Chandra measurements of gas homogeneity and turbulence a
intermediate radii in the Perseus Cluster

J 2023

Chandra measurements of gas homogeneity and turbulence a intermediate radii in the Perseus Cluster

DE VRIES, Martijn; Adam B. MANTZ; Steven W. ALLEN; R. Glenn MORRIS; Irina ZHURAVLEVA et. al.

Základní údaje

Originální název

Chandra measurements of gas homogeneity and turbulence a intermediate radii in the Perseus Cluster

Autoři

DE VRIES, Martijn (garant); Adam B. MANTZ; Steven W. ALLEN; R. Glenn MORRIS; Irina ZHURAVLEVA; Rebecca E. A. CANNING; Steven R. EHLERT; Anna OGORZALEK; Aurora SIMIONESCU a Norbert WERNER (703 Slovensko, domácí)

Vydání

Monthly Notices of the Royal Astronomical Society, Oxford University Press, 2023, 0035-8711

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL URL

Impakt faktor

Impact factor: 4.800

Kód RIV

RIV/00216224:14310/23:00134058

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1093/mnras/stac3285

UT WoS

000898988700027

EID Scopus

2-s2.0-85152147078

Klíčová slova anglicky

turbulence; galaxies: clusters: intracluster medium; galaxies: clusters: individual (Perseus)

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 15. 2. 2024 11:59, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

We present a Chandra study of surface brightness fluctuations in the diffuse intracluster medium of the Perseus Cluster. Our study utilizes deep, archival imaging of the cluster core as well as a new mosaic of 29 short 5-ks observations extending in eight different directions out to radii of r500∼2.2r2500⁠. Under the assumption that the distribution of densities at a given radius is log-normally distributed, two important quantities can be derived from the width of the log-normal density distribution on a given spatial scale: the density bias, that is equal to the square root of the clumping factor C; and the one-component turbulent velocity, vk,1D. We forward-model all contributions to the measured surface brightness, including astrophysical and particle background components, and account for the Poisson nature of the measured signal. Measuring the distribution of surface brightness fluctuations in 1 arcmin2 regions, spanning the radial range 0.3−2.2r2500 (⁠7.8−57.3 arcmin), we find a small to moderate average density bias of around 3 per cent at radii below 1.6r2500⁠. We also infer an average turbulent velocity at these radii of V1D < 400 km s−1. Direct confirmation of our results on turbulent velocities inferred from surface brightness fluctuations should be possible using the X-ray calorimeter spectrometers to be flown aboard the XRISM and Athena observatories.

Návaznosti

GX21-13491X, projekt VaV

Název: Zkoumání žhavého vesmíru a porozumění kosmické zpětné vazbě (Akronym: EHU)

Investor: Grantová agentura ČR, Exploring the Hot Universe and Understanding Comic Feedback

Citovat

DE VRIES, Martijn; Adam B. MANTZ; Steven W. ALLEN; R. Glenn MORRIS; Irina ZHURAVLEVA; Rebecca E. A. CANNING; Steven R. EHLERT; Anna OGORZALEK; Aurora SIMIONESCU a Norbert WERNER. Chandra measurements of gas homogeneity and turbulence a intermediate radii in the Perseus Cluster. Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2023, roč. 518, č. 2, s. 2954-2970. ISSN 0035-8711. Dostupné z: https://doi.org/10.1093/mnras/stac3285.

@article{2253502,
   author = {de Vries, Martijn and Mantz, Adam B. and Allen, Steven W. and Morris, R. Glenn and Zhuravleva, Irina and Canning, Rebecca E. A. and Ehlert, Steven R. and Ogorzalek, Anna and Simionescu, Aurora and Werner, Norbert},
   article_number = {2},
   doi = {https://doi.org/10.1093/mnras/stac3285},
   keywords = {turbulence; galaxies: clusters: intracluster medium; galaxies: clusters: individual (Perseus)},
   language = {eng},
   issn = {0035-8711},
   journal = {Monthly Notices of the Royal Astronomical Society},
   title = {Chandra measurements of gas homogeneity and turbulence a intermediate radii in the Perseus Cluster},
   url = {https://doi.org/10.1093/mnras/stac3285},
   volume = {518},
   year = {2023}
}

TY  - JOUR
ID  - 2253502
AU  - de Vries, Martijn - Mantz, Adam B. - Allen, Steven W. - Morris, R. Glenn - Zhuravleva, Irina - Canning, Rebecca E. A. - Ehlert, Steven R. - Ogorzalek, Anna - Simionescu, Aurora - Werner, Norbert
PY  - 2023
TI  - Chandra measurements of gas homogeneity and turbulence a intermediate radii in the Perseus Cluster
JF  - Monthly Notices of the Royal Astronomical Society
VL  - 518
IS  - 2
SP  - 2954-2970
EP  - 2954-2970
PB  - Oxford University Press
SN  - 00358711
KW  - turbulence
KW  - galaxies: clusters: intracluster medium
KW  - galaxies: clusters: individual (Perseus)
UR  - https://doi.org/10.1093/mnras/stac3285
N2  - We present a Chandra study of surface brightness fluctuations in the diffuse intracluster medium of the Perseus Cluster. Our study utilizes deep, archival imaging of the cluster core as well as a new mosaic of 29 short 5-ks observations extending in eight different directions out to radii of r500∼2.2r2500⁠. Under the assumption that the distribution of densities at a given radius is log-normally distributed, two important quantities can be derived from the width of the log-normal density distribution on a given spatial scale: the density bias, that is equal to the square root of the clumping factor C; and the one-component turbulent velocity, vk,1D. We forward-model all contributions to the measured surface brightness, including astrophysical and particle background components, and account for the Poisson nature of the measured signal. Measuring the distribution of surface brightness fluctuations in 1 arcmin2 regions, spanning the radial range 0.3−2.2r2500 (⁠7.8−57.3 arcmin), we find a small to moderate average density bias of around 3 per cent at radii below 1.6r2500⁠. We also infer an average turbulent velocity at these radii of V1D < 400 km s−1. Direct confirmation of our results on turbulent velocities inferred from surface brightness fluctuations should be possible using the X-ray calorimeter spectrometers to be flown aboard the XRISM and Athena observatories.
ER  -

DE VRIES, Martijn; Adam B. MANTZ; Steven W. ALLEN; R. Glenn MORRIS; Irina ZHURAVLEVA; Rebecca E. A. CANNING; Steven R. EHLERT; Anna OGORZALEK; Aurora SIMIONESCU a Norbert WERNER. Chandra measurements of gas homogeneity and turbulence a intermediate radii in the Perseus Cluster. \textit{Monthly Notices of the Royal Astronomical Society}. Oxford University Press, 2023, roč.~518, č.~2, s.~2954-2970. ISSN~0035-8711. Dostupné z: https://doi.org/10.1093/mnras/stac3285.

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