Hot gaseous atmospheres of rotating galaxies observed with
XMM-Newton

J 2020

Hot gaseous atmospheres of rotating galaxies observed with XMM-Newton

JURÁŇOVÁ, Anna; Norbert WERNER; P. E. J. NULSEN; Massimo GASPARI; K. LAKHCHAURA et al.

Základní údaje

Originální název

Hot gaseous atmospheres of rotating galaxies observed with XMM-Newton

Autoři

JURÁŇOVÁ, Anna; Norbert WERNER; P. E. J. NULSEN; Massimo GASPARI; K. LAKHCHAURA; R. E. A. CANNING; M. DONAHUE; Filip HROCH a G. M. VOIT

Vydání

Monthly Notices of the Royal Astronomical Society, Oxford, Oxford University Press, 2020, 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: 5.287

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/20:00117770

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

galaxies: active; galaxies: elliptical and lenticular; cD; X-rays: galaxies

Štítky

14312040, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 10. 11. 2022 11:46, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

X-ray emitting atmospheres of non-rotating early-type galaxies and their connection to central active galactic nuclei have been thoroughly studied over the years. However, in systems with significant angular momentum, processes of heating and cooling are likely to proceed differently. We present an analysis of the hot atmospheres of six lenticulars and a spiral galaxy to study the effects of angular momentum on the hot gas properties. We find an alignment between the hot gas and the stellar distribution, with the ellipticity of the X-ray emission generally lower than that of the optical stellar emission, consistent with theoretical predictions for rotationally supported hot atmospheres. The entropy profiles of NGC 4382 and the massive spiral galaxy NGC 1961 are significantly shallower than the entropy distribution in other galaxies, suggesting the presence of strong heating (via outflows or compressional) in the central regions of these systems. Finally, we investigate the thermal (in)stability of the hot atmospheres via criteria such as the TI- and C-ratio, and discuss the possibility that the discs of cold gas present in these objects have condensed out of the hot atmospheres.

Návaznosti

MUNI/I/0003/2020, interní kód MU

Název: MUNI Award in Science and Humanities 3 (Akronym: Space-Based High-Energy Astrophysics)

Investor: Masarykova univerzita, MUNI Award in Science and Humanities 3, MASH - MUNI Award in Science and Humanities

Citovat

JURÁŇOVÁ, Anna; Norbert WERNER; P. E. J. NULSEN; Massimo GASPARI; K. LAKHCHAURA; R. E. A. CANNING; M. DONAHUE; Filip HROCH a G. M. VOIT. Hot gaseous atmospheres of rotating galaxies observed with XMM-Newton. Monthly Notices of the Royal Astronomical Society. Oxford: Oxford University Press, 2020, roč. 499, č. 4, s. 5163-5174. ISSN 0035-8711. Dostupné z: https://doi.org/10.1093/mnras/staa3182.

@article{1728099,
   author = {Juráňová, Anna and Werner, Norbert and Nulsen, P. E. J. and Gaspari, Massimo and Lakhchaura, K. and Canning, R. E. A. and Donahue, M. and Hroch, Filip and Voit, G. M.},
   article_location = {Oxford},
   article_number = {4},
   doi = {https://doi.org/10.1093/mnras/staa3182},
   keywords = {galaxies: active; galaxies: elliptical and lenticular; cD; X-rays: galaxies},
   language = {eng},
   issn = {0035-8711},
   journal = {Monthly Notices of the Royal Astronomical Society},
   title = {Hot gaseous atmospheres of rotating galaxies observed with XMM-Newton},
   url = {https://doi.org/10.1093/mnras/staa3182},
   volume = {499},
   year = {2020}
}

TY  - JOUR
ID  - 1728099
AU  - Juráňová, Anna - Werner, Norbert - Nulsen, P. E. J. - Gaspari, Massimo - Lakhchaura, K. - Canning, R. E. A. - Donahue, M. - Hroch, Filip - Voit, G. M.
PY  - 2020
TI  - Hot gaseous atmospheres of rotating galaxies observed with XMM-Newton
JF  - Monthly Notices of the Royal Astronomical Society
VL  - 499
IS  - 4
SP  - 5163-5174
EP  - 5163-5174
PB  - Oxford University Press
SN  - 00358711
KW  - galaxies: active
KW  - galaxies: elliptical and lenticular
KW  - cD
KW  - X-rays: galaxies
UR  - https://doi.org/10.1093/mnras/staa3182
N2  - X-ray emitting atmospheres of non-rotating early-type galaxies and their connection to central active galactic nuclei have been thoroughly studied over the years. However, in systems with significant angular momentum, processes of heating and cooling are likely to proceed differently. We present an analysis of the hot atmospheres of six lenticulars and a spiral galaxy to study the effects of angular momentum on the hot gas properties. We find an alignment between the hot gas and the stellar distribution, with the ellipticity of the X-ray emission generally lower than that of the optical stellar emission, consistent with theoretical predictions for rotationally supported hot atmospheres. The entropy profiles of NGC 4382 and the massive spiral galaxy NGC 1961 are significantly shallower than the entropy distribution in other galaxies, suggesting the presence of strong heating (via outflows or compressional) in the central regions of these systems. Finally, we investigate the thermal (in)stability of the hot atmospheres via criteria such as the TI- and C-ratio, and discuss the possibility that the discs of cold gas present in these objects have condensed out of the hot atmospheres.
ER  -

JURÁŇOVÁ, Anna; Norbert WERNER; P. E. J. NULSEN; Massimo GASPARI; K. LAKHCHAURA; R. E. A. CANNING; M. DONAHUE; Filip HROCH a G. M. VOIT. Hot gaseous atmospheres of rotating galaxies observed with XMM-Newton. \textit{Monthly Notices of the Royal Astronomical Society}. Oxford: Oxford University Press, 2020, roč.~499, č.~4, s.~5163-5174. ISSN~0035-8711. Dostupné z: https://doi.org/10.1093/mnras/staa3182.

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