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Home All issues Volume 691 (November 2024) A&A, 691 (2024) A264 Full HTML
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Table A.1.

Spectral parameters obtained from fitting the average EPIC and RGS spectra of J0826 using model A= ‘tbabs×(partcov×tbabs)×( ∑ i = 1 4 apec i $ \sum_{i=1}^4 {\mathtt{apec}}_{i} $ + ∑ i = 1 6 gauss i $ \sum_{i=1}^6 {\mathtt{gauss}}_{i} $ )’.

Model Parameters Value
tbabs NH ( 10 20 cm − 2 $ 10^{20} \rm ~cm^{-2} $) 1 . 6 − 0.6 + 0.6 $ 1.6_{-0.6}^{+0.6} $
partcov cf 0 . 42 − 0.04 + 0.05 $ 0.42_{-0.04}^{+0.05} $
tbabs NH, cf ( 10 21 cm − 2 $ 10^{21} \rm ~cm^{-2} $) 7 . 3 − 1.3 + 1.4 $ 7.3_{-1.3}^{+1.4} $
apec T1 (keV) 0 . 25 − 0.02 + 0.02 $ 0.25_{-0.02}^{+0.02} $
Z1 (Z⊙) 2 . 7 − 0.2 + 0.2 $ 2.7_{-0.2}^{+0.2} $
N1 (10−4) 2 . 4 − 0.4 + 0.5 $ 2.4_{-0.4}^{+0.5} $
apec T2 (keV) 0 . 90 − 0.03 + 0.05 $ 0.90_{-0.03}^{+0.05} $
Z2 (Z⊙) 2.7 (tied to Z1)
N2 (10−4) 2 . 1 − 0.3 + 0.3 $ 2.1_{-0.3}^{+0.3} $
apec T3 (keV) 4 . 7 − 0.3 + 0.3 $ 4.7_{-0.3}^{+0.3} $
Z3 (Z⊙) 2.7 (tied to Z1)
N3 (10−3) 3 . 6 − 0.4 + 0.4 $ 3.6_{-0.4}^{+0.4} $
apec T4 (keV) 46 . 1 − 4.8 + 4.7 $ 46.1_{-4.8}^{+4.7} $
Z4 (Z⊙) 2.7 (tied to Z1)
N4 (10−2) 1 . 61 − 0.03 + 0.03 $ 1.61_{-0.03}^{+0.03} $
gauss σ0.43 (eV) 1 . 5 − 0.3 + 0.4 $ 1.5_{-0.3}^{+0.4} $
F0.43 (10−4) 2 . 6 − 0.4 + 0.5 $ 2.6_{-0.4}^{+0.5} $
EW 0.43 † $ _{0.43}^{\dagger} $ (eV) 17 . 2 − 4.3 + 4.0 $ 17.2_{-4.3}^{+4.0} $
gauss σ0.50 (eV) 68 . 8 − 16.9 + 14.7 $ 68.8_{-16.9}^{+14.7} $
F0.50 (10−4) 7 . 1 − 2.2 + 3.0 $ 7.1_{-2.2}^{+3.0} $
EW 0.50 † $ _{0.50}^{\dagger} $ (eV) 7 . 8 − 2.2 + 1.7 $ 7.8_{-2.2}^{+1.7} $
gauss σ0.57 (eV) 2 . 0 − 1.4 + 2.0 $ 2.0_{-1.4}^{+2.0} $
F0.57 (10−4) 1 . 3 − 0.4 + 0.4 $ 1.3_{-0.4}^{+0.4} $
EW 0.57 † $ _{0.57}^{\dagger} $ (eV) 22 . 0 − 4.4 + 5.6 $ 22.0_{-4.4}^{+5.6} $
gauss σ0.65 (eV) 7 . 6 − 3.3 + 6.2 $ 7.6_{-3.3}^{+6.2} $
F0.65 (10−5) 4 . 7 − 3.1 + 3.2 $ 4.7_{-3.1}^{+3.2} $
EW 0.65 † $ _{0.65}^{\dagger} $ (eV) 22 . 9 − 3.0 + 2.6 $ 22.9_{-3.0}^{+2.6} $
gauss σ1.02 (eV) > 0.03
F1.02 (10−5) 5 . 7 − 1.5 + 1.2 $ 5.7_{-1.5}^{+1.2} $
EW 1.02 † $ _{1.02}^{\dagger} $ (eV) 17 . 7 − 4.0 + 3.9 $ 17.7_{-4.0}^{+3.9} $
gauss F6.4 (10−5) 3 . 4 − 0.3 + 0.3 $ 3.4_{-0.3}^{+0.3} $
EW6.4 (eV) 86 . 4 − 0.2 + 0.2 $ 86.4_{-0.2}^{+0.2} $
Unabsorbed X-ray flux FX, unabs (10−11 erg cm−2 s−1) 4 . 32 − 0.01 + 0.01 $ 4.32_{-0.01}^{+0.01} $
Absorbed X-ray flux FX, abs (10−11 erg cm−2 s−1) 3 . 81 − 0.01 + 0.01 $ 3.81_{-0.01}^{+0.01} $
Bolometric flux FX, bol (10−10 erg cm−2 s−1) 1 . 087 − 0.005 + 0.005 $ 1.087_{-0.005}^{+0.005} $
Bolometric luminosity LX, bol (1033 erg s−1) 1 . 745 − 0.008 + 0.007 $ 1.745_{-0.008}^{+0.007} $
χν2 (dof) 1.30 (1234)

Note. FX, unabs and FX, abs are unabsorbed and absorbed X-ray flux in the 0.3-10.0 keV energy band, respectively; FX, bol is the unabsorbed bolometric flux derived for the 0.001-100.0 keV energy band; LX, bol is the corresponding bolometric luminosity calculated by assuming a distance of 366 pc.

† indicates that the EWs are calculated using the model ‘tbabs×(powerlaw+ ∑ i = 1 5 gauss i $ \sum_{i=1}^5 {\mathtt{gauss}}_{i} $)’ on the RGS spectrum only.

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