X-ray spectroscopy of the core of the perseus cluster with suzaku: Elemental abundances in the intracluster medium

T. Tamura; Y. Maeda; K. Mitsuda; A. C. Fabian; J. S. Sanders; A. Furuzawa; J. P. Hughes; R. Iizuka; K. Matsushita; T. Tamagawa

doi:10.1088/0004-637X/705/1/L62

X-ray spectroscopy of the core of the perseus cluster with suzaku: Elemental abundances in the intracluster medium

T. Tamura, Y. Maeda, K. Mitsuda, A. C. Fabian, J. S. Sanders, A. Furuzawa, J. P. Hughes, R. Iizuka, K. Matsushita, T. Tamagawa

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

The results from Suzaku observations of the central region of the Perseus cluster are presented. Deep exposures with the X-ray Imaging Spectrometer provide high-quality X-ray spectra from the intracluster medium. X-ray lines from helium-like Cr and Mn have been detected significantly for the first time in clusters. In addition, elemental abundances of Ne, Mg, Si, S, Ar, Ca, Fe, and Ni are accurately measured within 10′ (or 220kpc) from the cluster center. The relative abundance ratios are found to be within a range of 0.8-1.5 times the solar value. These abundance ratios are compared with previous measurements, those in extremely metal-poor stars in the Galaxy, and theoretical models.

Original language	English
Pages (from-to)	L62-L66
Journal	Astrophysical Journal
Volume	705
Issue number	1 PART 2
DOIs	https://doi.org/10.1088/0004-637X/705/1/L62
Publication status	Published - 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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title = "X-ray spectroscopy of the core of the perseus cluster with suzaku: Elemental abundances in the intracluster medium",

abstract = "The results from Suzaku observations of the central region of the Perseus cluster are presented. Deep exposures with the X-ray Imaging Spectrometer provide high-quality X-ray spectra from the intracluster medium. X-ray lines from helium-like Cr and Mn have been detected significantly for the first time in clusters. In addition, elemental abundances of Ne, Mg, Si, S, Ar, Ca, Fe, and Ni are accurately measured within 10′ (or 220kpc) from the cluster center. The relative abundance ratios are found to be within a range of 0.8-1.5 times the solar value. These abundance ratios are compared with previous measurements, those in extremely metal-poor stars in the Galaxy, and theoretical models.",

author = "T. Tamura and Y. Maeda and K. Mitsuda and Fabian, {A. C.} and Sanders, {J. S.} and A. Furuzawa and Hughes, {J. P.} and R. Iizuka and K. Matsushita and T. Tamagawa",

year = "2009",

doi = "10.1088/0004-637X/705/1/L62",

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volume = "705",

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issn = "0047-1852",

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X-ray spectroscopy of the core of the perseus cluster with suzaku : Elemental abundances in the intracluster medium. / Tamura, T.; Maeda, Y.; Mitsuda, K.; Fabian, A. C.; Sanders, J. S.; Furuzawa, A.; Hughes, J. P.; Iizuka, R.; Matsushita, K.; Tamagawa, T.

In: Astrophysical Journal, Vol. 705, No. 1 PART 2, 2009, p. L62-L66.

Research output: Contribution to journal › Article › peer-review

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T2 - Elemental abundances in the intracluster medium

AU - Tamura, T.

AU - Maeda, Y.

AU - Mitsuda, K.

AU - Fabian, A. C.

AU - Sanders, J. S.

AU - Furuzawa, A.

AU - Hughes, J. P.

AU - Iizuka, R.

AU - Matsushita, K.

AU - Tamagawa, T.

PY - 2009

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AB - The results from Suzaku observations of the central region of the Perseus cluster are presented. Deep exposures with the X-ray Imaging Spectrometer provide high-quality X-ray spectra from the intracluster medium. X-ray lines from helium-like Cr and Mn have been detected significantly for the first time in clusters. In addition, elemental abundances of Ne, Mg, Si, S, Ar, Ca, Fe, and Ni are accurately measured within 10′ (or 220kpc) from the cluster center. The relative abundance ratios are found to be within a range of 0.8-1.5 times the solar value. These abundance ratios are compared with previous measurements, those in extremely metal-poor stars in the Galaxy, and theoretical models.

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