聚星和星團(tuán)中相接雙星的觀測(cè)與研究
發(fā)布時(shí)間:2018-05-23 17:44
本文選題:聚星 + 星團(tuán); 參考:《天文學(xué)報(bào)》2013年01期
【摘要】:正大熊W型相接雙星是兩顆子星均充滿并溢出各自洛希瓣、具有對(duì)流公共包層的雙星系統(tǒng).相接雙星中存在各種各樣的相互作用,給理論模型帶來(lái)許多可變參量,對(duì)理論研究提出了挑戰(zhàn).上世紀(jì)六七十年代,經(jīng)過(guò)激烈的爭(zhēng)論,相接雙星的對(duì)流公共包層模型得到公認(rèn),相接雙星的熱弛豫震蕩模型、相接不連續(xù)模型及角動(dòng)量損失理論相繼被提出.然而,在過(guò)去的近40 yr中,理論研究似乎遇到了瓶頸.大量未知參量的共存,使相接雙星的理論研究難以進(jìn)一步開展.研究相接雙星的聚星、星團(tuán)環(huán)境,能為相接雙星的形成和演化提供豐富的信息,因而是探索相接雙星演化問(wèn)題潛在的生長(zhǎng)點(diǎn).越來(lái)越多的觀測(cè)證據(jù)表明,大量相接雙星存在于聚星系統(tǒng)或者星團(tuán)當(dāng)中.作為母系統(tǒng)的聚星、星團(tuán)為研究其中的相接雙
[Abstract]:The W-junction binary star is a binary system in which both substars are filled and overflow their Losch lobes with convective common cladding. There are various interactions in the intersecting binary stars, which bring many variable parameters to the theoretical model and challenge the theoretical research. In the sixties and seventies of the last century, the convection common cladding model of the binary stars was recognized, and the thermal relaxation oscillation model, the discontinuous model and the theory of angular momentum loss were put forward one after another. However, in the past nearly 40 yr, theoretical research seems to meet a bottleneck. Due to the coexistence of a large number of unknown parameters, it is difficult to further develop the theoretical study of binary stars. The study of the cluster environment can provide abundant information for the formation and evolution of the binary stars, so it is a potential growth point to explore the evolution of the interlocking binary stars. A growing body of observational evidence suggests that a large number of conjunctive binary stars are present in the system or cluster. As the parent system of the star cluster, the cluster for the study of the junction of the two
【作者單位】: 中國(guó)科學(xué)院云南天文臺(tái);
【分類號(hào)】:P153
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本文編號(hào):1925713
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