天体物理学报(英文版)
天體物理學報(英文版)
천체물이학보(영문판)
ACTA ASTROPHYSICA SINICA
2000年
1期
25-32
,共8页
RASS—-主序前星—-弱发射线TTauri—-光学证认
RASS—-主序前星—-弱髮射線TTauri—-光學證認
RASS—-주서전성—-약발사선TTauri—-광학증인
PMS — WTTS — RASS — optical identification document
quotation 低质量恒星形成区Taurus-Auriga外围区ROSAT 定点观测选弱发射线T Tauri星候选体(WTTS)的光谱证认新发现4个WTTS. 本文给出了目标源的USNO R星等、USNO 坐标(J2000)、分类光谱型、发射/吸收线和富Li X射线源,包括新发现WTTS 的Li I吸收线强度等参量以及WTTS的特征光谱.并利用Hipparcos星表对部分目标源进行了视差和自行的研究. 另外，本文第一次给出了ROSAT发射以来, 利用ROSAT X射线全天巡天亮源表(RASS-BSC)及其定点观测资料，在Taurus-Auriga分子云复合体及周围区域内所发现的WTTS的空间总体分布并作出了相关分析.
quotation 低質量恆星形成區Taurus-Auriga外圍區ROSAT 定點觀測選弱髮射線T Tauri星候選體(WTTS)的光譜證認新髮現4箇WTTS. 本文給齣瞭目標源的USNO R星等、USNO 坐標(J2000)、分類光譜型、髮射/吸收線和富Li X射線源,包括新髮現WTTS 的Li I吸收線彊度等參量以及WTTS的特徵光譜.併利用Hipparcos星錶對部分目標源進行瞭視差和自行的研究. 另外，本文第一次給齣瞭ROSAT髮射以來, 利用ROSAT X射線全天巡天亮源錶(RASS-BSC)及其定點觀測資料，在Taurus-Auriga分子雲複閤體及週圍區域內所髮現的WTTS的空間總體分佈併作齣瞭相關分析.
quotation 저질량항성형성구Taurus-Auriga외위구ROSAT 정점관측선약발사선T Tauri성후선체(WTTS)적광보증인신발현4개WTTS. 본문급출료목표원적USNO R성등、USNO 좌표(J2000)、분류광보형、발사/흡수선화부Li X사선원,포괄신발현WTTS 적Li I흡수선강도등삼량이급WTTS적특정광보.병이용Hipparcos성표대부분목표원진행료시차화자행적연구. 령외，본문제일차급출료ROSAT발사이래, 이용ROSAT X사선전천순천량원표(RASS-BSC)급기정점관측자료，재Taurus-Auriga분자운복합체급주위구역내소발현적WTTS적공간총체분포병작출료상관분석.
Optical spectroscopic identification of X-ray selected WTTScandidates in the Taurus-Auriga outskirts on the basis of ROSAT pointingobservations, has resulted in the discovery of 4 WTTS and several otherLi-rich sources. This paper gives the R magnitudes, coordinates (J2000) from USNO (V1.0),spectral type classifications, equivalent widths of Li I absorption and emission lines of all the X-ray sourcesinvestigated, and the proper motions and parallaxes of some of them, as well as the spectra of the newly discovered WTTS. For the first time, the spatial distribution of a rather complete, ROSAT-discovered sample of WTTS, including those identifiedfrom the ROSAT All-Sky Survey and PSPC pointing observations around one of the nearby star-forming regions hasbeen provided, together with a preliminary analysis.
