Skip to main content Accessibility help
×
Home

Eclipsing binaries among high-mass stars

  • A. Barr Domínguez (a1), R. Chini (a1) (a2), F. Pozo Nuñez (a1), M. Haas (a1), M. Hackstein (a1), R. Lemke (a1) and M. Murphy (a2)...

Abstract

We present the first results of a comprehensive photometric O-star survey performed with a robotic twin refractor at the Universitätssternwarte Bochum located near Cerro Armazones in Chile. For three high-mass stars, Pismis 24-1, CPD − 51 8946, and HD 319702, we determined the period through the Lafler-Kinman algorithm and modelled the light curves within the framework of the Roche geometry. We introduce a newly discovered eclipsing high-mass binary HD 319702 that shows well-defined eclipses favouring a detached configuration with a period of 2.0 days and an orbital inclination of 67.5. Combining our photometric result with the primary spectral type O8 III(f) (T1 = 34 000 K) we derive a temperature of T2 = 25 200 K for the secondary component.

Copyright

References

Hide All
[1]1Barr Domínguez, A., Chini, R., Pozo Nuñez, F., et al., 2013, A&A, 557, A13
[2]2Chini, R., Barr, A., Buda, L.S., et al., 2013, Centr. Eur. Astrophys. Bull., 37, 295
[3]3Haas, M., Hackstein, M., Ramolla, M., et al., 2012, AN, 333, 706
[4]4Sota, A., Maíz-Apellániz, J., Walborn, N.R., & Shida, R.Y., 2008, RMxAC, 33, 56
[5]5Wilson, R.E., & Devinney, E.J., 1971, ApJ, 166, 605

Eclipsing binaries among high-mass stars

  • A. Barr Domínguez (a1), R. Chini (a1) (a2), F. Pozo Nuñez (a1), M. Haas (a1), M. Hackstein (a1), R. Lemke (a1) and M. Murphy (a2)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed