STRUCTURE AND EXTINCTION OF 30 DORADUS AND THE NEARBY SNR-N157B AS MEASURED BY A COMPARISON OF RADIO AND OPTICAL-IMAGES

被引：27

作者：

DICKEL, JR

MILNE, DK

KENNICUTT, RC

CHU, YH

SCHOMMER, RA

机构：

[1] UNIV ILLINOIS,DEPT ASTRON,URBANA,IL 61801

[2] UNIV ARIZONA,STEWARD OBSERV,TUCSON,AZ 85721

[3] CERRO TOLOLO INTERAMER OBSERV,LA SERENA,CHILE

来源：

ASTRONOMICAL JOURNAL | 1994年 / 107卷 / 03期

关键词：

D O I：

10.1086/116918

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A 13 cm radio continuum image of the 30 Doradus region has been made with 7.5'' resolution using the Australia Telescope. It has been compared with a calibrated optical CCD image obtained at Cerro Tololo. The two images are virtually identical, indicating little variation in extinction across the nebula. The mean value of the extinction at H(alpha) is 1.1 mag. The detailed radio image confirms that N157B is a Crab-like (nonshell) SNR with an extent of about 90'' X 70''.

引用

页码：1067 / 1072

页数：6

共 21 条

[1]

[Anonymous], 1966, SMITHSONIAN ASTROPHY

[2]

BOOTH RS, 1991, IAU S, V148, P157

[3]

Caplan J., 1985, Astronomy & Astrophysics Supplement Series, V62, P63

[4] 30 DOR B - A SUPERNOVA REMNANT IN A STAR FORMATION REGION [J].

CHU, YH ;

KENNICUTT, RC ;

SCHOMMER, RA ;

LAFF, J .

ASTRONOMICAL JOURNAL, 1992, 103 (05) :1545-1551

[5]

CHU YH, 1993, UNPUB

[6]

CLAYTON CA, 1987, ASTRON ASTROPHYS, V173, P137

[7] THE CARBON ABUNDANCE IN THE MAGELLANIC CLOUDS FROM IUE OBSERVATIONS OF H-II REGIONS [J].

DUFOUR, RJ ;

SHIELDS, GA ;

TALBOT, RJ .

ASTROPHYSICAL JOURNAL, 1982, 252 (02) :461-473

[8]

Feast M.W., 1991, IAU S, V148, P1

[9] THE BRIGHTEST STARS IN THE MAGELLANIC CLOUDS [J].

FEAST, MW ;

THACKERAY, AD ;

WESSELINK, AJ .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1960, 121 (04) :337-&

[10]

Kennicutt R. C., 1986, ASTROPHYS J, V306, P130, DOI [DOI 10.1086/164326, 10.1086/164326]

← 1 2 3 →