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Intensive photometry of southern Wolf-Rayet stars
Results of an intensive photometric campaign on 17 of the brightestsouthern Wolf-Rayet stars are presented. The detection ofmultiperiodicity in two stars, HD 50896 and HD 96548, is reported. It islikely that these periodicities are not coherent but are manifestationsof the quasi-periodic variations seen in a few WR stars. A good exampleof these variations is given by HD 86161. A new eclipsing binary, HD92740, has been discovered; other stars show periodic variations whichcan be explained by phase-dependent scattering of the secondary light asit traverses the Wolf-Rayet wind. An important conclusion of this studyis that not a single example was found of short-period variations whichcan be attributed to pulsation.
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Osservazione e dati astrometrici
| Costellazione: | Triangolo Australe |
| Ascensione retta: | 16h06m27.39s |
| Declinazione: | -63°20'28.2" |
| Magnitudine apparente: | 7.549 |
| Distanza: | 150.83 parsec |
| Moto proprio RA: | -29.3 |
| Moto proprio Dec: | -26.8 |
| B-T magnitude: | 7.655 |
| V-T magnitude: | 7.558 |
Cataloghi e designazioni:
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