Radio Emission of Nearby Early-type Galaxies in the Low and
Very Low Radio Luminosity Range

J 2023

Radio Emission of Nearby Early-type Galaxies in the Low and Very Low Radio Luminosity Range

WÓJTOWICZ, Anna Patrycja; Łukasz STAWARZ; C. C. CHEUNG; Norbert WERNER; Dominik RUDKA et. al.

Základní údaje

Originální název

Radio Emission of Nearby Early-type Galaxies in the Low and Very Low Radio Luminosity Range

Autoři

WÓJTOWICZ, Anna Patrycja (616 Polsko, garant, domácí); Łukasz STAWARZ; C. C. CHEUNG; Norbert WERNER (703 Slovensko, domácí) a Dominik RUDKA

Vydání

Astrophysical Journal, IOP Publishing Ltd, 2023, 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

URL URL

Impakt faktor

Impact factor: 4.800

Kód RIV

RIV/00216224:14310/23:00130411

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.3847/1538-4357/acb498

UT WoS

000940998600001

EID Scopus

2-s2.0-85149369333

Klíčová slova anglicky

Radio active galactic nuclei; Radio galaxies; Radio cores; Early-type galaxies; Radio jets

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 24. 3. 2023 11:34, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

We analyze radio continuum emission of early-type galaxies with dynamical measurements of central supermassive black hole (SMBH) masses and well-characterized large-scale environments, but regardless of the exact level of the nuclear activity. The 1.4 GHz radio fluxes collected with ∼arcmin resolution for 62 nearby targets (distances ≲153 Mpc) correspond to low and very low monochromatic luminosities of Lr ∼ 1035–1041 erg s−1. We quantify possible correlations between the radio properties with the main parameters of SMBHs, host galaxies, and hot gaseous halos, finding a general bimodality in the radio luminosity distribution, with the borderline between radio-bright and radio-dim populations at $\mathrm{log}{L}_{{\rm{r}}}/{L}_{\mathrm{Edd}}\simeq -8.5$. We analyze the far-infrared data for the targets, finding that all radio-bright and over a half of the radio-dim sources are overluminous in radio wavelengths with respect to the far-infrared–radio correlation. High-resolution radio maps reveal that the overwhelming majority of radio-dim sources is unresolved on the arcsecond scale, while the bulk of radio-bright sources display extended jets and lobes of low- and intermediate-power radio galaxies; these jets dominate the radio emission of radio-bright objects. Regarding the origin of the radio emission of radio-dim sources, we discuss two main possibilities. One possibility is the advection-dominated accretion flow model, in which the radio and nuclear X-ray radiative outputs at very low accretion rates are both dominated by unresolved jets. The other possibility is that the radio-dim sources, unlike the radio-bright ones, are characterized by low values of SMBH spins, so that their radio emission is not related to the jets, but instead is due to a combination of star-forming processes and previous nuclear outbursts.

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

Citovat

WÓJTOWICZ, Anna Patrycja; Łukasz STAWARZ; C. C. CHEUNG; Norbert WERNER a Dominik RUDKA. Radio Emission of Nearby Early-type Galaxies in the Low and Very Low Radio Luminosity Range. Astrophysical Journal. IOP Publishing Ltd, 2023, roč. 944, č. 2, s. 1-23. ISSN 0004-637X. Dostupné z: https://dx.doi.org/10.3847/1538-4357/acb498.

@article{2264457,
   author = {Wójtowicz, Anna Patrycja and Stawarz, Łukasz and Cheung, C. C. and Werner, Norbert and Rudka, Dominik},
   article_number = {2},
   doi = {http://dx.doi.org/10.3847/1538-4357/acb498},
   keywords = {Radio active galactic nuclei; Radio galaxies; Radio cores; Early-type galaxies; Radio jets},
   language = {eng},
   issn = {0004-637X},
   journal = {Astrophysical Journal},
   title = {Radio Emission of Nearby Early-type Galaxies in the Low and Very Low Radio Luminosity Range},
   url = {https://doi.org/10.3847/1538-4357/acb498},
   volume = {944},
   year = {2023}
}

TY  - JOUR
ID  - 2264457
AU  - Wójtowicz, Anna Patrycja - Stawarz, Łukasz - Cheung, C. C. - Werner, Norbert - Rudka, Dominik
PY  - 2023
TI  - Radio Emission of Nearby Early-type Galaxies in the Low and Very Low Radio Luminosity Range
JF  - Astrophysical Journal
VL  - 944
IS  - 2
SP  - 1-23
EP  - 1-23
PB  - IOP Publishing Ltd
SN  - 0004637X
KW  - Radio active galactic nuclei
KW  - Radio galaxies
KW  - Radio cores
KW  - Early-type galaxies
KW  - Radio jets
UR  - https://doi.org/10.3847/1538-4357/acb498
N2  - We analyze radio continuum emission of early-type galaxies with dynamical measurements of central supermassive black hole (SMBH) masses and well-characterized large-scale environments, but regardless of the exact level of the nuclear activity. The 1.4 GHz radio fluxes collected with ∼arcmin resolution for 62 nearby targets (distances ≲153 Mpc) correspond to low and very low monochromatic luminosities of Lr ∼ 1035–1041 erg s−1. We quantify possible correlations between the radio properties with the main parameters of SMBHs, host galaxies, and hot gaseous halos, finding a general bimodality in the radio luminosity distribution, with the borderline between radio-bright and radio-dim populations at $\mathrm{log}{L}_{{\rm{r}}}/{L}_{\mathrm{Edd}}\simeq -8.5$. We analyze the far-infrared data for the targets, finding that all radio-bright and over a half of the radio-dim sources are overluminous in radio wavelengths with respect to the far-infrared–radio correlation. High-resolution radio maps reveal that the overwhelming majority of radio-dim sources is unresolved on the arcsecond scale, while the bulk of radio-bright sources display extended jets and lobes of low- and intermediate-power radio galaxies; these jets dominate the radio emission of radio-bright objects. Regarding the origin of the radio emission of radio-dim sources, we discuss two main possibilities. One possibility is the advection-dominated accretion flow model, in which the radio and nuclear X-ray radiative outputs at very low accretion rates are both dominated by unresolved jets. The other possibility is that the radio-dim sources, unlike the radio-bright ones, are characterized by low values of SMBH spins, so that their radio emission is not related to the jets, but instead is due to a combination of star-forming processes and previous nuclear outbursts.
ER  -

WÓJTOWICZ, Anna Patrycja; Łukasz STAWARZ; C. C. CHEUNG; Norbert WERNER a Dominik RUDKA. Radio Emission of Nearby Early-type Galaxies in the Low and Very Low Radio Luminosity Range. \textit{Astrophysical Journal}. IOP Publishing Ltd, 2023, roč.~944, č.~2, s.~1-23. ISSN~0004-637X. Dostupné z: https://dx.doi.org/10.3847/1538-4357/acb498.

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