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Bowshocks and Non-Linear Motions Seen in the H2O Masers of AFGL 5142

R. A. Burns, T. Handa, H. Imai, T. Nagayama, T. Omodaka, T. Hirota, K. Motogi, H. J. van Langevelde, W. A. Baan

Transactions of IAA RAS, issue 40, 89–93 (2017)

Keywords: Masers, Astrometry, Massive Star Formation, AFGL 5142

Abstract

In this contribution we present new VLBI observations of 22 GHz H₂O masers in the well-known massive star forming region, AFGL 5142. The masers exhibit prototypical well-defined symmetric bowshocks about a central driving source, in addition to revealing the presence of episodic ejection. One water maser located close to the central accreting star shows clear non-linear motion in the sky-plan, possibly indicating the influence of forces near the star/disk. These phenomena (episodic ejection and disk-jet systems) highlight similarities in the processes of low- and high-mass star formation.

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R. A. Burns, T. Handa, H. Imai, T. Nagayama, T. Omodaka, T. Hirota, K. Motogi, H. J. van Langevelde, W. A. Baan. Bowshocks and Non-Linear Motions Seen in the H2O Masers of AFGL 5142 // Transactions of IAA RAS. — 2017. — Issue 40. — P. 89–93.

@article{burns2017,
  abstract = {In this contribution we present new VLBI observations of 22 GHz H₂O masers in the well-known massive star forming region, AFGL 5142. The masers exhibit prototypical well-defined symmetric bowshocks about a central driving source, in addition to revealing the presence of episodic ejection. One water maser located close to the central accreting star shows clear non-linear motion in the sky-plan, possibly indicating the influence of forces near the star/disk. These phenomena (episodic ejection and disk-jet systems) highlight similarities in the processes of low- and high-mass star formation.},
  author = {R.~A. Burns and T. Handa and H. Imai and T. Nagayama and T. Omodaka and T. Hirota and K. Motogi and H.~J.~van Langevelde and W.~A. Baan},
  issue = {40},
  journal = {Transactions of IAA RAS},
  keyword = {Masers, Astrometry, Massive Star Formation, AFGL 5142},
  pages = {89--93},
  title = {Bowshocks and Non-Linear Motions Seen in the H2O Masers of AFGL 5142},
  url = {http://iaaras.ru/en/library/paper/1685/},
  year = {2017}
}

TY  - JOUR
TI  - Bowshocks and Non-Linear Motions Seen in the H2O Masers of AFGL 5142
AU  - Burns, R. A.
AU  - Handa, T.
AU  - Imai, H.
AU  - Nagayama, T.
AU  - Omodaka, T.
AU  - Hirota, T.
AU  - Motogi, K.
AU  - Langevelde, H. J. van
AU  - Baan, W. A.
PY  - 2017
T2  - Transactions of IAA RAS
IS  - 40
SP  - 89
AB  - In this contribution we present new VLBI observations of 22 GHz H₂O
masers in the well-known massive star forming region, AFGL 5142. The
masers exhibit prototypical well-defined symmetric bowshocks about a
central driving source, in addition to revealing the presence of
episodic ejection. One water maser located close to the central
accreting star shows clear non-linear motion in the sky-plan,
possibly indicating the influence of forces near the star/disk. These
phenomena (episodic ejection and disk-jet systems) highlight
similarities in the processes of low- and high-mass star formation.
UR  - http://iaaras.ru/en/library/paper/1685/
ER  -