The photometric method of detecting other planetary systems

Details The photometric method of detecting other planetary systems The photometric method of detecting other planetary systems

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984icar...58..121b&link_type=abstract

Icarus (ISSN 0019-1035), vol. 58, April 1984, p. 121-134.

Other

85

Extrasolar Planets, Planetary Systems, Stellar Occultation, Stellar Spectrophotometry, Photometers, Signal Distortion, Stellar Color, Telescopes

Scientific paper

Rosenblatt (1971) has conducted an investigation regarding the use of photometric techniques to detect other planetary systems by searching for changes in starlight caused by the transit of a planet. The obtained results suggest that neither the intrinsic variation of the starlight nor the transmission fluctuations in the terrestrial atmosphere would prevent detection of planets as small as Mars with telescope apertures of 40 to 60 cm. The present investigation shows that Rosenblatt's results are too optimistic even for present-day differential photometric techniques. However, it appears that the detection of planets at least one-third the size of Jupiter is feasible, if a photometer with the required precision can be developed, taking into account the availability of a wide-angle telescope with a 1- to 2-m aperture.

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