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8-13 μm spectra of very late type Wolf-Rayet stars

AITKEN, DK; BARLOW, MJ; ROCHE, PF; SPENSER, PM; (1980) 8-13 μm spectra of very late type Wolf-Rayet stars. Monthly Notices of the Royal Astronomical Society , 192 (4) pp. 679-687. 10.1093/mnras/192.4.679. Green open access

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Abstract

8–13 μm spectra are presented of the late Wolf–Rayet stars, Ve 2-45 (WC9), CRL 2104 (WC8), He 2-113 (WC10) and CPD–56° 8032 (WC10). Both WC10 stars show the unidentified feature at 11.25 μm and one of them that at 8.6 μm; their spectra resemble those of some planetary nebulae. These features are absent in the WC8/9 stars, whose spectra, together with their infrared photometric data, can be understood in terms of ∼ 900 K blackbody spectra subject to some interstellar silicate absorption and with a small excess beyond 10 μm, perhaps due to SiC grains. The WC10 objects are characterized by much lower dust temperatures and their evolutionary status appears to be very different from that of the WC8/9 stars.

Type: Article
Title: 8-13 μm spectra of very late type Wolf-Rayet stars
Open access status: An open access version is available from UCL Discovery
DOI: 10.1093/mnras/192.4.679
Publisher version: https://doi.org/10.1093/mnras/192.4.679
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.
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/10096226
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