Explanipedia

Discovery of a dormant 33 solar-mass black hole in pre-release Gaia astrometry Open

P. Panuzzo, T. Mazeh, F. Arenou, B. Holl, E. Caffau , et al. · 2024

Context. Gravitational waves from black-hole (BH) merging events have revealed a population of extra-galactic BHs residing in short-period binaries with masses that are higher than expected based on most stellar evolution models – and also…

GaiaData Release 3 Open

F. Arenou, C. Babusiaux, M. A. Barstow, S. Faigler, A. Jorissen , et al. · 2022

Context. The Gaia DR3 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…

Gaia Data Release 3: Summary of the content and survey properties Open

Gaia Collaboration, A. Vallenari, A. G. A. Brown, T. Prusti, J. H. J. de Bruijne , et al. · 2022

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 …

GaiaData Release 3 Open

F. De Angeli, M. Weiler, P. Montegriffo, D. W. Evans, M. Riello , et al. · 2022

Context. Blue (BP) and Red (RP) Photometer low-resolution spectral data are one of the exciting new products in Gaia Data Release 3 ( Gaia DR3). These data have also been used to derive astrometry and integrated photometry in Gaia Early Da…

GaiaData Release 3 Open

O. L. Creevey, L. M. Sarro, A. Lobel, E. Pancino, R. Andrae , et al. · 2022

Context.Gaia Data Release 3 (DR3) provides a wealth of new data products for the astronomical community to exploit, including astrophysical parameters for half a billion stars. In this work, we demonstrate the high quality of these data pr…

Gaia Data Release 3 Open

R. Drimmel, M. Romero-Gómez, L. Chemin, P. Ramos, E. Poggio , et al. · 2022

Context. With the most recent Gaia data release, the number of sources with complete 6D phase space information (position and velocity) has increased to well over 33 million stars, while stellar astrophysical parameters are provided for mo…

GaiaData Release 3 Open

Gaia Collaboration, P. Montegriffo, M. Bellazzini, F. De Angeli, R. Andrae , et al. · 2022

Gaia Data Release 3 provides novel flux-calibrated low-resolution spectrophotometry for ≃220 million sources in the wavelength range 330 nm ≤ λ ≤ 1050 nm (XP spectra). Synthetic photometry directly tied to a flux in physical units can be o…

GaiaData Release 3 Open

A. Recio–Blanco, G. Kordopatis, P. de Laverny, P. A. Palicio, A. Spagna , et al. · 2022

Context. The motion of stars has been used to reveal details of the complex history of the Milky Way, in constant interaction with its environment. Nevertheless, to reconstruct the Galactic history puzzle in its entirety, the chemo-physica…

Gaia Data Release 3 Open

M. Schultheis, H. Zhao, T. Zwitter, D. J. Marshall, R. Drimmel , et al. · 2022

Context. Diffuse interstellar bands (DIBs) are common interstellar absorption features in spectroscopic observations but their origins remain unclear. DIBs play an important role in the life cycle of the interstellar medium (ISM) and can a…

Gaia Data Release 3 Open

C. A. L. Bailer-Jones, D. Teyssier, L. Delchambre, C. Ducourant, D. Garabato , et al. · 2022

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…

GaiaData Release 3 Open

J. De Ridder, V. Ripepi, C. Aerts, L. Palaversa, L. Eyer , et al. · 2022

Context. The third Gaia data release provides photometric time series covering 34 months for about 10 million stars. For many of those stars, a characterisation in Fourier space and their variability classification are also provided. This …

Gaia Data Release 3 Open

A. Vallenari, A. G. A. Brown, T. Prusti, J. H. J. de Bruijne, F. Arenou , et al. · 2022

Context. We present the third data release of the European Space Agency’s Gaia mission, Gaia DR3. This release includes a large variety of new data products, notably a much expanded radial velocity survey and a very extensive astrophysical…

GaiaData Release 3 Open

P. Montegriffo, F. De Angeli, R. Andrae, M. Riello, E. Pancino , et al. · 2022

Context.Gaia Data Release 3 contains astrometry and photometry results for about 1.8 billion sources based on observations collected by the European Space Agency (ESA) Gaia satellite during the first 34 months of its operational phase (the…

Gaia Early Data Release 3 Open

S. A. Klioner, L. Lindegren, F. Mignard, J. Hernández, M. Ramos-Lerate , et al. · 2022

Context. Gaia -CRF3 is the celestial reference frame for positions and proper motions in the third release of data from the Gaia mission, Gaia DR3 (and for the early third release, Gaia EDR3, which contains identical astrometric results). …

Gaia Early Data Release 3: The celestial reference frame (Gaia-CRF3) Open

Gaia Collaboration, S. A. Klioner, L. Lindegren, F. Mignard, J. Hernández , et al. · 2022

Gaia-CRF3 is the celestial reference frame for positions and proper motions\nin the third release of data from the Gaia mission, Gaia DR3 (and for the early\nthird release, Gaia EDR3, which contains identical astrometric results). The\nref…

