A5093047808- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Gamma-ray bursts and supernovae
- Astro and Planetary Science
- Geomagnetism and Paleomagnetism Studies
- Scientific Research and Discoveries
- Relativity and Gravitational Theory
- Cosmology and Gravitation Theories
- Earth Systems and Cosmic Evolution
- Geophysics and Gravity Measurements
- Complex Systems and Time Series Analysis
- Astrophysical Phenomena and Observations
- Pulsars and Gravitational Waves Research
- Astrophysics and Star Formation Studies
- Distributed and Parallel Computing Systems
- Galaxies: Formation, Evolution, Phenomena
Osservatorio Astrofisico di Torino
2024
University of Turin
2024
ABSTRACT Thanks to Gaia DR2, we proved for the first time that a general relativistic Milky Way rotation curve is statistically indistinguishable from its state-of-the-art dark matter analogue. Those results supported ansatz gravitational dragging can explain observed flatness of with consistent radial density profile. To challenge again such scenario, select 719 143 young disc stars within |z| < 1 kpc and up R ≃ 19 DR3 providing much larger sample high-quality astrometric...
With the release of Gaia DR3, we extend comparison between dynamical models for Milky Way rotation curve initiated in previous work. Utilising astrometric and spectro-photometric data 719143 young disc stars within $|z|<1$ kpc up to $R \simeq 19$ kpc, investigate accuracy MOND $\Lambda$CDM frameworks addition previously studied models, such as classical one with a Navarro-Frenk-White dark matter halo general relativistic model. We find that all including $\Lambda$CDM, are statistically...
Abstract With the release of Gaia DR3, we extend comparison between dynamical models for Milky Way rotation curve initiated in previous work. Utilising astrometric and spectro-photometric data 719143 young disc stars within | z < 1 kpc up to R ≃ 19 kpc, investigate accuracy MOND ΛCDM frameworks addition previously studied models, such as classical one with a Navarro-Frenk-White dark matter halo general relativistic model. We find that all including ΛCDM, are statistically equivalent...