Implications of Ultraviolet Imaging Telescope observations for star formation histories in NGC 1275

Details Implications of Ultraviolet Imaging Telescope observations for star formation histories in NGC 1275 Implications of Ultraviolet Imaging Telescope observations for star formation histories in NGC 1275

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...395l..49s&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 395, no. 1, p. L49-L54.

Astronomy and Astrophysics

Astrophysics

17

Elliptical Galaxies, Star Formation, Ultraviolet Telescopes, Cooling Flows (Astrophysics), Emission Spectra, Interstellar Extinction, Radio Emission

Scientific paper

We discuss UV imagery of NGC 1275 obtained using the Goddard Ultraviolet Imaging Telescope. We are able to study the UV morphology down to mu 249 of about 25 mag/sq arcsec. There are significant nonaxisymmetric structures in the UV continuum associated with the low-velocity filament system. Continuum from the high-velocity system may also be present. The large aperture UV colors indicate that although the mass function extends to about 5 solar masses, more massive objects are not present. This implies either a cessation of star formation during the last 50-100 Myr or a truncated initial mass function.

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