来自3C 273和M 87源的X射线。

X-rays from Sources 3C 273 and M 87.

作者信息

Friedman H, Byram E T

出版信息

Science. 1967 Oct 13;158(3798):257-9. doi: 10.1126/science.158.3798.257.

DOI:10.1126/science.158.3798.257

Abstract

An x-ray survey of the Virgo region revealed signals from the directions of 3C 273 and M 87. Three other x-ray sources appear in the region scanned, but do not fit any known radio sources. The x-ray flux (1 to 10 angstroms) from the direction of 3C 273 is about 1000 times weaker than from the strongest x-ray source, Sco XR-1. If the source is located at the cosmological distance of 500 megaparsecs, the x-ray luminosity is 7.3 x 10(45) ergs per second. The x-ray luminosity of M87 is 1.5 x 10(43) ergs per second.

摘要

对室女座区域的X射线勘测揭示了来自3C 273和M 87方向的信号。在扫描区域中还出现了另外三个X射线源，但它们与任何已知射电源都不匹配。来自3C 273方向的X射线通量（1至10埃）比最强的X射线源天蝎座X-1弱约1000倍。如果该源位于500百万秒差距的宇宙学距离处，其X射线光度为每秒7.3×10⁴⁵尔格。M87的X射线光度为每秒1.5×10⁴³尔格。