Two lines of sight with exceedingly anomalous ultraviolet interstellar extinction

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

DOI:https://doi.org/10.1086/166057· OSTI ID:7222441

Cardelli, J A; Savage, B D

Low-resolution IUE data toward HD 62542 reveal an extinction curve with an extremely broad and weak UV extinction bump and the highest FUV extinction yet observed in the Milky Way. Parameters describing the central position and FWHM for weak bumps observed toward HD 62542 and HD 29647 are derived using analytical fitting techniques. In both cases, the bump central positions are shifted shortward of 2175 A with an initial wavelength of 2110 A for HD 62542 and an initial wavelength of 2128 A for HD 29647. The bump FWHM is found to be 1.29/micron and 1.62/micron for HD 62542 and HD 29647, respectively. 75 references.

• Research Organization: Washburn Observatory, Madison, WI (USA)
• OSTI ID: 7222441
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 325; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
ELECTROMAGNETIC RADIATION
FAR ULTRAVIOLET RADIATION
GALAXIES
INTERSTELLAR SPACE
MILKY WAY
RADIATIONS
SPACE
SPECTRA
STELLAR ACTIVITY
STELLAR WINDS
ULTRAVIOLET RADIATION
ULTRAVIOLET SPECTRA