Table 1.
Open in new tab

Best-fitting parameters of the simultaneous Chandra HETG and NuSTAR spectra. The Chandra HEG and MEG first order as well as NuSTAR FPMA and FPMB spectra (in black, red, green and blue, respectively) are fit simultaneously, leaving a cross-normalization constant free to vary (cMEG, cnuA, and cnuB). The first model, B1, DBB + BB is composed by tbabs(diskbb + bbody), the second, B2, is additionally absorbed by an approximate ionized absorption component (tbabs∗zxipcf(diskbb + bbody)). Model B3 additionally considers the emission from a thermal Comptonization component (tbabs∗zxipcf(diskbb+bbody + nthcomp)). The continuum emission components in model B6 correspond to the ones of B3, however the ionized absorption is substituted by a self consistent one (IAsoft: tbabs∗IA(diskbb+bbody + nthcomp)). Finally, model B7 additionally consider the emission from a relativistic Fe K α line (tbabs∗IA(diskbb+bbody+nthcomp + diskline)). See text for description of the various parameters. ♭ In keV units. ⋆ In units of 1022 cm−2. ‡ Normalization N = R2cos(θ), where R2 is the apparent disc inner disc radius (or blackbody radius) in km, and θ the angle of the disc (θ = 0 face on, cos(θ) = 1 for blackbody).

Chandra + NuSTARsoft state (2016-04-21)
ModelB1B2B3B6B7
DBB + BBxipcf(DBB + BB)xipcf (DBB+BB + nth)IA (DBB+BB + nth)IA (dl+DBB+BB + nth)
NH⋆0.156 ± 0.0080.154 ± 0.0090.229 ± 0.0160.233 ± 0.0070.21 ± 0.01
Log (ξ1)4.25 ± 0.024.25 ± 0.024.54 ± 0.01|$3.76^{+0.12}_{-0.03}$|
Log |$(N_{H_{1}})$|⋆23.6 ± 0.123.6 ± 0.124.25 ± 0.02|$23.48^{+0.16}_{-0.05}$|
αd|$-2.61^{+0.07}_{-0.10}$|
Nd× 10−31.5 ± 0.1
kTDBB♭1.62 ± 0.011.60 ± 0.01|$0.89^{+0.04}_{-0.12}$|1.02 ± 0.011.34 ± 0.05
NDBB‡5.3 ± 0.15.6 ± 0.1|$6.6^{+0.8}_{-4.0}$|8.3 ± 0.18.7 ± 0.5
kTBB♭3.06 ± 0.032.96 ± 0.031.23 ± 0.051.55 ± 0.01|$2.51^{+0.05}_{-0.11}$|
NBB‡0.30 ± 0.010.37 ± 0.025.2 ± 1.51.96 ± 0.050.43 ± 0.1
kTe3.72 ± 0.053.77 ± 0.02|$4.4^{+0.7}_{-0.5}$|
NComp× 10−27.9 ± 1.56.46 ± 0.04|$2.61^{+1.1}_{-0.8}$|
cMEG1.03 ± 0.011.03 ± 0.011.03 ± 0.011.03 ± 0.011.03 ± 0.01
cFPMA1.00 ± 0.011.00 ± 0.011.00 ± 0.011.00 ± 0.011.00 ± 0.01
cFPMB1.00 ± 0.011.00 ± 0.011.00 ± 0.011.00 ± 0.011.00 ± 0.01
Cstat/dof9777.8/70948133.6/70927935.7/70907751.4/70907584.7/7088
Chandra + NuSTARsoft state (2016-04-21)
ModelB1B2B3B6B7
DBB + BBxipcf(DBB + BB)xipcf (DBB+BB + nth)IA (DBB+BB + nth)IA (dl+DBB+BB + nth)
NH⋆0.156 ± 0.0080.154 ± 0.0090.229 ± 0.0160.233 ± 0.0070.21 ± 0.01
Log (ξ1)4.25 ± 0.024.25 ± 0.024.54 ± 0.01|$3.76^{+0.12}_{-0.03}$|
Log |$(N_{H_{1}})$|⋆23.6 ± 0.123.6 ± 0.124.25 ± 0.02|$23.48^{+0.16}_{-0.05}$|
αd|$-2.61^{+0.07}_{-0.10}$|
Nd× 10−31.5 ± 0.1
kTDBB♭1.62 ± 0.011.60 ± 0.01|$0.89^{+0.04}_{-0.12}$|1.02 ± 0.011.34 ± 0.05
NDBB‡5.3 ± 0.15.6 ± 0.1|$6.6^{+0.8}_{-4.0}$|8.3 ± 0.18.7 ± 0.5
kTBB♭3.06 ± 0.032.96 ± 0.031.23 ± 0.051.55 ± 0.01|$2.51^{+0.05}_{-0.11}$|
NBB‡0.30 ± 0.010.37 ± 0.025.2 ± 1.51.96 ± 0.050.43 ± 0.1
kTe3.72 ± 0.053.77 ± 0.02|$4.4^{+0.7}_{-0.5}$|
NComp× 10−27.9 ± 1.56.46 ± 0.04|$2.61^{+1.1}_{-0.8}$|
cMEG1.03 ± 0.011.03 ± 0.011.03 ± 0.011.03 ± 0.011.03 ± 0.01
cFPMA1.00 ± 0.011.00 ± 0.011.00 ± 0.011.00 ± 0.011.00 ± 0.01
cFPMB1.00 ± 0.011.00 ± 0.011.00 ± 0.011.00 ± 0.011.00 ± 0.01
Cstat/dof9777.8/70948133.6/70927935.7/70907751.4/70907584.7/7088
Table 1.
Open in new tab

