Search Publications
Spi-OPS: Spitzer and CHEOPS confirm the near-polar orbit of MASCARA-1 b and reveal a hint of dayside reflection
Alonso, R.; Deleuil, M.; Erikson, A. +82 more
Context. The light curves of tidally locked hot Jupiters transiting fast-rotating, early-type stars are a rich source of information about both the planet and star, with full-phase coverage enabling a detailed atmospheric characterisation of the planet. Although it is possible to determine the true spin-orbit angle Ψ - a notoriously difficult para…
A3COSMOS: A census on the molecular gas mass and extent of main-sequence galaxies across cosmic time
Schinnerer, Eva; Liu, Daizhong; Kokorev, Vasily +6 more
Aims: We aim to constrain for the first time the mean mass and extent of the molecular gas of a mass-complete sample of normal > 1010 M⊙ star-forming galaxies at 0.4 < z < 3.6.
Methods: We apply an innovative uv-based stacking analysis to a large set of archival Atacama Large Millimeter/submillimeter Array …
Detection of the tidal deformation of WASP-103b at 3 σ with CHEOPS
Alonso, R.; Bouchy, F.; Deleuil, M. +80 more
Context. Ultra-short period planets undergo strong tidal interactions with their host star which lead to planet deformation and orbital tidal decay.
Aims: WASP-103b is the exoplanet with the highest expected deformation signature in its transit light curve and one of the shortest expected spiral-in times. Measuring the tidal deformation of th…
The star formation history of Upper Scorpius and Ophiuchus. A 7D picture: positions, kinematics, and dynamical traceback ages
Miret-Roig, N.; Bouy, H.; Alves, J. +3 more
Context. Understanding how star formation begins and propagates through molecular clouds is a fundamental but still open question. One major difficulty in addressing this question is the lack of precise 3D kinematics and age information for young stellar populations. Thanks to astrometry provided by Gaia, large spectroscopic surveys, and improved …
The IACOB project. VII. The rotational properties of Galactic massive O-type stars revisited
Herrero, A.; Simón-Díaz, S.; Barbá, R. H. +1 more
Context. Stellar rotation is of key importance in the formation process, the evolution, and the final fate of massive stars.
Aims: We perform a reassessment of the empirical rotational properties of Galactic massive O-type stars using the results from a detailed analysis of ground-based multi-epoch optical spectra obtained in the framework of…
The Gaia-ESO survey: Age-chemical-clock relations spatially resolved in the Galactic disc
Baratella, M.; Gilmore, G.; Montes, D. +33 more
Context. The last decade has seen a revolution in our knowledge of the Galaxy thanks to the Gaia and asteroseismic space missions and the ground-based spectroscopic surveys.
Aims: To complete this picture, it is necessary to map the ages of its stellar populations. During recent years, the dependence on time of abundance ratios involving slow…
GIARPS High-resolution Observations of T Tauri stars (GHOsT). IV. Accretion properties of the Taurus-Auriga young association
Munari, U.; Alcalá, J. M.; Manara, C. F. +9 more
Aims: In the framework of the GIARPS High-resolution Observations of T Tauri stars (GHOsT) project, we study the accretion properties of 37 classical T Tauri stars of the Taurus-Auriga star-forming region (SFR) with the aim of characterizing their relation with the properties of the central star, with jets and disk winds, and with the global …
Classical Cepheid period-Wesenheit-metallicity relation in the Gaia bands
Clementini, G.; Ripepi, V.; Molinaro, R. +7 more
Context. Classical Cepheids (DCEPs) represent a fundamental tool to calibrate the extragalactic distance scale. However, they are also powerful stellar population tracers in the context of Galactic studies. The forthcoming Data Release 3 of the Gaia mission will allow us to study, with unprecedented detail, the structure, the dynamics, and the che…
Euclid preparation. XVI. Exploring the ultra-low surface brightness Universe with Euclid/VIS
Altieri, B.; Cimatti, A.; Baccigalupi, C. +181 more
Context. While Euclid is an ESA mission specifically designed to investigate the nature of dark energy and dark matter, the planned unprecedented combination of survey area (∼15 000 deg2), spatial resolution, low sky-background, and depth also make Euclid an excellent space observatory for the study of the low surface brightness Univers…
HADES RV Programme with HARPS-N at TNG. XV. Planetary occurrence rates around early-M dwarfs
Rebolo, R.; Ribas, I.; Morales, J. C. +28 more
Aims: We present the complete Bayesian statistical analysis of the HArps-n red Dwarf Exoplanet Survey (HADES), which monitored the radial velocities of a large sample of M dwarfs with HARPS-N at TNG over the last 6 yr.
Methods: The targets were selected in a narrow range of spectral types from M0 to M3, 0.3 M⊙ < M★