THE TULLY-FISHER RELATION IN DIFFERENT ENVIRONMENTS

被引：17

作者：

BIVIANO, A ^{[1
]}

GIURICIN, G ^{[1
]}

MARDIROSSIAN, F ^{[1
]}

MEZZETTI, M ^{[1
]}

机构：

[1] CTR INTERUNIV REG ASTROFIS & COSMOL,I-34014 TRIESTE,ITALY

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 1990年 / 74卷 / 02期

关键词：

Cosmology; Galaxies: clustering; Galaxies: photometry; Radio sources: 21 cm radiation; Radio sources: galaxies;

D O I：

10.1086/191502

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Tully-Fisher relation was investigated using 13 galaxy samples, spanning a large range in galaxy densities. Two 21 cm line-width parameters (Vmax and WRi) and two magnitude systems (BT0 and H-05c) were used. Two statistical tests were adopted to compare the Tully-Fisher relations of different samples. Many environments were considered, and a general homogeneity emerged, i.e., the Tully-Fisher relation showed no environment dependence. The comparison among samples with different data accuracy and/or different magnitude completeness appeared to be misleading. The two line-width parameters were found to be statistically equivalent, while the two magnitude systems gave different slopes to the relation. The blue and the infrared Tully-Fisher relations were found to give similar accuracies in the galaxy distance estimate.

引用

页码：325 / 346

页数：22

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