中间极NY Lup和IGRJ1509-6649的自旋调制圆极化
On the spin modulated circular polarization from the intermediate polars NY Lup and IGRJ1509-6649
摘要：
我们报告的高时间分辨率，高信号/噪声，光偏振的中间极NY Lup和IGRJ 1509 -6649。我们的观测证实了NY Lup的圆偏振的检测和颜色依赖性，并另外显示了清晰的白矮星，自旋调制信号。从我们的新的高信号/噪声测光，我们明确地检测到波长相关的自旋和拍周期及其谐波。发现IGRJ 1509 -6649也具有特别强的自旋调制圆偏振信号。它在I滤波器中呈现双峰，在B滤波器中呈现单峰，这与具有相对较强磁场的白矮星的回旋辐射一致。我们讨论了这两个系统中隐含的吸积几何形状和任何轴承这可能有可能与极性和软X射线发射IP之间的连接的关系。相对较强的磁场也暗示它们是极性祖先。
英文摘要：
We report on high time resolution, high signal/noise, photo-polarimetry of the intermediate polars NY Lup and IGRJ1509-6649. Our observations confirm the detection and colour dependence of circular polarization from NY Lup and additionally show a clear white dwarf, spin modulated signal. From our new high signal/noise photometry we have unambiguously detected wavelength dependent spin and beat periods and harmonics thereof. IGRJ1509-6649 is discovered to also have a particularly strong spin modulated circularly polarized signal. It appears double peaked through the I filter and single peaked through the B filter, consistent with cyclotron emission from a white dwarf with a relatively strong magnetic field. We discuss the implied accretion geometries in these two systems and any bearing this may have on the possible relationship with the connection between polars and soft X-ray-emitting IPs. The relatively strong magnetic fields is also suggestive of them being polar progenitors.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
