Quasi-stellar objects in the ALHAMBRA survey - I. Photometric redshift accuracy based on 23 optical-NIR filter photometry

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Volume 542 (June 2012)

A&A, 542 (2012) A20

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Table 4

BLAGN/QSO photometric redshift results.

	Medium-bands + JHK_S				Medium-bands
	SEL^a		MEL^b		SEL^a		MEL^b
	No offsets	Offsets	No offsets	Offsets	No offsets	Offsets	No offsets	Offsets
	(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)

σ_NMAD	0.010	0.009	0.011	0.009	0.013	0.013	0.014	0.011
η	15.9	12.3	14.1	12.3	16.4	15.3	19.4	15.3
Extincted fraction ^c	46.9	61.7	61.6	79.0	45.8	55.6	71.0	81.3
⟨ E(B − V) ⟩ ^d	0.045	0.058	0.085	0.092	0.037	0.049	0.063	0.085
QSO1-hybrid fraction^e	92.3	92.6	95.2	95.3	92.2	91.7	94.9	95.1

Notes.

^(a)

Results using the SMC extinction law.

^(b)

Results using several extinction laws (SMC, LMC, MW, and Calzetti).

^(c)

Fraction of sources requiring extinction.

^(d)

Mean color excess applied to the extincted sources.

^(e)

Fraction of sources with pure QSO1 or hybrid QSO1/IRAS 22491 templates.

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