Showing papers by "Marc Verheijen published in 1995"
01 Jan 1995
TL;DR: In this paper, a preliminary radial-velocity curve is presented with P = 6.8 hr, confirming the binary nature suggested from photometry, which is the first result of spectroscopic monitoring of WR46 (HD 104994, WN3p) in 1991.
Abstract: As the first result of spectroscopic monitoring of WR46 (HD 104994, WN3p) in 1991, a preliminary radial-velocity curve is presented with P = 6.8 hr, confirming the binary nature suggested from photometry.
6 citations
Posted Content•
TL;DR: In this paper, the Westerbork Synthesis Radio Telescope (WSRT) was used to observe the Dwingeloo 1, a nearby barred spiral system, and discovered a small galaxy within the beam of these WSRT observations.
Abstract: We present observations made with the Westerbork Synthesis Radio Telescope of HI emission from Dwingeloo 1, a nearby barred spiral discovered during the Dwingeloo Obscured Galaxies Survey for galaxies hidden in the Zone of Avoidance, and of Dwingeloo 2, a small galaxy discovered in the beam of these WSRT observations. The WSRT data reveal the position of the dynamical center of Dw1, its systemic LSR velocity, its total (projected) width in velocity, its inclination on the sky, and its integrated HI flux, as well as details of the velocity field and gas distribution. Dw1 is the nearest grand-design barred spiral system, and is probably amongst the ten largest galaxies closer than about 5 Mpc. We report here also the discovery of Dwingeloo 2, a small galaxy located within the WSRT primary beam as pointed to Dw1. In view of its angular and kinematic proximity to Dw1, Dw2 may well be a companion to the larger system. The two galaxies are probably both members of the group containing Maffei 1 & 2 and IC342 and may influence the peculiar motions within that group and the morphology of its individual members.
2 citations