Exploring connections between the VLBI and optical morphology of AGNs and their host galaxies

Research output: Contribution to journalArticlepeer-review

Abstract

We analyse VLBI and optical images of AGNs and their host galaxies and look for statistical correlations between the shape and orientation of the galaxy and the direction of the jet. We utilise the Astrogeo catalogue, which has over 9000 VLBI sources, many of those with a clear core-jet like structure that allows for the jet position angle to be reliably determined. We then use the VLBI source positions to search for optical counterparts within various optical surveys. In order to parameterise the orientation and shape of the host galaxy, we fitted a Gaussian elliptical model to the optical image, taking the PSF into account. We check our own shape parameters from this fit against the ones provided by the optical surveys. As of yet, no clear correlation between the galaxy morphology and the jet direction is seen.

Original languageEnglish
Pages (from-to)31-34
Number of pages4
JournalProceedings of the International Astronomical Union
Volume17
DOIs
StatePublished - 11 Dec 2022

Bibliographical note

Publisher Copyright:
© 2022 Cambridge University Press. All rights reserved.

Keywords

  • AGN jets
  • Astrogeo
  • Galaxy morphology
  • Host galaxies
  • Jet direction
  • Optical counterparts
  • SDSS
  • VLBI

Fingerprint

Dive into the research topics of 'Exploring connections between the VLBI and optical morphology of AGNs and their host galaxies'. Together they form a unique fingerprint.

Cite this