Hostname: page-component-848d4c4894-p2v8j Total loading time: 0 Render date: 2024-05-09T23:01:45.828Z Has data issue: false hasContentIssue false
  • English
  • Français

Proper motion of a nuclear jet relative to a maser feature in NGC 3079

Published online by Cambridge University Press:  03 August 2017

Satoko Sawada-Satoh ,
Makoto Inoue ,
Katsunori M. Shibata ,
Seiji Kameno ,
Naomasa Nakai ,
Victor Migenes  and
Phil J. Diamond
Satoko Sawada-Satoh
Affiliation:
ISAS, Yoshinodai, Sagamihara, Kanagawa, 229-8510 JAPAN
Makoto Inoue
Affiliation:
NAO, Mitaka, Tokyo, 181-8588 JAPAN
Katsunori M. Shibata
Affiliation:
NAO, Mitaka, Tokyo, 181-8588 JAPAN
Seiji Kameno
Affiliation:
NAO, Mitaka, Tokyo, 181-8588 JAPAN
Naomasa Nakai
Affiliation:
NRO, Nobeyama, Minamimaki, Nagano, 384-1305 JAPAN
Victor Migenes
Affiliation:
Univ. de Guanajuato, Guanajuato, CP 36000 MEXICO
Phil J. Diamond
Affiliation:
JBO, Jodrell Bank, Macclesfield, Cheshire, SK11 9DL U.K.

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present high resolution studies of the nuclear region in NGC 3079 with phase-referenced VLBI monitoring between its water maser and continuum emission. From results of the observations, NGC 3079 showed relative motion between core-jet-like continuum components. One of the components (A) relative to the reference maser feature moved with an apparent subluminal velocity along the SE-NW direction, almost parallel to alignment of the components. On the other hand, the position of the other component (B) did not show such a significant change. If the maser gas is associated with a rotating disk, the maser gas should be gravitationally bound to the central mass. This suggests that B and A are the nucleus and jet, respectively.

Type
Part 5. Extragalactic Nuclear Masers
Information
Symposium - International Astronomical Union , Volume 206: Cosmic Masers: From Protostars to Blackholes , 2002 , pp. 404 - 407
Copyright
Copyright © Astronomical Society of the Pacific 2002 

References

Haschick, A. D. & Baan, W. A. 1985, Nature, 314, 144.CrossRefGoogle Scholar
Henkel, C., Güsten, R., Downes, D., Thum, C., Wilson, T. L. & Biermann, P. 1984, A&A, 141, L1.Google Scholar
Herrnstein, J. R., Moran, J. M., Greenhill, L. L., Diamond, P. J., Miyoshi, M., Nakai, N. & Inoue, M. 1997, ApJ, 475, L17.CrossRefGoogle Scholar
Irwin, J. A. & Seaquist, E. B. 1988, ApJ, 335, 658 (IS88) CrossRefGoogle Scholar
Miyoshi, M., Moran, J. M., Herrnstein, J. R., Greenhill, L. J., Nakai, N., Diamond, P. J. & Inoue, M. 1995, Nature, 373, 771.CrossRefGoogle Scholar
Nakai, N., Inoue, M., Miyazawa, K., Miyoshi, M. & Hall, P. 1995, PASJ, 47, 771.Google Scholar
Sawada-Satoh, S., Inoue, M., Shibata, K. M., Kameno, S., Migenes, V., Nakai, N. & Diamond, P. J. 2000, PASJ, 52, 421.CrossRefGoogle Scholar
Trotter, A. S., Greenhill, L. J., Moran, J. M., Reid, M. J., Irwin, J. A. & Lo, K. Y. 1998, ApJ, 495, 740. (T98) CrossRefGoogle Scholar