A non-uniform metal distribution in the ram-pressure-stripped circumgalactic medium of M86
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F25%3A00144447" target="_blank" >RIV/00216224:14310/25:00144447 - isvavai.cz</a>
Result on the web
<a href="https://academic.oup.com/mnras/article/542/3/2323/8238074" target="_blank" >https://academic.oup.com/mnras/article/542/3/2323/8238074</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnras/staf1364" target="_blank" >10.1093/mnras/staf1364</a>
Alternative languages
Result language
angličtina
Original language name
A non-uniform metal distribution in the ram-pressure-stripped circumgalactic medium of M86
Original language description
The chemical enrichment of X-ray-emitting hot haloes has primarily been studied in closed-box galaxy clusters. Investigating the metal content of lower mass, open systems can serve as a valuable tracer for understanding their dynamical history and the extent of chemical enrichment mechanisms in the Universe. In this context, we use an 85.6 ks XMM-Newton observation to study the spatial distribution of the abundance ratios of Mg, Si, and S with respect to Fe in the hot gas of the ram-pressure-stripped M86, which has undergone morphological transformations. We report that the chemical composition in the M86 galaxy core is more similar to the rest of the hot gaseous content of the Universe than to its stellar population. This result indicates that even supersonic ram pressure is insufficient to strip the inner part of a galaxy of its hot atmosphere. Comparison with other galaxies undergoing ram-pressure stripping suggests that stripping the 'primordial' atmosphere of a galaxy requires a combination of ram-pressure stripping and strong radio-mechanical active galactic nucleus activity. The X-ray emission structures within M86, the plume and the tail, are found to be relatively isothermal. We observe that the Mg/Fe ratio in the plume is 3.3sigma higher than in the M86 galaxy core and is consistent with that in the M86 group outskirts and the Virgo ICM, suggesting that the plume might originate from the low-entropy outer gas rather than from the recent ram-pressure stripping of the dense galaxy core.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/GX21-13491X" target="_blank" >GX21-13491X: Exploring the Hot Universe and Understanding Cosmic Feedback</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Monthly Notices of the Royal Astronomical Society
ISSN
0035-8711
e-ISSN
1365-2966
Volume of the periodical
542
Issue of the periodical within the volume
3
Country of publishing house
GB - UNITED KINGDOM
Number of pages
22
Pages from-to
2323-2344
UT code for WoS article
001562518000001
EID of the result in the Scopus database
2-s2.0-105015142165