BIMA array observations of comet Hyakutake: Upper limit to the 2.7 mm continuum emission

被引:7
作者
dePater, I
Snyder, LE
Mehringer, DM
Wright, M
Veal, JM
Fernandez, YR
Palmer, P
AHearn, MF
机构
[1] UNIV ILLINOIS,DEPT ASTRON,URBANA,IL 61801
[2] CALTECH,DOWNS LAB PHYS,PASADENA,CA 91125
[3] UNIV CHICAGO,DEPT ASTRON & ASTROPHYS,CHICAGO,IL 60637
[4] UNIV MARYLAND,DEPT ASTRON,BALTIMORE,MD 21201
关键词
D O I
10.1016/S0032-0633(97)00078-0
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Comet Hyakutake (C/1996 B2) was observed with the BIMA array at wavelength of 2.7 mm. An upper limit of 6.3 mJy per beam is reported. which, if due to thermal emission from the nucleus of the comet itself, translates into an upper limit of 2.5 km for the comet's radius. The results are compared with detections at sub-mm wavelengths (Jewitt and Matthews, Astron. J. 113, 1145-1151, 1997), and the likelihood of detecting comet Hale-Bopp at mm-cm wavelengths is commented on. (C) 1997 Elsevier Science.
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页码:731 / 734
页数:4
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