论文标题
使用GAIA BP/RP光谱检测磁性化学奇特的恒星
The detection of magnetic chemically peculiar stars using Gaia BP/RP spectra
论文作者
论文摘要
上主序列的磁性化学奇特（MCP）恒星非常适合研究在有组织的恒星磁场存在下旋转，扩散，质量损失，积聚和脉动的影响。因此，许多重要的模型只能通过该星团进行测试。在此案例研究中，我们研究了使用GAIA任务的低分辨率BP/RP光谱检测MCP恒星的特征性520 Nm通量抑制的可能性。这将使我们能够在不断增加的数据库中有效搜索这些对象。我们采用了三角肌的工具，以追踪1240个已知MCP的520 nm通量抑郁症和包括二进制（包括二进制）的387个正常型物体。为此，我们用BP/RP光谱折叠了过滤器曲线，并生成了良好的颜色图。显然，可以将MCP恒星与正常型对象区分开。对于B-和A型对象的检测率几乎为95 \％。然后，它会降低冷却器型恒星，该恒星与520 nm通量抑制的型号保持一致。 BP/RP光谱显然有资格有效地搜索和检测MCP恒星。
The magnetic chemically peculiar (mCP) stars of the upper main sequence are perfectly suited to studying the effects of rotation, diffusion, mass-loss, accretion, and pulsation in the presence of an organized stellar magnetic field. Therefore, many important models can only be tested with this star group. In this case study we investigate the possibility of detecting the characteristic 520 nm flux depression of mCP stars using low-resolution BP/RP spectra of the Gaia mission. This would enable us to effectively search for these objects in the ever-increasing database. We employed the tool of Delta a photometry to trace the 520 nm flux depression for 1240 known mCP and 387 normal-type objects including binaries. To this end, we folded the filter curves with the BP/RP spectra and generated the well-established color-color diagram. It is clearly possible to distinguish mCP stars from normal-type objects. The detection rate is almost 95\% for B- and A-type objects. It then drops for cooler-type stars, which is in line with models of the 520 nm flux depression. The BP/RP spectra are clearly qualified to efficiently search for and detect mCP stars.
