Hyades tidal tails revealed by Gaia DR2
Within a 200 pc sphere around the Sun, we search for the Hyades tidal tails in the <i>Gaia<i/> DR2 dataset.<i>Methods<i/>. We used a modified convergent-point method to search for stars with space velocities close to the space velocity of the Hyades cluster.<i>Results&l...
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| Main Authors: | , , |
|---|---|
| Format: | Article (Journal) Editorial |
| Language: | English |
| Published: |
04 January 2019
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| In: |
Astronomy and astrophysics
Year: 2019, Volume: 621 |
| ISSN: | 1432-0746 |
| DOI: | 10.1051/0004-6361/201834608 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1051/0004-6361/201834608 Verlag, Volltext: https:/articles/aa/abs/2019/01/aa34608-18/aa34608-18.html |
| Author Notes: | Siegfried Röser, Elena Schilbach, and Bertrand Goldman |
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| 520 | |a Within a 200 pc sphere around the Sun, we search for the Hyades tidal tails in the <i>Gaia<i/> DR2 dataset.<i>Methods<i/>. We used a modified convergent-point method to search for stars with space velocities close to the space velocity of the Hyades cluster.<i>Results<i/>. We find a clear indication for the existence of the Hyades tidal tails, a leading tail extending up to 170 pc from the centre of the Hyades with 292 stars (36 contaminants), and a trailing 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. | ||
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