A long life of excess: The interacting transient SN 2017hcc
| العنوان: | A long life of excess: The interacting transient SN 2017hcc |
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| المؤلفون: | S. Moran, M. Fraser, R. Kotak, A. Pastorello, S. Benetti, S. J. Brennan, C. P. Gutiérrez, E. Kankare, H. Kuncarayakti, S. Mattila, T. M. Reynolds, J. P. Anderson, P. J. Brown, S. Campana, K. C. Chambers, T.-W. Chen, M. Della Valle, M. Dennefeld, N. Elias-Rosa, L. Galbany, F. J. Galindo-Guil, M. Gromadzki, D. Hiramatsu, C. Inserra, G. Leloudas, T. E. Müller-Bravo, M. Nicholl, A. Reguitti, M. Shahbandeh, S. J. Smartt, L. Tartaglia, D. R. Young |
| المساهمون: | HEP, INSPIRE |
| المصدر: | Moran, S, Fraser, M, Kotak, R, Pastorello, A, Benetti, S, Brennan, S J, Gutiérrez, C P, Kankare, E, Kuncarayakti, H, Mattila, S, Reynolds, T M, Anderson, J P, Brown, P J, Campana, S, Chambers, K C, Chen, T-W, Della valle, M, Dennefeld, M, Elias-rosa, N, Galbany, L, Galindo-Guil, F J, Gromadzki, M, Hiramatsu, D, Inserra, C, Leloudas, G, Nicholl, M, Reguitti, A, Shahbandeh, M, Smartt, S J, Tartaglia, L & Young, D R 2023, ' A long life of excess: The interacting transient SN 2017hcc ', Astronomy and Astrophysics, vol. 669, A51 . https://doi.org/10.1051/0004-6361/202244565 Moran, S, Fraser, M, Kotak, R, Pastorello, A, Benetti, S, Brennan, S J, Gutierrez, C P, Kankare, E, Kuncarayakti, H, Mattila, S, Reynolds, T M, Anderson, J P, Brown, P J, Campana, S, Chambers, K C, Chen, T-W, Della Valle, M, Dennefeld, M, Elias-Rosa, N, Galbany, L, Galindo-Guil, F J, Gromadzki, M, Hiramatsu, D, Inserra, C, Leloudas, G, Mueller-Bravo, T E, Nicholl, M, Reguitti, A, Shahbandeh, M, Smartt, S J, Tartaglia, L & Young, D R 2023, ' A long life of excess : The interacting transient SN 2017hcc ', Astronomy & Astrophysics, vol. 669, A51 . https://doi.org/10.1051/0004-6361/202244565 |
| بيانات النشر: | EDP Sciences, 2023. |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | LIGHT CURVES, CALIBRATION, High Energy Astrophysical Phenomena (astro-ph.HE), IIN SUPERNOVA, ANALYTIC SOLUTIONS, general [Supernovae], individual: SN 2017hcc [Supernovae], FOS: Physical sciences, Astronomy and Astrophysics, DUST FORMATION, 2010JL, individual: PS17fra [Supernovae], INFRARED-SPECTROSCOPY, individual: ATLAS17lsn [Supernovae], SUPERLUMINOUS SUPERNOVAE, Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, X-RAY, [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph], Astrophysics - High Energy Astrophysical Phenomena, OPTICAL OBSERVATIONS, Solar and Stellar Astrophysics (astro-ph.SR) |
| الوصف: | In this study we present the results of a five-year follow-up campaign of the long-lived type IIn supernova SN 2017hcc, found in a spiral dwarf host of near-solar metallicity. The long rise time (57 $\pm$ 2 days, ATLAS $o$ band) and high luminosity (peaking at $-$20.78 $\pm$ 0.01 mag in the ATLAS $o$ band) point towards an interaction of massive ejecta with massive and dense circumstellar material (CSM). The evolution of SN 2017hcc is slow, both spectroscopically and photometrically, reminiscent of the long-lived type IIn, SN 2010jl. An infrared (IR) excess was apparent soon after the peak, and blueshifts were noticeable in the Balmer lines starting from a few hundred days, but appeared to be fading by around +1200 days. We posit that an IR light echo from pre-existing dust dominates at early times, with some possible condensation of new dust grains occurring at epochs >$\sim$+800 days. Accepted to A&A |
| وصف الملف: | application/pdf |
| تدمد: | 1432-0746 0004-6361 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7f1df210be6799b841ebcadf6563d2d https://doi.org/10.1051/0004-6361/202244565 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....c7f1df210be6799b841ebcadf6563d2d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14320746 00046361 |
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