太阳邻域XXVII：南天16.5 > R_59 F> 18.0的新自行星发现
The Solar Neighborhood XXVII: Discovery of New Proper Motion Stars with mu > 0.18 "/yr in the Southern Sky with 16.5 > R_59F > 18.0
摘要：
本文给出了1584个新的南半球自行系统，其mu > 0.18“/yr，R_59F > 16.5。这次搜索补充了之前六次在南方天空进行的超级宇宙-侦察（SCR）自行搜索，以寻找在相同自行范围内但R_59F < 16.5的恒星。在以前的论文中，我们提出了这些系统的距离估计，并发现三个系统估计在25 pc以内，其中一个，SCR 1546-5534，可能在6.7 pc的RECONS 10 pc范围内，使其成为第二个最近的发现的搜索。我们发现了97个白矮星候选者，距离估计在10到120 pc之间，以及557个冷亚矮星候选者。本文中发现的亚矮星占我们SCR搜索报告的亚矮星系统的近一半，并且比迄今为止发现的亚矮星更红。SCR搜索现在已经发现了155颗估计在25 pc以内的红矮星，其中10颗在10 pc以内。此外，还发现了143颗白矮星候选者和1155颗冷亚矮星候选者。这里报告的1584个系统增加了先前在我们的SCR搜索中发现的4724个系统的样本，并意味着尚未发现比R_59F = 18.0更暗的其他系统。
英文摘要：
Here we present 1584 new southern proper motion systems with mu > 0.18 "/yr and 16.5 > R_59F > 18.0. This search complements the six previous SuperCOSMOS-RECONS (SCR) proper motion searches of the southern sky for stars within the same proper motion range, but with R_59F < 16.5. As in previous papers, we present distance estimates for these systems and find that three systems are estimated to be within 25 pc, including one, SCR 1546-5534, possibly within the RECONS 10 pc horizon at 6.7 pc, making it the second nearest discovery of the searches. We find 97 white dwarf candidates with distance estimates between 10 and 120 pc, as well as 557 cool subdwarf candidates. The subdwarfs found in this paper make up nearly half of the subdwarf systems reported from our SCR searches, and are significantly redder than those discovered thus far. The SCR searches have now found 155 red dwarfs estimated to be within 25 pc, including 10 within 10 pc. In addition, 143 white dwarf candidates and 1155 cool subdwarf candidates have been discovered. The 1584 systems reported here augment the sample of 4724 systems previously discovered in our SCR searches, and imply that additional systems fainter than R_59F = 18.0 are yet to be discovered.
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