Optical and X-ray variability in NGC 4395

P. Lira, A. Lawrence

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)peer-review

Abstract

We are studying a volume-limited sample of very nearby galaxies using multi-band imaging and optical spectroscopy. Our aims are to study the nature of low luminosity nuclear activity in normal galaxies, and the star formation activity and history in nuclear regions. The sample of 46 galaxies was selected from the Kraan-Korteweg & Tamman (KKT) catalogue and contains all galaxies within 7 Mpc, with declinations > -35 deg, and Hubble types Sdm or earlier. With complete UBVRI imaging, and near-IR, X-ray and radio data for the majority of our sample, we selected all interesting targets for high S/N, long-slit spectroscopy. Currently 76% of the sample has been observed with the ISIS spectrograph at The William Herschel Telescope. In this poster we present results from our spectroscopic data, which involves the analysis and modelling of the nuclear stellar population and emission-line spectra.
Original languageEnglish
Title of host publicationThe central regions of the Galaxy and galaxies
Subtitle of host publicationProceedings of the 184th symposium of the International Astronomical Union, held in Kyoto, Japan, August 18-22, 1997
EditorsYoshiaki Sofue
PublisherKluwer Academic Publishers
Pages83
Volume184
ISBN (Print)079235060X
Publication statusPublished - 1998

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