The Chandra view of the relation between X-ray and UV emission in quasars

Free Access

Table 2.

Summary of optical and X-ray properties.

SDSS name	Redshift	OBSID ^(a)	Θ^(b)	Exp ^(c)	DRflag ^(d)	f₂₅₀₀ ^(e)	f_{lim 2 keV} ^(h)	C_soft ⁽ⁱ⁾	C_hard ^(j)	SN_soft ^(k)	SN_hard ^(l)
000102.74+023503.2	0.76489	4837	4.80644	5788.17	DR14	−28.21 ± 0.02	−31.79	42	22	6.4	4.6
000130.63+233443.5	2.93	14898	5.82812	39465.1	DR12	−28.01 ± 0.05	−32.80	63	34	7.4	4.9
000150.39+023830.2	0.949	4837	8.79053	5788.17	DR12	−27.833 ± 0.010	−31.59	28	8	5.2	2.4
000151.58+232857.6	0.884201	14898	2.47162	39461.9	DR14	−27.747 ± 0.014	−32.48	60	25	7.7	4.9
000151.95+232421.0	2.03318	14898	5.64085	39461.9	DR12	−28.46 ± 0.05	−32.52	30	12	5.2	2.5

Notes. Summary of optical and X-ray properties inferred from the analysis for the first five observations in the sample. This table is available in its entirety at the CDS.

^(a)

Chandra observation identifier.

^(b)

Off-axis angle [arcmin].

^(c)

Exposure time [s].

^(d)

SDSS Data Release.

^(e)

Flux at 2500 Å as inferred from the UV SED analysis [erg s⁻¹ cm⁻² Hz⁻¹].

^(f)

Flux at 2 keV as inferred from the spectral analysis assuming a power-law model and Galactic absorption N_H [erg s⁻¹ cm⁻² Hz⁻¹].

^(g)

Photon index.

^(h)

Flux limit at 2 keV per observation [erg s⁻¹ cm⁻² Hz⁻¹].

⁽ⁱ⁾

Raw counts in the soft band (0.5−2 keV).

^(j)

Raw counts in the hard band (2−7 keV).

^(k)

Signal-to-noise in the soft band (0.5−2 keV).

^(l)

Signal-to-noise in the hard band (2−7 keV).

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.