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The Presence of Diffuse Interstellar Bands in the Spectra of Cool Stars
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Astronomy and Space Physics.
2007 (English)In: Astrophysical Journal, ISSN 0004-637X, E-ISSN 1538-4357, Vol. 664, no 2, 909-914 p.Article in journal (Refereed) Published
Abstract [en]

Data from the Kitt Peak National Observatory (KPNO) coudé feed telescope were used to analyze the strength of three well-known diffuse interstellar bands (DIBs; 5780, 5797, and 6614 Å). Ten mid-A, mid-F, and mid-G stars with moderate reddening (EB-V=0.2-1.2) were observed, along with one reddened B0 dwarf for comparison. Synthetic spectra were calculated to remove the interference of stellar features. We report the detection of all three DIBs in A, F, and G stars. We also find the correlation of DIB strengths with E(B-V), in our sight lines, to be consistent with previous results from Herbig (1993), demonstrating that DIB strength is not dependent on the spectral type of the target star.

Place, publisher, year, edition, pages
2007. Vol. 664, no 2, 909-914 p.
Keyword [en]
ISM: Lines and Bands, Line: Identification, Stars: Late-Type
National Category
Astronomy, Astrophysics and Cosmology
URN: urn:nbn:se:uu:diva-14308DOI: 10.1086/519069ISI: 000248675000024OAI: oai:DiVA.org:uu-14308DiVA: diva2:42078
Available from: 2008-01-29 Created: 2008-01-29 Last updated: 2011-01-21Bibliographically approved

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