论文标题
Blazar可能是4FGL J0647.7-4418而不是伽马射线二进制
A blazar as the likely counterpart to 4FGL J0647.7-4418 instead of a gamma-ray binary
论文作者
论文摘要
持续的伽马射线源4FGL J0647.7-4418在最新的Fermi目录中与Sub-Dwarf O-Type X射线X-ray二进制HD 49798暂定相关。但是，在伴随纸质纸质纸面的目录的更新版本中，AGN候选者也被提及为AGN候选者。如果第一个关联是正确的，则将增加HD 49798到当前已知的伽马射线二进制文件中，因此，不仅是由于新成员的增加，而且还因为该系统中明显的白矮人伴侣，这代表了重大突破。尽管有这些观点，但我们在这里表明，恒星的关联可能是错误的，并且在费米95％的信心椭圆内，提出的AGN对象是Fermi Source的一个更具想象的对应物，因为其强烈的Blazar相似性。
The persistent gamma-ray source 4FGL J0647.7-4418 is tentatively associated in the latest Fermi catalogue with the sub-dwarf O-type X-ray binary HD 49798. However, an AGN candidate is also mentioned as an alternative identification in updated versions of the catalogue accompanying paper. If the first association were correct, this would add HD 49798 to the handful of currently known gamma-ray binaries and, therefore, represent a significant breakthrough not only because of a new member addition, but also because of the apparent white dwarf companion in this system. Despite these perspectives, here we show that the stellar association is likely wrong and that the proposed AGN object, well inside the Fermi 95% confidence ellipse, is a more conceivable counterpart candidate to the Fermi source due to its strong blazar similarities.
