The infalling elliptical galaxy M89: The chemical composition of the AGN disturbed hot atmosphere
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F24%3A00135342" target="_blank" >RIV/00216224:14310/24:00135342 - isvavai.cz</a>
Result on the web
<a href="https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stae065/7513768?login=true" target="_blank" >https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stae065/7513768?login=true</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnras/stae065" target="_blank" >10.1093/mnras/stae065</a>
Alternative languages
Result language
angličtina
Original language name
The infalling elliptical galaxy M89: The chemical composition of the AGN disturbed hot atmosphere
Original language description
The chemical enrichment of X-ray-emitting hot atmospheres has hitherto been primarily studied in galaxy clusters. These studies revealed relative abundances of heavy elements that are remarkably similar to Solar. Here, we present measurements of the metal content of M89 (NGC 4552), an elliptical galaxy infalling into the Virgo cluster with a ∼10 kpc ram-pressure stripped X-ray tail. We take advantage of deep Chandra and XMM-Newton observations, and with particular attention to carefully modelling the spectra, we measure the O/Fe, Ne/Fe, Mg/Fe, Si/Fe and S/Fe ratios. Contrary to previous measurements in galaxy clusters, our results for the hot atmosphere of M89 suggest super-Solar abundance ratios with respect to iron (i.e. α/Fe > 1), similar to its stellar components. Our analysis of the active galactic nucleus (AGN) activity in this system indicates that the AGN-induced outflow could have facilitated the stripping of the original galactic atmosphere, which has been replaced with fresh stellar mass loss material with super-Solar α/Fe abundance ratios. Additionally, we report a new fitting bias in the RGS data of low-temperature plasma. The measured O/Fe ratios are >1σ lower in multi-temperature models than a single temperature fit, leading to discrepancies in the calculations of supernova fractions derived from the metal abundances.
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)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
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
528
Issue of the periodical within the volume
2
Country of publishing house
GB - UNITED KINGDOM
Number of pages
17
Pages from-to
1500-1516
UT code for WoS article
001153798300043
EID of the result in the Scopus database
2-s2.0-85184149872