An Atlas of Hubble Space Telescope Spectra and Images of Nearby Spiral Galaxies

Details An Atlas of Hubble Space Telescope Spectra and Images of Nearby Spiral Galaxies An Atlas of Hubble Space Telescope Spectra and Images of Nearby Spiral Galaxies

Aug 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aj....126..742h&link_type=abstract

The Astronomical Journal, Volume 126, Issue 2, pp. 742-761.

Astronomy and Astrophysics

Astronomy

12

Galaxies: Nuclei, Galaxies: Spiral

Scientific paper

We have observed 54 nearby spiral galaxies with the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope to obtain optical long-slit spectra of nuclear gas disks and STIS optical (~R band) images of the central 5''×5'' of the galaxies. These spectra are being used to determine the velocity field of nuclear disks and hence to detect the presence of central massive black holes. Here we present the spectra for the successful observations. Dust obscuration can be significant at optical wavelengths, and so we also combine the STIS images with archival Near-Infrared Camera and Multi-Object Spectrometer H-band images to produce color maps to investigate the morphology of gas and dust in the central regions. We find a great variety in the different morphologies, from smooth distributions to well-defined nuclear spirals and dust lanes.
Based on observations with the NASA/ESA Hubble Space Telescope obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555.

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