THE SOLAR NEIGHBORHOOD. XXV. DISCOVERY OF NEW PROPER MOTION STARS WITH 0.?40 yr -1 > µ ? 0.?18 yr -1 BETWEEN DECLINATIONS -47° AND 00°
THE SOLAR NEIGHBORHOOD. XXV. DISCOVERY OF NEW PROPER MOTION STARS WITH 0.?40 yr -1 > µ ? 0.?18 yr -1 BETWEEN DECLINATIONS -47° AND 00°
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DOI：
10.1088/0004-6256/142/1/10
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
Boyd M
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文献类型：
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作者：
Boyd M
我们提出了2817个新的南半球自行系统，它们具有0 farcs 40 yr-1> μ farcs 0 farcs 18 yr-1和-47和00之间的decarcs。这是对南方天空进行的超级宇宙侦察（SCR）自行搜索的延续。我们使用相同的光度关系，以前的搜索提供距离估计的基础上的假设，对象是单一的主序星。我们发现了79个新的红矮星系统，预测在25 pc以内，包括一些以前已知系统的新组成部分。两个系统-SCR 1731-2452（9.5 pc）和SCR 1746-3214（9.9 pc）-预计在10 pc范围内。我们还发现了23个新的白色矮星（WD）候选者，距离估计为15-66 pc，以及360个新的红亚矮星候选者。通过这次搜索，我们完成了对南天μ farcs 18 yr− 1和R 59 F farcs 16.5恒星的SCR扫描，在4724个以前未报道的自行系统中总共得到5042个天体。在这里，我们提供了从我们的SCR自行搜索到目前为止，包括152个红矮星系统估计在25 pc（9个在10 pc），46个WD（10个在25 pc），和598个亚矮星候选人。这次搜索的结果表明，有更多的附近系统被发现在较暗的震级和较低的自行限制比那些探测到目前为止。
We present 2817 new southern proper motion systems with 0 farcs 40 yr− 1> μ⩾ 0 farcs 18 yr− 1 and declination between− 47 and 00. This is a continuation of the SuperCOSMOS-RECONS (SCR) proper motion searches of the southern sky. We use the same photometric relations as previous searches to provide distance estimates based on the assumption that the objects are single main-sequence stars. We find 79 new red dwarf systems predicted to be within 25 pc, including a few new components of previously known systems. Two systems—SCR 1731-2452 at 9.5 pc and SCR 1746-3214 at 9.9 pc—are anticipated to be within 10 pc. We also find 23 new white dwarf (WD) candidates with distance estimates of 15–66 pc, as well as 360 new red subdwarf candidates. With this search, we complete the SCR sweep of the southern sky for stars with μ⩾ 0 farcs 18 yr− 1 and R 59F⩽ 16.5, resulting in a total of 5042 objects in 4724 previously unreported proper motion systems. Here we provide selected comprehensive lists from our SCR proper motion search to date, including 152 red dwarf systems estimated to be within 25 pc (9 within 10 pc), 46 WDs (10 within 25 pc), and 598 subdwarf candidates. The results of this search suggest that there are more nearby systems to be found at fainter magnitudes and lower proper motion limits than those probed so far.