Fractal Dimension of Galaxy Isophotes
In this paper we investigate the use of the fractal dimension of galaxy isophotes in galaxy classification. We have applied two different methods for determining fractal dimensions to the isophotes of elliptical and spiral galaxies derived from CCD images. We conclude that fractal dimension alone is...
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| Published in | The Astronomical journal Vol. 138; no. 3; pp. 941 - 950 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
IOP Publishing
01.09.2009
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| Online Access | Get full text |
| ISSN | 1538-3881 0004-6256 1538-3881 |
| DOI | 10.1088/0004-6256/138/3/941 |
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| Abstract | In this paper we investigate the use of the fractal dimension of galaxy isophotes in galaxy classification. We have applied two different methods for determining fractal dimensions to the isophotes of elliptical and spiral galaxies derived from CCD images. We conclude that fractal dimension alone is not a reliable tool but that combined with other parameters in a neural net algorithm the fractal dimension could be of use. In particular, we have used three parameters to segregate the ellipticals and lenticulars from the spiral galaxies in our sample. These three parameters are the correlation fractal dimension D corr, the difference between the correlation fractal dimension and the capacity fractal dimension D corr - D cap, and, thirdly, the B - V color of the galaxy. |
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| AbstractList | In this paper we investigate the use of the fractal dimension of galaxy isophotes in galaxy classification. We have applied two different methods for determining fractal dimensions to the isophotes of elliptical and spiral galaxies derived from CCD images. We conclude that fractal dimension alone is not a reliable tool but that combined with other parameters in a neural net algorithm the fractal dimension could be of use. In particular, we have used three parameters to segregate the ellipticals and lenticulars from the spiral galaxies in our sample. These three parameters are the correlation fractal dimension D corr, the difference between the correlation fractal dimension and the capacity fractal dimension D corr - D cap, and, thirdly, the B - V color of the galaxy. |
| Author | Rhee, George Thanki, Sandip Lepp, Stephen |
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| Cites_doi | 10.1086/157753 10.1086/117771 10.1086/320405 10.1086/182253 10.1086/524192 10.1086/499243 10.1016/0375-9601(89)90854-2 10.1093/mnras/283.1.207 10.1007/978-3-642-71001-8 10.1086/322093 10.1103/PhysRevLett.50.346 10.1086/500975 10.1017/CBO9780511600166 10.1046/j.1365-2966.2003.07114.x 10.1086/425565 |
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| References | 12 de Vaucouleurs (2) 1991 17 Mayer-Kress (13) 1986 Blanton (1) 2001; 121 Gershenfeld (5) 1988; Vols. 1 & 2 Hubble (9) 1936 Ivezic (10) 2008 Rhee (18) 2004; 617 Gunn (8) 2006; 131 3 4 Park (14) 2005; 635 6 7 Yasuda (22) 2001; 122 Lahav (11) 1996; 283 Peitgen (16) 1992 Sarraille (19) 1994; 94 Park (15) 2008; 674 Schuster (20) 1988 van den Bergh (21) 1998 |
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| Title | Fractal Dimension of Galaxy Isophotes |
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