Search
  • Papers


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

About the paper Full text

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.

Citation

Text
RIS
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. TY - JOUR TI - Bowshocks and Non-Linear Motions Seen in the H2O Masers of AFGL 5142 AU - Burns, R. A. AU - T. Handa AU - H. Imai AU - T. Nagayama AU - T. Omodaka AU - T. Hirota AU - K. Motogi AU - van Langevelde, H. J. 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. ER -