Spectropolarimetry of the 5797 A diffuse interstellar band
1992; IOP Publishing; Volume: 398; Linguagem: Inglês
10.1086/186579
ISSN1538-4357
AutoresA. J. Adamson, D. C. B. Whittet,
Tópico(s)Scientific Research and Discoveries
Resumoview Abstract Citations (13) References (31) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Spectropolarimetry of the 5797 Angstrom Diffuse Interstellar Band Adamson, A. J. ; Whittet, D. C. B. Abstract This paper reports new spectropolarimetry of 5797 A and other DIBs in the 5600-6000 A region. Results are in all cases negative: there is no detectable excess polarization in the features. We conclude that if dust grains are responsible for the 5797 A feature, they are not alignable, yet these same grains apparently give rise to a significant fraction of the observed interstellar extinction. Carbon-rich small grains appear to be the most likely solid-state carriers. Publication: The Astrophysical Journal Pub Date: October 1992 DOI: 10.1086/186579 Bibcode: 1992ApJ...398L..69A Keywords: Astronomical Polarimetry; Interstellar Extinction; Interstellar Matter; Spectral Bands; Stellar Spectrophotometry; Cosmic Dust; Linear Polarization; Spectral Line Width; Astrophysics; ISM: DUST; EXTINCTION; POLARIZATION; STARS: INDIVIDUAL HENRY DRAPER NUMBER: HD 183143; STARS: INDIVIDUAL HENRY DRAPER NUMBER: HD 194279 full text sources ADS | data products SIMBAD (2)
Referência(s)