Quote:
Originally Posted by mithrandir
Robert, there is a star in UCAC4 right on top of IC4329
Is this the "star like structure" you referred to earlier?
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Hi Mithrandir,
No, I am referring to the star-like
nucleus of the edge-on spiral galaxy
IC 4329A (this galaxy is
near to the big elliptical IC 4329.)
The 'star' at the centre of IC 4329A appears to be a bona fide Active Galactic Nucleus
located within its host galaxy. (Dr William Keel says so, and he is an AGN expert.)
I therefore assume that it has been spectroscopically identified as such (same redshift as its host galaxy, very very Strongly Broadened spectral lines, etc.)
IC 4329 itself seems to have some sort of very-bright central feature, but this feature is
diffuse in appearance; the central profile (at small galactocentric radii) of increasing surface brightness vs. decreasing galactocentric radius..... is very steep in this galaxy.
Cheers,
Robert
"A Catalog of Quasars and Active Nuclei" by Veron-Cetty and Veron, classifies the nucleus of IC 4329A as being a Seyfert 1 nucleus.
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P.S.
Do you practise magic, like your famous namesake(Olorin)(Tharkun)(Incanus) ?
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