吸积磁白矮星SDSS J121209 .31+013627.7及其伴星的近红外光谱研究
A Near-Infrared Spectroscopic Study of the Accreting Magnetic White Dwarf SDSS J121209.31+013627.7 and its Substellar Companion
摘要：
与通常被称为SDSS 1212的磁性白矮星相关的过量近红外发射的性质主要通过光谱学进行研究，也通过光度学进行研究。在这个系统中推断的低质量的次级已被先前检测到的H $α$的排放和变化，和$1-2.5$ $μ$ m的光谱数据在这里是一致的存在下，晚L或早期T矮星。超过1.5 $μ$ m的相位平均光谱中看到的多余的磁通量与L8矮亚恒星同伴和回旋辐射在7 MG磁场充分建模。这个有趣的系统表现出几个典型的观测性质的极地，最有可能是一个老的相互作用的双星与磁白矮星和亚恒星施主在一个扩展的低状态。
英文摘要：
The nature of the excess near-infrared emission associated with the magnetic white dwarf commonly known as SDSS 1212 is investigated primarily through spectroscopy, and also via photometry. The inferred low mass secondary in this system has been previously detected by the emission and variation of H$α$, and the $1-2.5$ $μ$m spectral data presented here are consistent with the presence of a late L or early T dwarf. The excess flux seen beyond 1.5 $μ$m in the phase-averaged spectrum is adequately modeled with an L8 dwarf substellar companion and cyclotron emission in a 7 MG magnetic field. This interesting system manifests several observational properties typical of polars, and is most likely an old interacting binary with a magnetic white dwarf and a substellar donor in an extended low state.
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。
