Study of NGC 4442: A link between bars and boxy bulges

Details Study of NGC 4442: A link between bars and boxy bulges Study of NGC 4442: A link between bars and boxy bulges

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...281....1b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 281, no. 1, p. 1-6

Astronomy and Astrophysics

Astrophysics

29

Barred Galaxies, Galactic Bulge, Galactic Structure, Kinematics, Morphology, Astronomical Models, Galactic Rotation, Velocity Distribution

Scientific paper

We discuss the kinematics and the morphology of NGC 4442, a SB0 galaxy where the complex bar+lens appears in the images as a thick, boxy structure, but oblique with respect to the disc. This characteristic allows one to recognize the object as a barred galaxy and distinguish it from a boxy-bulged galaxy. The analysis of the morphology and kinematics of this galaxy shows that its properties are similar to those of the boxy and peanut bulges, supporting the hypothesis that these kind of structures are connected with edge-on bars. A comparison of our data (image, rotation curves and velocity dispersion profiles) with a model of thick bar presented in the literature shows a very good agreement.

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