Search Results - "Howarth, I.D."
-
1
The surprising magnetic topology of τ Sco: fossil remnant or dynamo output?
Published in Monthly notices of the Royal Astronomical Society (01-08-2006)“…We report the discovery of a medium-strength (∼0.5 kG) magnetic field on the young, massive star τ Sco (B0.2 V), which becomes the third-hottest magnetic star…”
Get full text
Journal Article -
2
A spectropolarimetric survey of northern hemisphere Wolf–Rayet stars
Published in Monthly notices of the Royal Astronomical Society (01-06-1998)“…We present a homogeneous, high signal-to-noise spectropolarimetric survey of 16 northern hemisphere Wolf–Rayet (WR) stars. A reduction in polarization at…”
Get full text
Journal Article -
3
An ultra-high-resolution study of the interstellar medium towards Orion
Published in Monthly notices of the Royal Astronomical Society (01-12-2001)Get full text
Journal Article -
4
An ultra-high-resolution study of the interstellar medium towards Orion
Published in Monthly notices of the Royal Astronomical Society (01-12-2001)“…We report ultra-high-resolution observations of Na i, Ca ii, K i, CH and CH+ for interstellar sightlines towards 12 bright stars in Orion. These data enable…”
Get full text
Journal Article -
5
Microturbulence in O supergiants
Published in Monthly notices of the Royal Astronomical Society (01-10-1998)“…We investigate the role of classical microturbulence in the non-LTE He i/He ii line formation problem for luminous O-type stars. We find that the shapes and…”
Get full text
Journal Article -
6
Eclipsing spectroscopic binaries in the Small Magellanic Cloud
Published in New astronomy reviews (01-07-2004)“…New results on the properties of eclipsing spectroscopic binary stars, in the Small Magellanic Cloud (SMC), that are composed of two massive stars of spectral…”
Get full text
Journal Article -
7
The spectroscopic orbit and evolution of HD 128220, a system containing an O subdwarf
Published in Publications of the Astronomical Society of the Pacific (01-08-1990)“…Radial-velocity measurements are presented for both components of the HD 128220 system, the only double-lined binary with a published orbit which has as one of…”
Get full text
Journal Article