A coordinated optical and X-ray spectroscopic campaign on HD 179949: searching for planet-induced chromospheric and coronal activity

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Table 6

X-ray spectral fitting results^a.

	Orbital	T₁	log EM₁	T₂		L_x^b
Obs Id	phase	(MK)	(cm^-3)	(MK)	EM₁/EM₂	(10²⁸ erg/s)		d.o.f.

Obs 1	0.160		51.4		3.4		1.4	55
Obs 2a	0.804		51.6		6.7		1.3	65
Obs 2b	0.862		51.3		1.2		1.3	66
Obs 3	0.300		51.5		10.4		1.6	57
Obs 4	0.454		51.4		1.5		1.5	48
Obs 5	0.743		51.4		3.3		1.4	42
Obs 6a	0.966		51.4		2.6		1.1	58
Obs 6b	0.028		51.4		2.4		0.9	57
Obs 6c	0.088		51.4		3.8		1.3	58
Obs 7	0.407		51.4		3.1		1.2	69
Obs 8a	0.599		51.2		1.2		1.1	62
Obs 8b	0.674		51.1		0.7		1.2	64
Obs 8c	0.762		51.5		8.4		1.6	61
Obs 9a	0.047		51.5		4.1		1.2	53
Obs 9b	0.093		51.4		1.5		0.9	53
Obs 9c	0.137		51.5		3.8		1.5	53
Obs 10	0.566		51.4		1.5		1.4	70
Obs 11	0.627		51.3		1.4		1.6	88
Obs 12	0.376		51.5		16.6		0.9	57
Obs 13	0.053		51.4		3.2		1.2	69
Obs 14	0.209		51.5		3.0		1.2	87
Obs 15	0.768		51.2		0.8		1.8	56

Notes.

^(a)

Two-component isothermal model with fixed abundance ratios (O/Fe = 0.3, Ne/Fe = 0.5, Mg/Fe = 0.9, and other element abundances equal to Fe = 0.5 Fe_⊙).

^(b)

X-ray luminosity in the 0.2–2.5 keV band.

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