Published September 1990 | Version v1
Journal article Metadata-only

Unusual infrared line profiles in the post-asymptotic giant branch star HD 56126

Creators

  • 1. Joint Astronomy Centre, Hilo, HI (USA)
  • 2. Valparaiso Univ., IN (USA)
  • 3. Joint Institute for Laboratory Astrophysics, Boulder, CO (USA)

Description

Brackett series lines with very broad inverted P Cygni and shell-like profiles have been detected toward the post-AGB star HD 56126. These profiles suggest that an active phase of mass loss has begun recently in this star. The star has had at least one previous episode of intense mass loss, attested to by its strong far-infrared emission. HD 56126 is also known for having a broad emission feature at 21 microns. The unidentified emission bands at 3.3 and 3.4 microns are also present in the spectrum of HD 56126, but the near-infrared spectrum provides little help in establishing the carrier of the 21 microns band. 22 refs

Additional details

Publishing Information

Journal Title
Astrophysical Journal
Journal Volume
360
Series
Astrophys. J.
Journal Page Range
L23-L26
ISSN
0004-637X
CODEN
ASJOA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
22014294
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
EMISSION SPECTRA; ENERGY SPECTRA; HYDROGEN; INFRARED SPECTRA; MASS TRANSFER; PLANETARY NEBULAE; RED SHIFT; SPECTROPHOTOMETRY; STAR EVOLUTION; STARS
Descriptors DEC
ELEMENTS; NEBULAE; NONMETALS; SPECTRA