Ruling out the Orbital Decay of the WASP-43b Exoplanet
We present 15 new transit observations of the exoplanet WASP-43b in the i‧, g‧, and R filters with the 1.0 m telescopes of Las Cumbres Observatory Global...
RXCJ1111.6+4050 galaxy cluster: Observational evidence of a transitional fossil group
We present a detailed kinematical and dynamical study of the galaxy cluster RXCJ1111.6+4050 (RXCJ1111), at z = 0.0756 using 104 new spectroscopic redshifts of...
RXJ 0921+4529: A Binary Quasar or a Gravitational Lens?
We report the new spectroscopic observations of the gravitational lens RXJ 021+4529 with the multi-mode focal reducer SCORPIO of the SAO RAS 6 m telescope. The...
S Ori J053825.4-024241: a classical T Tauri-like object at the substellar boundary
We present a spectrophotometric analysis of S Ori J053825.4-024241, a candidate member close to the substellar boundary of the young (1-8 Myr), nearby (~360 pc)...
s-process enrichment in the planetary nebula NGC 3918. Results from deep echelle spectrophotometry
The chemical content of the planetary nebula NGC 3918 is investigated through deep, high-resolution (R ˜ 40 000) UVES (Ultraviolet-Visual Echelle Spectrograph)...
We present time-resolved optical spectroscopy of the cataclysmic variable S193. The emission lines are remarkably similar to those of V795 Her and exhibit high...
S266: a ring nebula around a Galactic B[e] supergiant?
A narrow-band Hα image and high-resolution spectroscopy have been obtained in order to investigate the nature of S266 and its central star MWC 137. The analysis...
S4N: A spectroscopic survey of stars in the solar neighborhood. The Nearest 15 pc
We report the results of a high-resolution spectroscopic survey of all the stars more luminous than M_V = 6.5 mag within 14.5 pc from the Sun. The Hipparcos...
Sacred Architecture Orientation across the Mediterranean: A Comparative Statistical Analysis
The idea of temporality and how this concept is introduced in the ritual domain could be investigated in past cultures through measurements of the orientation...