Skip to main content
SpringerLink
Log in

A magnetized disk around an O star in W75N. A VLBI map of the OH maser

  • Published:
Astronomy Reports Aims and scope Submit manuscript

Abstract

W75N is a star-forming region containing ultracompact H II regions as well as OH, H2O, and methanol masers. The VLBA maps obtained show that the masers are located in a thin disk rotating around an O star, which is the exciting star for the ultracompact H II region VLA1. A separate group of maser spots is associated with the ultracompact H II region VLA2. The radial velocity of the maser spots varies across the disk from 3.7 to 10.9 km/s. The disk diameter is 4000 AU. The maser spots revolve in Keplerian orbits around the O9 star.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. A. D. Haschick, M. J. Reid, B. F. Burke, et al., Astrophys. J. 244, 76 (1981).

    Article  ADS  Google Scholar 

  2. E. E. Baart, R. J. Cohen, R. D. Davies, et al., Mon. Not. R. Astron. Soc. 219, 145 (1986).

    ADS  Google Scholar 

  3. J. M. Torrelles, J. F. Gomez, L. F. Rodriguez, et al., Astrophys. J. 489, 744 (1997).

    Article  ADS  Google Scholar 

  4. C. Stanghellini, D. Dallacasa, C. P. O’Dea, et al., Astron. Soc. Pac. Conf. Ser. 164, 177 (1998).

    ADS  Google Scholar 

  5. R. G. Conway, S. T. Garrington, R. A. Perley, and J. A. Biretta, Astron. Astrophys. 267, 347 (1993).

    ADS  Google Scholar 

  6. R. D. Davies, R. S. Booth, and J.-N. Perbet, Mon. Not. R. Astron. Soc. 181, 83 (1977).

    ADS  Google Scholar 

  7. M. D. Gray and D. Field, Astron. Astrophys. 298, 243 (1995).

    ADS  Google Scholar 

  8. V. I. Slysh, I. E. Val’tts, S. V. Kalenskii, and G. M. Larionov, Astron. Zh. 76, 751 (1999) [Astron. Rep. 43, 657 (1999)].

    Google Scholar 

  9. T. J. T. Moore, G. M. Mountain, and T. Yamashita, Mon. Not. R. Astron. Soc. 248, 79 (1991).

    ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Astro Space Center, Lebedev Physical Institute, Russian Academy of Sciences, Profsoyuznaya ul. 84/32, Moscow, 117810, Russia

    V. I. Slysh & I. E. Val’tts

  2. Department of Astronomy, University of Guanajuato, Apdo Postal 144, Guanajuato, GTO, CP36000, Mexico

    V. Migenes

Authors
  1. V. I. Slysh
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. I. E. Val’tts
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. V. Migenes
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

__________

Translated from Astronomicheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Zhurnal, Vol. 78, No. 12, 2001, pp. 1073–1080.

Original Russian Text Copyright © 2001 by Slysh, Val’tts, Migenes.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Slysh, V.I., Val’tts, I.E. & Migenes, V. A magnetized disk around an O star in W75N. A VLBI map of the OH maser. Astron. Rep. 45, 942–948 (2001). https://doi.org/10.1134/1.1426124

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1134/1.1426124

Keywords

Search

Navigation