Proper motions in a sunspot group with a δ-configuration and close to the solar disk center have been studied by employing local correlation tracking techniques...
On the Molar Extinction Coefficient and Integrated Molar Absorptivity of the Infrared Absorption Spectra of C-60 and C-70 Fullerenes
The molar extinction coefficients, known also as molar absorptivity epsilon, of C-60 and C-70 fullerenes infrared absorption spectra were determined at room...
The aim of our study is to use dynamical simulations to explore the influence of two important dynamical bar parameters, bar strength and bar pattern speed on...
Context: Local reductions of the stellar velocity dispersion in the central regions of galaxies are known as sigma-drops (σ-drops). Knowing the origin of these...
Context. The planetary nebula luminosity function (PNLF) is a standard candle that comprises a key rung on the extragalactic distance ladder. The method is...
On the multiperiodicity of the δ Scuti star BDS 1269A (VW Arietis). The fifth campaign of STEPHI network in 1993.
This paper reports on the fifth STEPHI multi-site photometric campaign in 1993 devoted to the δ Scuti star BDS 1269A (VW Ari). The observation yielded a data...
On the multiplicity of ALMA Compact Array counterparts of far-infrared bright quasars
We present ALMA Atacama Compact Array (ACA) 870 μm continuum maps of 28 infrared-bright SDSS quasars with Herschel/SPIRE detections at redshifts 2-4, the...
On the nature of candidate luminous blue variables in M 33
Context. Luminous blue variables (LBVs) are a class of highly unstable stars that have been proposed to play a critical role in massive stellar evolution as...