论文标题
$γ$ ray毫秒的脉冲脉冲脉冲PSR PSR J2039-5617发出的无线电搏动
Radio pulsations from the $γ$-ray millisecond pulsar PSR J2039-5617
论文作者
论文摘要
最近发现$γ$ -Ray-ray-ray-ray毫秒的脉动（Clark等，2020年，以下是纸张\，I），候选候选候选紫底脉冲3fgl \，J2039.6 $ - $ 5618的预测性质得到了证实，这识别了$γ$ -Ray -ray-ray-ray-ray-ray-ray-ray-ray-ray-ray-ray-ray-ray-ray-ray-ray-ray-ray-ray-ray-ray-ray sps ass \ msp \ msp \ msp。我们在2016年和2019年使用Parkes Radio Telescope观察了这个物体。我们在1.4 \，GHz和3.1 \，GHz的无线电脉动下，在$γ$ -rays中发现的2.6ms期间，也以0.7 \，GHz为0.7 \，在2015年的档案观察中。在所有频段中，无线电脉冲轮廓的特征是一个相对较宽的峰，该峰会导致主要$γ$ - 雷峰。在1.4 \，GHz时，我们发现了大约一半轨道的无线电信号的清晰证据，这是轨道上的一个特征现象，我们将其与二元内气体的存在相关联。从分散量度为$ 24.57 \ pm0.03 $ \，pc \，cm $^{ - 3} $我们得出的PULSAR距离为$ 0.9 \ pm 0.2 $ 0.2 $ \，KPC或$ 1.7 \ pm0.7 $ \，KPC，KPC，根据假定的银河系电子密度模型。无线电和$γ$ - 射线光曲线的建模可独立地确定轨道倾斜度，并确定脉冲星质量，在质量上与论文\ i的结果一致。
The predicted nature of the candidate redback pulsar 3FGL\,J2039.6$-$5618 was recently confirmed by the discovery of $γ$-ray millisecond pulsations (Clark et al. 2020, hereafter Paper\,I), which identify this $γ$-ray source as \msp. We observed this object with the Parkes radio telescope in 2016 and 2019. We detect radio pulsations at 1.4\,GHz and 3.1\,GHz, at the 2.6ms period discovered in $γ$-rays, and also at 0.7\,GHz in one 2015 archival observation. In all bands, the radio pulse profile is characterised by a single relatively broad peak which leads the main $γ$-ray peak. At 1.4\,GHz we found clear evidence of eclipses of the radio signal for about half of the orbit, a characteristic phenomenon in redback systems, which we associate with the presence of intra-binary gas. From the dispersion measure of $24.57\pm0.03$\,pc\,cm$^{-3}$ we derive a pulsar distance of $0.9\pm 0.2$\,kpc or $1.7\pm0.7$\,kpc, depending on the assumed Galactic electron density model. The modelling of the radio and $γ$-ray light curves leads to an independent determination of the orbital inclination, and to a determination of the pulsar mass, qualitatively consistent to the results in Paper\,I.
