Journal article
The History and Environment of a Faded Quasar: Hubble Space Telescope observations of Hanny's Voorwerp and IC 2497
- Abstract:
-
We present Hubble Space Telescope imaging and spectroscopy for the extended high-ionization cloud known as Hanny's Voorwerp, near the spiral galaxy IC 2497. WFC3 images show complex dust absorption near the nucleus of IC 2497. STIS spectra show a type 2 Seyfert AGN of rather low luminosity. The ionization parameter log U = -3.5 is in accord with its weak X-ray emission. We find no high-ionization gas near the nucleus, adding to evidence that the AGN is currently at low radiative output (perha...
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- Publication status:
- Published
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- Publisher copy:
- 10.1088/0004-6256/144/2/66
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Bibliographic Details
- Journal:
- ASTRONOMICAL JOURNAL
- Volume:
- 144
- Issue:
- 2
- Pages:
- 66-66
- Publication date:
- 2012-06-17
- DOI:
- EISSN:
-
1538-3881
- ISSN:
-
0004-6256
- URN:
-
uuid:c2951584-5162-4a28-a2dd-0fd016fe1fe4
- Source identifiers:
-
340087
- Local pid:
- pubs:340087
Item Description
- Language:
- English
- Keywords:
Terms of use
- Copyright date:
- 2012
- Notes:
-
Accepted for Astron. J., reduced-quality graphics; full-resolution
PDF available before publication at
http://astronomy.ua.edu/keel/research/HVHST-rev.pdf
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