PN and HII regions in NGC6822 Virtual Observatory Resource

Authors

1. Hernandez-Martinez L.
2. Pena M.

Published by

CDS

Abstract

Images obtained with the CTIO 4-m telescope and the MOSAIC-2 wide field camera in [OIII] 5007 and Halpha on-band and off-band filters are analyzed to search for emission line objects in the dwarf galaxy NGC 6822. In particular we search for planetary nebula (PN) candidates. In addition, imaging and spectroscopy of a sub-sample of objects obtained with the ESO VLT and FORS 2 spectrograph are used to calibrate the MOSAIC imaging. In the continuum-subtracted images, a large number of line emission regions were detected, for which we measured instrumental magnitudes in all the filters. The [OIII] 5007 and Halpha+[NII] magnitudes were calibrated with the spectroscopy.

Keywords

1. galaxies
2. planetary-nebulae
3. h-ii-regions
4. spectroscopy

Bibliographic source Bibcode

2009A&A...495..447H

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ivo://CDS.VizieR/J/A+A/495/447

Document Object Identifer DOI

doi:10.26093/cds/vizier.34950447

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