Výsledky vyhledávání - "Knauth, D. C."

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Parsec-scale Variations in the 7Li/6Li Isotope Ratio Toward IC 348 and the Per OB 2 Association

Autor: Knauth, D. C., Taylor, C. J., Ritchey, A. M., Federman, S. R., Lambert, D. L.

Publikováno v: 2017 ApJ 835 16

Measurements of the lithium isotopic ratio in the diffuse interstellar medium from high-resolution spectra of the LiI {\lambda}6708 resonance doublet have now been reported for a number of lines of sight. The majority of the results for the 7Li/6Li r

Externí odkaz: http://arxiv.org/abs/1704.00357

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Spectroscopic study of the long-period dust-producing WC7pd+O9 binary HD192641

Autor: Lefevre, L., Marchenko, S. V., Lepine, S., Moffat, A. F. J., Acker, A., Harries, T. J., Annuk, K., Bohlender, D. A., Demers, H., Grosdidier, Y., Hill, G. M., Morrison, N. D., Knauth, D. C., Skalkowski, G., Viti, S.

Publikováno v: Mon.Not.Roy.Astron.Soc. 360 (2005) 141-152

We present the results of an optical spectroscopic study of the massive Wolf-Rayet binary WR137. These data cover the dust-formation maximum in 1997. Combining all available measurements of radial velocities, we derive, for the first time, a spectros

Externí odkaz: http://arxiv.org/abs/astro-ph/0504475

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Spectroscopic Observations of the Delta Scorpii Binary during Its Recent Periastron Passage

Autor: Miroshnichenko, A. S., Fabregat, J., Bjorkman, K. S., Knauth, D. C., Morrison, N. D., Tarasov, A. E., Reig, P., Negueruela, I., Blay, P.

The bright star delta Sco has been considered a typical B0-type object for many years. Spectra of the star published prior to 1990 showed no evidence of emission, but only of short-term line profile variations attributed to nonradial pulsations. Spec

Externí odkaz: http://arxiv.org/abs/astro-ph/0106492

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