论文标题
来自仙女座星系的UVIT调查的新结果
New Results from the UVIT Survey of the Andromeda Galaxy
论文作者
论文摘要
已经在Astrosat天文台上观察到紫外线星系（M31）的紫外线成像望远镜（UVIT）仪器。在2017年至2019年期间，M31天空区域有19个田地，每个场中的多个紫外线过滤器，在F148W滤波器中观察到了整个星系，在NUV过滤器中观察到了一半以上。描述了一种新的校准和数据处理，该校准和数据处理改善了紫外线数据的天体和光度法。紫外线（$ \ simeq $ 1 ARCSEC）和新的Astresmetry校准（$ \ simeq $ 0.2 ARCSEC）的高空间分辨率允许识别具有星星，星形簇，X射线源和M31中其他M31中其他源的紫色来源，从而使M31中的其他源相比以前可能更好。我们为M31中的泛质体哈勃仙女座项目的一部分匹配的紫外线源与恒星相匹配的新结果。
The Andromeda Galaxy (M31) has been observed with the UltraViolet Imaging Telescope (UVIT) instrument onboard the AstroSat Observatory. The M31 sky area was covered with 19 fields, in multiple UV filters per field, over the period of 2017 to 2019. The entire galaxy was observed in the FUV F148W filter, and more than half observed in the NUV filters. A new calibration and data processing is described which improves the astrometry and photometry of the UVIT data. The high spatial resolution of UVIT ($\simeq$1 arcsec) and new astrometry calibration ($\simeq$0.2 arcsec) allow identification of UVIT sources with stars, star clusters, X-ray sources, and other source types within M31 to a much better level than previously possible. We present new results from matching UVIT sources with stars measured as part of the Pan-chromatic Hubble Andromeda Treasury project in M31.
