Published December 8, 2021
| Version v1
Poster
Open
Dust formation in a long-period colliding wind binary WR 125
Authors/Creators
- 1. Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital
- 2. STAR Institute, University of Liège, Belgium
- 3. Pt. Ravishankar Shukla University, Raipur (India)
Description
A long-term infrared and X-ray investigation of the colliding-wind binary WR 125 (WC7+O9III) has been performed. The source appeared brighter in the near and mid infrared wavebands during the years 2017–2021. The infrared excess is attributed to another episode of dust formation after similar instance reported at the beginning of the 1990s during its periastron passage. Long-term modulations have also been observed in the X-ray flux measurements. Both infrared and X-ray emission variations suggest an orbital period ~28-29 years. Multiwavelength observations of WR 125 allowed to draw relevant guidelines for future exploration of this massive binary.
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Bharti_Arora_Poster_IAUS366.pdf
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