标题： 2015年和2022年麒麟座V838的红外光谱 显示英文标题

标题： Infrared Spectroscopy of V838 Monocerotis in 2015 and 2022

摘要： 我们报告了2015年和2022年获得的中分辨率$0.85-2.45\,\mu$m 光谱，以及2015年获得的高分辨率$2.27-2.39\,\mu$m 和$4.59-4.77\,\mu$m 光谱，同时还对$0.85-2.45\,\mu$光谱进行了建模。 V838 Monocerotis 在2002年经历了一系列爆发和极端增亮，这些现象被认为是由于恒星合并造成的。 新的光谱及其建模揭示了一个受扰的红巨星光球层，它可能仍在收缩，并且喷出物正在冷却并以高达200kms$^{-1}$的速度继续扩散。 显示英文摘要

摘要： We report medium-resolution $0.85-2.45\,\mu$m spectroscopy obtained in 2015 and 2022 and high resolution $2.27-2.39\,\mu$m and $4.59-4.77\,\mu$m spectroscopy obtained in 2015 of V838 Monocerotis, along with modeling of the $0.85-2.45\,\mu$ spectrum. V838 Mon underwent a series of eruptions and extreme brightenings in 2002, which are thought to have occured as a result of a stellar merger. The new spectra and modelling of them reveal a disturbed red giant photosphere that is probably continuing to contract and ejecta that are cooling and continuing to disperse at velocities up to 200kms$^{-1}$.