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Herbig-Haro objects in the Monoceros OB1 molecular cloud
Wang, HC; Yang, J; Wang, M; Yan, J
AbstractWe carried out a wide-field [S II]-emission imaging of the Monoceros OB1 molecular cloud (NGC 2264) to investigate the star formation and outflow activity of the region. Our narrowband [S II] imaging covers an area of sky of similar to2 deg(2), including the entire Mon OB1 cloud. In the northern part of the cloud two new Herbig-Haro (HH) objects, HH 572 and HH 575, are discovered. All four of the previously known HH objects, HH 124, 125, 225, and 226, are also detected in our imaging. Low-dispersion spectroscopic observations of HH 572A, 575B, and 575C1 further confirmed the HH-object nature of these objects. Molecular hydrogen v = 1-0 S(1) narrowband imaging revealed a bright H-2 emission knot in each of the HH 572 and HH 575 regions. By comparing the results of our optical [S II] emission survey with those of the CO molecular outflow survey, it is found that the occurrence frequency of HH objects is similar to that of CO outflows in the Mon OB1 cloud. However, HH objects and CO outflows display different spatial distributions.
KeywordIsm : Herbig-haro Objects Ism : Individual (Monoceros Ob1) Ism : Jets And Outflows Stars : Formation
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000180635900031
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Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Acad Sinica, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Chinese Natl Astron Observ, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Wang, HC,Yang, J,Wang, M,et al. Herbig-Haro objects in the Monoceros OB1 molecular cloud[J]. ASTRONOMICAL JOURNAL,2003,125(2):842-849.
APA Wang, HC,Yang, J,Wang, M,&Yan, J.(2003).Herbig-Haro objects in the Monoceros OB1 molecular cloud.ASTRONOMICAL JOURNAL,125(2),842-849.
MLA Wang, HC,et al."Herbig-Haro objects in the Monoceros OB1 molecular cloud".ASTRONOMICAL JOURNAL 125.2(2003):842-849.
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