Gaia Data Release 2. Observations of solar system objects Open

F. Spoto, P. Tanga, F. Mignard, J. Berthier, B. Carry , et al. · 2021

Context. The Gaia spacecraft of the European Space Agency (ESA) has been securing observations of solar system objects (SSOs) since the beginning of its operations. Data Release 2 (DR2) contains the observations of a selected sample of 14,…

Gaia Data Release 2. Observational Hertzsprung-Russell diagrams Open

C. Babusiaux, F. van Leeuwen, M. A. Barstow, C. Jordi, A. Vallenari , et al. · 2021

Context. Gaia Data Release 2 provides high-precision astrometry and three-band photometry for about 1.3 billion sources over the full sky. The precision, accuracy, and homogeneity of both astrometry and photometry are unprecedented.: Aims.…

Gaia Data Release 2. Variable stars in the colour-absolute magnitude diagram Open

L. Eyer, L. Rimoldini, M. Audard, Richard I. Anderson, K. Nienartowicz , et al. · 2021

The ESA Gaia mission provides a unique time-domain survey for more than 1.6 billion sources with G â‰² 21 mag. Aims. We showcase stellar variability in the Galactic colour-absolute magnitude diagram (CaMD). We focus on pulsating, eruptive,…

Gaia Early Data Release 3 Open

A. G. A. Brown, A. Vallenari, T. Prusti, J. H. J. de Bruijne, C. Babusiaux , et al. · 2021

ERRATUMThis article is an erratum for:[https://doi.org/10.1051/0004-6361/202039657]

Gaia Early Data Release 3: Photometric content and validation Open

M. Riello, F. De Angeli, D. W. Evans, P. Montegriffo, J. M. Carrasco , et al. · 2020

Gaia Early Data Release 3 contains astrometry and photometry results for about 1.8 billion sources based on observations collected by the ESA Gaia satellite during the first 34 months of operations. This paper focuses on the photometric co…

GaiaEarly Data Release 3 Open

M. Riello, F. De Angeli, D. W. Evans, P. Montegriffo, J. M. Carrasco , et al. · 2020

Context. Gaia Early Data Release 3 ( Gaia EDR3) contains astrometry and photometry results for about 1.8 billion sources based on observations collected by the European Space Agency Gaia satellite during the first 34 months of its operatio…

Gaia Data Release 2 Open

A. Helmi, F. van Leeuwen, P. J. McMillan, D. Massari, T. Antoja , et al. · 2020

\n Contains fulltext :\n 225636.pdf (Publisher’s version ) (Open Access)\n

Gaia Data Release 2 Open

A. Helmi, F. van Leeuwen, P. J. McMillan, D. Massari, T. Antoja , et al. · 2020

\n Contains fulltext :\n 219285.pdf (Publisher’s version ) (Open Access)\n

Gaia Data Release 2. Mapping the Milky Way disc kinematics Open

D. Katz, T. Antoja, M. Romero-Gómez, R. Drimmel, C. Reylé , et al. · 2018

Context. The second Gaia data release (Gaia DR2) contains high-precision positions, parallaxes, and proper motions for 1.3 billion sources as well as line-of-sight velocities for 7.2 million stars brighter than G(RVS) = 12 mag. Both sample…

Gaia Data Release 2: processing of the photometric data Open

M. Riello, F. De Angeli, D. W. Evans, G. Busso, N. C. Hambly , et al. · 2018

CONTEXT. The second Gaia data release is based on 22 months of mission data with an average of 0.9 billion individual CCD observations per day. A data volume of this size and granularity requires a robust and reliable but still flexible sy…

Gaia Data Release 2: Observational Hertzsprung-Russell diagrams Open

Gaia Collaboration, C. Babusiaux, F. van Leeuwen, M. A. Barstow, C. Jordi , et al. · 2018

We highlight the power of the Gaia DR2 in studying many fine structures of the Hertzsprung-Russell diagram (HRD). Gaia allows us to present many different HRDs, depending in particular on stellar population selections. We do not aim here f…

Gaia Data Release 2: Photometric content and validation Open

D. W. Evans, M. Riello, F. De Angeli, J. M. Carrasco, P. Montegriffo , et al. · 2018

Aims. We describe the photometric content of the second data release of the Gaia project (Gaia DR2) and its validation along with the quality of the data. Methods. The validation was mainly carried out using an internal analysis of the pho…

GaiaData Release 2 Open

A. Helmi, F. van Leeuwen, P. J. McMillan, D. Massari, T. Antoja , et al. · 2018

Context. Aims. The goal of this paper is to demonstrate the outstanding quality of the second data release of the Gaia mission and its power for constraining many different aspects of the dynamics of the satellites of the Milky Way. We foc…

Gaia Data Release 2 Open

Gaia Collaboration, A. G. A. Brown, A. Vallenari, T. Prusti, J. de Bruijne , et al. · 2018

Context. The Gaia Data Release 2 (DR2) contains the first release of radial velocities complementing the kinematic data of a sample of about 7 million relatively bright, late-type stars. Aims. This paper provides a detailed description of …

C. Cacciari YOU? Author Swipe