NGC 3379 planetary nebulae radial velocities

DOI

We present the results of a radial velocity survey of planetary nebulae (PNs) in the normal elliptical galaxy NGC 3379 performed with the Kitt Peak 4m telescope and the NESSIE multifiber spectrograph. In two half-nights, we measured 29 PNs with projected galactocentric distances between 0.4 and 3.8 effective radii (1<R<10kpc) with an observational uncertainty of ~7km/s. These data extend 3 times further into the halo than any previous absorption-line velocity study. The velocity dispersion and photometric profile of the galaxy agrees extremely well with that expected from a constant mass-to-light ratio, isotropic orbit Jaffe model with M/L_B_~7; the best-fitting anisotropic models from a quadratic programming algorithm also give M/L_B_~7. The data are consistent with models that contain no dark matter within 3.5 effective radii of the galaxy's nucleus.

Cone search capability for table J/ApJ/414/454/table1 (NGC 3379 planetary nebula velocities)

Identifier
DOI http://doi.org/10.26093/cds/vizier.14140454
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/414/454
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/414/454
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/414/454
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/414/454
Provenance
Creator Ciardullo R.; Jacoby G.H.; Dejonghe H.B.
Publisher CDS
Publication Year 2005
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Exoplanet Astronomy; Interstellar medium; Natural Sciences; Observational Astronomy; Physics