MONOCHROMATIC ISOPHOTOMETRY OF PLANETARY-NEBULAE .1. H-BETA OBSERVATIONS OF NGC6210, 6543, 6826, 7009, 7027 AND 7662

被引：34

作者：

COLEMAN, CI ^{[1
]}

REAY, NK ^{[1
]}

WORSWICK, SP ^{[1
]}

机构：

[1] IMPERIAL COLL SCI & TECHNOL,PHYS DEPT,ASTRON GRP,LONDON SW7 1NA,ENGLAND

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1975年 / 171卷 / 02期

关键词：

Detective quantum efficiency - Dynamic range - Isophotes - Monochromatics - Planetary nebula - Reduction techniques;

D O I：

10.1093/mnras/171.2.415

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The spectracon electronographic detector, with its advantages over photography of large dynamic range, linearity and high detective quantum efficiency, is used in a program of monochromatic surface photometry of planetary nebulae. The instrumentation and data reduction techniques are described. Data in the form of H β (λ 4861 Å) isophote maps are presented for NGC 6210, 6543, 6826, 7009, 7027 and 7662. Each object is discussed with particular reference to faint outer envelopes and maximum overall dimensions. © 1975 Royal Astronomical Society.

引用

页码：415 / &