Terrestrial Atmospheric Composition from Stellar Occultations | Zendy

P. B. Hays | Zendy; R. G. Roble | Zendy; A. N. Shah | Zendy

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Terrestrial Atmospheric Composition from Stellar Occultations

Author(s) -

P. B. Hays,

R. G. Roble,

A. N. Shah

Publication year - 1972

Publication title -

science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 12.556

H-Index - 1186

eISSN - 1095-9203

pISSN - 0036-8075

DOI - 10.1126/science.176.4036.793

Subject(s) - occultation , atmosphere (unit) , photometer , observatory , astronomy , ultraviolet , physics , atmospheric sciences , stars , altitude (triangle) , environmental science , atmospheric composition , satellite , astrobiology , astrophysics , meteorology , optics , geometry , mathematics

Stellar ultraviolet light transmitted through the earth's upper atmosphere is strongly absorbed by ozone and molecular oxygen. The stellar ultraviolet photometers aboard the Orbiting Astronomical Observatory (OAO-2) satellite have measured the intensity changes of several stars during occultation of the star by the earth's atmosphere. From the occultation data the nighttime vertical number density profiles of molecular oxygen at altitudes from 120 to 200 kilometers and of ozone at altitudes from 60 to 100 kilometers have been obtained.

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