Understanding the nature of protostellar jets through near-infrared spectroscopy: The key role of the J band proved on HH 43

被引:23
作者
Giannini, T [1 ]
Nisini, B [1 ]
Garatti, ACOCO [1 ]
Lorenzetti, D [1 ]
机构
[1] Osserv Astron Roma, I-00040 Rome, Italy
关键词
ISM : individual (HH 43); ISM : jets and outflows; ISM : lines and bands; stars : formation; stars : mass loss;
D O I
10.1086/340883
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Spectroscopy in the J band (even at low resolutions of R less than or similar to 10(3)) is a mode commonly available in most near-IR spectrographs but is rarely exploited in star formation studies. We show how it is a crucial tool to tracing the physics (temperature, density, excitation mechanisms) of protostellar jets and Herbig-Haro (HH) objects. In this framework the spectrum of HH 43 is revisited as both a clear demonstration of our statement and a case of slow J-type shock excitation.
引用
收藏
页码:L33 / L36
页数:4
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