z_{\rm{spec}} \sim 100$, over other photometric and spectroscopic surveys, as well as present an update to previous ($\sigma - L_{X}$) and ($\sigma - \lambda$) relations. Finally, we present our cosmological constraints derived using the velocity dispersion function., Comment: 16 pages, 14 figures, Accepted for publication in MNRAS

Published
2021
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5. SPIDERS: overview of the X-ray galaxy cluster follow-up and the final spectroscopic data release

Author

Clerc, N., Kirkpatrick, C. C., Finoguenov, A., Capasso, R., Comparat, J., Damsted, S., Furnell, K., Kukkola, A. E., Chitham, J. Ider, Merloni, A., Salvato, M., Gueguen, A., Dwelly, T., Collins, C., Saro, A., Erfanianfar, G., Schneider, D. P., Brownstein, J., Mamon, G. A., Padilla, N., Jullo, E., and Bizyaev, D.

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

SPIDERS (The SPectroscopic IDentification of eROSITA Sources) is a large spectroscopic programme for X-ray selected galaxy clusters as part of the Sloan Digital Sky Survey-IV (SDSS-IV). We describe the final dataset in the context of SDSS Data Release 16 (DR16): the survey overall characteristics, final targeting strategies, achieved completeness and spectral quality, with special emphasis on its use as a galaxy cluster sample for cosmology applications. SPIDERS now consists of about 27,000 new optical spectra of galaxies selected within 4,000 photometric red sequences, each associated with an X-ray source. The excellent spectrograph efficiency and a robust analysis pipeline yield a spectroscopic redshift measurement success rate exceeding 98%, with a median velocity accuracy of 20 km s$^{-1}$ (at $z=0.2$). Using the catalogue of 2,740 X-ray galaxy clusters confirmed with DR16 spectroscopy, we reveal the three-dimensional map of the galaxy cluster distribution in the observable Universe up to $z\sim0.6$. We highlight the homogeneity of the member galaxy spectra among distinct regions of the galaxy cluster phase space. Aided by accurate spectroscopic redshifts and by a model of the sample selection effects, we compute the galaxy cluster X-ray luminosity function and we present its lack of evolution up to $z=0.6$. Finally we discuss the prospects of forthcoming large multiplexed spectroscopic programmes dedicated to follow up the next generation of all-sky X-ray source catalogues., Comment: 19 pages, 21 figures. Accepted for publication in MNRAS

Published
2020
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6. CODEX clusters. The Survey, the Catalog, and Cosmology of the X-ray Luminosity Function

Author

Finoguenov, A., Rykoff, E., Clerc, N., Costanzi, M., Hagstotz, S., Chitham, J. Ider, Kiiveri, K., Kirkpatrick, C. C., Capasso, R., Comparat, J., Damsted, S., Dupke, R., Erfanianfar, G., Henry, J. Patrick, Kaefer, F., Kneib, J-P., Lindholm, V., Rozo, E., van Waerbeke, L., and Weller, J.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Large area catalogs of galaxy clusters constructed from ROSAT All Sky Survey provide the base for our knowledge on the population of clusters thanks to the long-term multiwavelength efforts on their follow-up. Advent of large area photometric surveys superseding in depth previous all-sky data allows us to revisit the construction of X-ray cluster catalogs, extending the study to lower cluster masses and to higher redshifts and to provide the modelling of the selection function. We perform a wavelet detection of X-ray sources and make extensive simulations of the detection of clusters in the RASS data. We assign an optical richness to each of the 24,788 detected X-ray sources in the 10,382 square degrees of SDSS BOSS area, using redMaPPer version 5.2. We name this survey COnstrain Dark Energy with X-ray (CODEX) clusters. We show that there is no obvious separation of sources on galaxy clusters and AGN, based on distribution of systems on their richness. This is a combination of increasing number of galaxy groups and their selection as identification of an X-ray sources either by chance or due to groups hosting an AGN. To clean the sample, we use a cut on the optical richness at the level corresponding to the 10\% completeness of the survey and include it into the modelling of cluster selection function. We present the X-ray catalog extending to a redshift of 0.6 down to X-ray fluxes of $10^{-13}$ ergs s$^{-1}$ cm$^{-2}$. We provide the modelling of the sample selection and discuss the redshift evolution of the high end of the X-ray luminosity function (XLF). Our results on $z<0.3$ XLF are in agreement with previous studies, while we provide new constraints on the $0.3

Published
2019
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7. Mass Calibration of the CODEX Cluster Sample using SPIDERS Spectroscopy -- II. The X-ray Luminosity-Mass Relation

