猎户座星云的高分辨率X射线观测

High-Resolution X-ray Observations of the Orion Nebula.

作者信息

Ku W H, Righini-Cohen G, Simon M

出版信息

Science. 1982 Jan 1;215(4528):61-4. doi: 10.1126/science.215.4528.61.

DOI:10.1126/science.215.4528.61

Abstract

Observations of the Trapezium region in the Orion Nebula obtained with the high-resolution x-ray imaging instrument on board the Einstein Observatory reveal at least 58 sources of x-ray emission. All but two of the sources can be identified with visible stars. The strongest x-ray source is the star Theta(1)C, which excites the emission nebula. Its x-ray luminosity is 6 x 10(32) ergs per second. The rest of the x-ray sources may be identified with stars of all spectral types. Strong x-ray emission is not observed from members of the infrared cluster embedded within the Orion molecular cloud.

摘要

利用爱因斯坦天文台搭载的高分辨率X射线成像仪器对猎户座星云的梯形区域进行观测，发现至少有58个X射线发射源。除了两个源之外，其他所有源都可以与可见恒星对应起来。最强的X射线源是恒星Theta(1)C，它激发了发射星云。其X射线光度为每秒6×10(32)尔格。其余的X射线源可能与所有光谱类型的恒星对应。在猎户座分子云内嵌入的红外星团成员中未观测到强烈的X射线发射。