GGD 17: A Herbig-Haro Jet Associated with the T Tauri Star Bretz 4?

  • R. Carballo
  • C. Eiroa
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 186)


We have obtained continuum and emission line CCD images of the suspected HH object GGD 17. The object is associated with the T Tauri star Bretz 4. The images reveal a chain of HH knots. We believe that GGD 17 and the HH knots constitute a discontinuous optical jet excited by the star. Optical photometry and spectroscopy of Bretz 4 show that it is extremely active, with an emission line spectrum of class 5 and exhibiting strong photometric variability.


  1. Gyulbudaghian, A.L., Glushkov, Yu.I., Denisyuk, E.K.: 1978, Astrophys. J. Lett. 224, L137ADSCrossRefGoogle Scholar
  2. Herbig, G.H., Rao, N.K.: 1972, Astrophys. J. 174, 401ADSCrossRefGoogle Scholar
  3. Herbst, W., Racine, R.: 1976, Astron. J. 81, 840ADSCrossRefGoogle Scholar
  4. Reipurth, B., Heathcote, S.: 1991, Astron. Astrophys. 246, 511ADSGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1993

Authors and Affiliations

  • R. Carballo
    • 1
  • C. Eiroa
    • 2
  1. 1.Dpto. de Física ModernaUniversidad de CantabriaSantanderSpain
  2. 2.Observatorio Astronómico de Madrid-IGNMadridSpain

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