21 citations · 26 across the 2 of their papers we have counts for
4 papers
The five axes of the Turtle: symmetry and asymmetry in NGC 6210
William J. Henney, J. A. López, Ma. T. García-Díaz +1
We carry out a comprehensive kinematic and morphological study of the asymmetrical planetary nebula: NGC 6210, known as the Turtle. The nebula's spectacularly chaotic appearance ha…
From outburst to quiescence: spectroscopic evolution of V1838 Aql imbedded in a bow-shock nebula
J. V. Hernández Santisteban, J. Echevarría, S. Zharikov +15
We analyse new optical spectroscopic, direct-image and X-ray observations of the recently discovered a high proper motion cataclysmic variable V1838 Aql. The data were obtained dur…
The Owl and other strigiform nebulae: multipolar cavities within a filled shell
Ma. T. García-Díaz, W. Steffen, W. J. Henney +4
We present the results of long-slit echelle spectroscopy and deep narrow-band imaging of the Owl Nebula (NGC 3587), obtained at the \textit{Observatorio Astronómico Nacional, San P…
Velocity Structure in the Orion Nebula. II. Emission Line Atlas of Partially Ionized to Fully Ionized Gas
Ma. T. García-Díaz, W. J. Henney, J. A. López +2
We present an atlas of three-dimensional (position-position-velocity) spectra of the Orion Nebula in optical emission lines from a variety of different ionization stages: [O I] 630…