Tyck till om SwePub Sök
här!
Search: WFRF:(McHardy I.)
> Chalmers University of Technology
> (2022) >
LeMMINGs - IV. The ...
LeMMINGs - IV. The X-ray properties of a statistically complete sample of the nuclei in active and inactive galaxies from the Palomar sample
-
- Williams, D. R.A. (author)
- University of Southampton,University of Manchester,University Of Oxford
-
- Pahari, M. (author)
- University of Southampton,Indian Institute of Technology Hyderabad
-
- Baldi, R. D. (author)
- Istituto di Radioastronomia,University of Southampton
-
show more...
-
- McHardy, I. M. (author)
- University of Southampton
-
- Mathur, S. (author)
- Ohio State University,Eureka Scientific
-
- Beswick, R. J. (author)
- University of Manchester
-
- Beri, A. (author)
- University of Southampton,Indian Institute of Science
-
- Boorman, P. (author)
- Czech Academy of Sciences
-
- Aalto, Susanne, 1964 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Alberdi, Antxon (author)
- Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
-
- Argo, M. K. (author)
- University of Central Lancashire
-
- Dullo, B. T. (author)
- Universidad Complutense de Madrid,Complutense University
-
- Fenech, D. M. (author)
- University Of Cambridge
-
- Green, D. A. (author)
- University Of Cambridge
-
- Knapen, J. H. (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
-
- Marti-Vidal, Ivan, 1980 (author)
- Universitat de Valencia
-
- Moldon, J. (author)
- Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA),University of Manchester
-
- Mundell, C. G. (author)
- University of Bath
-
- Muxlow, T. (author)
- University of Manchester
-
- Panessa, F. (author)
- Istituto nazionale di astrofisica (INAF)
-
- Pérez-Torres, M.A. (author)
- Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
-
- Saikia, P. (author)
- New York University Abu Dhabi
-
- Shankar, F. (author)
- University of Southampton
-
- Stevens, I. R. (author)
- University of Birmingham
-
- Uttley, P. (author)
- Anton Pannekoek Institute for Astronomy
-
show less...
-
(creator_code:org_t)
- 2021-11-17
- 2022
- English.
-
In: Monthly Notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 510:4, s. 4909-4928
- Related links:
-
https://www.research...
-
show more...
-
https://doi.org/10.1...
-
https://research.cha...
-
show less...
Abstract
Subject headings
Close
- All 280 of the statistically complete Palomar sample of nearby ( < 120 Mpc) galaxies δ> 20 ◦have been observed at 1.5 GHz as part of the LeMMINGs e -MERLIN le gac y surv e y. Here, we present Chandr a X-ray observations of the nuclei of 213 of these galaxies, including a statistically complete sub-set of 113 galaxies in the declination range 40 ◦<δ< 65 ◦. We observed galaxies of all optical spectral types, including 'active' galaxies [e.g. low-ionization nuclear emission line regions (LINERs) and Seyferts] and 'inactive' galaxies like H II galaxies and absorption line galaxies (ALG). The X-ray flux limit of our surv e y is 1.65 ×10 -14 erg s -1 cm -2 (0.3 -10 keV). We detect X-ray emission coincident within 2 arcsec of the nucleus in 150/213 galaxies, including 13/14 Seyferts, 68/77 LINERs, 13/22 ALGs and 56/100 H II galaxies, but cannot completely rule out contamination from non-AGN processes in sources with nuclear luminosities ≲ 10 39 erg s -1 . We construct an X-ray Luminosity function (XLF) and find that the local galaxy XLF, when including all active galactic nucleus (AGN) types, can be represented as a single power law of slope -0.54 ±0.06. The Eddington ratio of the Seyferts is usually 2 -4 decades higher than that of the LINERs, ALGs, and H II galaxies, which are mostly detected with Eddington ratios ≲ 10 -3 . Using [ O III ] line measurements and black hole masses from the literature, we show that LINERs, H II galaxies and ALGs follow similar correlations to low luminosities, suggesting that some 'inactive' galaxies may harbour AGN.
Subject headings
- 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)
Keyword
- X-rays: Galaxies
- Galaxies: Active
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
-
Williams, D. R.A ...
-
Pahari, M.
-
Baldi, R. D.
-
McHardy, I. M.
-
Mathur, S.
-
Beswick, R. J.
-
show more...
-
Beri, A.
-
Boorman, P.
-
Aalto, Susanne, ...
-
Alberdi, Antxon
-
Argo, M. K.
-
Dullo, B. T.
-
Fenech, D. M.
-
Green, D. A.
-
Knapen, J. H.
-
Marti-Vidal, Iva ...
-
Moldon, J.
-
Mundell, C. G.
-
Muxlow, T.
-
Panessa, F.
-
Pérez-Torres, M. ...
-
Saikia, P.
-
Shankar, F.
-
Stevens, I. R.
-
Uttley, P.
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Subatomic Physic ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Astronomy Astrop ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Atom and Molecul ...
- Articles in the publication
-
Monthly Notices ...
- By the university
-
Chalmers University of Technology