Author

Capasso, R., Mohr, J. J., Saro, A., Biviano, A., Clerc, N., Finoguenov, A., Klein, M., Grandis, S., Collins, C., Damsted, S., Kirkpatrick, C., and Kukkola, A.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We perform the calibration of the X-ray luminosity--mass scaling relation on a sample of 344 CODEX clusters with $z<0.66$ using the dynamics of their member galaxies. Spectroscopic follow-up measurements have been obtained from the SPIDERS survey, leading to a sample of 6,658 red member galaxies. We use the Jeans equation to calculate halo masses, assuming an NFW mass profile and analyzing a broad range of anisotropy profiles. With a scaling relation of the form $L_{\rm{X}} \propto \text{A}_{\rm{X}}M_{\text{200c}}^{\text{B}_{\rm{X}}} E(z)^2 (1+z)^{\gamma_{\rm{X}}}$, we find best fit parameters $ \text{A}_{\rm{X}}=5.7^{+0.4}_{-0.5} (\pm0.6)\times10^{43}\,\mathrm{erg\,s^{-1}}$, $\text{B}_{\rm{X}}=2.5\pm0.2(\pm0.07)$, $\gamma_{\rm{X}}=-2.6^{+1.1}_{-1.2}(\pm0.74)$, where we include systematic uncertainties in parentheses and for a pivot mass and redshift of $3\times10^{14}M_\odot$ and 0.16, respectively. We compare our constraints with previous results, and we combine our sample with the SPT SZE--selected cluster subsample observed with \XMM\, extending the validity of our results to a wider range of redshifts and cluster masses., Comment: 12 pages, 8 figures, published in MNRAS

Published
2019
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8. Stellar mass -- halo mass relation for the brightest central galaxies of X-ray clusters since z~0.65

Author

Erfanianfar, G., Finoguenov, A., Furnell, K., Popesso, P., Biviano, A., Wuyts, S., Collins, C. A., Mirkazemi, M., Comparat, J., Khosroshahi, H., Nandra, K., Capasso, R., Rykoff, E., Wilman, D., Merloni, A., Clerc, N., Salvato, M., Chitham, J. I., Kelvin, L. S., Gozaliasl, G., Weijmans, A., Brownstein, J., Egami, E., Pereira, M. J., Schneider, D. P., Kirkpatrick, C., Damsted, S., and Kukkola, A.

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

We present the brightest cluster galaxies (BCGs) catalog for SPectroscoic IDentification of eROSITA Sources (SPIDERS) DR14 cluster program value-added catalog. We list the 416 BCGs identified as part of this process, along with their stellar mass, star formation rates, and morphological properties. We identified the BCGs based on the available spectroscopic data from SPIDERS and photometric data from SDSS. We computed stellar masses and SFRs of the BCGs on the basis of SDSS, WISE, and GALEX photometry using spectral energy distribution fitting. Morphological properties for all BCGs were derived by Sersic profile fitting using the software package SIGMA in different optical bands (g,r,i). We combined this catalog with the BCGs of galaxy groups and clusters extracted from the deeper AEGIS, CDFS, COSMOS, XMM-CFHTLS, and XMM-XXL surveys to study the stellar mass - halo mass relation using the largest sample of X-ray groups and clusters known to date. This result suggests that the mass growth of the central galaxy is controlled by the hierarchical mass growth of the host halo. We find a strong correlation between the stellar mass of BCGs and the mass of their host halos. This relation shows no evolution since z $\sim$ 0.65. We measure a mean scatter of 0.21 and 0.25 for the stellar mass of BCGs in a given halo mass at low ( $0.1

Published
2019
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9. Mass Calibration of the CODEX Cluster Sample using SPIDERS Spectroscopy -- I. The Richness-Mass Relation

Author

Capasso, R., Mohr, J. J., Saro, A., Biviano, A., Clerc, N., Finoguenov, A., Grandis, S., Collins, C., Erfanianfar, G., Damsted, S., Kirkpatrick, C., and Kukkola, A.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We use galaxy dynamical information to calibrate the richness-mass scaling relation of a sample of 428 galaxy clusters that are members of the CODEX sample with redshifts up to z~0.7. These clusters were X-ray selected using the ROSAT All-Sky Survey (RASS), cross-matched to associated systems in the redMaPPer catalog from the Sloan Digital Sky Survey. The spectroscopic sample we analyze was obtained in the SPIDERS program and contains ~7800 red member galaxies. Adopting NFW mass and galaxy density profiles and a broad range of orbital anisotropy profiles, we use the Jeans equation to calculate halo masses. Modeling the scaling relation as $\lambda \propto \text{A}_{\lambda} {M_{\text{200c}}}^{\text{B}_{\lambda}} ({1+z})^{\gamma_{\lambda}}$, we find the parameter constraints $\text{A}_{\lambda}=38.6^{+3.1}_{-4.1}\pm3.9$, $\text{B}_{\lambda}=0.99^{+0.06}_{-0.07}\pm0.04$, and $\gamma_{\lambda}=-1.13^{+0.32}_{-0.34}\pm0.49$. We find good agreement with previously published mass trends with the exception of those from stacked weak lensing analyses. We note that although the lensing analyses failed to account for the Eddington bias, this is not enough to explain the differences. We suggest that differences in the levels of contamination between pure redMaPPer and RASS+redMaPPer samples could well contribute to these differences. The redshift trend we measure is more negative than but statistically consistent with previous results. We suggest that our measured redshift trend reflects a change in the cluster galaxy red sequence fraction with redshift, noting that the trend we measure is consistent with but somewhat stronger than an independently measured redshift trend in the red sequence fraction. We also examine the impact of a plausible model of correlated scatter in X-ray luminosity and optical richness, showing it has negligible impact on our results., Comment: 15 pages, 8 figures, published in MNRAS

Published
2018
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11. SPIDERS: an overview of the largest catalogue of spectroscopically confirmed x-ray galaxy clusters

