S201 far-ultraviolet atlas of the Large Magellanic Cloud. Interim report

Technical Report · Wed Jul 12 04:00:00 EDT 1978

OSTI ID:6097533

Page, T; Carruthers, G R

Far-ultraviolet electrographic images, covering the wavelength ranges 1050 to 1600 A and 1230 to 1600 A, were obtained of the Large Magellanic Cloud during the Apollo 16 mission with the NRL Far-Ultraviolet Camera/Spectrograph (Experiment S201). The images have about 4-arc-minute resolution and reveal early-type star associations, individual early-type LMC stars, and galactic foreground stars. The images were analyzed in the manner described in the S201 Catalog of Far-Ultraviolet Objects (NRL Report 8173), and isodensity contour maps of the LMC were generated from the far-UV images. Individual far-UV brightnesses were determined, and corrected for interstellar extinction, for 122 Lucke-Hodge associations and 157 Henize nebulas. Over 130 other objects, of which 20 were identified as galactic foreground stars, were also measured. The ratio of UV flux to hydrogen Balmer-alpha (H-alpha) intensity, denoted hydrogen index, was determined for 90 of the Henize nebulas. The Atlas listing, which lists the individual far-UV flux measurements and hydrogen index determinations, is also available on a seven-track magnetic tape.

• Research Organization: Naval Research Lab., Washington, DC (USA)
• OSTI ID: 6097533
• Report Number(s): AD-A-060437
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BALMER LINES
BRIGHTNESS
ELECTROMAGNETIC RADIATION
FAR ULTRAVIOLET RADIATION
GALAXIES
MAGELLANIC CLOUDS
MAPS
NEBULAE
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATION FLUX
RADIATIONS
ULTRAVIOLET RADIATION