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Table 1

X-ray observation log of SDSS J1201+30.

Missiona Date Exp timeb Count ratec Fluxd
(s) (count s-1) (10-12 erg s-1 cm-2)
ROSAT 1990 500 <0.0068 <0.054
XMM slew 2010-06-10 8.9 2.1 ± 0.5
Swift 2010-06-20 2996 0.014 ± 0.002 0.56 ± 0.26
XMM pointed 2010-06-22 18865 0.37 ± 0.004 0.81 ± 0.07
Swift 2010-06-30 3252 0.041 ± 0.004 1.4 ± 0.4
Swift 2010-07-07 3580 <0.00084 <0.030
Swift 2010-07-14 2780 <0.0011 <0.039
Swift 2010-07-21 3065 <0.0010 <0.035
Swift 2010-07-28 505 <0.0059 <0.21
Swift 2010-10-24 3189 0.0037 ± 0.0013 0.13 ± 0.05
XMM pointed 2010-11-23 10697 0.079 ± 0.003 0.19 ± 0.03
XMM pointed 2010-12-23 11303 0.013 ± 0.001 0.04 ± 0.02
Swift 2011-03-25 2285 <0.0013 <0.046
Swift 2011-04-01 2912 <0.0010 <0.035
Swift 2011-04-11 2688 <0.0011 <0.039

Notes. 

(a)

XMM-Newton , EPIC-pn camera: slew observation performed in full frame mode with the Medium filter; pointed observations performed in full frame mode with the thin1 filter. Swift-XRT in pc mode.

(b)

Useful exposure time after removing times of high background flares.

(c)

Count rate in the band 0.2 − 2 keV.

(d)

Unabsorbed flux, F0.2 − 2   keV calculated with the best fit Bremsstrahlung model (or kT = 300 eV for the upper limits; see Sect. 4.3) and Galactic absorption of 1.4 × 1020 cm-2.

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