Author

Kirkpatrick, C C, primary, Clerc, N, additional, Finoguenov, A, additional, Damsted, S, additional, Ider Chitham, J, additional, Kukkola, A E, additional, Gueguen, A, additional, Furnell, K, additional, Rykoff, E, additional, Comparat, J, additional, Saro, A, additional, Capasso, R, additional, Padilla, N, additional, Erfanianfar, G, additional, Mamon, G A, additional, Collins, C, additional, Merloni, A, additional, Brownstein, J R, additional, and Schneider, D P, additional

Published
2021
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12. Gravitational redshifting of galaxies in the SPIDERS cluster catalogue

Author

Mpetha, C T, primary, Collins, C A, additional, Clerc, N, additional, Finoguenov, A, additional, Peacock, J A, additional, Comparat, J, additional, Schneider, D, additional, Capasso, R, additional, Damsted, S, additional, Furnell, K, additional, Merloni, A, additional, Padilla, N D, additional, and Saro, A, additional

Published
2021
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13. Clustering of CODEX clusters

Author

Lindholm, V., primary, Finoguenov, A., additional, Comparat, J., additional, Kirkpatrick, C. C., additional, Rykoff, E., additional, Clerc, N., additional, Collins, C., additional, Damsted, S., additional, Ider Chitham, J., additional, and Padilla, N., additional

Published
2021
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14. CODEX clusters : Survey, catalog, and cosmology of the X-ray luminosity function

Author

Finoguenov, A., Rykoff, E., Clerc, N., Costanzi, M., Hagstotz, Steffen, Ider Chitham, J., Kiiveri, K., Kirkpatrick, C. C., Capasso, Raffaella, Comparat, J., Damsted, S., Dupke, R., Erfanianfar, G., Patrick Henry, J., Kaefer, F., Kneib, J.-P., Lindholm, V., Rozo, E., van Waerbeke, L., Weller, J., Finoguenov, A., Rykoff, E., Clerc, N., Costanzi, M., Hagstotz, Steffen, Ider Chitham, J., Kiiveri, K., Kirkpatrick, C. C., Capasso, Raffaella, Comparat, J., Damsted, S., Dupke, R., Erfanianfar, G., Patrick Henry, J., Kaefer, F., Kneib, J.-P., Lindholm, V., Rozo, E., van Waerbeke, L., and Weller, J.

Abstract

Context. Large area catalogs of galaxy clusters constructed from ROSAT All-Sky Survey provide the basis for our knowledge of the population of clusters thanks to long-term multiwavelength efforts to follow up observations of these clusters. Aims. The advent of large area photometric surveys superseding previous, in-depth all-sky data allows us to revisit the construction of X-ray cluster catalogs, extending the study to lower cluster masses and higher redshifts and providing modeling of the selection function. Methods. We performed a wavelet detection of X-ray sources and made extensive simulations of the detection of clusters in the RASS data. We assigned an optical richness to each of the 24 788 detected X-ray sources in the 10 382 square degrees of the Baryon Oscillation Spectroscopic Survey area using red sequence cluster finder redMaPPer version 5.2 run on Sloan Digital Sky Survey photometry. We named this survey COnstrain Dark Energy with X-ray (CODEX) clusters. Results. We show that there is no obvious separation of sources on galaxy clusters and active galactic nuclei (AGN) based on the distribution of systems on their richness. This is a combination of an increasing number of galaxy groups and their selection via the identification of X-ray sources either by chance or by groups hosting an AGN. To clean the sample, we use a cut on the optical richness at the level corresponding to the 10% completeness of the survey and include it in the modeling of the cluster selection function. We present the X-ray catalog extending to a redshift of 0.6. Conclusions. The CODEX suvey is the first large area X-ray selected catalog of northern clusters reaching fluxes of 10−13 ergs s−1 cm−2. We provide modeling of the sample selection and discuss the redshift evolution of the high end of the X-ray luminosity function (XLF). Our results on z < 0.3 XLF agree with previous studies, while we provide new constraints on the 0.3 < z < 0.6 XLF. We find a lack of strong re

Published
2020
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15. Mass calibration of the CODEX cluster sample using SPIDERS spectroscopy - II. The X-ray luminosity-mass relation

Author

Capasso, Raffaella, Mohr, J. J., Saro, A., Biviano, A., Clerc, N., Finoguenov, A., Klein, M., Grandis, S., Collins, C., Damsted, S., Kirkpatrick, C., Kukkola, A., Capasso, Raffaella, Mohr, J. J., Saro, A., Biviano, A., Clerc, N., Finoguenov, A., Klein, M., Grandis, S., Collins, C., Damsted, S., Kirkpatrick, C., and Kukkola, A.

Abstract

We perform the calibration of the X-ray luminosity-mass scaling relation on a sample of 344 CODEX clusters with z < 0.66 using the dynamics of their member galaxies. Spectroscopic follow-up measurements have been obtained from the SPIDERS survey, leading to a sample of 6658 red member galaxies. We use the Jeans equation to calculate halo masses, assuming an NFW mass profile and analysing a broad range of anisotropy profiles. With a scaling relation of the form L-X proportional to A(X)M(200c)(BX) E(z)(2)(1 + z)(gamma x), we find best-fitting parameters A(X) = 0.62(-0.06)(+0.05) (+/- 0.06) x 10(44) erg s(-)(1), B-X = 2.35(-0.18)(+0.21)(+/- 0.09), gamma(X) = -2.77(-1.05)(+1.06)(+/- 0.79), where we include systematic uncertainties in parentheses and for a pivot mass and redshift of 3 x 10(14) M-circle dot and 0.16, respectively. We compare our constraints with previous results, and we combine our sample with the SPT SZE-selected cluster subsample observed with XMM-Newton extending the validity of our results to a wider range of redshifts and cluster masses.

