An internal velocity study of the Rosette Nebula

Details An internal velocity study of the Rosette Nebula An internal velocity study of the Rosette Nebula

May 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...229..971f&link_type=abstract

Astrophysical Journal, Part 1, vol. 229, May 1, 1979, p. 971-980.

Computer Science

Numerical Analysis

31

Astronomical Spectroscopy, Emission Spectra, Line Shape, Nebulae, Echelette Gratings, Numerical Analysis, Stellar Evolution

Scientific paper

Emission-line profiles of H-alpha were studied at about 700 points in the Rosette Nebula by using a multislit echelle spectrograph. Numerical analysis of the profiles indicates that variations in the line-of-sight velocity occur within the nebula, reaching about + or - 20 km/s in the inner regions. Evidence is presented that these highest velocities are more probably inward, favoring a model where the central cavity is due to a depletion resulting from rapid star formation

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