XMM-Newton observation of the interacting galaxies NGC 1512 and NGC 1510

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Volume 566 (June 2014)

A&A, 566 (2014) A115

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Table 4

Spectral fit results for the central diffuse emission in NGC 1512. See text for description of the model components.

Comp.	Parameter	Value

Foreground absorption
`phabs`	N_H (10²² cm^-2)	0.01 (fixed)^a
`vphabs`	N_H (10²² cm^-2)	0.00 (<0.38))^b

NGC 1512 components
`vapec` ^c	kT (keV)	0.66 (0.28–0.89)
	norm (10^-6)	1.28 (0.84–1.76)
	F_{X,0.3−10 keV} (10^-14 erg cm^-2 s^-1)	1.4^d
	L_{X,0.3−10 keV} (10³⁸ erg s^-1)	1.5^d

Fit statistic		0.93 (27 d.o.f.)

Notes. The APB, SWCX, and SP parameters are fixed according to the background results described in the text.

^(a)

Fixed to the Galactic column density from the Leiden/Argentine/Bonn (LAB) Survey of Galactic HI (Kalberla et al. 2005).

^(b)

Abundances fixed to those of NGC 1512. Only an upper limit for N_H could be determined. We caution that this upper limit may be misleading as the fit is not very sensitive to the parameter (see text).

^(c)

Abundances fixed to those of NGC 1512.

^(d)

Values are de-absorbed.

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