Molecular and low excitation emission in high mass post-main-sequence nebulae

Bibcode
1992Ap&SS.188..171P
DOI
10.1007/BF00644908
Phillips, J. P.; Williams, P. G.; Mampaso, A.; Ukita, N.
Referencia bibliográfica

Astrophysics and Space Science (ISSN 0004-640X), vol. 188, no. 2, Feb. 1992, p. 171-204. Research supported by DGCYT.

Fecha de publicación:
2
1992
Número de autores
4
Número de autores del IAC
2
Número de citas
6
Número de citas referidas
5
Descripción
A broad range of type I post-main-sequence nebulae have been mapped and studied spectroscopically in the J = 1 - 0, J = 2 - 1, and J = 3 - 2 transitions of CO using the 12-m antenna at Kitt Peak and the 45-m facility at the Nobeyama Radio Observatory. CO J = 2 - 1 emission associated with NGC 3132 and NGC 6445 is detected; the location of CO J = 1 - 0 emission in the nucleus of NGC 6302 is determined, and CO J = 3 - 2 spectroscopy is obtained for the first time for a substantial cross section of type I sources. The nature of the emission is assessed, and its correlation with H2S(1) and optical shock indicators and the underlying processes responsible for the observed trends are discussed.
Tipo
Con árbitro
Nebulosas planetarias
Regiones H I

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
    Multi-dimensional optimisation of the scanning strategy for the LiteBIRD space mission
    Large angular scale surveys in the absence of atmosphere are essential for measuring the primordial B-mode power spectrum of the Cosmic Microwave Background (CMB). Since this proposed measurement is about three to four orders of magnitude fainter than the temperature anisotropies of the CMB, in-flight calibration of the instruments and active
    Takase, Y. et al.

    Fecha de publicación:

    12
    2024
    Bibcode
    2024JCAP...12..036T
    Número de citas
    0
  • Con árbitro
    The Pristine survey: XXIV. The Galactic underdogs: Dynamic tales of a Milky Way metal-poor population
    Context. Metal-poor stars hold key information on the early Milky Way. Through the identification and characterisation of substructures, one can understand internal mechanisms (including merger and accretion events), which are indispensable to reconstruct the formation history of the Galaxy. Aims. To allow an investigation of a population of very
    de La Vernhe, Isaure González Rivera et al.

    Fecha de publicación:

    12
    2024
    Bibcode
    2024A&A...692A.131D
    Número de citas
    0