The X-ray puzzle of the L1551 IRS 5 jet | Astronomy & Astrophysics (A&A)

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Table 2

Plasma properties of HH 154 with 1σ errors.

	N_H	kT	EM	L_X
	(10²²cm^-2)	(keV)	(10⁵¹cm^-3)	(10²⁷erg/s)

Composite spectrum (ellipse)
Solution I	1.1 ± 0.1	0.6 ± 0.1	7.9 ± 2.2	82.7
obs2001^a				89.7
obs2005^a				81.6
obs2009^a			7.4	77.6
Solution II	0.2 ± 0.1	1.8	1.9 ± 0.2	18.4

Individual spectra (ellipse)
XMM (2000)	1.0 ± 0.1	0.5 ± 0.1	8.4	89.7
obs2001	1.1	0.6	8.9	97.2
obs2005	1.1 ± 0.2	0.6 ± 0.1	7.8	79.8
obs2009	1.0 ± 0.2	0.6	7.0	73.4

Composite spectra
Eastern region	1.4	0.7 ± 0.2	6.6	78.1
Western region	0.6	0.3 ± 0.2	0.4	5.0

Notes. Spectra are binned to ~44eV wide channels, i.e. about three times oversampling the intrinsic energy resolution of the ACIS detectors, we used c-stat and the energy range 0.5–5.0 keV. Unabsorbed fluxes (0.5–10. keV) are given.

^(a)

N_H and kT fixed to values from co-added spectra.

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