WRIGHT, AE;
BARLOW, MJ;
(1975)
The Radio and Infrared Spectrum of Early-type Stars Undergoing Mass Loss.
Monthly Notices of the Royal Astronomical Society
, 170
(1)
pp. 41-51.
10.1093/mnras/170.1.41.
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Abstract
A unified model is presented for the radio and infrared spectrum of early-type stars surrounded by a gaseous ionized envelope resulting from mass loss. The cases of uniform mass loss (i) at constant velocity, and (ii) with accelerative effects taken into account, are treated. It is shown that the radio and infrared free–free spectra are predicted to be of the form Sν∝ν0.6 except (typically) in the near infrared where the spectrum will become flatter. Various effects which may cause a deviation from a 0.6 spectral index are considered. Finally, it is shown how radio and infrared flux densities may be used to derive mass loss rates and to obtain lower limits to the number of ionizing photons emitted per second by the underlying stars.
| Type: | Article |
|---|---|
| Title: | The Radio and Infrared Spectrum of Early-type Stars Undergoing Mass Loss |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1093/mnras/170.1.41 |
| Publisher version: | https://doi.org/10.1093/mnras/170.1.41 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Physical Sciences, Astronomy & Astrophysics |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10095209 |
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