Dependence of equivalent width of quasar emission lines on UV-optical spectral index
2013 ◽
Vol 9
(S304)
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pp. 282-283
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Keyword(s):
AbstractUsing 192 composite spectra stacked from subsamples of individual SDSS quasar spectra binned in spectral index, αλ, and logarithm of monochromatic luminosity at 1450 Å, log l1450, and modelling separate spectral ranges with superposition of emission lines it was found that: there is a dependence of emission line equivalent width (EW) on αλ (correlation or anti-correlation) for some lines, mostly for those lines for which the Baldwin effect is detected, while for the lines for which the Baldwin effect is not observed any αλ-dependence was found.
2019 ◽
Vol 15
(S356)
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pp. 12-16
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2012 ◽
Vol 762
(1)
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pp. 51
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2001 ◽
Vol 372
(3)
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pp. 963-980
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2011 ◽
Vol 738
(1)
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pp. 68
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Keyword(s):
1996 ◽
Vol 173
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pp. 241-246
Keyword(s):
2019 ◽
Vol 15
(S341)
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pp. 201-205
Keyword(s):