| Full text | |
| Author(s): Show less - |
Shenar, Tomer
;
Wade, Gregg A.
;
Marchant, Pablo
;
Bagnulo, Stefano
;
Bodensteiner, Julia
;
Bowman, Dominic M.
;
Gilkis, Avishai
;
Langer, Norbert
;
Nicolas-Chene, Andre
;
Oskinova, Lidia
;
Van Reeth, Timothy
;
Sana, Hugues
;
St-Louis, Nicole
;
de Oliveira, Alexandre Soares
;
Todt, Helge
;
Toonen, Silvia
Total Authors: 16
|
| Document type: | Journal article |
| Source: | Science; v. 381, n. 6659, p. 5-pg., 2023-08-18. |
| Abstract | |
Magnetars are highly magnetized neutron stars, the formation mechanism of which is unknown. Hot helium-rich stars with spectra dominated by emission lines are known as Wolf-Rayet stars. We observed the binary system HD 45166 using spectropolarimetry and reanalyzed its orbit using archival data. We found that the system contains a Wolf-Rayet star with a mass of 2 solar masses and a magnetic field of 43 kilogauss. Stellar evolution calculations indicate that this component will explode as a supernova, and that its magnetic field is strong enough for the supernova to leave a magnetar remnant. We propose that the magnetized Wolf-Rayet star formed by the merger of two lower-mass helium stars. (AU) | |
| FAPESP's process: | 03/12618-7 - Structure and evolution of V Sagittae stars, CBSS and related objects |
| Grantee: | Alexandre Soares de Oliveira |
| Support Opportunities: | Scholarships abroad - Research |