{"title":"LIGHTCURVE ANALYSIS OF HILDA ASTEROIDS AT THE CENTER FOR SOLAR SYSTEM STUDIES: 2018 SEPTEBER - 2019 SEPTEMBER.","authors":"Brian D Warner, Robert D Stephens","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>CCD photometric observations of three Hilda asteroids were made at the Center for Solar System Studies (CS3) in 2019 September. Analysis of the 2019 data for 4495 Dassanowsky, a reported binary (Warner and Stephens, 2019), found three periods, one being very long (431 h). The long period and a secondary one made it a potential member of the <i>very wide binary asteroids</i> but, for the first time for a member of this class, a third period seems to be present. A review of the 2018 data set using comparison star magnitudes from the ATLAS catalog (Tonry et al., 2018) found the previously unnoticed very long period. The secondary and tertiary periods were still in good agreement with the original two-period solution found in 2018. Though the odds are remote and considerable more data are required, the new results from the 2018 data are encouraging in the on-going effort to find evidence that validates claims of the existence of the <i>very wide binary asteroid</i> class.</p>","PeriodicalId":75145,"journal":{"name":"The Minor planet bulletin","volume":"47 1","pages":"37-41"},"PeriodicalIF":0.0000,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7192030/pdf/nihms-1570232.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Minor planet bulletin","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
CCD photometric observations of three Hilda asteroids were made at the Center for Solar System Studies (CS3) in 2019 September. Analysis of the 2019 data for 4495 Dassanowsky, a reported binary (Warner and Stephens, 2019), found three periods, one being very long (431 h). The long period and a secondary one made it a potential member of the very wide binary asteroids but, for the first time for a member of this class, a third period seems to be present. A review of the 2018 data set using comparison star magnitudes from the ATLAS catalog (Tonry et al., 2018) found the previously unnoticed very long period. The secondary and tertiary periods were still in good agreement with the original two-period solution found in 2018. Though the odds are remote and considerable more data are required, the new results from the 2018 data are encouraging in the on-going effort to find evidence that validates claims of the existence of the very wide binary asteroid class.
2019年9月,太阳系研究中心(CS3)对三颗希尔达小行星进行了CCD光度观测。对报道的双星4495达桑诺夫斯基的2019年数据进行分析(华纳和斯蒂芬斯,2019年),发现了三个周期,一个非常长(431小时)。长周期和第二个周期使它成为非常宽的双星小行星的潜在成员,但这是第一次对这类成员来说,第三个周期似乎存在。使用ATLAS目录中比较恒星星等的2018年数据集(Tonry et al., 2018)的回顾发现了以前未被注意到的很长一段时间。第二和第三期仍与2018年发现的最初的两期解决方案保持良好一致。尽管可能性很小,而且还需要大量的数据,但2018年数据的新结果对正在进行的寻找证据的努力来说是令人鼓舞的,这些证据可以证实非常广泛的双小行星类的存在。