Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.4k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.9k papers
- Czech Technical University in PragueCZ1.8k papers
- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicCZ1.8k papers
- European Organization for Nuclear ResearchCH1.7k papers
- Heidelberg UniversityDE1.7k papers
- The University of TokyoJP1.7k papers
- University of CopenhagenDK1.7k papers
- University of BirminghamGB1.6k papers
- University of TsukubaJP1.6k papers
- University of LiverpoolGB1.6k papers
30 papers · 2 filters
Gaia Early Data Release 3: The Gaia Catalogue of Nearby Stars
Gaia Collaboration, R. L. Smart, L. M. Sarro +420
We produce a clean and well-characterised catalogue of objects within 100\,pc of the Sun from the \G\ Early Data Release 3. We characterise the catalogue through comparisons to the…
The GALAH+ Survey: A New Library of Observed Stellar Spectra Improves Radial Velocities and Hints at Motions within M67
Tomaž Zwitter, Janez Kos, Sven Buder +25
GALAH+ is a magnitude-limited survey of high resolution stellar spectra obtained by the HERMES spectrograph at the Australian Astronomical Observatory. Its third data release provi…
The Photospheric Temperatures of Betelgeuse during the Great Dimming of 2019/2020: No New Dust Required
Graham M Harper, Edward F Guinan, Richard Wasatonic +1
The processes that shape the extended atmospheres of red supergiants (RSGs), heat their chromospheres, create molecular reservoirs, drive mass loss, and create dust remain poorly u…
The GALAH survey: Chemical homogeneity of the Orion complex
Janez Kos, Joss Bland-Hawthorn, Sven Buder +17
Due to its proximity, the Orion star forming region is often used as a proxy to study processes related to star formation and to observe young stars in the environment they were bo…
On the cosmic origin of Fluorine
Nils Ryde
The cosmic origin of fluorine, the ninth element of the Periodic Table, is still under debate. The reason for this fact is the large difficulties in observing stellar diagnostic li…
The Similarity of Abundance Ratio Trends and Nucleosynthetic Patterns in the Milky Way Disk and Bulge
Emily Griffith, David H. Weinberg, Jennifer A. Johnson +9
We compare abundance ratio trends in a sample of Milky Way bulge stars ( kpc) from the Apache Point Observatory Galactic Evolution Experiment (APOGEE)…
The Gaia-ESO Survey: Calibrating the lithium-age relation with open clusters and associations. I. Cluster age range and initial membership selections
M. L. Gutiérrez Albarrán, D. Montes, M. Gómez Garrido +33
Previous studies of open clusters have shown that lithium depletion is not only strongly age dependent but also shows a complex pattern with other parameters that is not yet unders…
Hinode/EIS measurements of active region magnetic fields
E. Landi, R. Hutton, T. Brage +1
The present work illustrates the potential of a new diagnostic technique that allows the measurement of the coronal magnetic field strength in solar active regions utilizing a hand…
The Gaia-ESO Survey: Spectroscopic-asteroseismic analysis of K2 stars in Gaia-ESO
C. C. Worley, P. Jofre, B. Rendle +33
The extensive stellar spectroscopic datasets that are available for studies in Galactic Archeaology thanks to, for example, the Gaia-ESO Survey, now benefit from having a significa…
The Gaia-ESO Survey: Galactic evolution of lithium at high metallicity
S. Randich, L. Pasquini, E. Franciosini +20
Reconstructing the Galactic evolution of lithium (Li) is the main tool used to constrain the source(s) of Li enrichment in the Galaxy. Recent results have suggested a decline in Li…
The Gaia-ESO survey: 3D NLTE abundances in the open cluster NGC 2420 suggest atomic diffusion and turbulent mixing at the origin of chemical abundance variations
Ekaterina Semenova, Maria Bergemann, Morgan Deal +10
Atomic diffusion and mixing processes in stellar interiors influence the structure and the surface composition of stars. Some of these processes cannot yet be modelled from the fir…
Gaia and Hubble unveil the kinematics of stellar populations in the Type II globular clusters ω Centauri and M 22
