Keele Research Repository
Explore the Repository
Kumar, V, Srivastava, M, Banerjee, D, Woodward, C, Munari, U, Evans, A, 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, 510 (3). pp. 4265-4283. ISSN 0035-8711
Kumar_2022_MNRAS_inpress.pdf - Accepted Version
Available under License Creative Commons Attribution Non-commercial.
Download (2MB) | Preview
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 |
Uncontrolled Keywords: | line: identification; stars: individual V2891 Cyg; stars: novae, cataclysmic variables; techniques: photometric, spectroscopic; infrared: spectra |
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: | 29 Dec 2022 01:30 |
URI: | https://eprints.keele.ac.uk/id/eprint/10449 |