A. C. Lanzafame
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View article: Magnetic Activity and Differential Rotation of HIP12653<sup>*</sup>
Magnetic Activity and Differential Rotation of HIP12653<sup>*</sup> Open
We present a spectroscopic and photometric study of HIP12653 to investigate its magnetic cycle and differential rotation. Using HARPS archival spectra matched with MARCS-AMBRE theoretical templates, we derive the stellar parameters ( T eff…
View article: Rotation of young solar-type stars as seen by <i>Gaia</i> and K2
Rotation of young solar-type stars as seen by <i>Gaia</i> and K2 Open
Context . Accurate surface rotation measurements are crucial to estimate stellar ages and improve our understanding of stellar rotational evolution. Comparisons of datasets obtained from different space missions on common targets represent…
View article: The <i>Gaia</i>-ESO Survey: projected rotational velocities of B stars in the Carina Nebula
The <i>Gaia</i>-ESO Survey: projected rotational velocities of B stars in the Carina Nebula Open
The Carina Nebula is an active star-forming region with several open clusters rich in massive OB stars, thus making it an optimal target for studying stellar properties such as rotation for large samples of these early-type stars. We studi…
View article: The Gaia-ESO Survey: Calibrating the lithium-age relation with open clusters and associations. II. Expanded cluster sample and final membership selection
The Gaia-ESO Survey: Calibrating the lithium-age relation with open clusters and associations. II. Expanded cluster sample and final membership selection Open
The Li abundance observed in pre-main sequence and main sequence late-type stars is strongly age-dependent, but also shows a complex pattern depending on several parameters, such as rotation, chromospheric activity and metallicity. The bes…
View article: <i>Gaia</i>Focused Product Release: A catalogue of sources around quasars to search for strongly lensed quasars
<i>Gaia</i>Focused Product Release: A catalogue of sources around quasars to search for strongly lensed quasars Open
Context . Strongly lensed quasars are fundamental sources for cosmology. The Gaia space mission covers the entire sky with the unprecedented resolution of 0.18″ in the optical, making it an ideal instrument to search for gravitational lens…
View article: The <i>Gaia</i>-ESO Survey: Calibrating the lithium–age relation with open clusters and associations
The <i>Gaia</i>-ESO Survey: Calibrating the lithium–age relation with open clusters and associations Open
Context. The Li abundance observed in pre-main sequence and main sequence late-type stars is strongly age-dependent, but also shows a complex pattern depending on several parameters, such as rotation, chromospheric activity, and metallicit…
View article: The <i>Gaia</i>-ESO Survey: The DR5 analysis of the medium-resolution GIRAFFE and high-resolution UVES spectra of FGK-type stars
The <i>Gaia</i>-ESO Survey: The DR5 analysis of the medium-resolution GIRAFFE and high-resolution UVES spectra of FGK-type stars Open
The Gaia -ESO Survey is an European Southern Observatory (ESO) public spectroscopic survey that targeted 10 5 stars in the Milky Way covering the major populations of the disk, bulge and halo. The observations were made using FLAMES on the…
View article: The Gaia-ESO Survey: The DR5 analysis of the medium-resolution GIRAFFE and high-resolution UVES spectra of FGK-type stars
The Gaia-ESO Survey: The DR5 analysis of the medium-resolution GIRAFFE and high-resolution UVES spectra of FGK-type stars Open
The Gaia-ESO Survey is an European Southern Observatory (ESO) public spectroscopic survey that targeted $10^5$ stars in the Milky Way covering the major populations of the disk, bulge and halo. The observations were made using FLAMES on th…
View article: Gaia Focused Product Release: A catalogue of sources around quasars to search for strongly lensed quasars
Gaia Focused Product Release: A catalogue of sources around quasars to search for strongly lensed quasars Open
Context. Strongly lensed quasars are fundamental sources for cosmology. The Gaia space mission covers the entire sky with the unprecedented resolution of $0.18$" in the optical, making it an ideal instrument to search for gravitational len…
