UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

ON THE DISTANCE TO M1-67

CRAWFORD, IA; BARLOW, MJ; (1991) ON THE DISTANCE TO M1-67. ASTRON ASTROPHYS , 249 (2) 518 - 520.

Full text not available from this repository.

Abstract

The interstellar Na I D2 absorption spectrum of 209 BAC, the WN 8 central star of M 1-67, shows a total velocity extent of 60 km s-1. This is consistent with the spread of gas velocities expected from galactic rotation, provided 209 BAC is at a distance of 4-5 kpc, implying that it is a massive Population I WN 8 star surrounded by a stellar ejecta nebula. If M 1-67 was a planetary nebula at a distance of only 0.5-1 kpc, the velocity extent of the Na I absorption line should be 5-6 times smaller than that observed. We suggest that similar observations should be obtained of We 21, recently discovered by Duerbeck & Reipurth to be a WN 8 star in a ring-like nebula.

Type: Article
Title: ON THE DISTANCE TO M1-67
Keywords: INTERSTELLAR MEDIUM, BUBBLES, SHELLS, SPECTROSCOPY, PLANETARY NEBULAE, GENERAL, STARS, WOLF-RAYET, WOLF-RAYET STARS, NEBULAE
UCL classification: UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Physics and Astronomy
URI: http://discovery.ucl.ac.uk/id/eprint/263767
Downloads since deposit
0Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item