... The width of hydrogen lines is known to depend on the pressure in the photosphere, and then on the luminosity and effective temperature of the star. We have studied this dependence using the spectra of normal B stars from the databases by Jacoby et al., ... The resolution of Jacoby spectra (4.5А) coincides with the resolution of our BTA/UAGS spectra (4.4A). ... Dependence of full width FWZI of hydrogen lines on star spectral type and luminosity class. ...

Constraints on the variation of the fine structure constant from recent CMB measurements Graca Rocha Cavendish Astrophysics, University of Cambridge October 22, 2003 Recent CMB experiments such as Boomerang, MAXIMA, DASI, CBI, VSA among others and most recently WMAP seem to validate, apar t some intriguing discrepancies, the so-called concordance model of cosmology. ... DASI and WMAP detected the polarization of the CMB via the temperature polarization (scalar E-mode) cross power-spectrum (TE). ...

... Among these objects, the newly discovered Kuiper Belt Objects (KBO's) outside the orbit of planet Neptune (also known as Trans-Neptunian Objects) are of particular interest, but the meeting was also concerned with distant comets and some of the small moons of the outer planets. ... The Kuiper Belt is a zone outside the orbits of Neptune and Pluto in which icy solar system objects were expected to be present; the first was found in 1992. ... ESO Press Photo 41/98 . ... Send comments to <ips@eso.org> ...

... This file table3 82 660 Observed wavelengths, laboratory values and identifications -------------------------------------------------------------------------------- Byte-by-byte Description ... Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 I3 --- SpOrd Spectrum order 5- 12 F8.3 0.1nm SolLam Wavelength determination of all solar and telluric lines measurable on the ... Note (6): J: Junkes et al., ...

The monitoring of the optics quality of DIMM instrument V. Kornilov, B. Safonov May 24, 2010 1 Intro duction A quantitative theory of measurement of optical turbulence (OT) with Differential Image Motion Monitor (DIMM) is based on certain priori assumptions [1]. ... Bottom: behavior of the instrumental Strehl's number for the left (triangle to the left) and right (triangle to the right) DIMM images during the period of measurement the maintenance of an additional correction factor seems superfluous. ...

... A. M. Neminsky, P. N. Nikolaev, and D. V. Shovkun . ... The temperature dependence of the magnetic field penetration depth lambda ( T ) is determined down to 0.2 T c by the ac-susceptibility measurements on the Rb 3 C 60 fine powder with small, about 1 K, variation in the grains' superconducting transition temperatures. The lambda ( T ) temperature dependence is exponential at low temperatures, which allows us to determine the energy gap Delta 0 =1.7 k B T c . ...

ON THE IMPACT OF THE GALACTIC ABERRATION ON VLBI-DERIVED PRECESSION MODEL Z.M. MALKIN Pulkovo Observatory Pulkovskoe Ch. ... Corrections to adopted precession rate are usually computed from the linear trends in long-term time series of celestial pole offset (CPO), which are the differences between the measured and the theoretical coordinates of the celestial pole. ... CONCLUSIONS We have estimated the impact of GA on parameters of precession-nutation model derived from VLBI observations. ...

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