Velocities of PNe in NGC 4697 Virtual Observatory Resource

Authors
  1. Mendez R.H.
  2. Teodorescu A.M.
  3. Kudritzki R.-P.
  4. Burkert A.
  5. Published by
    CDS
Abstract

We describe the implementation of slitless radial velocity measurements of extragalactic planetary nebulae (PNs) with the 8.2m Subaru telescope and its Cassegrain imaging spectrograph, Faint Object Camera and Spectrograph (FOCAS). As a first application, we have extended a previous search for PNs in NGC 4697 to larger angular distances from its center. A total of 218 PNs were detected, and their radial velocities were measured. We have added 56 new PN detections to the existing sample of 535, observed previously with the ESO VLT + FORS imaging spectrograph; 36 of these new 56 PNs are located at angular distances larger than 230 arcsec from the center of NGC 4697. We compare the new FOCAS velocities with the earlier FORS velocities, for 158 of the 162 reobserved sources, finding good agreement. We now have kinematic information extending out to five effective radii from the center.

Keywords
  1. radial-velocity
  2. planetary-nebulae
  3. apparent-magnitude
Bibliographic source Bibcode
2009ApJ...691..228M
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https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/691/228
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/691/228
Document Object Identifer DOI
doi:10.26093/cds/vizier.16910228

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History

2011-03-07T14:38:07Z
Resource record created
2011-03-07T14:38:07Z
Created
2017-10-03T05:13:11Z
Updated

Contact

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CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
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cds-question@unistra.fr