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Mass calibration of...
Mass calibration of the CODEX cluster sample using SPIDERS spectroscopy - II. The X-ray luminosity-mass relation
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- Capasso, Raffaella (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Ludwig-Maximilians-Universität, Germany; Excellence Cluster Universe, Germany; INAF-Osservatorio Astronomico di Trieste, Italy; IFPU - Institute for Fundamental Physics of the Universe, Italy
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Mohr, J. J. (author)
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Saro, A. (author)
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Biviano, A. (author)
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Clerc, N. (author)
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Finoguenov, A. (author)
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Klein, M. (author)
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Grandis, S. (author)
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Collins, C. (author)
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Damsted, S. (author)
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Kirkpatrick, C. (author)
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Kukkola, A. (author)
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(creator_code:org_t)
- 2020-04-14
- 2020
- English.
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In: Monthly notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 494:2, s. 2736-2746
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Abstract
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- 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.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- galaxies: clusters: general
- galaxies: evolution
- galaxies: kinematics and dynamics
- large-scale structure of Universe
Publication and Content Type
- ref (subject category)
- art (subject category)
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Capasso, Raffael ...
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Mohr, J. J.
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Saro, A.
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Biviano, A.
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Clerc, N.
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Finoguenov, A.
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show more...
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Klein, M.
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Grandis, S.
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Collins, C.
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Damsted, S.
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Kirkpatrick, C.
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Kukkola, A.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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Stockholm University