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Analysis of bipolar outflow parameters, magnetic fields and maser activity relationship in EGO sources

Published online by Cambridge University Press:  16 July 2018

O. S. Bayandina ,
I. E. Val’tts ,
P. Colom ,
S. E. Kurtz ,
G. M. Rudnitskij  and
N. N. Shakhvorostova
O. S. Bayandina
Affiliation:
Astro Space Center, P.N. Lebedev Physical Institute of RAS, Profsoyuznaya st. 84/32, 117997, Moscow, Russia email: bayandina@asc.rssi.ru
I. E. Val’tts
Affiliation:
Astro Space Center, P.N. Lebedev Physical Institute of RAS, Profsoyuznaya st. 84/32, 117997, Moscow, Russia email: bayandina@asc.rssi.ru
P. Colom
Affiliation:
LESIA, Observatoire de Paris-Meudon, CNRS, UPMC, Université Paris-Diderot, 5 place Jules Janssen, 92195, Meudon, France
S. E. Kurtz
Affiliation:
Centro de Radioastronomía y Astrofísica, Universidad Nacional Autónoma de México, Apdo. Postal 3-72, 58089, Morelia, México
G. M. Rudnitskij
Affiliation:
Moscow State University, Sternberg Astronomical Institute, Universitetskii Prospekt 13, Moscow, 119992, Russia
N. N. Shakhvorostova
Affiliation:
Astro Space Center, P.N. Lebedev Physical Institute of RAS, Profsoyuznaya st. 84/32, 117997, Moscow, Russia email: bayandina@asc.rssi.ru
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Abstract

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The interferometric and single-dish observations of the Extended Green Objects sample have been carried out in order to check the possible common pumping mechanism of class I methanol maser (cIMM) and OH(1720 MHz) maser and their identification with a front of bipolar outflow as a source of interstellar shock stimulating collisional pumping of the molecules. High spatial and spectral resolution observations of OH masers allow us to investigate structure, kinematics, and magnetic field configuration of the inner region of the source, i.e., the outflow ejection region. Analysis of magnetic field strength in a disk area is crucial to understanding of the outflow origin.

Keywords

ISM: evolutionmasersmagnetic fields
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S336: Astrophysical Masers: Unlocking the Mysteries of the Universe , September 2017 , pp. 63 - 64
Copyright
Copyright © International Astronomical Union 2018 

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