Zobrazeno 1 - 10
of 1 686
pro vyhledávání: '"Letokhov, V. S."'
Publikováno v:
Physica Scripta; May2012, Vol. 85 Issue 5, p1-50, 50p
The Si III] 1892A intercombination line shows an anomalously high intensity in spectra of the radiation-rich Weigelt blobs in the vicinity of Eta Carinae. The line disappears during the 100 days long spectral events occurring every 5.5 years. The aim
Externí odkaz:
http://arxiv.org/abs/astro-ph/0602365
The spectrum of Eta Carinae and its ejecta shows slow variations over a period of 5.5 years. However, the spectrum changes drastically on a time scale of days once every period called the 'spectral event'. We report on variations in the narrow emissi
Externí odkaz:
http://arxiv.org/abs/astro-ph/0503410
Autor:
Johansson, S., Letokhov, V. S.
Publikováno v:
New Astron. 10 (2005) 361-369
We consider the possibility of measuring the true width of the narrow Fe II optical lines observed in spectra of the Weigelt blobs in the vicinity of Eta Carinae. The lines originate as a result of stimulated amplification of spontaneous emission of
Externí odkaz:
http://arxiv.org/abs/astro-ph/0501246
Autor:
Johansson, S., Letokhov, V. S.
Publikováno v:
Mon.Not.Roy.Astron.Soc. 364 (2005) 731-737
After the discovery of space masers based on OH radicals (Weaver et al, 1965) and H2O (Cheung et al, 1969) such microwave lasers have been found to work in more than 100 molecular species (Elitzur, 1992; Townes, 1997), as well as in highly excited H
Externí odkaz:
http://arxiv.org/abs/astro-ph/0409069
Publikováno v:
JETP Letters, Vol. 78, No.1, 2003, pp.8-12
New types of light fields localized in nanometer-sized regions of space were suggested and analyzed. The possibility of using these nanolocalized fields in atom optics for atom focusing and localization is discussed.
Externí odkaz:
http://arxiv.org/abs/quant-ph/0309191