Matches in SemOpenAlex for { <https://semopenalex.org/work/W4310291202> ?p ?o ?g. }
- W4310291202 endingPage "136" @default.
- W4310291202 startingPage "136" @default.
- W4310291202 abstract "Abstract We combine Gaia early data release 3 astrometry with accurate photometry and utilize a probabilistic mixture model to measure the systemic proper motion of 52 dwarf spheroidal (dSph) satellite galaxies of the Milky Way (MW). For the 46 dSphs with literature line-of-sight velocities we compute orbits in both a MW and a combined MW + Large Magellanic Cloud (LMC) potential and identify Car II, Car III, Hor I, Hyi I, Phx II, and Ret II as likely LMC satellites. 40% of our dSph sample has a >25% change in pericenter and/or apocenter with the MW + LMC potential. For these orbits, we use a Monte Carlo sample for the observational uncertainties for each dSph and the uncertainties in the MW and LMC potentials. We predict that Ant II, Boo III, Cra II, Gru II, and Tuc III should be tidally disrupting by comparing each dSph's average density relative to the MW density at its pericenter. dSphs with large ellipticity (CVn I, Her, Tuc V, UMa I, UMa II, UMi, Wil 1) show a preference for their orbital direction to align with their major axis even for dSphs with large pericenters. We compare the dSph radial orbital phase to subhalos in MW-like N -body simulations and infer that there is not an excess of satellites near their pericenter. With projections of future Gaia data releases, we find that dSph's orbital precision will be limited by uncertainties in the distance and/or MW potential rather than in proper motion precision. Finally, we provide our membership catalogs to enable community follow-up." @default.
- W4310291202 created "2022-11-30" @default.
- W4310291202 creator A5017684904 @default.
- W4310291202 creator A5047455553 @default.
- W4310291202 creator A5054850759 @default.
- W4310291202 date "2022-11-29" @default.
- W4310291202 modified "2023-10-14" @default.
- W4310291202 title "Proper Motions, Orbits, and Tidal Influences of Milky Way Dwarf Spheroidal Galaxies" @default.
- W4310291202 cites W1515149315 @default.
- W4310291202 cites W1540119444 @default.
- W4310291202 cites W1580369740 @default.
- W4310291202 cites W1587149551 @default.
- W4310291202 cites W1830361707 @default.
- W4310291202 cites W1968639462 @default.
- W4310291202 cites W1971292707 @default.
- W4310291202 cites W1974512835 @default.
- W4310291202 cites W1975191314 @default.
- W4310291202 cites W1975424825 @default.
- W4310291202 cites W1981945647 @default.
- W4310291202 cites W1998424813 @default.
- W4310291202 cites W1998612190 @default.
- W4310291202 cites W2011169849 @default.
- W4310291202 cites W2011301426 @default.
- W4310291202 cites W2016888075 @default.
- W4310291202 cites W2017140620 @default.
- W4310291202 cites W2025846400 @default.
- W4310291202 cites W2026737806 @default.
- W4310291202 cites W2027611485 @default.
- W4310291202 cites W2029537692 @default.
- W4310291202 cites W2033933651 @default.
- W4310291202 cites W2036186127 @default.
- W4310291202 cites W2039445384 @default.
- W4310291202 cites W2056827990 @default.
- W4310291202 cites W2061939373 @default.
- W4310291202 cites W2062834115 @default.
- W4310291202 cites W2064986197 @default.
- W4310291202 cites W2066419911 @default.
- W4310291202 cites W2076859359 @default.
- W4310291202 cites W2080724433 @default.
- W4310291202 cites W2081526990 @default.
- W4310291202 cites W2084216078 @default.
- W4310291202 cites W2085417021 @default.
- W4310291202 cites W2088994101 @default.
- W4310291202 cites W2089718630 @default.
- W4310291202 cites W2090341422 @default.
- W4310291202 cites W2095934069 @default.
- W4310291202 cites W2108783996 @default.
- W4310291202 cites W2121480729 @default.
- W4310291202 cites W2135625048 @default.
- W4310291202 cites W2137425677 @default.
- W4310291202 cites W2140137154 @default.
- W4310291202 cites W2146292423 @default.
- W4310291202 cites W2161741300 @default.
- W4310291202 cites W2168420728 @default.
- W4310291202 cites W2170011509 @default.
- W4310291202 cites W2181230108 @default.
- W4310291202 cites W2198852561 @default.
- W4310291202 cites W2221167480 @default.
- W4310291202 cites W2239052299 @default.
- W4310291202 cites W2261709274 @default.
- W4310291202 cites W2286418970 @default.
- W4310291202 cites W2295457071 @default.
- W4310291202 cites W2297997173 @default.
- W4310291202 cites W2301571137 @default.
- W4310291202 cites W2327211162 @default.
- W4310291202 cites W2343140613 @default.
- W4310291202 cites W2359505960 @default.
- W4310291202 cites W2405688133 @default.
- W4310291202 cites W2413703541 @default.
- W4310291202 cites W2413988422 @default.
- W4310291202 cites W2485876312 @default.
- W4310291202 cites W2514945585 @default.
- W4310291202 cites W2535697027 @default.
- W4310291202 cites W2554177926 @default.
- W4310291202 cites W2554240634 @default.
- W4310291202 cites W2564821084 @default.
- W4310291202 cites W2573445935 @default.
- W4310291202 cites W2574409480 @default.
- W4310291202 cites W2578279709 @default.
- W4310291202 cites W2601671815 @default.
- W4310291202 cites W2735226754 @default.
- W4310291202 cites W2743730740 @default.
- W4310291202 cites W2746591774 @default.
- W4310291202 cites W2761716083 @default.
- W4310291202 cites W2764173864 @default.
- W4310291202 cites W2766296504 @default.
- W4310291202 cites W2785170968 @default.
- W4310291202 cites W2785678473 @default.
- W4310291202 cites W2787909709 @default.
- W4310291202 cites W2788509621 @default.
- W4310291202 cites W2791151558 @default.
- W4310291202 cites W2796925049 @default.
- W4310291202 cites W2798490296 @default.
- W4310291202 cites W2798732091 @default.
- W4310291202 cites W2799384816 @default.
- W4310291202 cites W2805308715 @default.
- W4310291202 cites W2883193575 @default.
- W4310291202 cites W2889030195 @default.