X-rays in the Orion nebula cluster
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A recent observation of the Orion Nebula Cluster with the ACIS instrument on board the Chandra X-Ray Observatory detected 1075 sources, 525 of which are pre-main-sequence (PMS)...
近期,科研人员借助搭载于钱德拉X射线天文台(Chandra X-Ray Observatory)的ACIS仪器(ACIS instrument),对猎户座星云星团(Orion Nebula Cluster)开展观测,共探测到1075个天体源,其中525个为主序前星(pre-main-sequence, PMS)……



