Tools
Tools
Baldi, RD, Williams, DRA, Beswick, RJ, McHardy, I, Dullo, BT, Knapen, JH, Zanisi, L, Argo, MK, Aalto, S, Alberdi, A, Baan, WA, Bendo, GJ, Fenech, DM, Green, DA, Klockner, H-R, Kording, E, Maccarone, TJ, Marcaide, JM, Mutie, I, Panessa, F , Perez-Torres, MA, Romero-Canizales, C, Saikia, DJ, Saikia, P, Shankar, F, Spencer, RE, Stevens, IR, Uttley, P, Brinks, E, Corbel, S, Marti-Vidal, I, Mundell, CG, Pahari, M and Ward, MJ (2021) LeMMINGs III. The e-MERLIN legacy survey of the Palomar sample: exploring the origin of nuclear radio emission in active and inactive galaxies through the [O III] - radio connection. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 508 (2). pp. 2019-2038. ISSN 0035-8711
|
Text
LeMMINGs III the e-MERLIN legacy survey of the Palomar sample.pdf - Published Version Download (1MB) | Preview |
Abstract
What determines the nuclear radio emission in local galaxies? To address this question, we combine optical [O III] line emission, robust black hole (BH) mass estimates, and high-resolution e-MERLIN 1.5-GHz data, from the LeMMINGs survey, of a statistically complete sample of 280 nearby optically active (LINER and Seyfert) and inactive [H II and absorption line galaxies (ALGs)] galaxies. Using [O III] luminosity (L[OIII]) as a proxy for the accretion power, local galaxies follow distinct sequences in the optical–radio planes of BH activity, which suggest different origins of the nuclear radio emission for the optical classes. The 1.5-GHz radio luminosity of their parsec-scale cores (Lcore) is found to scale with BH mass (MBH) and [O III] luminosity. Below MBH ∼ 106.5 M⊙, stellar processes from non-jetted H II galaxies dominate with Lcore∝M0.61±0.33BH and Lcore∝L0.79±0.30[OIII]. Above MBH ∼ 106.5 M⊙, accretion-driven processes dominate with Lcore∝M1.5−1.65BH and Lcore∝L0.99−1.31[OIII] for active galaxies: radio-quiet/loud LINERs, Seyferts, and jetted H II galaxies always display (although low) signatures of radio-emitting BH activity, with L1.5GHz≳1019.8 W Hz−1 and MBH ≳ 107 M⊙, on a broad range of Eddington-scaled accretion rates (m˙). Radio-quiet and radio-loud LINERs are powered by low-m˙ discs launching sub-relativistic and relativistic jets, respectively. Low-power slow jets and disc/corona winds from moderately high to high-m˙ discs account for the compact and edge-brightened jets of Seyferts, respectively. Jetted H II galaxies may host weakly active BHs. Fuel-starved BHs and recurrent activity account for ALG properties. In conclusion, specific accretion–ejection states of active BHs determine the radio production and the optical classification of local active galaxies.
| Item Type: | Article |
|---|---|
| Additional Information: | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2021 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
| Uncontrolled Keywords: | ADVECTION-DOMINATED ACCRETION; Astronomy & Astrophysics; BLACK-HOLE MASS; DWARF SEYFERT NUCLEI; GALACTIC NUCLEI; galaxies: active; galaxies: jets; galaxies: nuclei; galaxies: star formation; HOST GALAXY/AGN CONNECTION; JET PRODUCTION EFFICIENCY; LOUD/RADIO-QUIET DICHOTOMY; Physical Sciences; radio continuum: galaxies; Science & Technology; STAR-FORMING GALAXIES; VLA OBSERVATIONS; X-RAY BINARIES; Science & Technology; Physical Sciences; Astronomy & Astrophysics; galaxies: active; galaxies: jets; galaxies: nuclei; galaxies: star formation; radio continuum: galaxies; BLACK-HOLE MASS; ADVECTION-DOMINATED ACCRETION; X-RAY BINARIES; HOST GALAXY/AGN CONNECTION; DWARF SEYFERT NUCLEI; LOUD/RADIO-QUIET DICHOTOMY; JET PRODUCTION EFFICIENCY; STAR-FORMING GALAXIES; GALACTIC NUCLEI; VLA OBSERVATIONS; Science & Technology; Physical Sciences; Astronomy & Astrophysics; galaxies: active; galaxies: jets; galaxies: nuclei; galaxies: star formation; radio continuum: galaxies; BLACK-HOLE MASS; ADVECTION-DOMINATED ACCRETION; X-RAY BINARIES; HOST GALAXY/AGN CONNECTION; DWARF SEYFERT NUCLEI; LOUD/RADIO-QUIET DICHOTOMY; JET PRODUCTION EFFICIENCY; STAR-FORMING GALAXIES; GALACTIC NUCLEI; VLA OBSERVATIONS; astro-ph.GA; astro-ph.GA; astro-ph.HE; 0201 Astronomical and Space Sciences; Astronomy & Astrophysics |
| Subjects: | Q Science > QB Astronomy |
| Divisions: | Astrophysics Research Institute |
| Publisher: | OXFORD UNIV PRESS |
| SWORD Depositor: | A Symplectic |
| Date Deposited: | 01 Nov 2022 10:18 |
| Last Modified: | 01 Nov 2022 10:30 |
| DOI or ID number: | 10.1093/mnras/stab2613 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/17985 |
 |
View Item |