Imaging and Spectroscopy of the Planetary Nebula NGC 6778
| dc.creator | Maestro, Vicente | |
| dc.creator | Guerrero, Martin A. | |
| dc.creator | Miranda, Luis F. | |
| dc.date | 2003-10-14 | |
| dc.date.accessioned | 2026-07-07T02:10:23Z | |
| dc.date.available | 2026-07-07T02:10:23Z | |
| dc.description | We present narrow-band images and long-slit echelle spectra of the planetary nebula (PN) NGC 6778. The data show this PN as bipolar, with a very prominent low-excitation equatorial toroid, high-excitation lobes and two pairs of collimated outflows. Morphologically, the pairs of outflows are different from each other; one is linear and oriented along the bipolar axis, the other presents an S-shape with changing orientations. Besides the different morphology, both pairs of collimated outflows present radial velocities increasing with distance from the central star and share a common origin in bright knots at the tips of the shell. | |
| dc.description | 4 pages, 2 figures; to appear in Asymmetric Planetary Nebulae III, eds. M. Meixner, J. Kastner, N.Soker and B. Balick (ASP Conf. Ser.) | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0310373 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0310373 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/6725 | |
| dc.subject | Astrophysics | |
| dc.title | Imaging and Spectroscopy of the Planetary Nebula NGC 6778 | |
| dc.type | text |