Hercules stream

From Wikipedia, the free encyclopedia
Jump to: navigation, search

Hercules stream is a large moving group of stars that are trailing behind the local rate of galactic rotation and are heading further out in the disk. Members of this stream may sometimes be referred to as Hercules stars. This stream was first hypothesized to be the remnants of a cluster of stars that has evaporated over time, becoming gravitationally unbound. Alternatively, the Hercules stream may have been created as a resonant effect of the galactic bar at the center of the Milky Way.[1] This stream of stars has a space velocity component V equal to about −40 km/s.[2]

References[edit]

  1. ^ Famaey, B.; Siebert, A.; Jorissen, A. (2008). "On the age heterogeneity of the Pleiades, Hyades, and Sirius moving groups". Astronomy & Astrophysics. 483 (2): 453–459. arXiv:0712.1470Freely accessible. Bibcode:2008A&A...483..453F. doi:10.1051/0004-6361:20078979. 
  2. ^ Arifyanto, M. I.; Fuchs, B. (2006-04-02). "Fine structure in the phase space distribution of nearby subdwarfs". Astronomy & Astrophysics. 449 (2): 533–538. arXiv:astro-ph/0512296Freely accessible. Bibcode:2006A&A...449..533A. doi:10.1051/0004-6361:20054355. 
 3.^ Bobylev V.V., Bajkova A.T. "Hercules and Wolf 630 stellar streams and galactic bar kinematics". Astronomy Letters, Volume 42, Issue 4, pp.228-239. arXiv:1603.00610. http://adsabs.harvard.edu/abs/2016AstL...42..228B. DOI:http://dx.doi.org/10.1134/S1063773716040010