Narrow-band photometry and the evolution of M32

Details Narrow-band photometry and the evolution of M32 Narrow-band photometry and the evolution of M32

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pazh...12..529s&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 12, July 1986, p. 529-534) Soviet Astronomy Letters (ISSN 0360-0327), vol. 12, July-Aug

Astronomy and Astrophysics

Astronomy

Astronomical Photometry, Elliptical Galaxies, Galactic Evolution, Narrowband, Absorption Spectra, Metallicity, Spectrophotometry, Star Formation, Stellar Composition, Titanium Oxides

Scientific paper

Spectrophotometry of the integrated spectrum for the 25 arcsec central zone of the compact E galaxy M32 yields spectral indices for the 5150 A Mg, 7150 A TiO absorption features relative to the continuum, as well as wideband U-B, B-V colors. These indicate that the star population has a logarithmic metallicity with the concentration of m/H= -0.6 + or - 0.3 compared with the sun; stars are continuing to form, 0.025 percent (by mass) of all stars having been born in the past 10 to the 8th yr; and the initial mass function has a slope = 3.0 + or - 0.4.

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