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  1. No Access

    Article

    A Closer View of the Nucleus of NGC 4314

    We present a high-resolution kinematical study of the ionized gas in the circumnuclear region of NGC 4314. Our spectra reveal the presence of a central structure (apparently a ring or torus) located at ∼ 2 arc...

    P. Pişmiş, L. Colombón, A. Mampaso, M. Manteiga in Astrophysics and Space Science (2001)

  2. No Access

    Article

    Shock modelling of Planetary Nebulae

    The kinematics of Planetary Nebulae are analyzed in terms of the solutions to the equations of hydrodynamic equilibrium developed by J. Cantó. We apply our analysis to the Planetary Nebulae NGC 6905 and NGC 65...

    L. Cuesta, J. P. Phillips, A. Mampaso in Astrophysics and Space Science (1994)

  3. No Access

    Article

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

    We have undertaken map** and spectroscopy of a broad range of type I post-Main-Sequence nebulae in COJ=1→0,J=2→1, andJ=3→2, using the 12 m antenna at Kitt Peak, and the 45 m facility of the Nobeyama Radio Obser...

    J. P. Phillips, P. G. Williams, A. Mampaso, N. Ukita in Astrophysics and Space Science (1992)

  4. No Access

    Article

    A carbon star outflow envelope about IC 418

    We present the results of near-infrared map**, optical spectroscopy, and millimetric COJ+2-1 observations of the halo about IC 418. As a result, we confirm that NIR emission extends outside of the principal emi...

    J. P. Phillips, A. Riera, A. Mampaso in Astrophysics and Space Science (1990)

  5. No Access

    Article

    High-velocity outflows in post-Main-Sequence nebulae

    We present observations of three post-Main-Sequence nebulae taken with an intermediate despersion spectrograph mounted on the 2.5 m Isaac Newton Telescope (La Palma, Spain). Our results reveal evidence for hig...

    L. Cuesta, J. P. Phillips, A. Mampaso in Astrophysics and Space Science (1990)

  6. No Access

    Article

    New insights into a familiar friend: COJ=2–1 map** of the bipolar outflow source NGC 1333 (HH 7–11)

    We have observed the bipolar outflow source NGC 1333 (HH 7–11) in theJ=2–1 transition of12CO, and find evidence for a strong westerly termination of the red outflow lobe at a velocityV lsr ...

    J. P. Phillips, A. Mampaso in Astrophysics and Space Science (1990)

  7. No Access

    Article

    Shocked excitation in the bipolar nebula CRL 618

    A. Riera, J. P. Phillips, A. Mampaso in Astrophysics and Space Science (1990)

  8. No Access

    Article

    Type Ia supernovae observed at La Palma Observatory: Looking for differences within a recent sample

    A sample of recent type Ia supernovae has been observed from La Palma. Spectra of there supernovae were taken at two different phases: around maximum and between one and two months after maximum. We present he...

    P. Ruiz-Lapuente, R. López, M. Kidger, A. Riera, J. Cepa… in Astrophysics and Space Science (1990)

  9. No Access

    Article

    Abundance gradient for 13 planetary nebulae in the Galaxy

    Via optical low-resolution long slit spectroscopy conducted at the 2.5 m INT in La Palma, He, O, N, Ne, A, and S abundances in 13 extended PN were calculated. The analysis of these results allowed us to infer ...

    A. Manchado, S. R. Pottasch, A. Mampaso in Astrophysics and Space Science (1989)

  10. No Access

    Article

    The location of optically thin CO emission in M82

    J. P. Phillips, A. Mampaso in Astrophysics and Space Science (1989)

  11. No Access

    Article

    Small grains in nebulae: The case of IC 418

    We present near infrared maps of the planetary nebula IC 418 taken at 5 arc sec spatial resolution. These show an extremely compact source structure at 1.65 μm, and very much broader and more elliptical emissi...

    J. P. Phillips, A. Mampaso, J. M. Vilchez, P. Gomez in Astrophysics and Space Science (1986)