منابع مشابه
Stis Uv Spectroscopy of Early B Supergiants in M31
We analyze STIS spectra in the 1150-1700 Å wavelength range obtained for six early B supergiants in the neighboring galaxy M31. Because of their likely high (nearly solar) abundance, these stars were originally chosen to be directly comparable to their Galactic counterparts, and represent a much-needed addition to our current sample of B-type supergiants, in our efforts to study the dependence ...
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We present multi-object spectroscopy of young, massive stars in the Local Group galaxy IC 1613. We provide the spectral classification and a detailed spectral catalog for 54 OBA stars in this galaxy. The majority of the photometrically selected sample is composed of Band A-type supergiants. The remaining stars include early O-type dwarfs and the only Wolf-Rayet star known in this galaxy. Among ...
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The quantitative analysis of low resolution spectra of A and B supergiants is used to determine a distance modulus of 24.99± 0.10 mag (995± 46 Kpc) Based on VLT observations for ESO Large Programme 171.D-0004.
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Analytical methods for quantitative enantioselective measurements are highly desirable in the life sciences. Existing technologies have disadvantages such as limited temporal resolution, the need for molecular labeling, or high experimental complexity. To overcome these limitations, this work presents a method based on conventional Raman spectroscopy. A systematic investigation of the key param...
متن کاملQuantitative Diffuse Reflectance Spectroscopy
In the field of biomedical optics, diffuse reflectance spectroscopy (DRS) is a frequently used technique for obtaining information about the optical properties of the medium under investigation. The method utilizes spectral difference between incident and backscattered light intensity for quantifying the underlying absorption and scattering processes that affects the light-medium interaction. I...
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ژورنال
عنوان ژورنال: Publications of the Astronomical Society of the Pacific
سال: 2003
ISSN: 0004-6280,1538-3873
DOI: 10.1086/373932