The kinematics of the Honeycomb nebula in the vicinity of SN 1987A

Details The kinematics of the Honeycomb nebula in the vicinity of SN 1987A The kinematics of the Honeycomb nebula in the vicinity of SN 1987A

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.263l...6m&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 263, no. 1, p. L6-L8.

Astronomy and Astrophysics

Astronomy

12

H Alpha Line, Nebulae, Stellar Evolution, Stellar Spectra, Supernova 1987A, Astronomical Spectroscopy, Line Spectra, Supernova Remnants

Scientific paper

Spatially resolved observations of H-alpha line profiles have been made over the complex of 20 interlocking shells located in the vicinity of SN 1987A and known as the Honeycomb nebula. Complex motions are revealed. Individual approximately 7 arcsec diameter shells are shown to be expanding towards the observer at 100-200 km/s with respect to the systemic radial velocity in this region of the LMC. Velocity 'spikes' coincident with the filamentary edges of individual 'shells' and with a similar range of radial velocities are also revealed in the position-velocity arrays of the H-alpha profiles. It is proposed that all of the kinematical features of the Honeycomb nebula can be generated as one or more young SNR collide with the dense inside boundary of a slower moving giant shell.

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