Nuclear components in the bulges of disk galaxies

被引：0
|
作者：
Balcells, M [1 ]
Domínguez-Palmero, L [1 ]
Graham, A [1 ]
Peletier, RF [1 ]
机构：
[1] Inst Astrofis Canarias, E-38205 Tenerife, Spain
来源：
CENTRAL KILOPARSEC OF STARBURSTS AND AGN: THE LA PALMA CONNECTION | 2001年 / 249卷
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D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
By combining surface brightness profiles from images taken in the HST/NICMOS F160W and ground-based K bands, we have obtained NIR profiles for a well studied sample of inclined disk galaxies, spanning radial ranges from 20 pc to a few kpc. We fit PSF-convolved Sersic-plus-exponential laws to the profiles, and compare the results with the fits to the ground-based data alone. HST profiles show light excesses over the best-fit Sersic law in the inner similar to 1 arcsec. This is often as a result of inner power-law cusps similar to the inner profiles of intermediate-luminosity elliptical galaxies.
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页码：167 / 170
页数：4
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