The high speed photometer of Asiago Observatory

Details The high speed photometer of Asiago Observatory The high speed photometer of Asiago Observatory

Dec 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978a%26a....70..821b&link_type=abstract

Astronomy and Astrophysics, vol. 70, no. 6, Dec. 1978, p. 821-828. Research supported by the Osservatorio Astrofisico di Asiago

Astronomy and Astrophysics

Astrophysics

8

Astronomical Photometry, Photometers, Time Measurement, Astronomical Observatories, Data Recorders, Frequency Standards, Novae, Pulsars, Universal Time, X Ray Stars

Scientific paper

The paper describes the instrumentation for a high-time-resolution photometer system. The main components described are the two-channel photometer head, a photon counting unit, a data logger (an HP 5401 B multichannel analyzer), a time base, the time and frequency standard, and the control logic and interfaces. The absolute timing of the optical pulsar NP 0532 can be carried out as a routine task with great ease of operation. A typical observing run, in bad sky conditions, on the recurrent nova T CrB with 1-sec sampling time is shown. The light curve shows the gross features of the flickering intrinsic to the target with quasi-periodic components of 3.6 and 6.7 min.

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