The Transitional Type Ibn/IIn SN 2022pda, with Pre-explosion Outbursts and a Double-peaked Light Curve

We report the results of a photometric and spectroscopic follow-up campaign of the unusual interacting supernova (SN) 2022pda. Precursor variability lasting ∼100 days is observed before the explosion. The SN light curve has a double-peak shape. It reached a first maximum of M _r = −19.6 ± 0.2 mag, f...

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Autori principali:	Y.-Z. Cai, A. Pastorello, R. Chiba, T. J. Moriya, A. Reguitti, L. Tartaglia, S. Moran, S. Campana, Z.-Y. Wang, J.-W. Zhao, J. P. Anderson, S. Benetti, S. J. Brennan, E. Cappellaro, K. C. Chambers, T.-W. Chen, Z.-H. Chen, T. de Boer, Y.-Z. Dong, J. Duarte, N. Elias-Rosa, M. Fraser, W.-P. Gan, H. Gao, M. Gromadzki, G. Hosseinzadeh, D. A. Howell, C. Inserra, T. Kangas, E. Kankare, T. Kravtsov, L.-P. Li, C.-C. Lin, T. B. Lowe, P. Lundqvist, E. A. Magnier, K. Matilainen, P. A. Mazzali, C. McCully, P. Minguez, T. E. Müller-Bravo, M. Newsome, E. Padilla Gonzalez, C. Pellegrino, P. J. Pessi, T. Petrushevska, G. Pignata, R. P. Santos, S. Schulze, S. J. Smartt, I. A. Smith, K. W. Smith, J. Sollerman, S. Srivastav, M. D. Stritzinger, G. Terreran, G. Valerin, R. Wainscoat, S.-Q. Wang, D. R. Young, L. Galbany, Z. Li, I. Salmaso, S. Zha, J.-M. Bai, B. Wang, X.-F. Wang, J.-J. Zhang
Natura:	Artigo
Lingua:	Inglês
Pubblicazione:	IOP Publishing 2026-01-01
Serie:	The Astrophysical Journal Letters
Soggetti:	Supernovae Core-collapse supernovae Circumstellar matter Stellar mass loss
Accesso online:	https://doi.org/10.3847/2041-8213/ae734e
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