VLBI water maser proper motion measurements in star-forming regions

被引:7
|
作者
Torrelles, JM
Patel, N
Gómez, JF
Anglada, G
Uscanga, L
机构
[1] IEEC, CSIC, Inst Ciencias Espacio, Barcelona, Spain
[2] Harvard Smithsonian Ctr Astrophys, Cambridge, England
[3] INTA, Lab Astrofis Espacial & Fis Fundamental, Madrid, Spain
[4] CSIC, Inst Astrophys Andalucia, Granada, Spain
[5] Univ Nacl Autonoma Mexico, Astron Inst, Mexico City, DF, Mexico
关键词
ISM : jets and outflows; masers-stars : formation; YOUNG STELLAR OBJECTS; CEPHEUS-A; H2O MASERS; BIPOLAR OUTFLOW; EXCITING SOURCE; MASSIVE STARS; JET; EMISSION; DISK; W75N;
D O I
10.1007/s10509-005-3659-0
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We review some of the recent water maser proper motion measurements in star-forming regions performed through VLBI multi-epoch observations. These observations are starting to reveal exciting perspectives, providing the full kinematics of the gas within the outflows/circumstellar disks around YSOs at scales of AUs, discovering new phenomena (e.g., isotropic mass ejections, water maser "micro-structures" exhibiting remarkable coherent and well ordered spatio-kinematical behavior at AU scale), and opening new, puzzling questions related to the early stellar evolution.
引用
收藏
页码:53 / 63
页数:11
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