论文标题
Gaia Edr3中宽二进制的重力红移
Gravitational Redshift for Wide Binaries in Gaia eDR3
论文作者
论文摘要
多普勒效应通常用于根据其光谱特征的其余框波长的相对偏移来推断恒星之间的速度差。在宽阔的二进制文件中，与成分恒星的表面重力红移的差异在0.01 PC以上的分离下占主导地位。我建议，对于Gaia EDR3目录中的宽对，这种效果变得显而易见，但错误地解释为在非常宽的二进制室内部运动学中可能修改了牛顿重力。
The Doppler effect is commonly used to infer the velocity difference between stars based on the relative shifts in the rest-frame wavelengths of their spectral features. In wide binaries, the difference in gravitational redshift from the surfaces of the constituent stars with distinct compactness dominates at separations above 0.01 pc. I suggest that this effect became apparent for wide pairs in the Gaia eDR3 catalogue but incorrectly interpreted as a possible modification of Newtonian gravity in the internal kinematics of very wide binaries.
