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VLA observations of water maser emission associated with SVS 13

Published online by Cambridge University Press:  03 August 2017

Luis F. Rodríguez ,
Guillem Anglada ,
José M. Torrelles ,
J. Eduardo Mendoza-Torres ,
Aubrey D. Haschick  and
Paul T. P. Ho
Luis F. Rodríguez
Affiliation:
Instituto de Astronomía, UNAM, Campus Morelia, Apdo. Postal 3-72, Morelia, Michoacán 58089, México
Guillem Anglada
Affiliation:
Instituto de Astrofísica de Andalucía, CSIC, Camino Bajo de Huétor 24, E-18008 Granada, Spain and Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA
José M. Torrelles
Affiliation:
Institut d'Estudis Espacials de Catalunya (IEEC/CSIC) and Instituto de Ciencias del Espacio (CSIC), Edifici Nexus, c/ Gran Capità 2-4, E-08034 Barcelona, Spain
J. Eduardo Mendoza-Torres
Affiliation:
Instituto Nacional de Astrofísica, Optica y Electrónica, Luis Enrique Erro No. 1, Apdo. Postal 51 y 216, 72840 Tonantzintla, Puebla, México
Aubrey D. Haschick
Affiliation:
MIT Haystack Observatory, Westford, MA 01886, USA
Paul T. P. Ho
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA

Abstract

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The young stellar object SVS 13 has been proposed as the powering source of the HH 7-11 objects. Recent observations have revealed that in the radio continuum (3.6-cm) the source is a binary separated by about 0.3 in the east-west direction. We present Very Large Array observations, made in the highest angular resolution A configuration, of H2O maser emission toward this source. Our data show that the H2O spots appear to be segregated in two velocity groups: a group with radial velocity similar to that of the ambient cloud (VLSR ⋍ 8 km s−1) that is associated with the western radio source, and a blueshifted (by ∼20 km s−1) velocity group that is associated with the eastern radio source. We discuss the possible implications of this observation.

Type
Part 1. Star Formation
Information
Symposium - International Astronomical Union , Volume 206: Cosmic Masers: From Protostars to Blackholes , 2002 , pp. 59 - 62
Copyright
Copyright © Astronomical Society of the Pacific 2002 

References

Anglada, G., Rodríguez, L.F., & Torrelles, J. M. 2000, ApJ, 542, L123 Google Scholar
Aspin, C., & Sandell, G. 1994, A&A, 288, 803 Google Scholar
Bachiller, R., Guilloteau, S., Gueth, F., Tafalla, M., Dutrey, A., Codella, C., & Castets, A. 1998, A&A, 339, L49 Google Scholar
Černis, K. 1990, Ap&SS, 166, 315 Google Scholar
Chini, R., Reipurth, B., Sievers, A., Ward-Thompson, D., Haslam, C.G.T., Kreysa, E., & Lemke, R. 1997, A&A, 325, 542 Google Scholar
Eislöffel, J., Günther, E., Hessman, F.V., Mundt, R., Poetzel, R., Carr, J.S., Beckwith, S., & Ray, T.P. 1991, ApJ, 383, L19 CrossRefGoogle Scholar
Goodrich, R.W. 1986, AJ, 92, 885 CrossRefGoogle Scholar
Grossman, E.N., Masson, C.R., Sargent, A.I., Scoville, N.Z., Scott, S., & Woody, D.P. 1987, ApJ, 320, 356 Google Scholar
Herbig, G.H. 1974, Draft Catalog of Herbig-Haro Objects, Lick Obs. Bull. No. 658 Google Scholar
Jennings, R. E., Cameron, D. H. M., Cudlip, W., & Hirst, C. J. 1987, MNRAS, 226, 461 Google Scholar
Looney, L.W., Mundy, L.G., & Welch, W.J. 2000, ApJ, 529, 477 Google Scholar
Rodríguez, L.F., Anglada, G., & Curiel, S. 1997, ApJ, 480, L125 Google Scholar
Strom, S.E., Grasdalen, G.L., & Strom, K.M. 1974, ApJ, 191, 111 CrossRefGoogle Scholar
Strom, S.E., Vrba, F.J., & Strom, K.M. 1976, AJ, 81, 314 CrossRefGoogle Scholar