Narrow Diffuse Interstellar Bands: A Survey with Precise Wavelengths

Details Narrow Diffuse Interstellar Bands: A Survey with Precise Wavelengths Narrow Diffuse Interstellar Bands: A Survey with Precise Wavelengths

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000pasp..112..648g&link_type=abstract

The Publications of the Astronomical Society of the Pacific, Volume 112, Issue 771, pp. 648-690.

Astronomy and Astrophysics

Astronomy

97

Ism: Dust, Extinction, Ism: Abundances, Ism: General, Ism: Lines And Bands

Scientific paper

We present an atlas of 271 diffuse interstellar bands (DIBs) between 4460 and 8800 Å based on echelle spectra (R=45,000), of which more than 100 are new DIBs discovered in this survey. The atlas is restricted mostly to narrow features, and we describe the tests for an interstellar origin. The rest wavelength of each DIB was determined in a high-quality composite spectrum of the star HD 23180 using the interstellar Na I (D1 and D2) lines to establish the radial velocity of the single intervening cloud. DIB wavelengths are quoted to 0.01 Å and are probably accurate to ~0.1 Å. Other, weak DIBs found in the spectra of heavily reddened stars are included with a lower wavelength precision.

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