2022
Probing Multiphase Gas in Local Massive Elliptical Galaxies via Multiwavelength Observations
TEMI, P.; M. GASPARI; F. BRIGHENTI; Norbert WERNER; Romana GROSSOVÁ et al.Základní údaje
Originální název
Probing Multiphase Gas in Local Massive Elliptical Galaxies via Multiwavelength Observations
Autoři
TEMI, P.; M. GASPARI; F. BRIGHENTI; Norbert WERNER; Romana GROSSOVÁ; M. GITTI; M. SUN; A. AMBLARD a A. SIMIONESCU
Vydání
The Astrophysical Journal, IOP Publishing, 2022, 0004-637X
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
Impakt faktor
Impact factor: 4.900
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/22:00119742
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
Elliptical galaxies; Interstellar medium; Active galactic nuclei; Infrared astronomy; Optical astronomy; Radio astronomy; X-ray astronomy
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 10. 11. 2022 11:12, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
We investigate the cold and warm gas content, kinematics, and spatial distribution of six local massive elliptical galaxies to probe the origin of the multiphase gas in their atmospheres. We report new observations, including Stratospheric Observatory for Infrared Astronomy [C ii], Atacama Large Millimeter/submillimeter Array CO, Multi Unit Spectroscopic Explorer (MUSE) Hα+[N ii], and Very Large Array (VLA) radio observations. These are complemented by a large suite of multiwavelength archival data sets, including thermodynamical properties of the hot gas and radio jets, which are leveraged to investigate the role of active galactic nucleus (AGN) feeding/feedback in regulating the multiphase gas content. Our galactic sample shows a significant diversity in cool gas content, spanning filamentary and rotating structures. In our noncentral galaxies, the distribution of such gas is often concentrated, at variance with the more extended features observed in central galaxies. Misalignment between the multiphase gas and stars suggest that stellar mass loss is not the primary driver. A fraction of the cool gas might be acquired via galaxy interactions, but we do not find quantitative evidence of mergers in most of our systems. Instead, key evidence supports the origin via condensation out of the diffuse halo. Comparing with chaotic cold accretion (CCA) simulations, we find that our cool gas-free galaxies are likely in the overheated phase of the self-regulated AGN cycle, while for our galaxies with cool gas, the k-plot and AGN power correlation corroborate the phase of CCA feeding in which the condensation rain is triggering more vigorous AGN heating. The related C-ratio further shows that central/noncentral galaxies are expected to generate an extended/inner rain, consistent with our sample.
Návaznosti
| GX21-13491X, projekt VaV |
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| MUNI/I/0003/2020, interní kód MU |
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