NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-22 T06:04:04 PDT
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For refcode 1994MNRAS.271...39S:
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NED Abstract

Copyright by Royal Astronomical Society. 1994MNRAS.271...39S Line-strength gradients in the bulge components of NGC 3190 and 1023 A. E. Sansom, G. Peace and M. Dodd Centre for Astrophysics, University of Central Lancashire, Preston PR1 2HE Accepted 1994 May 26. Received 1994 May 26; in original form 1993 October 20 ABSTRACT We present spectral changes measured across the bulge of an edge-on spiral (Sa) galaxy, NGC 3190, and an edge-on lenticular galaxy, NGC 1023, probing spatial metallicity and stellar population changes. We find that gradients in spectral line strengths are measurable in the bulge of the spiral galaxy. The lenticular galaxy shows a sharp increase in strength of spectral absorption features towards the galaxy centre, with more gradual gradients further out. Outside the central 1 or 2 arcsec we find no significant difference from gradients found in many ellipticals, indicating that similar amounts of dissipation could have occurred in the formation of ellipticals and the two bulges studied here. Key words: galaxies: abundances - galaxies: formation - galaxies: individual: NGC 3190 - galaxies: individual: NGC 1023 - galaxies: stellar content.
Retrieve 66 NED objects in this reference.
Please click here for ADS abstract

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