J. Meaburn

Kinematical evidence for a rotating, episodic jet in the planetary nebula Fleming 1

Spatially resolved, long-slit, echelle observations have been obtained in the light of the Hα and [N II] λ6548 emission lines for the symmetric strings of ionized knots emerging from the body of the elliptical planetary nebula Fleming 1. It is found that the magnitudes of the radial velocity differences of both strings systematically increase away from the nebular center. The north string is redshifted, whereas the south string is blue-shifted. The radial velocity difference from tip to tip of the north and south strings is 148 km s -1 . The data are reasonably consistent with a simple ballistic model that assumes episodic ejections of collimated, bipolar flows emerging from a rotating source. These observations confirm some of the theoretical predictions of Soker (1992)

Updated parameters for the transiting exoplanet WASP-3b using RISE, a new fast camera for the Liverpool Telescope

Some of the first results are reported from RISE – a new fast camera mounted on the Liverpool Telescope primarily designed to obtain high time-resolution light curves of transiting extrasolar planets for the purpose of transit timing. A full and partial transit of WASP-3 are presented, and a Markov-Chain Monte Carlo analysis is used to update the parameters from the discovery paper. This results in a planetary radius of

The Morphology and Kinematics of the Complex Polypolar Planetary Nebula NGC 2440

1.29^{\rm +0.05}_{-0.12}

Evidence for an outflow from the Seyfert galaxy NGC

RJ and therefore a density of

WASP‐14b: 7.3 MJ transiting planet in an eccentric orbit

0.82^{+0.14}_{-0.09}~{\rho}_J

Mass Loss and Jet Outflow in the Orion Nebula Proplyd LV 2

, consistent with previous results. The inclination is

Abell 41: shaping of a planetary nebula by a binary central star★

85.06^{\rm +0.16}_{-0.15}

Hubble-type outflows of the high-excitation poly-polar planetary nebula NGC 6302 – from expansion proper motions

deg, in agreement (but with a significant improvement in the precision) with the previously determined value. Central transit times are found to be consistent with the ephemeris given in the discovery paper; however, a new ephemeris calculated using the longer baseline results in

The Hypersonic, Bipolar, Knotty Outflow from the Engraved Hourglass Planetary Nebula MyCn 18

T_{\rm c}

The morphology of the expanding ejecta of V2491 Cygni (2008 N.2)

(0) = 2 454 605.55915