Spectroastrometry of rotating gas disks for the detection of supermassive black holes in galactic nuclei - I. Method and simulations

Home

All issues

Volume 511 (February 2010)

A&A, 511 (2010) A19

Full HTML

Free Access

Table 3:

Effect of varying the intrinsic flux distribution at sub-resolution scales: fit results.
Parameter	Fit result				Model value
	flux distribution A^f	flux distribution B^f	flux distribution C^f	flux distribution D^f
$\theta_{\rm LON}\ \ \ [^{\circ}]\ \ \ \ ({\rm LON\ fit})$	$-1.0\pm1.3$	$0.9\pm1.1$	$-4.1\pm1.3$	$5.7\pm8.3$	0.00
$b\ \ \ [\hbox{$^{\prime\prime}$ }]\ \ \ \ \ ({\rm LON\ fit})$	$0.001\pm0.002$	$0.000\pm0.002$	$0.002\pm0.003$	$0.02\pm0.01$	0.00
$\log_{10}(M_{\rm BH}/M_\odot)$	$7.91\pm 0.02$	$8.16\pm 0.03$	$8.04\pm0.03$	$8.13\pm 0.10$	8.00
$\log_{10}(M/L)\ \ \ [ M_\odot/L_\odot ]\ \ \ \ \$	-8.23^a	-7.41^a	-8.15^a	-6.68^a	0.00
$S_0\ \ \ [\hbox{$^{\prime\prime}$ }]$	$0.012\pm0.008$	$-0.01\pm0.03$	$-0.01\pm0.01$	$0.02\pm0.03$	0.00
$V_{\rm sys}\ \ \ [{\rm km~s}^{-1}]$	$534\pm 18$	$494\pm32$	$478\pm35$	$500\ ^b$	500
$i\ \ \ [^{\circ}]$	35.0^b	35.0^b	35.0^b	35.0^b	35.0
$\Delta_{\rm sys}\ \ \ [{\rm km~s}^{-1}]$	8	28	22	0	-
reduced $\chi^2 \ \ \ (\chi^2/{\rm d.o.f.})$	$1.05\ \ (5.25/5)$	$1.05\ \ (4.19/4)$	$1.05\ \ (6.28/6)$	$1.006\ \ (1.006/1)$	-
$x_{\rm BH}\ \ \ [\hbox{$^{\prime\prime}$ }]$	$0.012\pm0.008$	$-0.01\pm0.03$	$-0.01\pm0.01$	$0.02\pm0.03$	0.00
$y_{\rm BH}\ \ \ [\hbox{$^{\prime\prime}$ }]$	$0.001\pm0.002$	$0.001 \pm 0.003$	$0.001\pm0.002$	$0.02\pm0.02$	0.00

Notes. ^(f) Flux distribution. A: exponential centered on $(0\hbox {$^{\prime \prime }$ },0\hbox {$^{\prime \prime }$ })$ with $r_0=0.05\hbox {$^{\prime \prime }$ }$ . B: exponential centered on $(0\hbox {$^{\prime \prime }$ },0\hbox {$^{\prime \prime }$ })$ with $r_0=0.15\hbox {$^{\prime \prime }$ }$ . C: exponential centered on $(0\hbox {$^{\prime \prime }$ },0\hbox {$^{\prime \prime }$ })$ with $r_0=0.05\hbox {$^{\prime \prime }$ }$ and a central hole of radius $r_{\rm h}=0.04\hbox {$^{\prime \prime }$ }$ . D: exponential centered on $(0.1\hbox {$^{\prime \prime }$ },0.1\hbox {$^{\prime \prime }$ })$ with $r_0=0.05\hbox {$^{\prime \prime }$ }$ . ^(a) Parameter not constrained from the fit; ^(b) parameter hold fixed.

Source LaTeX | All tables | In the text

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.