2022MNRAS.512.5755I -
Mon. Not. R. Astron. Soc., 512, 5755-5770 (2022/June-1)
CHANG-ES - XXVII. A radio/X-ray catalogue of compact sources in and around edge-on galaxies.
IRWIN J., DYER J., DRAKE L., WANG Q.D., STIL J., STEIN Y., ENGLISH J. and WIEGERT T.
Abstract (from CDS):
We present catalogues of discrete, compact radio sources in and around the discs of 35 edge-on galaxies in the Continuum Halos in Nearby Galaxies - an EVLA Survey. The sources were extracted using the PYBDSF program at both 1.6 GHz (L band) and 6.0 GHz (C band) from matching resolution (≃3 arcsec) data. We also present catalogues of X-ray sources from Chandra data sets for 27 of the galaxies. The sources at the two radio frequency bands were positionally cross-correlated with each other, and the result cross-correlated with the X-ray sources. All catalogues are included for download with this paper. We detect a total of 2507 sources at L band and 1413 sources at C band. 75 sources have been successfully cross-correlated in both radio bands plus X-ray. Three new nuclear sources are candidates for low luminosity active galactic nuclei in NGC 3877, NGC 4192, and NGC 5792; the one in NGC 3877 also appears to be variable. We also find new nuclear sources in two companion galaxies: NGC 4435 (companion to NGC 4438) and NGC 4298 (companion to NGC 4302). We have also discovered what appears to be a foreground double star; each star has X-ray emission and there is radio emission at both L band and C band in between them. This could be a colliding wind binary system. Suggestions for follow-up studies are offered.
Abstract Copyright:
© 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society
Journal keyword(s):
catalogues - galaxies: nuclei - radio continuum: galaxies - X-rays: galaxies
Status at CDS
:
Large table(s) will be appraised for possible ingestion in VizieR.
Simbad objects:
48
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