Planetary nebulae as probes of dark matter in NGC 3384

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 01 Apr 1995Embargo end date: 01 Jan 1995 English Publisher:American Astronomical SocietyJournal:The Astrophysical Journal, volume 443, page L5 (issn: 0004-637X, eissn: 1538-4357,

Copyright policy )Funded by:NSF | Structure and Evolution o...

Authors: Tremblay, Benoit; Merritt, David; Williams, T. B.;

doi: 10.1086/187822 , 10.48550/arxiv.astro-ph/9510098

arXiv: astro-ph/9510098

Planetary nebulae as probes of dark matter in NGC 3384

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Abstract

We have obtained radial velocities of 68 planetary nebulae surrounding the SB0 galaxy NGC 3384 in the Leo I group, using the CTIO 4 m telescope and the Rutgers Fabry-Perot interferometer. The PN system exhibits a well-ordered rotation field aligned with the photometric axes of the galaxy. The rotation curve is flat from about 2 kpc until at least 7 kpc. Our results imply that at least a third of the dynamical mass of the NGC 3379/3384 system may be accounted for in the two bright galaxies.

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Related Organizations

Rutgers, The State University of New Jersey
United States
Rochester Institute of Technology
United States
Rutgers University New Brunswick
United States

Keywords

Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics

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