Published
2020
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16. Stellar mass-halo mass relation for the brightest central galaxies of X-ray clusters since z similar to 0.65

Author

Erfanianfar, G., Finoguenov, A., Furnell, K., Popesso, P., Biviano, A., Wuyts, S., Collins, C. A., Mirkazemi, M., Comparat, J., Khosroshahi, H., Nandra, K., Capasso, R., Rykoff, E., Wilman, D., Merloni, A., Clerc, N., Salvato, M., Chitham, J. I., Kelvin, L. S., Gozaliasl, G., Weijmans, A., Brownstein, J., Egami, E., Pereira, M. J., Schneider, D. P., Kirkpatrick, C., Damsted, S., Kukkola, A., Department of Physics, Helsinki Institute of Physics, and Particle Physics and Astrophysics

Subjects
DEEP, RICH CLUSTERS, Astrophysics::Cosmology and Extragalactic Astrophysics, STAR-FORMATION RATES, 115 Astronomy, Space science, OSCILLATION SPECTROSCOPIC SURVEY, EVOLUTION, SIMULATIONS, CONNECTION, MODEL, galaxies: clusters: general, galaxies: groups: general, X-rays: galaxies: clusters, galaxies: elliptical and lenticular, cD, LUMINOSITY, Astrophysics::Solar and Stellar Astrophysics, galaxies: evolution, PHOTOMETRIC REDSHIFTS, Astrophysics::Galaxy Astrophysics
Abstract

We present the brightest cluster galaxies (BCGs) catalog for SPectroscoic IDentification of eROSITA Sources (SPIDERS) DR14 cluster program value-added catalog. We list the 416 BCGs identified as part of this process, along with their stellar mass, star formation rates (SFRs), and morphological properties. We identified the BCGs based on the available spectroscopic data from SPIDERS and photometric data from SDSS. We computed stellar masses and SFRs of the BCGs on the basis of SDSS, WISE, and GALEX photometry using spectral energy distribution fitting. Morphological properties for all BCGs were derived by Sersic profile fitting using the software package SIGMA in different optical bands (g,r,i). We combined this catalog with the BCGs of galaxy groups and clusters extracted from the deeper AEGIS, CDFS, COSMOS, XMM-CFHTLS, and XMM-XXL surveys to study the stellar mass-halo mass relation using the largest sample of X-ray groups and clusters known to date. This result suggests that the mass growth of the central galaxy is controlled by the hierarchical mass growth of the host halo. We find a strong correlation between the stellar mass of BCGs and the mass of their host halos. This relation shows no evolution since z similar to 0.65. We measure a mean scatter of 0.21 and 0.25 for the stellar mass of BCGs in a given halo mass at low (0.1

Published
2019

17. Cosmological constraints from CODEX galaxy clusters spectroscopically confirmed by SDSS-IV/SPIDERS DR16

Author

Ider Chitham, J, primary, Comparat, J, additional, Finoguenov, A, additional, Clerc, N, additional, Kirkpatrick, C, additional, Damsted, S, additional, Kukkola, A, additional, Capasso, R, additional, Nandra, K, additional, Merloni, A, additional, Bulbul, E, additional, Rykoff, E S, additional, Schneider, D P, additional, and Brownstein, J R, additional

Published
2020
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18. SPIDERS: overview of the X-ray galaxy cluster follow-up and the final spectroscopic data release

Author

Clerc, N, primary, Kirkpatrick, C C, additional, Finoguenov, A, additional, Capasso, R, additional, Comparat, J, additional, Damsted, S, additional, Furnell, K, additional, Kukkola, A E, additional, Ider Chitham, J, additional, Merloni, A, additional, Salvato, M, additional, Gueguen, A, additional, Dwelly, T, additional, Collins, C, additional, Saro, A, additional, Erfanianfar, G, additional, Schneider, D P, additional, Brownstein, J, additional, Mamon, G A, additional, Padilla, N, additional, Jullo, E, additional, and Bizyaev, D, additional

Published
2020
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19. CODEX clusters

Author

Finoguenov, A., primary, Rykoff, E., additional, Clerc, N., additional, Costanzi, M., additional, Hagstotz, S., additional, Ider Chitham, J., additional, Kiiveri, K., additional, Kirkpatrick, C. C., additional, Capasso, R., additional, Comparat, J., additional, Damsted, S., additional, Dupke, R., additional, Erfanianfar, G., additional, Patrick Henry, J., additional, Kaefer, F., additional, Kneib, J.-P., additional, Lindholm, V., additional, Rozo, E., additional, van Waerbeke, L., additional, and Weller, J., additional

Published
2020
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21. Stellar mass–halo mass relation for the brightest central galaxies of X-ray clusters since z ∼ 0.65

