MEASUREMENTS OF FLUX-DENSITY OF CAS-A AND CONFIRMATION OF AN ANOMALY AT 38 MHZ

被引：28

作者：

READ, PL ^{[1
]}

机构：

[1] MULLARD RADIO ASTRON OBSERV,CAVENDISH LAB,CAMBRIDGE CB3 0HE,ENGLAND

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1977年 / 178卷 / 01期

关键词：

NASA;

D O I：

10.1093/mnras/178.2.259

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Measurements of the flux density of the young SNR Cas A relative to that of CygA are presented at frequencies of 38, 151 and 1420MHz, and compared with recent observations by Erickson & Perley. Their report of an unexpectedly high flux density at 38 MHz is confirmed, and the two higher frequency results provide further evidence consistent with the suggestion of Baars & Hartsuijker that the radio spectrum of Cas A is tending to flatten. Some possible explanations of the 38-MHz result are discussed. © 1977 Royal Astronomical Society. Provided by the NASA Astrophysics Data System.

引用

页码：259 / 264

页数：6