Nyx stream explained

In astronomy, the Nyx stream is a proposed stellar stream that wraps around the Milky Way galaxy, relatively close to the sun. About 500 stars have been identified in this stream from the Gaia DR2.^[1] Elemental abundances of the most likely stellar members are consistent with the stream being a high velocity component of the Milky Way's thick disk, rather than having an extragalactic origin.^[2]

See also

• List of stellar streams

External links

• Comparing Nyx (purple stars) to the footprint of current spectroscopic surveys (gray) Sky plot
• Evidence for a vast prograde stellar stream in the solar vicinity 6 July 2020
• A Vast Stream of Flowing Stars Is Evidence of The Milky Way's Violent History MICHELLE STARR 6 JULY 2020

Notes and References

1. Evidence for a Vast Prograde Stellar Stream in the Solar Vicinity. Lina. Necib. Bryan. Ostdiek. Mariangela. Lisanti. Timothy. Cohen. Marat. Freytsis. Shea. Garrison-Kimmel. Philip F.. Hopkins. Andrew. Wetzel. Robyn. Sanderson. Nature Astronomy . 2020 . 4 . 11 . 1078 . 10.1038/s41550-020-1131-2 . 1907.07190. 2020NatAs...4.1078N. 197430957 .
2. The GALAH Survey: No Chemical Evidence of an Extragalactic Origin for the Nyx Stream . 1 . Zucker . Daniel B. . Simpson . Jeffrey D. . Martell . Sarah L. . Lewis . Geraint F. . Casey . Andrew R. . Ting . Yuan-Sen . Horner . Jonathan . Nordlander . Thomas . Wyse . Rosemary F. G. . Zwitter . Tomaž . Bland-Hawthorn . Joss . Buder . Sven . Asplund . Martin . De Silva . Gayandhi M. . D'Orazi . Valentina . Freeman . Ken C. . Hayden . Michael R. . Kos . Janez . Lin . Jane . Lind . Karin . Schlesinger . Katharine J. . Sharma . Sanjib . Stello . Dennis . The Astrophysical Journal Letters . 912 . 2 . id. L30 . May 2021 . 10.3847/2041-8213/abf7cd . free . 2104.08684 . 2021ApJ...912L..30Z .