Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995mnras.276..592s&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 276, Issue 2, pp. 592-596.
Astronomy and Astrophysics
Astronomy
7
Galaxies: Individual: Eso138-G01, Galaxies: Jets, Galaxies: Seyfert, Galaxies: Stellar Content, X-Rays: Galaxies
Scientific paper
We present narrow-band CCD images of the high-excitation Seyfert 2 galaxy ESO138-G01, centred on the emission lines [OIII] lambda5007, Hα+[NII] lambdalambda6548, 6584 and adjacent continua. The continuum-subtracted [OIII] image presents an elongated jet-like structure to the west of the nucleus which is only weakly visible in the Hα image, and which we conclude is ionized by the nuclear source. The ionization map shows high excitation at the nucleus and at the `jet'. The continuum ratio map shows that this galaxy is very blue for its morphological type, consistent with the large contribution of a young stellar population up to 3kpc from the nucleus. We also propose that ESO138-G01 is the hard X-ray source previously identified with the nearby galaxy NGC 6621.
Schmitt Henrique R.
Storchi-Bergmann Thaisa
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