XMM-Newton observation of 4U 1820-30 - Broad band spectrum and the contribution of the cold interstellar medium

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Table 2

Broad band modeling of the source using EPIC-pn and INTEGRAL data.

	7.8 ± 0.3
T _bb	0.26 ± 0.01
k T ₀	0.48 ± 0.02
k T ₁	3.9 ± 0.1
τ	5.4 ± 0.2
χ²/ν	1756/1720
F _{0.5−2 keV} ¹	1.32 ± 0.02 × 10^-9
F _{2−10 keV} ²	5.02 ± 0.07 × 10^-9
F _{10−60 keV} ³	2.70 ± 0.02 × 10^-9

Notes. Units are: 10²⁰ cm^-2 for column densities, keV for temperatures, fluxes are measured in erg cm^-2 s^-1.

⁽¹⁾

From RGS data.

⁽²⁾

From JEMX data.

⁽³⁾

From JEMX and ISGRI data.

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