Morphology, Kinematics, and Dynamics of Bulges of Spirals.II.Surface Photometry of the Central Part of NGC 5055

Bibcode
1996AJ....112.1894A
DOI
10.1086/118151
Acarreta, J. R.; Manteiga, M.; Pismis, P.; Mampaso, A.; Cruz-Gonzalez, G.
Bibliographical reference

Astronomical Journal v.112, p.1894

Advertised on:
11
1996
Number of authors
5
IAC number of authors
1
Citations
2
Refereed citations
2
Description
The morphological properties of the central 1.9 x 2.8 arcmin region of NGC 5055 have been studied on the basis of BVRI and Hα CCD imaging and photometry. Intensity and color profiles, together with isophotal contours have been analyzed and compared with kinematical data from high spatial resolution spectroscopy which was presented in a previous paper. A study is carried out on the extinction by dust in the galaxy. It is found that the extinction law can be obtained from the examination of the colors of a set of 18 OB associations distributed across the galaxy. In particular, we found that dust absorption along the spiral structure can be roughly reproduced by a linear outward decreasing law, with a central value of Anu_ ~ 3-4 mag.
Type
Refereed
Galaxies

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