论文标题
在白矮人中搜索奇怪的夸克物质对象
Searching for Strange Quark Matter Objects Among White Dwarfs
论文作者
论文摘要
物质的基础状态可能是奇怪的夸克物质（SQM），而不是望子。根据该SQM假设，可以稳定地存在一系列SQM对象，从奇怪的夸克恒星和奇怪的夸克矮到奇怪的夸克行星。一个奇怪的矮人的质量与普通的白色矮人相似，但可以携带一个非常密集的SQM核心（密度高达$ \ sim \ rm 4 \ rm 4 \ times10^{14} {14} \，g \，g \，g \，cm^{ - 3} $），使其半径相应地较小。在这项研究中，我们试图通过考虑质量 - 拉迪乌斯关系的差异来搜索观察到的“白矮人”之间的奇怪矮人。以这种方式确定了七个奇怪的矮人候选人，其质量在$ \ sim 0.02 $ - $ 0.12 m _ {\ odot} $的范围内，Radii以$ \ sim $ 9,000-15,000 km的范围狭窄分布。这七个对象是LSPM J0815+1633，LP 240-30，BD+20 5125B，LP 462-12，WD J1257+5428，2MASS J13453297+4200437+4200437和SDSS J085557.46+0535252244.5。与类似质量的白色矮人相比，这些候选者的半径显然较小。通过对这些有趣的候选者进行大型无线电/红外/光学望远镜的进一步观察。
The ground state of matter may be strange quark matter (SQM), not hadronic matter. A whole sequence of SQM objects, ranging from strange quark stars and strange quark dwarfs to strange quark planets, can stably exist according to this SQM hypothesis. A strange dwarf has a mass similar to that of a normal white dwarf but could harbor an extremely dense SQM core (with a density as large as $\sim \rm 4\times10^{14}\,g\,cm^{-3} $) at the center so that its radius can be correspondingly smaller. In this study, we try to search for strange dwarfs among the observed "white dwarfs" by considering their difference in the mass-radius relation. Seven strange dwarf candidates are identified in this way, whose masses are in the range of $\sim 0.02$ -- $0.12 M_{\odot}$, with the radii narrowly distributed in $\sim$ 9,000 -- 15,000 km. The seven objects are LSPM J0815+1633, LP 240-30, BD+20 5125B, LP 462-12, WD J1257+5428, 2MASS J13453297+4200437, and SDSS J085557.46+053524.5. Compared with white dwarfs of similar mass, these candidates are obviously smaller in radius. Further observations with large radio/infrared/optical telescopes on these interesting candidates are solicited.
