Skip to main content
SpringerLink
Log in

On a new cluster of H2O maser spots in the source ON2

  • Published:
Astronomy Letters Aims and scope Submit manuscript

Abstract

We present the results of our observations of the H2O maser emission toward the complex source ON2 associated with an active star-forming region. The observations were performed in a wide range of radial velocities, from −75 to 90 km s−1. We have detected an emission with flux densities of 9.2, 4, and 26 Jy at radial velocities of −33.5, −24.4, and −18.8 km s−1, respectively, at which no emission has been observed previously. The detected emission is most likely associated with a hitherto unknown cluster of maser spots located between the northern (N) and southern (S) components of the source ON2 (closer to the northern one). This cluster may be associated with one of the three CO molecular outflows in the ON2 region. We have also detected an emission at −22 and −14.5 km s−1 in N and at 12.6 km s−1 in S, which has extended significantly the velocity ranges of the maser emission in these sources and allowed their models to be improved.

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. R. Genzel and D. Downes, Astron. Astrophys. 30, 145 (1977).

    ADS  Google Scholar 

  2. P. Hofner and E. Churchwell, Astron. Astrophys. Suppl. Ser. 120, 283 (1996).

    Article  ADS  Google Scholar 

  3. E. E. Lekht, A. Márquez, and J. E. Mendoza-Torres, Astron. Astrophys. Suppl. Ser. 120, 415 (1996).

    Article  ADS  Google Scholar 

  4. E. E. Lekht, M. A. Trinidad, J. E. Mendoza-Torres, et al., Astron. Astrophys. 456, 145 (2006).

    Article  ADS  Google Scholar 

  5. D. S. Shepherd and E. Churchwell, Astrophys. J. 472, 225 (1996).

    Article  ADS  Google Scholar 

  6. D. S. Shepherd, E. Churchwell, and D. J. Wilner, Astrophys. J. 482, 355 (1997).

    Article  ADS  Google Scholar 

  7. J. E. Wink, W. J. Altenhoff, and P. G. Mezger, Astron. Astrophys. 108, 227 (1982).

    ADS  Google Scholar 

  8. D. O. S. Wood and E. Churchwell, Astrophys. J. Suppl. Ser. 69, 831 (1989).

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Instituto Nacional de Astrofísica, Óptica y Electrónica, Luis Enrique Erro No. 1, Apdo Postal 51 y 216, 72840, Tonantzintla, Puebla, México

    E. E. Lekht

  2. Sternberg Astronomical Institute, Universitetskii pr. 13, Moscow, 119992, Russia

    A. M. Tolmachev

  3. Pushchino Radio Astronomy Observatory, Astrospace Center, Lebedev Physical Institute, Russian Academy of Sciences, Pushchino, Moscow oblast, 142292, Russia

    G. M. Rudnitskii

Authors
  1. E. E. Lekht
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. M. Tolmachev
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. G. M. Rudnitskii
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to E. E. Lekht.

Additional information

Original Russian Text © E.E. Lekht, A.M. Tolmachev, G.M. Rudnitskii, 2009, published in Pis’ma v Astronomicheskiĭ Zhurnal, 2009, Vol. 35, No. 2, pp. 149–153.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Lekht, E.E., Tolmachev, A.M. & Rudnitskii, G.M. On a new cluster of H2O maser spots in the source ON2. Astron. Lett. 35, 132–135 (2009). https://doi.org/10.1134/S1063773709020078

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1063773709020078

PACS numbers

Key words

Search

Navigation