Stokes inversion techniques are very powerful methods for obtaining information on the thermodynamic and magnetic properties of solar and stellar atmospheres...
BD+15 2940 and HD 233604: Two Giants with Planets Close to the Engulfment Zone
We report the discovery of planetary-mass companions to two red giants by the ongoing Penn State-Toruń Planet Search (PTPS) conducted with the 9.2 m Hobby...
BD+48 740—Li Overabundant Giant Star with a Planet: A Case of Recent Engulfment?
We report the discovery of a unique object, BD+48 740, a lithium overabundant giant with A(Li) = 2.33 ± 0.04 (where A(Li) = log n Li/n H + 12), that exhibits...
Be Abundances in Cool Main-sequence Stars with Exoplanets
We present new Ultraviolet and Visual Echelle Spectrograph (UVES) spectra of a sample of 15 cool unevolved stars with and without detected planetary companions...
Beam asymmetry Σ measurements of π- photoproduction on neutrons
The -beam asymmetry Σ in the photoproduction of negative pions on quasi-free neutrons in a deuterium target was measured at the Grenoble Anneau Accelerateur...
Beam Asymmetry Σ of the π- Photoproduction off Neutron
We present the analysis of data performed in order to identify the events of the γ + n → π- + p reaction obtained by bombarding a liquid Deuterium target with a...
Beam-plasma interaction in fast ignition nuclear fusion: Hot-spot properties and gains for different initial plasma temperatures
The main objective of this work is to characterize relevant properties of the hot spots obtained in the interaction between ion beams of V23 + and a spherical...
Behaviour of Comet 21P/Giacobini-Zinner during the 1998 perihelion
Comet 21P/Giacobini-Zinner was observed from Nov. 8 to Dec. 10, 1998. Pre- and post-perihelion CCD images of the gas (CN, C2) and dust (green and red continua)...
Benchmark stars, benchmark spectrographs. Detailed spectroscopic comparison of ESPRESSO, PEPSI, and HARPS data for Gaia benchmark stars
Context. Gaia benchmark stars are selected to be calibration stars for different spectroscopic surveys. Very high-quality and homogeneous spectroscopic data for...