Author

Erfanianfar, G., primary, Finoguenov, A., additional, Furnell, K., additional, Popesso, P., additional, Biviano, A., additional, Wuyts, S., additional, Collins, C. A., additional, Mirkazemi, M., additional, Comparat, J., additional, Khosroshahi, H., additional, Nandra, K., additional, Capasso, R., additional, Rykoff, E., additional, Wilman, D., additional, Merloni, A., additional, Clerc, N., additional, Salvato, M., additional, Chitham, J. I., additional, Kelvin, L. S., additional, Gozaliasl, G., additional, Weijmans, A., additional, Brownstein, J., additional, Egami, E., additional, Pereira, M. J., additional, Schneider, D. P., additional, Kirkpatrick, C., additional, Damsted, S., additional, and Kukkola, A., additional

Published
2019
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24. SPIDERS: overview of the X-ray galaxy cluster follow-up and the final spectroscopic data release

Author

A. Saro, Mara Salvato, K. Furnell, S. Damsted, Gary A. Mamon, J. Ider Chitham, G. Erfanianfar, Eric Jullo, Tom Dwelly, Johan Comparat, C. C. Kirkpatrick, Chris A. Collins, R. Capasso, Nicolas Clerc, Dmitry Bizyaev, Alexis Finoguenov, J. R. Brownstein, A. Gueguen, A. Kukkola, Donald P. Schneider, N. Padilla, Andrea Merloni, Clerc, N, C Kirkpatrick, C, Finoguenov, A, Capasso, R, Comparat, J, Damsted, S, Furnell, K, E Kukkola, A, Ider&nbsp, J, Chitham, Merloni, A, Salvato, M, Gueguen, A, Dwelly, T, Collins, C, Saro, A, Erfanianfar, G, P Schneider, D, Brownstein, J, A Mamon, G, Padilla, N, Jullo, E, Bizyaev, D, Department of Physics, Helsinki Institute of Physics, Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Department of Physics [Helsinki], Falculty of Science [Helsinki], Helsingin yliopisto = Helsingfors universitet = University of Helsinki-Helsingin yliopisto = Helsingfors universitet = University of Helsinki, Helsinki Institute of Physics (HIP), Helsingin yliopisto = Helsingfors universitet = University of Helsinki, Max Planck Institute for Extraterrestrial Physics (MPE), Max-Planck-Gesellschaft, Oskar Klein Centre [Stockholm], Stockholm University, Astrophysics Research Institute [Liverpool] (ARI), Liverpool John Moores University (LJMU), Max-Planck-Institut für Extraterrestrische Physik (MPE), Università degli studi di Trieste = University of Trieste, INAF - Osservatorio Astronomico di Trieste (OAT), Istituto Nazionale di Astrofisica (INAF), Department of Astronomy and Astrophysics [PennState], Pennsylvania State University (Penn State), Penn State System-Penn State System, University of Utah, Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Pontificia Universidad Católica de Chile (UC), Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Apache point observatory, Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), University of Helsinki-University of Helsinki, University of Helsinki, University of Trieste, and Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES)

Subjects
II, SAMPLE, TELESCOPE, media_common.quotation_subject, FOS: Physical sciences, Observable universe, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 01 natural sciences, Cosmology, galaxies: clusters: general, cosmology: observations, X-rays: galaxies: clusters, Astrophysics - Astrophysics of Galaxies, EROSITA, ROSAT, 0103 physical sciences, clusters: general [galaxies], 010303 astronomy & astrophysics, Spectrograph, QC, Astrophysics::Galaxy Astrophysics, Galaxy cluster, QB, media_common, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], IDENTIFICATION, 010308 nuclear & particles physics, MASS CALIBRATION, Astronomy and Astrophysics, 115 Astronomy, Space science, Redshift, Galaxy, galaxies: cluster [X-rays], RESOLUTION, Space and Planetary Science, Sky, Astrophysics of Galaxies (astro-ph.GA), COSMOLOGY, DIGITAL SKY SURVEY, [SDU.ASTR.GA]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA], observation [cosmology]
Abstract

SPIDERS (The SPectroscopic IDentification of eROSITA Sources) is a large spectroscopic programme for X-ray selected galaxy clusters as part of the Sloan Digital Sky Survey-IV (SDSS-IV). We describe the final dataset in the context of SDSS Data Release 16 (DR16): the survey overall characteristics, final targeting strategies, achieved completeness and spectral quality, with special emphasis on its use as a galaxy cluster sample for cosmology applications. SPIDERS now consists of about 27,000 new optical spectra of galaxies selected within 4,000 photometric red sequences, each associated with an X-ray source. The excellent spectrograph efficiency and a robust analysis pipeline yield a spectroscopic redshift measurement success rate exceeding 98%, with a median velocity accuracy of 20 km s$^{-1}$ (at $z=0.2$). Using the catalogue of 2,740 X-ray galaxy clusters confirmed with DR16 spectroscopy, we reveal the three-dimensional map of the galaxy cluster distribution in the observable Universe up to $z\sim0.6$. We highlight the homogeneity of the member galaxy spectra among distinct regions of the galaxy cluster phase space. Aided by accurate spectroscopic redshifts and by a model of the sample selection effects, we compute the galaxy cluster X-ray luminosity function and we present its lack of evolution up to $z=0.6$. Finally we discuss the prospects of forthcoming large multiplexed spectroscopic programmes dedicated to follow up the next generation of all-sky X-ray source catalogues., 19 pages, 21 figures. Accepted for publication in MNRAS

