Astronomy and Astrophysics – Astronomy
Scientific paper
May 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...192.1108m&link_type=abstract
American Astronomical Society, 192nd AAS Meeting, #11.08; Bulletin of the American Astronomical Society, Vol. 30, p.832
Astronomy and Astrophysics
Astronomy
Scientific paper
We present multi-epoch 5 GHz VLBI images of the quasar 1928+738 (z=0.3) made with the Japanese HALCA spacecraft co-observing with the VLBA and Effelsberg. Previous ground-based observations of this source have shown that the evolution of its VLBI-scale structure is consistent with a helical jet which may be caused by Kelvin-Helmholtz instabilities driven by the orbital motion in a massive binary binary black hole system. These multi-epoch space VLBI images are used to place further constraints on this model.
Conway Jessica
Hirabayashi Hisahi
Jones Damien
Kobayashi Hirotada
Meier Dave
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