6533b7ddfe1ef96bd1273da6
RESEARCH PRODUCT
The Near-Infrared Surface Brightness Distribution of NGC4696
Matthew CollessP. Arnalte MurP. Arnalte MurSimon Ellissubject
PhysicsEffective radiusmedia_common.quotation_subjectAstrophysics (astro-ph)FOS: Physical sciencesAstronomy and AstrophysicsRadiusAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsSpace and Planetary ScienceSkyElliptical galaxyHaloSurface brightnessGalaxy clusterAstrophysics::Galaxy Astrophysicsmedia_commonFree parameterdescription
We present H-band observations of the elliptical galaxy NGC4696, the brightest member of the Centaurus cluster of galaxies. We have measured its light profile, using a two-dimensional fitting algorithm, out to a radius of 180 arcsec (37 h^{-1}_{70} kpc). The profile is well described by a de Vaucouleurs law, with an effective radius of 35.3 +/- 1.0 h^{-1}_{70} kpc. There is no need for the extra free parameter allowed by a Sersic law. Allowing for a variation of 0.3% in the sky level, the profile obtained is compatible with data from 2MASS. The profile shows no sign of either a truncation or an extended halo.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-01-29 |