The Hyades tidal tails revealed by Gaia DR2

• Verfasst von: Röser, Siegfried [VerfasserIn]
• Verfasst von: Schilbach, Elena [VerfasserIn]
• Verfasst von: Goldman, Bertrand [VerfasserIn]
• Titel: The Hyades tidal tails revealed by Gaia DR2
• Verf.angabe: Siegfried Röser, Elena Schilbach, and Bertrand Goldman
• E-Jahr: 2018
• Jahr: 9 Nov 2018
• Umfang: 4 S.
• Fussnoten: Gesehen am 16.10.2020
• Titel Quelle: Enthalten in: De.arxiv.org
• Ort Quelle: [S.l.] : Arxiv.org, 1991
• Jahr Quelle: 2018
• Band/Heft Quelle: (2018) Artikel-Nummer 1811.03845, 4 Seiten
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Astrophysics - Astrophysics of Galaxies
• Sach-SW: Astrophysics - Solar and Stellar Astrophysics
• K10plus-PPN: 1586543806

Abstract

Within a 200 pc sphere around the Sun we search for the Hyades tidal tails in the Gaia DR2 dataset. We use a modified convergent point method to search for stars with space velocities close to the space velocity of the Hyades cluster. We find a clear indication for the existence of the Hyades tidal tails, a preceding tail extending up to 170 pc from the centre of the Hyades with 292 stars (36 contaminants), and a following tail up to 70 pc with 237 stars (32 contaminants). A comparison with an N-body model of the cluster and its tails shows remarkably good coincidence. Five white dwarfs are found in the tails.