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Kinematics from spectroscopy with a wide slit: detecting black holes in galaxy centres

Abstract:

We consider long-slit emission-line spectra of galactic nuclei when the slit is wider than the instrumental point spread function, and the target has large velocity gradients. The finite width of the slit generates complex distributions of brightness at a given spatial point in the measured spectrum, which can be misinterpreted as coming from additional physically distinct nuclear components. We illustrate this phenomenon for the case of a thin disc in circular motion around a nuclear black h...

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Publication status:
Published

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Journal:
Monthly Notices of the Royal Astronomical Society More from this journal
Volume:
323
Issue:
4
Pages:
831-838
Publication date:
2001-06-01
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
Language:
English
Keywords:
Pubs id:
pubs:211531
UUID:
uuid:caa29b87-4c55-4d71-bfdd-9f6c2f67f631
Local pid:
pubs:211531
Source identifiers:
211531
Deposit date:
2012-12-19

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