Iqueye, a single photon-counting photometer applied to the ESO new technology telescope

G. Naletto; C. Barbieri; T. Occhipinti; I. Capraro; A. Di Paola; C. Facchinetti; E. Verroi; P. Zoccarato; G. Anzolin; M. Belluso; S. Billotta; P. Bolli; G. Bonanno; V. Da Deppo; S. Fornasier; C. Germanà; E. Giro; S. Marchi; F. Messina; C. Pernechele; F. Tamburini; M. Zaccariotto; L. Zampieri

doi:10.1051/0004-6361/200912862

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Volume 508 / No 1 (December II 2009)

A&A, 508 1 (2009) 531-539

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Table 2:

Main characteristics describing the performance of Iqueye applied to NTT.
System sensitivity	Photon counting
Relative time accuracy	100 ps (for 1 h of continuous observation)
Absolute time accuracy	500 ps (for 1 h of continuous observation)
Dark count rate	<100 Hz
Maximum count rate	8 MHz
Dynamic range	>40 dB
Limiting magnitude	m_V = 24 with 2 h exposure time and S/N = 10
Effective field of view	(selectable) 3.5, 5.2, or 6.1 arcsec
Operative spectral range	$\Delta\lambda = [350,925]$ nm (see Table 1 for filter details)
System total efficiency	33% (peak @ 550 nm)
	18% (average over $\Delta\lambda = [350,925]$ nm spectral range)

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