CERN Accelerating science

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1.
Gaia Data Release 3 - Stellar multiplicity, a teaser for the hidden treasure / Gaia Collaboration
Context.TheGaiaDR3 catalogue contains, for the first time, about 800 000 solutions with either orbital elements or trend parameters for astrometric, spectroscopic, and eclipsing binaries, and combinations of these three.Aims.With this paper, we aim to illustrate the huge potential of this large non-single-star catalogue.Methods.Using the orbital solutions and models of the binaries, we have built a catalogue of tens of thousands of stellar masses or lower limits thereof, some with consistent flux ratios. Properties concerning the completeness of the binary catalogues are discussed, statistical features of the orbital elements are explained, and a comparison with other catalogues is performed.Results.Illustrative applications are proposed for binaries across the Hertzsprung-Russell Diagram (HRD). [...]
arXiv:2206.05595.- 2023-06 - 57 p. - Published in : Astron. Astrophys. 674 (2023) A34 Fulltext: PDF;
2.
Euclid preparation. Sensitivity to non-standard particle dark matter model / Euclid Collaboration
The Euclid mission of the European Space Agency will provide weak gravitational lensing and galaxy clustering surveys that can be used to constrain the standard cosmological model and its extensions, with an opportunity to test the properties of dark matter beyond the minimal cold dark matter paradigm. [...]
arXiv:2406.18274 ; TTK-24-26.
- 31.
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Euclid. I. Overview of the Euclid mission / Euclid Collaboration
The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main ingredients, dark matter and dark energy, remains unknown. [...]
arXiv:2405.13491.
- 94.
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4.
Euclid. IV. The NISP Calibration Unit / Euclid Collaboration
The near-infrared calibration unit (NI-CU) on board Euclid's Near-Infrared Spectrometer and Photometer (NISP) is the first astronomical calibration lamp based on light-emitting diodes (LEDs) to be operated in space. [...]
arXiv:2405.13494.
- 21.
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Gaia Data Release 3 - Summary of the content and survey properties / Gaia Collaboration
Context. We present the third data release of the European Space Agency’s Gaia mission, Gaia DR3. [...]
arXiv:2208.00211.- 2023-06-01 - 22 p. - Published in : Astron. Astrophys. 674 (2023) A1 Fulltext: PDF;
6.
Gaia Data Release 3 - Exploring and mapping the diffuse interstellar band at 862 nm / Gaia Collaboration
Context. Diffuse interstellar bands (DIBs) are common interstellar absorption features in spectroscopic observations but their origins remain unclear. [...]
arXiv:2206.05536.- 2023-06-01 - 25 p. - Published in : Astron. Astrophys. 674 (2023) A40 Fulltext: PDF;
7.
Science with the Einstein Telescope: a comparison of different designs / Branchesi, Marica (GSSI, Aquila ; Gran Sasso) ; Maggiore, Michele (Geneva U., Dept. Theor. Phys. ; Geneva U.) ; Alonso, David (Oxford U.) ; Badger, Charles (King's Coll. London) ; Banerjee, Biswajit (GSSI, Aquila ; Gran Sasso) ; Beirnaert, Freija (Gent U.) ; Belgacem, Enis (Geneva U.) ; Bhagwat, Swetha (Rome U. ; Birmingham U.) ; Boileau, Guillaume (U. Antwerp (main) ; ARTEMIS, Nice) ; Borhanian, Ssohrab (Jena U., TPI) et al.
The Einstein Telescope (ET), the European project for a third-generation gravitational-wave detector, has a reference configuration based on a triangular shape consisting of three nested detectors with 10 km arms, where in each arm there is a `xylophone' configuration made of an interferometer tuned toward high frequencies, and an interferometer tuned toward low frequencies and working at cryogenic temperature. Here, we examine the scientific perspectives under possible variations of this reference design. [...]
arXiv:2303.15923; ET-0084A-23.- 2023-07-28 - 197 p. - Published in : JCAP 2307 (2023) 068 Fulltext: document - PDF; 2303.15923 - PDF;
8.
Gaia Data Release 3: Chemical cartography of the Milky Way / Gaia Collaboration
Gaia DR3 opens a new era of all-sky spectral analysis of stellar populations thanks to the nearly 5.6 million stars observed by the RVS and parametrised by the GSP-spec module. The all-sky Gaia chemical cartography allows a powerful and precise chemo-dynamical view of the Milky Way with unprecedented spatial coverage and statistical robustness. [...]
arXiv:2206.05534.- 2023-06 - 49 p. - Published in : Astron. Astrophys. 674 (2023) A38 Fulltext: 2206.05534 - PDF; Publication - PDF;
9.
STE-QUEST: Space Time Explorer and QUantum Equivalence principle Space Test / STE-QUEST Collaboration
An M-class mission proposal in response to the 2021 call in ESA's science programme with a broad range of objectives in fundamental physics, which include testing the Equivalence Principle and Lorentz Invariance, searching for Ultralight Dark Matter and probing Quantum Mechanics..
arXiv:2211.15412 ; CERN-TH-2022-202.
- 78 p.
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10.
Gaia Data Release 3: The extragalactic content / Gaia Collaboration
The Gaia Galactic survey mission is designed and optimized to obtain astrometry, photometry, and spectroscopy of nearly two billion stars in our Galaxy. Yet as an all-sky multi-epoch survey, Gaia also observes several million extragalactic objects down to a magnitude of G~21 mag. [...]
arXiv:2206.05681.- 2023-06-01 - 33 p. - Published in : Astron. Astrophys. 674 (2023) A41 Fulltext: 2206.05681 - PDF; document - PDF;

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