2025PASJ...77S.242X

Query : 2025PASJ...77S.242X

2025PASJ...77S.242X - Publ. Astron. Soc. Jap., 77, 242-253 (2025/September-0)

Constraining gas motion and non-thermal pressure beyond the core of the Abell 2029 galaxy cluster with XRISM.

XRISM COLLABORATION, AUDARD M., AWAKI H., BALLHAUSEN R., BAMBA A., BEHAR E., BOISSAY-MALAQUIN R., BRENNEMAN L., BROWN G.V., CORRALES L., COSTANTINI E., CUMBEE R., DIAZ TRIGO M., DONE C., DOTANI T., EBISAWA K., ECKART M.E., ECKERT D., EGUCHI S., ENOTO T., EZOE Y., FOSTER A., FUJIMOTO R., FUJITA Y., FUKAZAWA Y., FUKUSHIMA K., FURUZAWA A., GALLO L.C., GARCIA J.A., GU L., GUAINAZZI M., HAGINO K., HAMAGUCHI K., HATSUKADE I., HAYASHI K., HAYASHI T., HELL N., HODGES-KLUCK E., HORNSCHEMEIER A., ICHINOHE Y., ISHI D., ISHIDA M., ISHIKAWA K., ISHISAKI Y., KAASTRA J., KALLMAN T., KARA E., KATSUDA S., KANEMARU Y., KELLEY R., KILBOURNE C., KITAMOTO S., KOBAYASHI S., KOHMURA T., KUBOTA A., LEUTENEGGER M.A., LOEWENSTEIN M., MAEDA Y., MARKEVITCH M., MATSUMOTO H., MATSUSHITA K., McCAMMON D., McNAMARA B., MERNIER F., MILLER E., MILLER J.M., MITSUISHI I., MIZUMOTO M., MIZUNO T., MORI K., MUKAI K., MURAKAMI H., MUSHOTZKY R., NAKAJIMA H., NAKAZAWA K., NESS J.-U., NOBUKAWA K., NOBUKAWA M., NODA H., ODAKA H., OGAWA S., OGORZALEK A., OKAJIMA T., OTA N., PALTANI S., PETRE R., PLUCINSKY P., PORTER F.S., POTTSCHMIDT K., SATO K., SATO T., SAWADA M., SETA H., SHIDATSU M., SIMIONESCU A., SMITH R., SUZUKI H., SZYMKOWIAK A., TAKAHASHI H., TAKEO M., TAMAGAWA T., TAMURA K., TANAKA T., TANIMOTO A., TASHIRO M., TERADA Y., TERASHIMA Y., TSUBOI Y., TSUJIMOTO M., TSUNEMI H., TSURU T.G., UCHIDA H., UCHIDA N., UCHIDA Y., UCHIYAMA H., UEDA Y., UNO S., VINK J., WATANABE S., WILLIAMS B.J., YAMADA S., YAMADA S., YAMAGUCHI H., YAMAOKA K., YAMASAKI N., YAMAUCHI M., YAMAUCHI S., YAQOOB T., YONEYAMA T., YOSHIDA T., YUKITA M., ZHURAVLEVA I., BARTALESI T., ETTORI S., KOSARZYCKI R., LOVISARI L., ROSE T., SARKAR A., SUN M. and TAMHANE P.

Abstract (from CDS):

We report on a detailed spectroscopic study of the gas dynamics and hydrostatic mass bias of the galaxy cluster Abell 2029, utilizing high-resolution observations from XRISM Resolve. Abell 2029, known for its cool core and relaxed X-ray morphology, provides an excellent opportunity to investigate the influence of gas motions beyond the central region. Expanding upon prior studies that revealed low turbulence and bulk motions within the core, our analysis covers regions out to the scale radius $R_{2500}$ (670 kpc) based on three radial pointings extending from the cluster center toward the northern side. We obtain accurate measurements of bulk and turbulent velocities along the line of sight. The results indicate that non-thermal pressure accounts for no more than 2% of the total pressure at all radii, with a gradual decrease outward. The observed radial trend differs from many numerical simulations, which often predict an increase in non-thermal pressure fraction at larger radii. These findings suggest that deviations from hydrostatic equilibrium are small, leading to a hydrostatic mass bias of around 2% across the observed area.

Abstract Copyright: © The Author(s) 2025. Published by Oxford University Press on behalf of the Astronomical Society of Japan.

Journal keyword(s): cosmology: observations - galaxies: clusters: individual (Abell 2029) - intergalactic medium - X-rays: galaxies: clusters

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	ACO 2029	ClG	15 10 54.2	+05 44 23						~	1020	0

Query : 2025PASJ...77S.242X

Basic data :

ACO 2029 -- Cluster of Galaxies
Other object types:	`ClG (2014MNRAS,ACO,...)`, `X (2A,3A,...)`, `C?G (2014A&A,XCLASS)`, `gLe (2004ApJ)`
ICRS coord. (ep=J2000) :	`15 10 54.2 +05 44 23 (X-ray) [ 5000 5000 90 ] E 2022A&A...661A..38P`
FK4 coord. (ep=B1950 eq=1950) :	`15 08 25.4 +05 55 41 [ 5000 5000 90 ]`
Gal coord. (ep=J2000) :	`006.4596 +50.5488 [ 5000 5000 90 ]`
Radial velocity / Redshift / cz :	`V(km/s) 22281 [~] / z(spectroscopic) 0.0773 [~] / cz 23174 [~] (Opt) C 2016ApJ...819...63R`
Angular size (arcmin):	`6.0 6.0 ~ (Rad) D` `2015ApJ...813...77Y`

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`ACO 2029`	`FR 90`	`PSZRX G006.47+50.53`	`[B2017] 2088`
`2A 1508+062`	`1H 1508+060`	`RBS 1470`	`[F81] 311`
`3A 1509+058`	`H 1508+060`	`RXC J1510.9+0543`	`[RRB2014] RM J151100.1+054658.0`
`ACT-CL J1510.9+0544`	`1M 1514+068`	`RXGCC 593`	`[S85] 354`
`BAX 227.7447+05.7617`	`MCXC J1510.9+0543`	`1RXS J151056.3+054431`	`[SPD2011] 95`
`ClG 1508.5+0557`	`NSC J151055+054713`	`SRGA J151054.2+054422`	`[WHL2009] J151056.1+054441`
`2E 3385`	`PBC J1510.8+0545`	`SWIFT J1510.9+0547`	`[WHL2012] J151056.1+054441`
`2E 1508.4+0555`	`PLCKESZ G006.47+50.54`	`XCLASS 24004`
`1ES 1508+05.9`	`PSZ1 G006.45+50.56`	`XSS J15110+0541`
`EXSS 1508.4+0556`	`PSZ2 G006.49+50.56`	`[AWK2020] 6`

References (1020 between 1850 and 2026) (Total 1020)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : ACO 2029

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ACO 2029 2E 3385 RXC J1510.9+0543 1RXS J151056.3+054431

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