Technical improvements of the Silicon Fast optical Astronomical Photometer (SiFAP) allow the instrumentation to integrate photons coming from the target in time windows down to 20μs. Further hardware improvement has been implemented to tag the Time of Arrival (ToA) of each single photon. In addition, a new commercial GPS unit has replaced the older commercial unit improving time resolution. The latest version of SiFAP has been calibrated to check photometric sensitivity and linearity through observations of several standard stars. SiFAP has been also successfully tested by observing the HZ/Her X-1 Binary System estimating the spin period of the pulsar (Her X-1). Our results have been then compared to data available in literature.
The Latest Version of SiFAP: Beyond Microsecond Time Scale Photometry of Variable Objects / Cretaro, Paolo; Meddi, Franco; Rossi, Corinne; Sclavi, Silvia; Bruni, I.; Ambrosino, F.. - In: JOURNAL OF ASTRONOMICAL INSTRUMENTATION. - ISSN 2251-1725. - ELETTRONICO. - 5:1650005(2016). [10.1142/S2251171716500057]
The Latest Version of SiFAP: Beyond Microsecond Time Scale Photometry of Variable Objects
CRETARO, PAOLO;MEDDI, Franco;ROSSI, Corinne;SCLAVI, SILVIA;Ambrosino, F.
2016
Abstract
Technical improvements of the Silicon Fast optical Astronomical Photometer (SiFAP) allow the instrumentation to integrate photons coming from the target in time windows down to 20μs. Further hardware improvement has been implemented to tag the Time of Arrival (ToA) of each single photon. In addition, a new commercial GPS unit has replaced the older commercial unit improving time resolution. The latest version of SiFAP has been calibrated to check photometric sensitivity and linearity through observations of several standard stars. SiFAP has been also successfully tested by observing the HZ/Her X-1 Binary System estimating the spin period of the pulsar (Her X-1). Our results have been then compared to data available in literature.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
