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arXiv · 2607.22336

Detection of pulsations and a non-stable wind in IRAS 01005+7910, an object with the B[e]-phenomenon

Anatoly S. Miroshnichenko·Valentina G. Klochkova·Vladimir E. Panchuk·Ekaterina S. Islentieva
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Abstract

Comparison of the spectra obtained at different observing dates shows significant variations in the complex H$\alpha$ and H$\beta$ line profiles, such as a systematic increase in their emission peak strengths in 2025$\div$2026 compared to those observed in 2013 as well as a strong variability in their wind component. A detected variable radial velocity $V_{\odot}$ from $-20$ to $-68$ km/s with a standard deviation of the mean value of K$\sim$8.0 km/s can be interpreted as a result of pulsations or the presence of a companion. The stationary positions of forbidden lines with a mean radial velocity of $V_{\odot}=-51.38\pm0.26$ km/s are taken as an improved systemic velocity. Overall, a set of properties of IRAS 01005+7910 points to its status as a post-AGB star, which has undergone the hot-bottom burning phase.

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Anatoly S. Miroshnichenko, Valentina G. Klochkova, Vladimir E. Panchuk, Ekaterina S. Islentieva. 2026-07-24. Detection of pulsations and a non-stable wind in IRAS 01005+7910, an object with the B[e]-phenomenon. https://arxiv.org/abs/2607.22336

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