Published
2020

25. Gravitational redshifting of galaxies in the SPIDERS cluster catalogue

Author

R. Capasso, Chris A. Collins, Nicolas Clerc, D. P. Schneider, Nelson Padilla, K. Furnell, Alexis Finoguenov, Johan Comparat, S. Damsted, Andrea Merloni, John A. Peacock, A. Saro, C. T. Mpetha, Astrophysics Research Institute [Liverpool] (ARI), Liverpool John Moores University (LJMU), Institute for Astronomy [Edinburgh] (IfA), University of Edinburgh, Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Department of Physics [Helsinki], Falculty of Science [Helsinki], University of Helsinki-University of Helsinki, Max Planck Institute for Extraterrestrial Physics (MPE), Max-Planck-Gesellschaft, Institute for Gravitation and the Cosmos [PennState], Pennsylvania State University (Penn State), Penn State System-Penn State System, Oskar Klein Centre [Stockholm], Stockholm University, Pontificia Universidad Católica de Chile (UC), INAF - Osservatorio Astronomico di Trieste (OAT), Istituto Nazionale di Astrofisica (INAF), Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (INFN, Sezione di Trieste), Istituto Nazionale di Fisica Nucleare (INFN), Università degli studi di Trieste, Instituto de Astrofisica [Santiago], Department of Physics, Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Helsingin yliopisto = Helsingfors universitet = University of Helsinki-Helsingin yliopisto = Helsingfors universitet = University of Helsinki, Università degli studi di Trieste = University of Trieste, Mpetha, C. T., Collins, C. A., Clerc, N., Finoguenov, A., Peacock, J. A., Comparat, J., Schneider, D., Capasso, R., Damsted, S., Furnell, K., Merloni, A., Padilla, N. D., and Saro, A.

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), General relativity, galaxies clusters general, galaxies kinematics and dynamics gravitation, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Gravitation, 0103 physical sciences, Brightest cluster galaxy, 10. No inequality, 010303 astronomy & astrophysics, Galaxy cluster, galaxies: kinematics and dynamics, Astrophysics::Galaxy Astrophysics, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Astronomy and Astrophysics, 115 Astronomy, Space science, Galaxy, Redshift, Radial velocity, Space and Planetary Science, gravitation, galaxies: clusters: general, Gravitational redshift, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Data from the SPectroscopic IDentification of ERosita Sources (SPIDERS) are searched for a detection of the gravitational redshifting of light from $\sim\!20\,000$ galaxies in $\sim\!2500$ galaxy clusters using three definitions of the cluster centre: its Brightest Cluster Galaxy (BCG), the redMaPPer identified Central Galaxy (CG), or the peak of X-ray emission. Distributions of velocity offsets between galaxies and their host cluster's centre, found using observed redshifts, are created. The quantity $\hat{\Delta}$, the average of the radial velocity difference between the cluster members and the cluster systemic velocity, reveals information on the size of a combination of effects on the observed redshift, dominated by gravitational redshifting. The change of $\hat{\Delta}$ with radial distance is predicted for SPIDERS galaxies in General Relativity (GR), and $f(R)$ gravity, and compared to the observations. The values of $\hat{\Delta}=-13.5\pm4.7$ km s$^{-1}$, $\hat{\Delta}=-12.5\pm5.1$ km s$^{-1}$, and $\hat{\Delta}=-18.6\pm4.8$ km s$^{-1}$ for the BCG, X-ray and CG cases respectively broadly agree with the literature. There is no significant preference of one gravity theory over another, but all cases give a clear detection ($>2.5\sigma$) of $\hat{\Delta}$. The BCG centroid is deemed to be the most robust method in this analysis, due to no well defined central redshift when using an X-ray centroid, and CGs identified by redMaPPer with no associated spectroscopic redshift. For future gravitational redshift studies, an order of magnitude more galaxies, $\sim\!500\,000$, will be required-a possible feat with the forthcoming Vera C. Rubin Observatory, Euclid and eROSITA., Comment: Accepted for publication in MNRAS. 11 pages, 10 figures

Published
2021

26. CODEX clusters. The Survey, the Catalog, and Cosmology of the X-ray Luminosity Function

Author

Nicolas Clerc, J. Patrick Henry, L. van Waerbeke, Florian Kaefer, Eli S. Rykoff, M. Costanzi, K. Kiiveri, Alexis Finoguenov, R. A. Dupke, Eduardo Rozo, Johan Comparat, Steffen Hagstotz, S. Damsted, Jochen Weller, V. Lindholm, G. Erfanianfar, C. C. Kirkpatrick, R. Capasso, J. P. Kneib, J. Ider Chitham, Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Department of Physics, Helsinki Institute of Physics, Particle Physics and Astrophysics, Finoguenov, A., Rykoff, E., Clerc, N., Costanzi, M., Hagstotz, S., Ider Chitham, J., Kiiveri, K., Kirkpatrick, C. C., Capasso, R., Comparat, J., Damsted, S., Dupke, R., Erfanianfar, G., Patrick Henry, J., Kaefer, F., Kneib, J. -P., Lindholm, V., Rozo, E., Van Waerbeke, L., and Weller, J.

