A search for non-thermal radio emission from jets of massive young stellar objects
A search for non-thermal radio emission from jets of massive young stellar objects
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寻找来自大质量年轻恒星喷流的非热射电发射
DOI：
10.1093/mnras/stz1091
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发表时间：
2019
影响因子：
4.8
通讯作者：
Obonyo W
中科院分区：
文献类型：
--
作者：
Obonyo W
Massive young stellar objects (MYSOs) have recently been shown to drive jets whose particles can interact with either the magnetic fields of the jet or ambient medium to emit non-thermal radiation. We report a search for non-thermal radio emission from a sample of 15 MYSOs to establish the prevalence of the emission in the objects. We used their spectra across theL, C, andQbands along with spectral index maps to characterize their emission. We find that about 50 per cent of the sources show evidence for non-thermal emission with 40 per cent showing clear non-thermal lobes, especially sources of higher bolometric luminosity. The common or IRAS names of the sources that manifest non-thermal lobes are V645Cyg, IRAS 22134+5834, NGC 7538 IRS 9, IRAS 23262 + 640, AFGL 402d, and AFGL 490. All the central cores of the sources are thermal with corresponding mass-loss rates that lie in the range of ∼3 × 10−7to. Given the presence of non-thermal lobes in some of the sources and the evidence of non-thermal emission from some spectral index maps, it seems that magnetic fields play a significant role in the jets of massive protostars. Also noted is that some of the sources show evidence of binarity and variability.
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DOI：
10.1086/177425
发表时间：
1996-07
期刊：
The Astrophysical Journal
影响因子：
--
作者：
T. Rengarajan;P. Ho
通讯作者：
T. Rengarajan;P. Ho
来自年轻恒星和圆盘的磁离心驱动流。
DOI：
--
发表时间：
1994
期刊：
影响因子：
--
作者：
F. Shu;J. Najita;S. Ruden;S. Lizano
通讯作者：
S. Lizano
寻找射向大质量年轻恒星的电离喷流
影响因子：
4.8
作者：
Purser S
通讯作者：
Purser S
V645 Cygni 的双极分子流出
DOI：
--
发表时间：
1989
期刊：
影响因子：
--
作者：
A. Schulz;J. Black;C. Lada;B. Ulich;Robert N. Martin;R. Snell;N. Erickson
通讯作者：
N. Erickson
大质量恒星形成区域 AFGL 437 的 Spitzer IRAC 成像光度研究
DOI：
--
发表时间：
2009
期刊：
影响因子：
--
作者：
L. Dewangan;B. Anandarao
通讯作者：
B. Anandarao