NEW GALACTIC PLANE SUPERNOVA-REMNANTS

被引:36
作者
TAYLOR, AR [1 ]
WALLACE, BJ [1 ]
GOSS, WM [1 ]
机构
[1] NATL RADIO ASTRON OBSERV,SOCORRO,NM 87801
关键词
D O I
10.1086/116115
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A survey of the region 44-degrees < l < 90-degrees, \b\ < 1.5-degrees has been nearly completed using the Westerbork Synthesis Radio Telescope (WSRT) at 327 MHz. The low frequency, high resolution, and high sensitivity of this survey make it ideal for detecting supernova remnants (SNR's) which previous, primarily single dish, surveys have missed. A total of 24 SNR's have been identified in the survey data, 11 of which are newly discovered. The survey thus nearly doubles the number of known SNR's in this region of the Galactic plane. Because of the characteristics of the survey, these new remnants have lower surface brightness and smaller angular size than previously detected SNR's. Some of the new remnants may be very distant, evolved SNR's. We also note a possible excess of filled-center SNR's in the survey region (compared to the general population).
引用
收藏
页码:931 / 942
页数:12
相关论文
共 20 条
[1]  
Caswell J. L., 1975, AUSTRALIAN J PHYS AS, V37, P39
[2]  
Clark D. H, 1975, AUSTR J PHYS ASTRO S, V37, P1
[3]  
CLARK DH, 1975, AUSTR J PHYS ASTR S, V37, P75
[4]  
CONDON JJ, 1989, AJ, V97, P1084
[5]  
CROVISIER J, 1974, A A, V258, P790
[6]  
FURST E, 1990, ASTRON ASTROPHYS SUP, V85, P691
[7]  
FURST E, 1987, ASTRON ASTROPHYS SUP, V71, P63
[8]   A RADIO INFRARED/OPTICAL STUDY OF CANDIDATE SUPERNOVA-REMNANTS FROM THE CLARK LAKE 30.9 MHZ GALACTIC PLANE SURVEY [J].
GORHAM, PW .
ASTROPHYSICAL JOURNAL, 1990, 364 (01) :187-197
[9]  
Green A. J., 1974, Astronomy and Astrophysics Supplement Series, V18, P267
[10]  
GREEN DA, 1984, MNRAS, V209, P499