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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/31717
Title: Charting the Galactic Acceleration Field. I. A Search for Stellar Streams with Gaia DR2 and EDR3 with Follow-up from ESPaDOnS and UVES
Authors: Ibata, Rodrigo
Malhan, Khyati
Martin, Nicolas
Aubert, Dominique
Famaey, Benoit
Bianchini, Paolo
Monari, Giacomo
Siebert, Arnaud
Thomas, Guillaume F.
BELLAZZINI, Michele 
BONIFACIO, PIERCARLO 
Caffau, Elisabetta
Renaud, Florent
Issue Date: 2021
Journal: THE ASTROPHYSICAL JOURNAL 
Number: 914
Issue: 2
First Page: 123
Abstract: We present maps of the stellar streams detected in the Gaia Data Release 2 (DR2) and Early Data Release 3 (EDR3) catalogs using the STREAMFINDER algorithm. We also report the spectroscopic follow-up of the brighter DR2 stream members obtained with the high-resolution CFHT/ESPaDOnS and VLT/UVES spectrographs as well as with the medium-resolution NTT/EFOSC2 spectrograph. Two new stellar streams that do not have a clear progenitor are detected in DR2 (named Hríd and Gunnthrá), and seven are detected in EDR3 (named Gaia-6 to Gaia-12). Several candidate streams are also identified. The software also finds very long tidal tails associated with the 15 globular clusters: NGC 288, NGC 1261, NGC 1851, NGC 2298, NGC 2808, NGC 3201, M68, ωCen, NGC 5466, Palomar 5, M5, NGC 6101, M92, NGC 6397, and NGC 7089. These stellar streams will be used in subsequent contributions in this series to chart the properties of the Galactic acceleration field on ~100 pc to ~100 kpc scales.
URI: http://hdl.handle.net/20.500.12386/31717
URL: https://iopscience.iop.org/article/10.3847/1538-4357/abfcc2
ISSN: 0004-637X
DOI: 10.3847/1538-4357/abfcc2
Bibcode ADS: 2021ApJ...914..123I
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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2012.05245.pdfpreprint2.99 MBAdobe PDFView/Open
Ibata_2021_ApJ_914_123.pdf[Administrators only]3.73 MBAdobe PDF
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