View article: Gaia Focused Product Release: Sources from Service Interface Function image analysis -- Half a million new sources in omega Centauri
Gaia Focused Product Release: Sources from Service Interface Function image analysis -- Half a million new sources in omega Centauri Open
Gaia's readout window strategy is challenged by very dense fields in the sky. Therefore, in addition to standard Gaia observations, full Sky Mapper (SM) images were recorded for nine selected regions in the sky. A new software pipeline exp…
View article: Gaia Focused Product Release: Radial velocity time series of long-period variables
Gaia Focused Product Release: Radial velocity time series of long-period variables Open
The third Gaia Data Release (DR3) provided photometric time series of more than 2 million long-period variable (LPV) candidates. Anticipating the publication of full radial-velocity (RV) in DR4, this Focused Product Release (FPR) provides …
View article: <i>Gaia</i> Focused Product Release: Sources from Service Interface Function image analysis
<i>Gaia</i> Focused Product Release: Sources from Service Interface Function image analysis Open
Context. Gaia ’s readout window strategy is challenged by very dense fields in the sky. Therefore, in addition to standard Gaia observations, full Sky Mapper (SM) images were recorded for nine selected regions in the sky. A new software pi…
View article: The <i>Gaia</i>-ESO Survey: Homogenisation of stellar parameters and elemental abundances
The <i>Gaia</i>-ESO Survey: Homogenisation of stellar parameters and elemental abundances Open
The Gaia -ESO Survey is a public spectroscopic survey that targeted ≳10 5 stars covering all major components of the Milky Way from the end of 2011 to 2018, delivering its final public release in May 2022. Unlike other spectroscopic survey…
View article: The Gaia-ESO Survey: homogenisation of stellar parameters and elemental abundances
The Gaia-ESO Survey: homogenisation of stellar parameters and elemental abundances Open
The Gaia-ESO Survey is a public spectroscopic survey that has targeted $\gtrsim10^5$ stars covering all major components of the Milky Way from the end of 2011 to 2018, delivering its public final release in May 2022. Unlike other spectrosc…
View article: <i>Gaia</i>Data Release 3
<i>Gaia</i>Data Release 3 Open
Context. Gaia has been in operations since 2014, and two full data releases (DR) have been delivered so far: DR1 in 2016 and DR2 in 2018. The third Gaia data release expands from the early data release (EDR3) in 2020, which contained the f…
View article: <i>Gaia</i>Data Release 3
<i>Gaia</i>Data Release 3 Open
Context. Gaia DR3 contains 1.8 billion sources with G -band photometry, 1.5 billion of which with G BP and G RP photometry, complemented by positions on the sky, parallax, and proper motion. The median number of field-of-view transits in t…
View article: The<i>Gaia</i>-ESO Survey: Probing the lithium abundances in old metal-rich dwarf stars in the solar vicinity
The<i>Gaia</i>-ESO Survey: Probing the lithium abundances in old metal-rich dwarf stars in the solar vicinity Open
Context. Lithium (Li) is a fragile element that is produced in a variety of sites but can also be very easily depleted in stellar photospheres. Radial migration has been reported to explain the decrease in the upper envelope of Li measurem…
View article: Gaia Data Release 3: All-sky classification of 12.4 million variable sources into 25 classes
Gaia Data Release 3: All-sky classification of 12.4 million variable sources into 25 classes Open
Gaia DR3 contains 1.8 billion sources with G-band photometry, 1.5 billion of which with BP and RP photometry, complemented by positions on the sky, parallax, and proper motion. The median number of field-of-view transits in the three photo…
View article: The Gaia-ESO Survey: Probing the lithium abundances in old metal-rich dwarf stars in the Solar vicinity
The Gaia-ESO Survey: Probing the lithium abundances in old metal-rich dwarf stars in the Solar vicinity Open
We test a scenario in which radial migration could affect the Li abundance pattern of dwarf stars in the solar neighbourhood. This may confirm that the Li abundance in these stars can not serve as a probe for the Li abundance in the inters…