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), Large-scale structure of Universe, Astrophysics::High Energy Astrophysical Phenomena, Population, rosat, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Surveys, 01 natural sciences, Cosmology, Galaxy group, galaxies, 0103 physical sciences, ROSAT, Galaxy formation and evolution, spiders spectroscopy, education, 010303 astronomy & astrophysics, Galaxy cluster, Astrophysics::Galaxy Astrophysics, Luminosity function (astronomy), Physics, education.field_of_study, 010308 nuclear & particles physics, Astronomy and Astrophysics, 115 Astronomy, Space science, Redshift, sky survey, Space and Planetary Science, Catalogs, mass calibration, Catalog, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Large area catalogs of galaxy clusters constructed from ROSAT All Sky Survey provide the base for our knowledge on the population of clusters thanks to the long-term multiwavelength efforts on their follow-up. Advent of large area photometric surveys superseding in depth previous all-sky data allows us to revisit the construction of X-ray cluster catalogs, extending the study to lower cluster masses and to higher redshifts and to provide the modelling of the selection function. We perform a wavelet detection of X-ray sources and make extensive simulations of the detection of clusters in the RASS data. We assign an optical richness to each of the 24,788 detected X-ray sources in the 10,382 square degrees of SDSS BOSS area, using redMaPPer version 5.2. We name this survey COnstrain Dark Energy with X-ray (CODEX) clusters. We show that there is no obvious separation of sources on galaxy clusters and AGN, based on distribution of systems on their richness. This is a combination of increasing number of galaxy groups and their selection as identification of an X-ray sources either by chance or due to groups hosting an AGN. To clean the sample, we use a cut on the optical richness at the level corresponding to the 10\% completeness of the survey and include it into the modelling of cluster selection function. We present the X-ray catalog extending to a redshift of 0.6 down to X-ray fluxes of $10^{-13}$ ergs s$^{-1}$ cm$^{-2}$. We provide the modelling of the sample selection and discuss the redshift evolution of the high end of the X-ray luminosity function (XLF). Our results on $z, Comment: 10 pages, 11 figures, A&A in press, part of SDSS DR16 data release

Published
2020

27. Mass calibration of the CODEX cluster sample using SPIDERS spectroscopy – II. The X-ray luminosity–mass relation

Author

Alexis Finoguenov, Matthias Klein, Chris A. Collins, Nicolas Clerc, Joseph J. Mohr, A. Saro, A. Kukkola, Sebastian Grandis, S. Damsted, R. Capasso, Andrea Biviano, C. C. Kirkpatrick, Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Department of Physics, Particle Physics and Astrophysics, Kukkola, A, Kirkpatrick, C, Damsted, S, Collins, C, Grandis, S, Klein, M, Finoguenov, A, Clerc, N, Biviano, A, Saro, A, Mohr, J J, and Capasso, R

Subjects
galaxies: clusters: general, galaxies: evolution, galaxies: kinematics and dynamics, large-scale structure of Universe, Astrophysics - Cosmology and Nongalactic Astrophysics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), COSMOLOGICAL PARAMETERS, Dark matter, FOS: Physical sciences, EFFICIENT, Astrophysics, SCALING RELATIONS, 01 natural sciences, Luminosity, 0103 physical sciences, kinematics and dynamic [galaxies], DARK-MATTER, clusters: general [galaxies], TOOL, Spectroscopy, 010303 astronomy & astrophysics, Galaxy cluster, QC, evolution [galaxies], QB, Physics, RASS, 010308 nuclear & particles physics, X-ray, Astronomy and Astrophysics, PROFILES, VELOCITY, 115 Astronomy, Space science, Galaxy, Redshift, Space and Planetary Science, Halo, GALAXY CLUSTERS, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

We perform the calibration of the X-ray luminosity--mass scaling relation on a sample of 344 CODEX clusters with $z, Comment: 12 pages, 8 figures, published in MNRAS

Published
2020

28. Erratum: Mass calibration of the CODEX cluster sample using SPIDERS spectroscopy - I. The richness-mass relation

Author

R. Capasso, G. Erfanianfar, Sebastian Grandis, Andrea Biviano, C. C. Kirkpatrick, S. Damsted, A. Kukkola, Joseph J. Mohr, A. Saro, Alexis Finoguenov, Chris A. Collins, Nicolas Clerc, Capasso, R., Mohr, J. J., Saro, A., Biviano, A., Clerc, N., Finoguenov, A., Grandis, S., Collins, C., Erfanianfar, G., Damsted, S., Kirkpatrick, C., Kukkola, A., Ludwig-Maximilians-Universität München (LMU), Excellence Cluster Universe, Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM), Max Planck Institute for Extraterrestrial Physics (MPE), Max-Planck-Gesellschaft, INAF - Osservatorio Astronomico di Trieste (OAT), Istituto Nazionale di Astrofisica (INAF), Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Université Fédérale Toulouse Midi-Pyrénées-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Department of Physics [Helsinki], Falculty of Science [Helsinki], University of Helsinki-University of Helsinki, Astrophysics Research Institute [Liverpool] (ARI), Liverpool John Moores University (LJMU), Technische Universität München [München] (TUM), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), and Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], 010308 nuclear & particles physics, Calibration (statistics), Astronomy and Astrophysics, Astrophysics, errata, addenda, galaxies: clusters: general, galaxies: evolution, galaxies: kinematics and dynamics, large-scale structure of Universe, 01 natural sciences, Space and Planetary Science, 0103 physical sciences, kinematics and dynamic [galaxies], Mass relation, clusters: general [galaxies], Cluster sampling, Species richness, Spectroscopy, 010303 astronomy & astrophysics, ComputingMilieux_MISCELLANEOUS, evolution [galaxies]
Abstract

