Deep CCD surface photometry of the edge-on spiral NGC 4244

被引:59
作者
Fry, AM [1 ]
Morrison, HL
Harding, P
Boroson, TA
机构
[1] Case Western Reserve Univ, Dept Astron, Cleveland, OH 44106 USA
[2] Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA
[3] Univ Arizona, Steward Observ, Tucson, AZ 85726 USA
[4] Natl Opt Astron Observ, US Gemini Program, Tucson, AZ 85726 USA
关键词
galaxies : individual (NGC 4244); galaxies : photometry; galaxies : spiral;
D O I
10.1086/300999
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We have obtained deep surface photometry of the edge-on spiral galaxy NGC 4244. Our data reliably reach 27.5 R magnitude arcsec(-2), a significant improvement on our earlier deep CCD surface photometry of other galaxies. NGC 4244 is a nearby Scd galaxy whose total luminosity is approximately 1 mag fainter than the peak of the Sc luminosity function. We find that it has a simple structure: a single exponential disk, with a scale height h(Z) = 246 +/- 2 pc, a scale length h(R) = 1.84 +/- 0.02 kpc, and a disk cutoff at a radius R-max = 10.0 kpc (5.4 scale lengths). We confirm a strong cutoff in the stellar disk at R-max, which happens over only 1 kpc. We do not see any statistically significant evidence for disk flaring with radius. Unlike the more luminous Sc galaxies NGC 5907 and M 33, NGC 4244 does not show any evidence for a second component, such as a thick disk or halo, at mu(R) < 27.5 mag arcsec(-2).
引用
收藏
页码:1209 / 1219
页数:11
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