Spatially resolved spectroscopy of WR ring nebulae. III - New results and chemical properties of the sample

Bibcode
1992A&A...259..629E
Esteban, C.; Vilchez, J. M.; Smith, L. J.; Clegg, R. E. S.
Bibliographical reference

Astronomy and Astrophysics (ISSN 0004-6361), vol. 259, no. 2, p. 629-648.

Advertised on:
6
1992
Number of authors
4
IAC number of authors
2
Citations
99
Refereed citations
83
Description
The paper presents detailed high-spatial-resolution spectroscopy of seven WR ring nebulae, observed at several telescopes in both hemispheres. These are Anon (MR 26), Anon (MR 100), G 2.4 + 1.4, L 69.8 + 1.74, NGC 3199, RCW 104, and S 308. Using line diagnostic diagrams, it is found that photoionization is the main excitation source in the sample. Physical conditions and chemical abundances are derived for as many of the observed slit positions as possible in each nebula.
Type
Refereed
H II regions
Stellar evolution
Wolf-Rayet stars

It may interest you

  • Refereed
    Characterisation at Cryogenic Temperatures of an Attenuator for an Application of Astrophysical Instrumentation with MKIDs
    The use of non-cryogenic certified commercial electronics for cryogenic applications may be attractive due to their cost and availability, but it also carries risks related to reliability, performance and thermal compatibility. The decision to use commercial components that are not certified for cryogenics instead of components specifically
    Rodríguez Ramos L.F. et al.

    Advertised on:

    12
    2024
  • Refereed
    The return of FarNet-II: Generation of solar far-side magnetograms from helioseismic data
    Context. The far-side activity of the Sun can be inferred by interpreting the near-side wave field using local helioseismic techniques. However, detections are limited to strongly active regions because signal-to-noise ratio of the data is low. Recently, we developed the FarNet and FarNet-II neural networks to improve the identification of active
    Broock, E. G. et al.

    Advertised on:

    12
    2024
    Bibcode
    2024A&A...692A.182B
    Citations
    0
  • Refereed
    Non-local thermodynamic equilibrium inversions of the Si I 10827 Å spectral line
    Inferring the coupling of different atmospheric layers requires observing spectral lines sensitive to the atmospheric parameters, particularly the magnetic field vector, at various heights. The best way to tackle this goal is to perform multi-line observations simultaneously. For instance, the new version of the Gregor Infrared Spectrograph
    Quintero Noda, C. et al.

    Advertised on:

    12
    2024
    Bibcode
    2024A&A...692A.169Q
    Citations
    0