We analyse the planetary nebulae (PNe) population of the Small Magellanic Cloud (SMC), based on evolutionary models of stars with metallicities in the range 10...
Planetary nebulae of the Large Magellanic Cloud. I. A multiwavelength analysis
Context. Planetary nebulae (PNe) have three main components: a central star (CS), ionized gas, and dust in the nebula. Each contains critical chemical...
Planetary nebulae seen with TESS: Discovery of new binary central star candidates from Cycle 1
Context. It has become clear in recent years that binarity plays a crucial role in many aspects of planetary nebulae (PNe), particularly with regard to the...
Planetary nebulae seen with TESS: New and revisited short-period binary central star candidates from Cycles 1 to 4
Context. High-precision and high-cadence photometric surveys such as Kepler or TESS are making huge progress not only in the detection of new extrasolar planets...
Planetary nebulae: the universal mass-metallicity relation for Local Group dwarf galaxies and the chemistry of NGC 205
Here we study 16 planetary nebulae (PNe) in the dwarf irregular galaxy NGC 205 by using Gemini Multi-Object Spectrographs (GMOS@Gemini) spectra to derive their...
Planetary system around LTT 1445A unveiled by ESPRESSO: Multiple planets in a triple M-dwarf system
We present radial velocity follow-up obtained with ESPRESSO of the M-type star LTT 1445A (TOI-455), for which a transiting planet b with an orbital period of 5...
Planetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization
We report the detection of a transiting Earth-size planet around GJ 357, a nearby M2.5 V star, using data from the Transiting Exoplanet Survey Satellite (TESS)...
Planetary system detection by estimating the covariance of coronagraphic lucky images
In this paper, we review two different methods to increase image contrast and propose the combination of both to detect faint companions surrounding a host star...
Context: CoRoT is a pioneering space mission devoted to the analysis of stellar variability and the photometric detection of extrasolar planets. Aims: We...