SIMBAD references

2006A&A...455..475F - Astronomy and Astrophysics, volume 455, 475-479 (2006/8-4)

Truncated stellar discs in the near infrared. II. Statistical properties and interpretation.

FLORIDO E., BATTANER E., GUIJARRO A., GARZON F. and CASTILLO-MORALES A.

Abstract (from CDS):

The results obtained in Paper I are used to study possible relationships between the truncation radius of stellar discs in the NIR and structural parameters of the galaxies. The NIR truncation radius is larger for brighter galaxies, being proportional to Vmc with c≃3/2, and with Vm being the asymptotic rotation velocity at large radii (when the rotation curve becomes flat), and is lower for higher wavelengths. When it is normalized to the scalelength, the truncation is an increasing function of the central surface brightness and is lower for late type galaxies, although these correlations are weaker. These relations are in agreement with the scenario of magnetically driven truncations.

Abstract Copyright:

Journal keyword(s): galaxies: structure - galaxies: magnetic fields

Simbad objects: 12

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