Observations of the Jupiter were carried out using a refined version of the stellar seismometer with a sensitivity of better than 50 cm/s. The observations...

Context. The present work deals with the detection of phase changes in an exoplanetary system. HD 46375 is a solar analog known to host a non-transiting Saturn...

We discuss recent laboratory experiments with rotating superconductors and show that three so far unexplained experimentally observed effects (anomalous...

Aims: We aim to constrain the origin of the non-detection of the metastable He I triplet at ≈10 830 Å obtained for the hot Jupiter WASP-80b. Methods: We measure...

This paper puts forward a possible new indicator of the presence of moderately advanced civilizations on transiting exoplanets. The idea is to examine the...

We propose that several short-duration events observed in past stellar occultations by Chiron were produced by ring material. Some similarities between these...

Recently some correlations between low cloud cover and solar activity have been reported in the literature. In this paper we show how the flux of GCR is found...

From optical photometry we show that SDSS J121258.25-012310.1 is a new eclipsing, post common-envelope binary with an orbital period of 8.06 h and an eclipse...

Context. The standard prescription of angular momentum loss in compact binaries assumes magnetic braking to be very efficient as long as the secondary star has...