Results 31 to 40 of about 210,924 (322)
A million binaries from Gaia eDR3: sample selection and validation of Gaia parallax uncertainties [PDF]
, 2021 We construct from Gaia eDR3 an extensive catalog of spatially resolved binary stars within $\approx$ 1 kpc of the Sun, with projected separations ranging from a few au to 1 pc. We estimate the probability that each pair is a chance alignment empirically,
K. El-Badry, H. Rix, T. Heintz
semanticscholar +1 more source
Handle with Care. Transition, Translocalism and Experimentalism for a Green Democracy
Tecnoscienza, 2022 Commentary to the Lecture “Ecological Transition: What It Is and How to Do It. Community Technoscience and Green Democracy”, by Andrea Ghelfi and Dimitris Papadopoulos (this issue).
Luigi Pellizzoni
doaj +1 more source
Open Astronomy, 2021 We introduce the application of the clustering algorithm to the preliminary compiled list of probable wide pairs of co-moving stars. The main aim of such development is a possibility of unsupervised blind search of coeval loose stellar structures over ...
Sapozhnikov Sergei, Kovaleva Dana
doaj +1 more source
Gaia Data Release 2. Summary of the contents and survey properties [PDF]
, 2018 We present the second Gaia data release, Gaia DR2, consisting of astrometry, photometry, radial velocities, and information on astrophysical parameters and variability, for sources brighter than magnitude 21.
A. Brown +452 more
semanticscholar +1 more source
Estimating Distance from Parallaxes. IV. Distances to 1.33 Billion Stars in Gaia Data Release 2 [PDF]
Astronomical Journal, 2018 For the vast majority of stars in the second Gaia data release, reliable distances cannot be obtained by inverting the parallax. A correct inference procedure must instead be used to account for the nonlinearity of the transformation and the asymmetry of
C. Bailer-Jones +4 more
semanticscholar +1 more source
Cosmic Distances Calibrated to 1% Precision with Gaia EDR3 Parallaxes and Hubble Space Telescope Photometry of 75 Milky Way Cepheids Confirm Tension with ΛCDM [PDF]
, 2020 We present an expanded sample of 75 Milky Way Cepheids with Hubble Space Telescope (HST) photometry and Gaia EDR3 parallaxes, which we use to recalibrate the extragalactic distance ladder and refine the determination of the Hubble constant.
A. Riess +6 more
semanticscholar +1 more source
Selection principles for Gaia [PDF]
Journal of Theoretical Biology, 2022 The Gaia hypothesis considers the life-environment coupled system as a single entity that acts to regulate and maintain habitable conditions on Earth. In this paper we discuss three mechanisms which could potentially lead to Gaia: Selection by Survival, Sequential Selection and Entropic Hierarchy.
Rudy Arthur, Arwen E. Nicholson
openaire +4 more sources
Proceedings of the International Astronomical Union, 2017 AbstractThe Archive is the main Gaia data distribution hub. The contents of DR1 are briefly reviewed and the data structures discussed. The system architecture, based on Virtual Observatory standards, is also presented, together with the extensions that allow e.g. authenticated access, persistent uploads and table sharing.
Mora, Alcione +7 more
openaire +4 more sources
StarHorse results for spectroscopic surveys and Gaia DR3: Chrono-chemical populations in the solar vicinity, the genuine thick disk, and young alpha-rich stars [PDF]
Astronomy & Astrophysics, 2023 The Gaia mission has provided an invaluable wealth of astrometric data for more than a billion stars in our Galaxy. The synergy between Gaia astrometry, photometry, and spectroscopic surveys give us comprehensive information about the Milky Way.
A. Queiroz +18 more
semanticscholar +1 more source
Studia Gilsoniana, 2020 Bruno Latour’s latest book, Down to Earth, argues that the Earth itself must “ground” philosophical modernity and provide a “ground” for thinking about globalism and the problems of the globalist agenda. In this review I find the use of the Earth, and of
Jason Morgan
doaj +1 more source