Fluorescent hydroxyl emissions from Saturn's ring atmosphere.
Science
; 272(5261): 516-8, 1996 Apr 26.
Article
in En
| MEDLINE
| ID: mdl-8614798
ABSTRACT
Just before earth passed through Saturn's ring plane on 10 August 1995, the Hubble Space Telescope Faint Object Spectrograph detected ultraviolet fluorescent emissions from a tenuous atmosphere of OH molecules enveloping the rings. Brightnesses decrease with increasing distance above the rings, implying a scale height of about 0.45 Saturn radii (Rs). A spatial scan 0.28Rs above the A and B rings indicates OH column densities of about 10(13) cm(-2) and number densities of up to 700 cm(-3). Saturn's rings must produce roughly 10(25) to 10(29) OH molecules per second to maintain the observed OH distribution.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Hydroxyl Radical
/
Saturn
/
Extraterrestrial Environment
Language:
En
Journal:
Science
Year:
1996
Document type:
Article
Affiliation country:
United States
Publication country:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
/
US
/
USA