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    Article

    NGC 4151 entering in an active phase

    Photometric observations of the nucleus of NGC 4151 obtained in a period of 16 nights in April 1990 in the 5672 Å continuum and theU-band have clearly shown that the nucleus has entered into an active phase and i...

    P. -E. Christopoulou, C. D. Goudis, N. Solomos, S. Kemp in Astrophysics and Space Science (1993)

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    An Evolutionary Model For the Wolf Rayet Nebula NGC 2539

    The main outer ring of the WR nebula NGC 2539 expands radially with velocity ≈ 26kms-1. The dynamics are modelled as the interaction of the winds from the O progenitor and the present WR stage with clumpy molecul...

    J. Meaburn, J. E. Dyson, C. D. Goudis in Kinematics and Dynamics of Diffuse Astroph… (1994)

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    Article

    An evolutionary model for the wolf rayet nebula NGC 2539

    The main outer ring of the WR nebula NGC 2539 expands radially with velocity ≈ 26kms−1. The dynamics are modelled as the interaction of the winds from the O progenitor and the present WR stage with clumpy molecul...

    J. Meaburn, J. E. Dyson, C. D. Goudis in Astrophysics and Space Science (1994)