INFRARED IMAGES, VIRGO SPIRALS, AND THE TULLY-FISHER LAW

被引：31

作者：

PELETIER, RF

WILLNER, SP

机构：

[1] Harvard-Smithsonian Ctr. Astrophys., Cambridge, MA 02138

来源：

ASTROPHYSICAL JOURNAL | 1991年 / 382卷 / 02期

关键词：

GALAXIES; CLUSTERING; DISTANCES; INFRARED; SOURCES; PHOTOMETRY;

D O I：

10.1086/170729

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

For a complete (but magnitude-limited) sample of Virgo Cluster spiral galaxies, we present 1.65-mu-m photometry derived from images. Both galaxy inclinations and H-magnitudes are derived from the new data. The new photometry agrees with previous measurements. The infrared inclinations from the present data are usable for galaxies having inclinations greater than 45-degrees, but deeper images would be needed for galaxies more face-on than this. The inclinations are the major observational uncertainty in the Tully-Fisher relation, but the relation in Virgo must have an intrinsic dispersion amounting to approximately 0.4 mag. Sample selection is critical for determination of the intrinsic dispersion.

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页码：382 / 395

页数：14

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