490 citations · 2.2k across the 24 of their papers we have counts for
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Herschel imaging of the dust in the Helix Nebula (NGC 7293)
G. C. Van de Steene, P. A. M. van Hoof, K. M. Exter +19
In our series of papers presenting the Herschel imaging of evolved planetary nebulae, we present images of the dust distribution in the Helix nebula (NGC 7293). Images at 70, 160,…
OH+ in astrophysical media: state-to-state formation rates, Einstein coefficients and inelastic collision rates with He
S. Gomez-Carrasco, B. Godard, F. Lique +9
The rate constants required to model the OH observations in different regions of the interstellar medium have been determined using state of the art quantum methods. First, sta…
Herschel spectral-mapping of the Helix Nebula (NGC 7293): Extended CO photodissociation and OH+ emission
M. Etxaluze, J. Cernicharo, J. R. Goicoechea +13
The Helix Nebula (NGC 7293) is the closest planetary nebulae. Therefore, it is an ideal template for photochemical studies at small spatial scales in planetary nebulae. We aim to s…