Spectrograms of five bright northern central stars of planetary nebulae (CSPN) are compiled in order to provide spectral descriptions of these stars, with...
-
PublicationSpectral and radial velocity studies of 5 northern central stars of planetary nebulae
-
PublicationTESS Delivers Five New Hot Giant Planets Orbiting Bright Stars from the Full-frame Images
We present the discovery and characterization of five hot and warm Jupiters—TOI-628 b (TIC 281408474; HD 288842), TOI-640 b (TIC 147977348), TOI-1333 b (TIC...
-
PublicationTESS-Keck Survey. V. Twin Sub-Neptunes Transiting the Nearby G Star HD 63935
We present the discovery of two nearly identically sized sub-Neptune transiting planets orbiting HD 63935, a bright (V = 8.6 mag), Sun-like (Teff = 5560 K) star...
-
PublicationThe cataclysmic variable SS Cygni
A general panorama of SS Cygni is presented. The paper first describes the CV cataclysmic variables and the current theories which attempt to describe their...
-
PublicationThe contribution to population in ellipticals of blue stragglers - A test of their origin
An observational test of the binary hypothesis for the origin of the blue straggler (BS) stars has been performed searching for radial velocity variables among...
-
PublicationThe galactic wind in the circum-nuclear zone of NGC 6946
Using the H-II region H-alpha emission detected in high-resolution long slit spectra of the normal spiral NGC 6946 out to 6 kpc from the center, and along 8...
-
PublicationThe Hades RV Programme With Harps-N@TNG GJ 3998: An Early M-Dwarf Hosting a System of Super-Earths
Many efforts to detect Earth-like planets around low-mass stars are presently devoted in almost every extra-solar planetsearch. M dwarfs are considered ideal...
-
PublicationThe kinematics and morphology of NGC 520: One, two, or three galaxies
The peculiar galaxy NGC 520 (Arp 157) is often interpreted as an interacting pair of galaxies. The identification of the two bulges and overall morphology of...
-
PublicationThe local interstellar medium toward the center of Loop I
The present study of the local insterstellar medium toward the center of Loop I analyzes optical and UV spectra of nearby stars within the l = 310-330 deg, b =...