Long-Slit Spectroscopy of the Center of M31

Details Long-Slit Spectroscopy of the Center of M31 Long-Slit Spectroscopy of the Center of M31

Jul 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995hst..prop.6255k&link_type=abstract

HST Proposal ID #6255

Physics

Hst Proposal Id #6255 Stellar Populations

Scientific paper

Spectra from 3600-5400A will be taken with the FOC long-slit spectrograph laid across the two central brightness peaks of M31, to study the rotational velocity and the velocity dispersion as a function of position. The central arcsec will be well enough exposed to yield good-S/N spectra that are only 1 pixel {28 mas} high; farther out, successive rows will be averaged. The aim is to get a high-spatial-resolution rotation curve and also to get velocity dispersion as a function of position. Parallel WFPC2 exposures will yield population information at the edge of the bulge.

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