Simultaneous NICER and NuSTAR observations of the ultraluminous source NGC 4190 ULX-1

Home

All issues

Volume 686 (June 2024)

A&A, 686 (2024) A121

Full HTML

Open Access

Table 1.

Best fit parameters.

Component	Parameter	Model
		SIMPL	CUTOFFPL
CONS	C_A/XTI	1.26 ± 0.06	1.26 ± 0.06
	C_B/XTI	1.29 ± 0.06	1.28 ± 0.06
TBABS	N_H (10²² cm⁻²)	$0 . 09_{- 0.01}^{+ 0.02}$ $0.09_{-0.01}^{+0.02}$	0.09 ± 0.02
DISKBB	kT_in (keV)	0.4 ± 0.1	0.4 ± 0.1
CUTOFFPL	Γ	–	0.59 ^( † )
	E_fold (keV)	–	7.1 ^( † )
SIMPL	Γ	3.4 ± 0.3	–
	CF	$0 . 9_{- 0.4}^{+ 0.1}$ $0.9^{+0.1}_{-0.4}$	–
DISKPBB	kT (keV)	$1 . 2_{- 0.1}^{+ 0.3}$ $1.2^{+0.3}_{-0.1}$	$1 . 7_{- 0.1}^{+ 0.2}$ $1.7_{-0.1}^{+0.2}$
	p	$0 . 8_{- 0.1}^{+ 0.2}$ $0.8_{-0.1}^{+0.2}$	$0 . 7_{- 0.1}^{+ 0.2}$ $0.7_{-0.1}^{+0.2}$
Luminosity	10³⁹ erg s⁻¹	7.6 ± 0.2

χ²/d.o.f.		220.9/193	219.7/194

Notes. Best fit parameters and 90% level uncertainties derived from NICER+NuSTAR average spectra. The 0.3−30 keV unabsorbed luminosity was calculated adopting a distance of 2.9 Mpc (Tully et al. 2013). The ( † ) symbol indicates that the parameters was frozen during the fit.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.