How Barred is the NIR Nearby Universe? An analysis using 2MASS

Details How Barred is the NIR Nearby Universe? An analysis using 2MASS How Barred is the NIR Nearby Universe? An analysis using 2MASS

2004-07-15

arxiv.org/abs/astro-ph/0407323v1

Astronomy and Astrophysics

Astrophysics

In the proceedings "Penetrating Bars through Masks of Cosmic Dust: The Hubble Tuning Fork strikes a New Note"

Scientific paper

We determine a firm lower limit to the bar fraction of 0.58 in the nearby
universe using J+H+Ks-band images for 134 spirals from 2MASS. With a mean
deprojected semi-major axis of 5.1 kpc, and a mean deprojected ellipticity of
0.45 this local bar sample lays the ground work for studies on bar formation
and evolution at high redshift.

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