Chandra X-ray's study of LeMMINGs galaxies Virtual Observatory Resource

Authors
  1. Williams D.R.A.
  2. Pahari M.
  3. Baldi R.D.
  4. Mchardy I.M.
  5. Mathur S.,Beswick R.J.
  6. Beri A.
  7. Boorman P.
  8. Aalto S.
  9. Alberdi A.
  10. Argo M.K.,Dullo B.T.
  11. Fenech D.M.
  12. Green D.A.
  13. Knapen J.H.
  14. Marti-Vidal I.,Moldon J.
  15. Mundell C.G.
  16. Muxlow T.W.B.
  17. Panessa F.
  18. Perez-Torres M.,Saikia P.
  19. Shankar F.
  20. Stevens I.R.
  21. Uttley P.
  22. Published by
    CDS
Abstract

All 280 of the statistically complete Palomar sample of nearby (< 120 Mpc) galaxies {delta} > 20{deg} have been observed at 1.5 GHz as part of the LeMMINGs e-MERLIN legacy survey. Here, we present Chandra 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{deg} < {delta} < 65{deg}. 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 survey is 1.65*10^-14^ erg/s/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. 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.

Keywords
  1. galaxies
  2. active-galactic-nuclei
  3. infrared-sources
  4. radio-galaxies
  5. seyfert-galaxies
  6. black-holes
  7. visible-astronomy
  8. x-ray-sources
  9. astrometry
  10. spectroscopy
  11. photometry
Bibliographic source Bibcode
2022MNRAS.510.4909W
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/510/4909
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/510/4909

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/510/4909
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/510/4909
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/510/4909
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/510/4909/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/510/4909/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/510/4909/table1?

History

2025-01-07T13:47:18Z
Resource record created
2025-01-07T12:49:42Z
Updated
2025-01-07T13:47:18Z
Created

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr