Optically active and optically inactive radio galaxies as
sub-populations of the main galaxy sample of the SDSS

J 2025

Optically active and optically inactive radio galaxies as sub-populations of the main galaxy sample of the SDSS

STASINSKA, G.; N. VALE ASARI; Anna Patrycja WÓJTOWICZ a D. KOZIEL-WIERZBOWSKA

Základní údaje

Originální název

Optically active and optically inactive radio galaxies as sub-populations of the main galaxy sample of the SDSS

Autoři

STASINSKA, G.; N. VALE ASARI; Anna Patrycja WÓJTOWICZ a D. KOZIEL-WIERZBOWSKA

Vydání

Astronomy and Astrophysics, EDP Sciences, 2025, 0004-6361

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Francie

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 5.800 v roce 2024

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/25:00144285

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

galaxies: active; galaxies: jets; galaxies: Seyfert

Štítky

14312040, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 5. 3. 2025 09:11, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Aims: We use the ROGUE I and II catalogues of radio sources associated with optical galaxies to revisit the characterization of radio active galactic nuclei (AGNs) in terms of radio luminosities and properties derived from the analyses of the optical spectra of their associated galaxies. Methods: We propose a physically based classification of radio galaxies into 'optically inactive' and 'optically active' (OPARGs and OPIRGs). In our sample, there are 14 082 OPIRGs and 2721 OPARGs. After correcting for the Malmquist bias, we compared the global properties of our two classes of radio galaxies and put them in the context of the global population of galaxies. To compare the Eddington ratios of OPARGs with those of Seyferts, we devised a method to obtain the bolometric luminosities of these objects, taking into account the contribution of young stars to the observed line emission. We provide formulae to derive bolometric luminosities from the [O III] luminosity. Results: We find that the distributions of radio luminosities of OPARGs and OPIRGs are undistinguishable. On average, the black hole masses and stellar masses in OPIRGs are larger than in OPARGs. OPARGs show signs of some recent star formation. Plotting the OPARGs in the BPT diagram and comparing their distribution with that of the remaining galaxies, we find that there is a sub-family of very high excitation OPARGs at the top of the AGN wing. This group is slightly displaced towards the left of the rest of the AGN galaxies, suggesting a stronger ionizing radiation field with respect to the gas pressure. Conclusions: Only very-high excitation radio galaxies (VHERGs) have Eddington ratios higher than 10(-2), which are canonically considered as the lower limit for the occurrence of radiative efficient accretion. If our estimates of the bolometric luminosities are correct, this means than only a small proportion of mainstream HERGs are indeed radiatively efficient.

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

Citovat

STASINSKA, G.; N. VALE ASARI; Anna Patrycja WÓJTOWICZ a D. KOZIEL-WIERZBOWSKA. Optically active and optically inactive radio galaxies as sub-populations of the main galaxy sample of the SDSS. Astronomy and Astrophysics. EDP Sciences, 2025, roč. 693, January, s. 1-19. ISSN 0004-6361. Dostupné z: https://doi.org/10.1051/0004-6361/202452022.

@article{2481766,
   author = {Stasinska, G. and Vale Asari, N. and Wójtowicz, Anna Patrycja and KozielandWierzbowska, D.},
   article_number = {January},
   doi = {https://doi.org/10.1051/0004-6361/202452022},
   keywords = {galaxies: active; galaxies: jets; galaxies: Seyfert},
   language = {eng},
   issn = {0004-6361},
   journal = {Astronomy and Astrophysics},
   title = {Optically active and optically inactive radio galaxies as sub-populations of the main galaxy sample of the SDSS},
   url = {https://doi.org/10.1051/0004-6361/202452022},
   volume = {693},
   year = {2025}
}

TY  - JOUR
ID  - 2481766
AU  - Stasinska, G. - Vale Asari, N. - Wójtowicz, Anna Patrycja - Koziel-Wierzbowska, D.
PY  - 2025
TI  - Optically active and optically inactive radio galaxies as sub-populations of the main galaxy sample of the SDSS
JF  - Astronomy and Astrophysics
VL  - 693
IS  - January
SP  - 1-19
EP  - 1-19
PB  - EDP Sciences
SN  - 00046361
KW  - galaxies: active
KW  - galaxies: jets
KW  - galaxies: Seyfert
UR  - https://doi.org/10.1051/0004-6361/202452022
N2  - Aims: We use the ROGUE I and II catalogues of radio sources associated with optical galaxies to revisit the characterization of radio active galactic nuclei (AGNs) in terms of radio luminosities and properties derived from the analyses of the optical spectra of their associated galaxies. Methods: We propose a physically based classification of radio galaxies into 'optically inactive' and 'optically active' (OPARGs and OPIRGs). In our sample, there are 14 082 OPIRGs and 2721 OPARGs. After correcting for the Malmquist bias, we compared the global properties of our two classes of radio galaxies and put them in the context of the global population of galaxies. To compare the Eddington ratios of OPARGs with those of Seyferts, we devised a method to obtain the bolometric luminosities of these objects, taking into account the contribution of young stars to the observed line emission. We provide formulae to derive bolometric luminosities from the [O III] luminosity. Results: We find that the distributions of radio luminosities of OPARGs and OPIRGs are undistinguishable. On average, the black hole masses and stellar masses in OPIRGs are larger than in OPARGs. OPARGs show signs of some recent star formation. Plotting the OPARGs in the BPT diagram and comparing their distribution with that of the remaining galaxies, we find that there is a sub-family of very high excitation OPARGs at the top of the AGN wing. This group is slightly displaced towards the left of the rest of the AGN galaxies, suggesting a stronger ionizing radiation field with respect to the gas pressure. Conclusions: Only very-high excitation radio galaxies (VHERGs) have Eddington ratios higher than 10(-2), which are canonically considered as the lower limit for the occurrence of radiative efficient accretion. If our estimates of the bolometric luminosities are correct, this means than only a small proportion of mainstream HERGs are indeed radiatively efficient.
ER  -

STASINSKA, G.; N. VALE ASARI; Anna Patrycja WÓJTOWICZ a D. KOZIEL-WIERZBOWSKA. Optically active and optically inactive radio galaxies as sub-populations of the main galaxy sample of the SDSS. \textit{Astronomy and Astrophysics}. EDP Sciences, 2025, roč.~693, January, s.~1-19. ISSN~0004-6361. Dostupné z: https://doi.org/10.1051/0004-6361/202452022.

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