Analytical computation of the off-axis effective area of grazing incidence X-ray mirrors

D. Spiga; V. Cotroneo; S. Basso; P. Conconi

doi:10.1051/0004-6361/200912668

Home

All issues

Volume 505 / No 1 (October I 2009)

A&A, 505 1 (2009) 373-384

Full HTML

Free Access

Table 1:

Some examples of approximation introduced by the double cone geometry.
	SIMBOL-X	NeXT-HXT	NuSTAR	XMM
f	20 m	12 m	$\sim$ 10 m	7.5 m
$R_{0, {\rm max}}$	324 mm	225 mm	$\sim$ 169 mm	346 mm
L	300 mm	200 mm	200 mm	300 mm
$\frac{\displaystyle\Delta\alpha}{\displaystyle\alpha_0}$	0.4%	0.4 %	0.5%	1%
$\frac{\displaystyle\Delta A_1}{\displaystyle A_1}$	-0.18%	-0.20%	-0.25%	-0.5%
$\frac{\displaystyle\Delta V}{\displaystyle V}(\delta =0)$	1.5%	1.7%	2%	4%

Optical parameters after Pareschi et al. (2008); Ogasaka et al. (2008);
Koglin et al. (2005); Gondoin et al. (1998a).

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.