IUE-IRAS studies of the infrared cirrus

Journal Article · Thu Dec 01 04:00:00 EST 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/166921· OSTI ID:6494545

Van Steenberg, M E; Shull, J M

The 60 and 100 micron cirrus emission around 256 lines of sight in the IRAS all-sky survey was measured, and the flux averages were used to study the distribution, variations, and correlations of the IRAS infrared cirrus fluxes with various interstellar parameters. It was found that the 60 and 100 micron fluxes correlate with the depletion of Si and show a trend with the depletion of Fe for 51 lines of sight toward the Galactic halo. No correlation was found with the abundances of Si, Mn, Fe, S, or Zn or with abundance ratios for the full sample of 256 stars. An abundance ratio of about 3 x 10 to the 7th by number relative to H was derived from 60 and 100 micron flux ratios and the H column along the line of sight; this ratio appears to decrease by a factor of 10 into the halo. 38 references.

• Research Organization: Joint Institute for Laboratory Astrophysics, Boulder, CO (USA)
• OSTI ID: 6494545
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 335; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
CHEMICAL COMPOSITION
CHEMISTRY
CORRELATIONS
COSMOCHEMISTRY
ELECTROMAGNETIC RADIATION
ELEMENTS
INFRARED RADIATION
INTERSTELLAR SPACE
IRON
MANGANESE
METALS
NONMETALS
RADIATION FLUX
RADIATIONS
SEMIMETALS
SILICON
SPACE
STARS
SULFUR
TEMPERATURE DISTRIBUTION
TRANSITION ELEMENTS
VARIATIONS
ZINC
ZODIACAL LIGHT