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Issue A&A
Volume 389, Number 3, July III 2002
Page(s) 795 - 801
Section Extragalactic astronomy
DOI http://dx.doi.org/10.1051/0004-6361:20020633



A&A 389, 795-801 (2002)
DOI: 10.1051/0004-6361:20020633

Photometric parameters of edge-on galaxies from 2MASS observations

D. Bizyaev1 and S. Mitronova2

1  Sternberg Astronomical Institute, Universitetsky prospect 13, 119899, Moscow, Russia; Isaac Newton Institute of Chile, Moscow Branch, Russia
2  Special Astrophysical Observatory of RAS, pos. Nizhnij Arkhyz, 357147, Karachaevo-Cherkessia, Russia
    e-mail: mit@sao.ru

(Received 4 January 2002 / Accepted 23 April 2002)

Abstract
To analyze the vertical structure of edge-on galaxies, we have used images of a large uniform sample of flat galaxies that have been taken during the 2MASS all-sky survey. The photometric parameters, such as the radial scale length, the vertical scale height, and the deprojected central surface brightness of galactic disks have been obtained. We find a strong correlation between the central surface brightness and the ratio of the vertical scale height to the vertical scale length: the thinner the galaxy, the lower the central surface brightness of its disk. The vertical scale height does not increase systematically with the distance from the galaxy center in the frames of this sample.


Key words: galaxies: structure -- galaxies: photometry

Offprint request: D. Bizyaev, dmbiz@sai.msu.ru

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© ESO 2002


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