UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

The Radio and Infrared Spectrum of Early-type Stars Undergoing Mass Loss

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. Green open access

[img]
Preview
Text
wright&Barlow.pdf - Published version

Download (1MB) | Preview

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 > 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
Downloads since deposit
24Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item