View article: <i>Gaia</i>Data Release 3
<i>Gaia</i>Data Release 3 Open
Context. The Gaia third Data Release (GDR3) presents a catalogue of 474 026 stars (detected by processing a sample of about 30 million late-type stars) with variability induced by magnetic activity. About 430 000 of these stars are newly d…
View article: <i>Gaia</i>Data Release 3
<i>Gaia</i>Data Release 3 Open
Context. The third Gaia data release ( Gaia DR3) contains, beyond the astrometry and photometry, dispersed light for hundreds of millions of sources from the Gaia prism spectra (BP and RP) and the spectrograph (RVS). This data release open…
View article: Ultracool dwarfs in <i>Gaia</i> DR3
Ultracool dwarfs in <i>Gaia</i> DR3 Open
Context. Previous Gaia data releases offered the opportunity to uncover ultracool dwarfs (UCDs) through astrometric, rather than purely photometric, selection. The most recent, the third data release (DR3), offers in addition the opportuni…
View article: The <i>Gaia</i>-ESO Survey: Lithium measurements and new curves of growth
The <i>Gaia</i>-ESO Survey: Lithium measurements and new curves of growth Open
Context. The Gaia-ESO Survey (GES) is a large public spectroscopic survey that was carried out using the multi-object FLAMES spectrograph at the Very Large Telescope. The survey provides accurate radial velocities, stellar parameters, and …
View article: The Gaia-ESO Survey: Lithium measurements and new curves of growth
The Gaia-ESO Survey: Lithium measurements and new curves of growth Open
The Gaia-ESO Survey (GES) is a large public spectroscopic survey that was carried out using the multi-object FLAMES spectrograph at the Very Large Telescope. The survey provides accurate radial velocities, stellar parameters, and elemental…
View article: <i>Gaia</i> Data Release 3
<i>Gaia</i> Data Release 3 Open
Context. The Gaia Radial Velocity Spectrometer (RVS) provides the unique opportunity of a spectroscopic analysis of millions of stars at medium resolution ( λ /Δ λ ∼ 11 500) in the near-infrared (845−872 nm). This wavelength range includes…
View article: The Gaia-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products
The Gaia-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products Open
The Gaia-ESO Public Spectroscopic Survey is an ambitious project designed to obtain astrophysical parameters and elemental abundances for 100,000 stars, including large representative samples of the stellar populations in the Galaxy, and a…
View article: The <i>Gaia</i>-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products
The <i>Gaia</i>-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products Open
Context. The Gaia-ESO Public Spectroscopic Survey is an ambitious project designed to obtain astrophysical parameters and elemental abundances for 100 000 stars, including large representative samples of the stellar populations in the Gala…
View article: Linking Small-scale Solar Wind Properties with Large-scale Coronal Source Regions through Joint Parker Solar Probe–Metis/Solar Orbiter Observations
Linking Small-scale Solar Wind Properties with Large-scale Coronal Source Regions through Joint Parker Solar Probe–Metis/Solar Orbiter Observations Open
The solar wind measured in situ by Parker Solar Probe in the very inner heliosphere is studied in combination with the remote-sensing observation of the coronal source region provided by the METIS coronagraph aboard Solar Orbiter. The coro…
View article: Gaia Data Release 3: Summary of the content and survey properties
Gaia Data Release 3: Summary of the content and survey properties Open
We present the third data release of the European Space Agency's Gaia mission, GDR3. The GDR3 catalogue is the outcome of the processing of raw data collected with the Gaia instruments during the first 34 months of the mission by the Gaia …
View article: <i>Gaia</i>Data Release 3
<i>Gaia</i>Data Release 3 Open
Gaia Data Release 3 contains a wealth of new data products for the community. Astrophysical parameters are a major component of this release, and were produced by the Astrophysical parameters inference system (Apsis) within the Gaia Data P…