This is a correction to: Monthly Notices of the Royal Astronomical Society, Volume 486, Issue 2, June 2019, Pages 1594–1607, https://doi.org/10.1093/mnras/stz931

Published
2019

29. Mass Calibration of the CODEX Cluster Sample using SPIDERS Spectroscopy -- I. The Richness-Mass Relation

Author

A. Kukkola, Chris A. Collins, Nicolas Clerc, S. Damsted, R. Capasso, Joseph J. Mohr, A. Saro, Alexis Finoguenov, G. Erfanianfar, Sebastian Grandis, Andrea Biviano, C. C. Kirkpatrick, Ludwig-Maximilians-Universität München (LMU), Excellence Cluster Universe, Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM), Max Planck Institute for Extraterrestrial Physics (MPE), Max-Planck-Gesellschaft, Mathematisches Institut [München] (LMU), INAF - Osservatorio Astronomico di Trieste (OAT), Istituto Nazionale di Astrofisica (INAF), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Department of Physics [Helsinki], Falculty of Science [Helsinki], Helsingin yliopisto = Helsingfors universitet = University of Helsinki-Helsingin yliopisto = Helsingfors universitet = University of Helsinki, Astrophysics Research Institute [Liverpool] (ARI), Liverpool John Moores University (LJMU), Ludwig Maximilian University [Munich] (LMU), Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS), Univ Helsinki, Dept Phys, Gustaf Hallstromin Katu 2,POB 64, Helsinki 00014, Finland, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Capasso, R., Mohr, J. J., Saro, A., Biviano, A., Clerc, N., Finoguenov, A., Grandis, S., Collins, C., Erfanianfar, G., Damsted, S., Kirkpatrick, C., Kukkola, A., Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Université Fédérale Toulouse Midi-Pyrénées-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), University of Helsinki-University of Helsinki, University of Helsinki, Department of Physics, Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), and Department of Physics

Subjects
galaxies: clusters: general, galaxies: evolution, galaxies: kinematics and dynamics, large-scale structure of Universe, Astrophysics - Cosmology and Nongalactic Astrophysics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], DES YEAR 1, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, SCALING RELATIONS, 01 natural sciences, PARAMETERS, Luminosity, kinematics and dynamic [galaxies], 0103 physical sciences, ROSAT, clusters: general [galaxies], 010303 astronomy & astrophysics, evolution [galaxies], Galaxy cluster, Weak gravitational lensing, ComputingMilieux_MISCELLANEOUS, Astrophysics::Galaxy Astrophysics, Luminosity function (astronomy), QB, Physics, 010308 nuclear & particles physics, CONSTRAINTS, Astronomy and Astrophysics, PROFILES, 115 Astronomy, Space science, EVOLUTION, Redshift, Galaxy, DARK-MATTER HALOES, LUMINOSITY FUNCTION, 13. Climate action, Space and Planetary Science, COSMOLOGY, High Energy Physics::Experiment, Halo, GALAXY CLUSTERS, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

We use galaxy dynamical information to calibrate the richness-mass scaling relation of a sample of 428 galaxy clusters that are members of the CODEX sample with redshifts up to z~0.7. These clusters were X-ray selected using the ROSAT All-Sky Survey (RASS), cross-matched to associated systems in the redMaPPer catalog from the Sloan Digital Sky Survey. The spectroscopic sample we analyze was obtained in the SPIDERS program and contains ~7800 red member galaxies. Adopting NFW mass and galaxy density profiles and a broad range of orbital anisotropy profiles, we use the Jeans equation to calculate halo masses. Modeling the scaling relation as $\lambda \propto \text{A}_{\lambda} {M_{\text{200c}}}^{\text{B}_{\lambda}} ({1+z})^{\gamma_{\lambda}}$, we find the parameter constraints $\text{A}_{\lambda}=38.6^{+3.1}_{-4.1}\pm3.9$, $\text{B}_{\lambda}=0.99^{+0.06}_{-0.07}\pm0.04$, and $\gamma_{\lambda}=-1.13^{+0.32}_{-0.34}\pm0.49$. We find good agreement with previously published mass trends with the exception of those from stacked weak lensing analyses. We note that although the lensing analyses failed to account for the Eddington bias, this is not enough to explain the differences. We suggest that differences in the levels of contamination between pure redMaPPer and RASS+redMaPPer samples could well contribute to these differences. The redshift trend we measure is more negative than but statistically consistent with previous results. We suggest that our measured redshift trend reflects a change in the cluster galaxy red sequence fraction with redshift, noting that the trend we measure is consistent with but somewhat stronger than an independently measured redshift trend in the red sequence fraction. We also examine the impact of a plausible model of correlated scatter in X-ray luminosity and optical richness, showing it has negligible impact on our results., Comment: 15 pages, 8 figures, published in MNRAS

Published
2018
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