论文标题
雷德贝克(Redback PSR)j2339 $ -0533的加热杆子
Heated Poles on the Companion of Redback PSR J2339$-$0533
论文作者
论文摘要
我们分析了“红back”毫秒二进制二进制J2339 $ - $ 0533的光度法和光谱。这些观察结果包括凯克和格朗德的新测量结果,以及Oister,Wiyn,Soar和Het望远镜的档案测量值。从Grond(我们的主要光度数据)中得出的参数很好地描述了其余数据集,从而提高了我们对拟合二进制属性的信心。我们的拟合需要在伴侣恒星表面上的热点(可能的磁极),我们看到这些斑点在光度法的8年跨度上移动。派生的二进制倾斜$ i = 69.3^\ circ \ circ \ pm 2.3^\ circ $,以及质量中心速度(来自径向速度拟合)$ k _ {\ rm c} = 347.0 \ pm 3.7 \ pm 3.7 \,,$ \ $ \ $ \ $ \ mathrm { $ 1.47 \ pm 0.09 \,m_ \ odot $。
We analyze photometry and spectra of the "redback" millisecond pulsar binary J2339$-$0533. These observations include new measurements from Keck and GROND, as well as archival measurements from the OISTER, WIYN, SOAR, and HET telescopes. The parameters derived from GROND, our primary photometric data, describe well the rest of the datasets, raising our confidence in our fitted binary properties. Our fit requires hot-spots (likely magnetic poles) on the surface of the companion star, and we see evidence that these spots move over the 8 yr span of our photometry. The derived binary inclination $i = 69.3^\circ\pm 2.3^\circ$, together with the center-of-mass velocity (from the radial-velocity fits) $K_{\rm C} = 347.0\pm 3.7\,$ $\mathrm{km\,s}^{-1}$, give a fairly typical neutron star mass of $1.47\pm 0.09\,M_\odot$.