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
    Perspectives on the physics of late-type stars from beyond low earth orbit, the moon and mars
    With the new discoveries enabled thanks to the recent space missions, stellar physics is going through a revolution. However, these discoveries opened the door to many new questions that require more observations. The European Space Agency's Human and Robotic Exploration program provides an excellent opportunity to push forward the limits of our
    Santos, Ângela R. G. et al.

    Fecha de publicación:

    10
    2024
    Bibcode
    2024npjMG..10...96M
    Número de citas
    0
  • Con árbitro
    Magnetic diffusion in solar atmosphere produces measurable electric fields
    The efficient release of magnetic energy in astrophysical plasmas, such as during solar flares, can in principle be achieved through magnetic diffusion, at a rate determined by the associated electric field. However, attempts at measuring electric fields in the solar atmosphere are scarce, and none exist for sites where the magnetic energy is
    Wöger, Friedrich et al.

    Fecha de publicación:

    10
    2024
    Bibcode
    2024NatCo..15.8811A
    Número de citas
    0
  • Con árbitro
    Echo-free quality factor of a multilayer axion haloscope
    We report a methodology to determine the quality factor ( Q) of wavy dark matter detectors equipped with multilayered resonators, including Fabry-Pérot interferometers and the so-called dielectric haloscope. An anechoic chamber enables the observation of the resonance frequency and its amplitude for an unlimited series of layers for the first time
    DALI Collaboration et al.

    Fecha de publicación:

    10
    2024
    Bibcode
    2024PhRvD.110g2013H
    Número de citas
    0