The X-ray nebula around the Seyfert 2 galaxy NGC4388
Astrophysics
2009-09-17 v1
Abstract
We report on X-ray emission from the Seyfert 2 galaxy NGC4388 observed with the Chandra X-ray Observatory. A hard X-ray peak is found at the position of the active nucleus suggested by optical and radio observations. Extended soft X-ray emission correlates well with the ionization cone found in optical line emission. A large soft X-ray extension is found up to 16 kpc to the north of the galaxy. Photoionized gas with low ionization parameters (xi<3) appears to be the likely explanation of this emission. The same ionized gas clouds could be responsible for the optical [OIII] emission. Fe K line emission from cold material is found to be extended by a few kpc.
Cite
@article{arxiv.astro-ph/0306139,
title = {The X-ray nebula around the Seyfert 2 galaxy NGC4388},
author = {K. Iwasawa and A. S. Wilson and A. C. Fabian and A. J. Young},
journal= {arXiv preprint arXiv:astro-ph/0306139},
year = {2009}
}
Comments
12 pages, one colour figure included, MNRAS in press