J 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

Odkazy

Impakt faktor

Impact factor: 4.900

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/22:00119742

Organizační jednotka

Přírodovědecká fakulta

EID Scopus

Klíčová slova anglicky

Elliptical galaxies; Interstellar medium; Active galactic nuclei; Infrared astronomy; Optical astronomy; Radio astronomy; X-ray astronomy

Štítky

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
Název: Zkoumání žhavého vesmíru a porozumění kosmické zpětné vazbě (Akronym: EHU)
Investor: Grantová agentura ČR, Exploring the Hot Universe and Understanding Comic Feedback
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