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LeMMINGs. Multiwave...
LeMMINGs. Multiwavelength constraints on the co-existence of nuclear star clusters and AGN in nucleated galaxies
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- Dullo, B. T. (författare)
- Universidad Complutense de Madrid,Complutense University,Embry-Riddle Aeronautical University
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- Knapen, J. H. (författare)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Baldi, R. D. (författare)
- Istituto di Radioastronomia,University of Southampton
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visa fler...
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- Williams, D. R.A. (författare)
- University of Manchester
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- Beswick, R. J. (författare)
- University of Manchester
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- McHardy, I. M. (författare)
- University of Southampton
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- Green, D. A. (författare)
- University Of Cambridge
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- de Paz, A. Gil (författare)
- Universidad Complutense de Madrid,Complutense University
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- Aalto, Susanne, 1964 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Alberdi, Antxon (författare)
- Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
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- Argo, M. K. (författare)
- University of Central Lancashire
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- Gallagher III, J. S. (författare)
- University of Wisconsin Madison
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- Klockner, H. R. (författare)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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Marcaide, J.M. (författare)
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- Mutie, I. (författare)
- Technical University of Kenya,University of Manchester
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- Saikia, D. J. (författare)
- Inter-University Centre for Astronomy and Astrophysics (IUCAA)
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- Saikia, P. (författare)
- New York University Abu Dhabi
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- Stevens, I. R. (författare)
- University of Birmingham
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- Torrejón, S. (författare)
- Universidad Complutense de Madrid,Complutense University
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(creator_code:org_t)
- 2024
- 2024
- Engelska.
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Ingår i: Monthly Notices of the Royal Astronomical Society. - 0035-8711 .- 1365-2966. ; 532:4, s. 4729-4751
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https://research.cha... (primary) (free)
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The relation between nuclear star clusters (NSCs) and the growth of the central supermassive black holes (SMBHs), as well as their connection to the properties of the host galaxies, is crucial for understanding the evolution of galaxies. Recent observations have revealed that about 10 per cent of nucleated galaxies host hybrid nuclei, consisting of both NSCs and accreting SMBHs that power active galactic nuclei (AGNs). Motivated by the potential of the recently published multiwavelength data sets from LeMMINGs survey, here we present the most thorough investigation to date of the incidence of hybrid nuclei in a large sample of 100 nearby nucleated galaxies (10 E, 25 S0, 63 S, and 2 Irr), covering a wide range in stellar mass (M∗,gal ∼ 108.7 - 1012 M☉). We identify the nuclei and derive their properties by performing detailed 1D and 2D multicomponent decompositions of the optical and near-infrared HST stellar light distributions of the galaxies using Sérsic and core-Sérsic models. Our AGN diagnostics are based on homogeneously derived nuclear 1.5 GHz e-MERLIN radio, Chandra X-ray (0.3–10 keV), and optical emission-line data. We determine the nucleation fraction (fnuc) as the relative incidence of nuclei across the LeMMINGs HST sample and find fnuc = 100/149 (= 67 ± 7 per cent), confirming previous work, with a peak value of 49/56 (= 88 ± 13 per cent) at bulge masses M∗,bulge ∼ 109.4 - 1010.8 M☉. We identify 30 nucleated LeMMINGs galaxies that are optically active, radio-detected, and X-ray luminous (LX > 1039 erg s-1). This indicates that our nucleated sample has a lower limit ∼ 30 per cent occupancy of hybrid nuclei, which is a function of M∗,bulge and M∗,gal. We find that hybrid nuclei have a number density of (1.5 ± 0.4) × 10-5 Mpc-3, are more common at M∗,gal ∼ 1010.6 - 1011.8 M☉ and occur, at least, three times more frequently than previously reported.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Nyckelord
- cD
- galaxies: photometry
- galaxies: nuclei
- galaxies: elliptical and lenticular
- galaxies: fundamental parameters
- radio continuum: galaxies
- galaxies: structure
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Dullo, B. T.
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Knapen, J. H.
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Baldi, R. D.
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Williams, D. R.A ...
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Beswick, R. J.
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McHardy, I. M.
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visa fler...
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Green, D. A.
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de Paz, A. Gil
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Aalto, Susanne, ...
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Alberdi, Antxon
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Argo, M. K.
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Gallagher III, J ...
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Klockner, H. R.
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Marcaide, J.M.
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Mutie, I.
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Saikia, D. J.
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Saikia, P.
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Stevens, I. R.
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Torrejón, S.
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Subatomär fysik
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Astronomi astrof ...
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- NATURVETENSKAP
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