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First Results from a Study of DIBs with Thousands of High-Quality Massive-Star Spectra

  • J. Maíz Apellániz (a1), A. Sota (a1), R. H. Barbá (a2), N. I. Morrell (a3), A. Pellerin (a4), E. J. Alfaro (a1) and S. Simón-Díaz (a5)...

Abstract

We are using five different surveys to compile the largest sample of diffuse interstellar band (DIB) measurements ever collected. GOSSS is obtaining intermediate-resolution blue-violet spectroscopy of ~2500 OB stars, of which 60% have already been observed and processed. The other four surveys have already collected multi-epoch high-resolution optical spectroscopy of 700 OB stars with different telescopes, including the 9 m Hobby-Eberly Telescope in McDonald Observatory. Some of our stars are highly-extinguished targets for which no good-quality optical spectra have ever been published. For all of the targets in our sample we have obtained accurate spectral types, measured non-DIB ISM lines, and compiled information from the literature to calculate the extinction. Here we present the first results of the project, the properties of twenty DIBs in the 4100-5500 Å range. We clearly detect a couple of previously elusive DIBs at 4170 Å and 4591 Å; the latter could have coronene and ovalene cations as carriers.

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References

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Aceituno, J., et al. 2012, A&A 552, A31
Barbá, R. H., et al. 2010, Revista mexicana de astronomía y astrofísica (serie de conf.) 38, 30
Ehrenfreund, P., et al. 1995, A&A 299, 213
Jenniskens, P. & Désert, F.-X. 1994, A&AS 106, 39
Knoechel, G. & Moffat, A. F. J. 1982, A&A 110, 263
MaízApellániz, J. Apellániz, J., et al. 2011, Highlights of Spanish Astrophysics VI, 467
Maíz Apellániz, J., et al. 2012, ASP Conference Series 465, 484
Simón-Díaz, S., Castro, N., García, M., & Herrero, A. 2011a, IAU Symposium 272, 310
Simón-Díaz, S., et al. 2011b, arXiv 1109.2665
Snow, T. P., Zukowski, D., & Massey, P. 2002, ApJ 578, 877
Sota, A., et al. 2011, ApJS 193, 24
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First Results from a Study of DIBs with Thousands of High-Quality Massive-Star Spectra

  • J. Maíz Apellániz (a1), A. Sota (a1), R. H. Barbá (a2), N. I. Morrell (a3), A. Pellerin (a4), E. J. Alfaro (a1) and S. Simón-Díaz (a5)...

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