Energy wrinkles and phase-space folds of the last major merger

Autor: Vasily Belokurov, Eugene Vasiliev, Alis J Deason, Sergey E Koposov, Azadeh Fattahi, Adam M Dillamore, Elliot Y Davies, Robert J J Grand

Publikováno v: Monthly Notices of the Royal Astronomical Society, 2023, Vol.518(4), pp.6200-6215 [Peer Reviewed Journal]
Belokurov, V, Vasiliev, E, Deason, A J, Koposov, S E, Fattahi, A, Dillamore, A M, Davies, E Y & Grand, R J J 2023, ' Energy wrinkles and phase-space folds of the last major merger ', Monthly Notices of the Royal Astronomical Society, vol. 518, no. 4, pp. 6200-6215 . https://doi.org/10.1093/mnras/stac3436

Relying on the dramatic increase in the number of stars with full 6D phase-space information provided by the Gaia Data Release 3, we discover unambiguous signatures of phase-mixing in the stellar halo around the Sun. We show that for the stars likely

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::293b526458db8422226e6f1f92871d63
https://doi.org/10.1093/mnras/stac3436

Ironing the folds: The phase space chevrons of a GSE-like merger as a dark matter subhalo detector

Autor: Elliot Y Davies, Eugene Vasiliev, Vasily Belokurov, N Wyn Evans, Adam M Dillamore

Recent work uncovered features in the phase space of the Milky Way's stellar halo which may be attributed to the last major merger. When stellar material from a satellite is accreted onto its host, it phase mixes and appears finely substructured in p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8c13ccadbbfada5e3225c938ef0e3ee
http://arxiv.org/abs/2210.05679