Best-fitting parameters of the simultaneous Chandra HETG and NuSTAR spectra. The Chandra HEG and MEG first order as well as NuSTAR FPMA and FPMB spectra (in black, red, green and blue, respectively) are fit simultaneously, leaving a cross-normalization constant free to vary (cMEG, cnuA, and cnuB). The first model, B1, DBB + BB is composed by tbabs(diskbb + bbody), the second, B2, is additionally absorbed by an approximate ionized absorption component (tbabs∗zxipcf(diskbb + bbody)). Model B3 additionally considers the emission from a thermal Comptonization component (tbabs∗zxipcf(diskbb+bbody + nthcomp)). The continuum emission components in model B6 correspond to the ones of B3, however the ionized absorption is substituted by a self consistent one (IAsoft: tbabs∗IA(diskbb+bbody + nthcomp)). Finally, model B7 additionally consider the emission from a relativistic Fe K α line (tbabs∗IA(diskbb+bbody+nthcomp + diskline)). See text for description of the various parameters. ♭ In keV units. ⋆ In units of 1022 cm−2. ‡ Normalization N = R2cos(θ), where R2 is the apparent disc inner disc radius (or blackbody radius) in km, and θ the angle of the disc (θ = 0 face on, cos(θ) = 1 for blackbody).

Chandra + NuSTARsoft state (2016-04-21)
ModelB1B2B3B6B7
DBB + BBxipcf(DBB + BB)xipcf (DBB+BB + nth)IA (DBB+BB + nth)IA (dl+DBB+BB + nth)
NH⋆0.156 ± 0.0080.154 ± 0.0090.229 ± 0.0160.233 ± 0.0070.21 ± 0.01
Log (ξ1)4.25 ± 0.024.25 ± 0.024.54 ± 0.01|$3.76^{+0.12}_{-0.03}$|
Log |$(N_{H_{1}})$|⋆23.6 ± 0.123.6 ± 0.124.25 ± 0.02|$23.48^{+0.16}_{-0.05}$|
αd|$-2.61^{+0.07}_{-0.10}$|
Nd× 10−31.5 ± 0.1
kTDBB♭1.62 ± 0.011.60 ± 0.01|$0.89^{+0.04}_{-0.12}$|1.02 ± 0.011.34 ± 0.05
NDBB‡5.3 ± 0.15.6 ± 0.1|$6.6^{+0.8}_{-4.0}$|8.3 ± 0.18.7 ± 0.5
kTBB♭3.06 ± 0.032.96 ± 0.031.23 ± 0.051.55 ± 0.01|$2.51^{+0.05}_{-0.11}$|
NBB‡0.30 ± 0.010.37 ± 0.025.2 ± 1.51.96 ± 0.050.43 ± 0.1
kTe3.72 ± 0.053.77 ± 0.02|$4.4^{+0.7}_{-0.5}$|
NComp× 10−27.9 ± 1.56.46 ± 0.04|$2.61^{+1.1}_{-0.8}$|
cMEG1.03 ± 0.011.03 ± 0.011.03 ± 0.011.03 ± 0.011.03 ± 0.01
cFPMA1.00 ± 0.011.00 ± 0.011.00 ± 0.011.00 ± 0.011.00 ± 0.01
cFPMB1.00 ± 0.011.00 ± 0.011.00 ± 0.011.00 ± 0.011.00 ± 0.01
Cstat/dof9777.8/70948133.6/70927935.7/70907751.4/70907584.7/7088
Chandra + NuSTARsoft state (2016-04-21)
ModelB1B2B3B6B7
DBB + BBxipcf(DBB + BB)xipcf (DBB+BB + nth)IA (DBB+BB + nth)IA (dl+DBB+BB + nth)
NH⋆0.156 ± 0.0080.154 ± 0.0090.229 ± 0.0160.233 ± 0.0070.21 ± 0.01
Log (ξ1)4.25 ± 0.024.25 ± 0.024.54 ± 0.01|$3.76^{+0.12}_{-0.03}$|
Log |$(N_{H_{1}})$|⋆23.6 ± 0.123.6 ± 0.124.25 ± 0.02|$23.48^{+0.16}_{-0.05}$|
αd|$-2.61^{+0.07}_{-0.10}$|
Nd× 10−31.5 ± 0.1
kTDBB♭1.62 ± 0.011.60 ± 0.01|$0.89^{+0.04}_{-0.12}$|1.02 ± 0.011.34 ± 0.05
NDBB‡5.3 ± 0.15.6 ± 0.1|$6.6^{+0.8}_{-4.0}$|8.3 ± 0.18.7 ± 0.5
kTBB♭3.06 ± 0.032.96 ± 0.031.23 ± 0.051.55 ± 0.01|$2.51^{+0.05}_{-0.11}$|
NBB‡0.30 ± 0.010.37 ± 0.025.2 ± 1.51.96 ± 0.050.43 ± 0.1
kTe3.72 ± 0.053.77 ± 0.02|$4.4^{+0.7}_{-0.5}$|
NComp× 10−27.9 ± 1.56.46 ± 0.04|$2.61^{+1.1}_{-0.8}$|
cMEG1.03 ± 0.011.03 ± 0.011.03 ± 0.011.03 ± 0.011.03 ± 0.01
cFPMA1.00 ± 0.011.00 ± 0.011.00 ± 0.011.00 ± 0.011.00 ± 0.01
cFPMB1.00 ± 0.011.00 ± 0.011.00 ± 0.011.00 ± 0.011.00 ± 0.01
Cstat/dof9777.8/70948133.6/70927935.7/70907751.4/70907584.7/7088
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