Kumar, V, Srivastava, M, Banerjee, D, Woodward, C, Munari, U, Evans, A ORCID: https://orcid.org/0000-0002-3142-8953, Joshi, V, Dallaporta, S and Page, K (2021) Optical and near-infrared spectroscopy of Nova V2891 Cygni: evidence for shock-induced dust formation. Monthly Notices of the Royal Astronomical Society.

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Abstract

We present multi-epoch optical and near-infrared observations of the highly reddened, Fe ii class slow nova V2891 Cygni. The observations span 15 months since its discovery. The initial rapid brightening from quiescence, and the presence of a ∼35 day long pre-maximum halt, is well documented. The evidence that the current outburst of V2891 Cyg has undergone several distinct episodes of mass ejection is seen through time-varying P Cygni profiles of the O i 7773 Å line. A highlight is the occurrence of a dust formation event centred around ∼+273d, which coincides with a phase of coronal line emission. The dust mass is found to be ∼ 0.83 − 1.25 × 10−10

Item Type: Article
Additional Information: The final version of this accepted manuscript and all relevant information related to it, including copyrights, can be found on the publisher website at; https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stab3772/6488388
Subjects: Q Science > Q Science (General)
Q Science > QB Astronomy
Q Science > QC Physics
Depositing User: Symplectic
Date Deposited: 05 Jan 2022 14:49
Last Modified: 07 Jan 2022 15:45
URI: https://eprints.keele.ac.uk/id/eprint/10449

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