| |  Online-Ressource |
|---|
| Verfasst von: | Montegriffo, Paolo [VerfasserIn]  |
|---|
| | Andrae, René [VerfasserIn] |
|---|
| | Fouesneau, Morgan [VerfasserIn] |
|---|
| | Biermann, Michael [VerfasserIn] |
|---|
| | Bailer-Jones, Coryn A. L. [VerfasserIn] |
|---|
| | Bastian, Ulrich [VerfasserIn] |
|---|
| | Gracia-Abril, Gonzalo [VerfasserIn] |
|---|
| | Altmann, Martin [VerfasserIn] |
|---|
| | Jordan, Stefan [VerfasserIn] |
|---|
| | Löffler, Wolfgang [VerfasserIn] |
|---|
| | Rybizki, Jan [VerfasserIn] |
|---|
| | Balog, Zoltan [VerfasserIn] |
|---|
| | Peloso, Eduardo Fernandez del [VerfasserIn] |
|---|
| | Hauser, Marcus [VerfasserIn] |
|---|
| | Juaristi Campillo, Jon [VerfasserIn] |
|---|
| | Payne-Wardenaar, Stefan Erik [VerfasserIn] |
|---|
| | Rix, Hans-Walter [VerfasserIn] |
|---|
| | Sagristà Sellés, Antoni [VerfasserIn] |
|---|
| Titel: | Gaia data release 3 |
|---|
| Titelzusatz: | the galaxy in your preferred colours; synthetic photometry from Gaia low-resolution spectra |
|---|
| Körperschaft: | Gaia collaboration [VerfasserIn] |
|---|
| Verf.angabe: | GAIA Collaboration: P. Montegriffo, R. Andrae, M. Fouesneau, M. Biermann, C.a.L. Bailer-Jones, U. Bastian, G. Gracia-Abril, M. Altmann, S. Jordan, W. Löffler, J. Rybizki, Z. Balog, E.F. del Peloso, M. Hauser, J. Juaristi Campillo, S. Payne-Wardenaar, H.-W. Rix, A. Sagristà Sellés ... [und 426 weitere] |
|---|
| E-Jahr: | 2023 |
|---|
| Jahr: | 16 June 2023 |
|---|
| Umfang: | 22 S. |
|---|
| Fussnoten: | Gesehen am 08.04.2024 |
|---|
| Titel Quelle: | Enthalten in: Astronomy and astrophysics |
|---|
| Ort Quelle: | Les Ulis : EDP Sciences, 1969 |
|---|
| Jahr Quelle: | 2023 |
|---|
| Band/Heft Quelle: | 674(2023) vom: Juni, Artikel-ID A33, Seite 1-22 |
|---|
| ISSN Quelle: | 1432-0746 |
|---|
| Abstract: | 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 obtained from these spectra for any passband fully enclosed in this wavelength range. We describe how synthetic photometry can be obtained from XP spectra, illustrating the performance that can be achieved under a range of different conditions - for example passband width and wavelength range - as well as the limits and the problems affecting it. Existing top-quality photometry can be reproduced within a few per cent over a wide range of magnitudes and colour, for wide and medium bands, and with up to millimag accuracy when synthetic photometry is standardised with respect to these external sources. Some examples of potential scientific application are presented, including the detection of multiple populations in globular clusters, the estimation of metallicity extended to the very metal-poor regime, and the classification of white dwarfs. A catalogue providing standardised photometry for ≃2.2 × 10 exp 8 sources in several wide bands of widely used photometric systems is provided Gaia Synthetic Photometry Catalogue; GSPC) as well as a catalogue of ≃10 exp 5 white dwarfs with DA/non-DA classification obtained with a Random Forest algorithm (Gaia Synthetic Photometry Catalogue for White Dwarfs; GSPC-WD). |
|---|
| DOI: | doi:10.1051/0004-6361/202243709 |
|---|
| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1051/0004-6361/202243709 |
|---|
| | Volltext: https://www.aanda.org/articles/aa/abs/2023/06/aa43709-22/aa43709-22.html |
|---|
| | DOI: https://doi.org/10.1051/0004-6361/202243709 |
|---|
| Datenträger: | Online-Ressource |
|---|
| Sprache: | eng |
|---|
| K10plus-PPN: | 188528361X |
|---|
| Verknüpfungen: | → Zeitschrift |
|---|
Gaia data release 3 / Montegriffo, Paolo [VerfasserIn]; 16 June 2023 (Online-Ressource)
