Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...251..402b&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 251, no. 2, Nov. 1991, p. 402-410.
Astronomy and Astrophysics
Astrophysics
21
Galactic Structure, Intergalactic Media, Interstellar Magnetic Fields, Milky Way Galaxy, Spiral Galaxies, Astronomical Coordinates, Standard Deviation
Scientific paper
It is shown that warps of spiral galaxies are not randomly oriented in the Milky Way neighborhood. By adopting a previous model, in which warps are produced by intergalactic magnetic fields, and considering all Northern Hemisphere warped edge-on NGC spiral galaxies, an analysis of the intergalactic magnetic field in the 100 Mpc neighborhood of the Galaxy is carried out. At the 100 Mpc scale the magnetic field is still rather homogeneous, having a direction given by (alpha = 289 deg, delta = 8 deg), but a characteristic scale of about 25 Mpc is found, inside which the dispersion is very low. The region containing the Virgo Cluster has a direction of the magnetic field different from the direction found in adjacent regions.
Battaner Eduardo
Florido Estrella
Garrido J. L.
Sanchez-Saavedra M. L.
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