G. Cordoni, A. P. Milone, A. F. Marino +8
The origin of multiple stellar populations in Globular Clusters (GCs) is one of the greatest mysteries of modern stellar astrophysics. N-body simulations suggest that the present-d…
The Gaia-ESO Survey: Membership probabilities for stars in 32 open clusters from 3D kinematics
R. J. Jackson, R. D. Jeffries, N. J. Wright +16
The Gaia-ESO Survey (GES) observed many open clusters as part of its programme to spectroscopically characterise the various Milky Way populations. GES spectroscopy and Gaia astrom…
ALMA and VLA reveal the lukewarm chromospheres of the nearby red supergiants Antares and Betelgeuse
E. O'Gorman, G. M. Harper, K. Ohnaka +8
We first present spatially resolved ALMA and VLA continuum observations of the early-M red supergiant Antares to search for the presence of a chromosphere at radio wavelengths. We…
The Gaia-ESO Survey: an extremely Li-rich giant in the globular cluster NGC 1261
N. Sanna, E. Franciosini, E. Pancino +16
Lithium rich stars in globular clusters are rare. In fact, only 14 have been found so far, in different evolutionary phases from dwarfs to giants. Different mechanisms have been pr…
The GALAH Survey: A new constraint on cosmological lithium and Galactic lithium evolution from warm dwarf stars
Xudong Gao, Karin Lind, Anish M. Amarsi +22
Lithium depletion and enrichment in the cosmos is not yet well understood. To help tighten constraints on stellar and Galactic evolution models, we present the largest high-resolut…
The GALAH survey: Characterization of emission-line stars with spectral modelling using autoencoders
Klemen Čotar, Tomaž Zwitter, Gregor Traven +11
We present a neural network autoencoder structure that is able to extract essential latent spectral features from observed spectra and then reconstruct a spectrum from those featur…
Weighing stars from birth to death: mass determination methods across the HRD
Aldo Serenelli, Achim Weiss, Conny Aerts +31
The mass of a star is the most fundamental parameter for its structure, evolution, and final fate. It is particularly important for any kind of stellar archaeology and characteriza…
The GALAH survey: Multiple stars and our Galaxy. I. A comprehensive method for deriving properties of FGK binary stars
G. Traven, S. Feltzing, T. Merle +24
Binary stellar systems form a large fraction of the Galaxy's stars. They are useful as laboratories for studying the physical processes taking place within stars, and must be corre…
Runaway and walkaway stars from the ONC with Gaia DR2
Christina Schoettler, Jos de Bruijne, Eero Vaher +1
Theory predicts that we should find fast, ejected (runaway) stars of all masses around dense, young star-forming regions. -body simulations show that the number and distribution…
SOFIA-EXES Observations of Betelgeuse during the Great Dimming of 2019/2020
Graham M. Harper, Curtis N. DeWitt, Matthew J. Richter +6
In 2019 October Betelgeuse began a decline in V-band brightness that went beyond the minimum expected from its quasi-periodic ~420 day cycle, becoming the faintest in recorded phot…
Observed binary populations reflect the Galactic history. Explaining the orbital period-mass ratio relation in wide hot subdwarf binaries
Joris Vos, Alexey Bobrick, Maja Vuckovic
Wide hot subdwarf B (sdB) binaries with main-sequence companions are outcomes of stable mass transfer from evolved red giants. The orbits of these binaries show a strong correlatio…
The Gaia-ESO Survey: detection and characterization of single line spectroscopic binaries
T. Merle, M. Van der Swaelmen, S. Van Eck +26
Recent and on-going large ground-based multi-object spectroscopic surveys allow to significantly increase the sample of spectroscopic binaries to get insight into their statistical…
The not so simple stellar system Omega Cen. II. Evidence in support of a merging scenario
Annalisa Calamida, Alice Zocchi, Giuseppe Bono +7
We present multi-band photometry covering 5° 5°across Cen collected with the Dark Energy Camera, combined to Hubble Space Telescope and Wide Field Imager data fo…