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Newly discovered Galactic H 2O masers associated with outflows
Delin Xiang ; Turner, B.E.
Source PublicationAstrophysical Journal Supplement Series
AbstractThe authors have discovered 17 new H 2O masers in searches of known molecular outflows in regions of star formation and have investigated their time variations. The authors have also made extensive surveys of the literature to enumerate all previous H 2O masers and outflows and have examined the IRAS Point Source Catalog for IRAS sources toward these objects. Together with the results of a survey for molecular outflows in directions of known H 2O masers, the authors are able to assess the success ratio for detections of masers toward known outflows, and for detections of outflows toward known masers. Conclusions about the causal relations between IRAS objects, masers, and outflows are drawn. In particular, the authors suggest that lifetimes and formation conditions for H 2O masers and outflows are similar, or causally related. This is consistent with models of H 2O masers in star-forming regions in which the masers are formed and pumped by gas heated by dissociative shocks, assuming that the shocks are produced by the outflows. The new information on H 2O maser time variations suggests that such variations are unimportant in making these conclusions
Subject Area天文和天体物理
Document Type期刊论文
Recommended Citation
GB/T 7714
Delin Xiang,Turner, B.E.. Newly discovered Galactic H 2O masers associated with outflows[J]. Astrophysical Journal Supplement Series,1995,99(1):121-133.
APA Delin Xiang,&Turner, B.E..(1995).Newly discovered Galactic H 2O masers associated with outflows.Astrophysical Journal Supplement Series,99(1),121-133.
MLA Delin Xiang,et al."Newly discovered Galactic H 2O masers associated with outflows".Astrophysical Journal Supplement Series 99.1(1995):121-133.
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