Chemical abundances and masses of the haloes around the planetary nebulae NGC 6543 and NGC 6826

Bibcode
1989A&A...222..219M
Manchado, A.; Pottasch, S. R.
Referencia bibliográfica

Astronomy and Astrophysics (ISSN 0004-6361), vol. 222, no. 1-2, Sept. 1989, p. 219-226.

Fecha de publicación:
9
1989
Número de autores
2
Número de autores del IAC
1
Número de citas
40
Número de citas referidas
34
Descripción
Spatial resolved low resolution spectroscopy of the haloes around the planetary nebulae NGC 6543 and NGC 6826 were conducted. The results imply that the radiation is thermal and not due to dust reflection. From those data chemical abundances and masses were calculated. Chemical abundances decrease in the haloes, while masses increase up to ten times in NGC 6543 reaching a value of 1 solar mass. The mass loss required to form these haloes coincides with that expected at the beginning of the evolution off the AGB.
Tipo
Con árbitro
Nebulosas planetarias
Estrellas gigantes rojas
Evolución estelar

Te puede interesar

  • Con árbitro
    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.

    Fecha de publicación:

    12
    2024
  • Con árbitro
    "SNe Ia Twins for Life": Toward a Precise Determination of H <SUB>0</SUB>
    Here we present an approach to the measurement of extragalactic distances using twin SNe Ia, taken from the early down to the nebular phase. The approach is purely empirical, although we can give a theoretical background on why the method is reliable. By studying those twins in galaxies where peculiar velocities are relatively unimportant, we can
    Ruiz-Lapuente, P. et al.

    Fecha de publicación:

    12
    2024
    Bibcode
    2024ApJ...977..180R
    Número de citas
    0
  • Con árbitro
    Euclid: High-precision imaging astrometry and photometry from Early Release Observations: I. Internal kinematics of NGC6397 by combining Euclid and Gaia data
    The instruments at the focus of the Euclid space observatory offer superb, diffraction-limited imaging over an unprecedented (from space) wide field of view of 0.57 deg 2. This exquisite image quality has the potential to produce high-precision astrometry for point sources once the undersampling of Euclid's cameras is taken into account by means of
    Libralato, M. et al.

    Fecha de publicación:

    12
    2024
    Bibcode
    2024A&A...692A..96L
    Número de citas
    0