NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-26 T08:44:24 PDT
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For refcode 1989MNRAS.240..195R:
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NED Abstract

Copyright by Royal Astronomical Society. 1989MNRAS.240..195R Tides, torques and the timing argument Somak Raychaudhury and D. Lynden-Bell Institute of Astronomy, Madingley Road, Cambridge CB3 0HA Accepted 1988 February 28, Received 1989 February 27: in original form 1988 September 23 Summary. The quadrupolar component of the gravitational field due to neighbouring galaxies at the barycentre of the Local Group is estimated. The tidal effect consists of an almost equal compression and extension along two principal axes, and of almost no effect along the third. The positive axis of the quadrupole component is aligned with the dipole component for galaxies within 10 Mpc of the Local Group. The nature of the binary orbit of the Andromeda galaxy and the Milky Way in the presence of this tidal field is investigated, and possible orbits are suggested. Though the tidal effects are appreciably strong, they hardly affect the mass of the Local Group derived from timing arguments. The direction along which Andromeda seems to have emerged from the Big Bang indicates that it was responsible for the orbit of the Magellanic Clouds about the Galaxy. The proper motion of Andromeda is predicted.
Retrieve 17 NED objects in this reference.
Please click here for ADS abstract

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