The correction of the wavefront in optical systems implies the use of wavefront sensors, software, and auxiliary optical systems. We propose evaluated the...

2S 1711-339: In ATEL #233 the absorbed X-ray flux of 2S 1711-339 was incorrectly given as 2e-15 ergs cm-2 s-1 (0.3-7.0 keV). The correct value obtained by using...

In ATEL #871 the fluxes were incorrectly quoted. All the fluxes should be multiplied by 1E-10 in order to obtain the correct values. The quoted luminosities are...

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A study of the correlation of the morphology of a complete sample of 255 galactic planetary nebulae (PNe) with their nebular parameters is presented here...

We have obtained (in BVRI filters) the structural parameters of four disk galaxies, spanning a range of different morphological types. We believe the parameters...

We review some of the statistical properties of higher-dimensional superstatistical stochastic models. As an example, we analyse the stochastic properties of a...

We have found a large amount of 6Li in the atmosphere of the star HD 82943 which harbors two planets. From the amount of lithium in the star's atmosphere, we...