500 days of SN 2013dy: Spectra and photometry from the ultraviolet to the infrared

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/101268

Title:	500 days of SN 2013dy: Spectra and photometry from the ultraviolet to the infrared
Authors:	潘彥丞;Pan, Y.-C.;Foley, R. J.;Kromer, M.;Fox, O. D.;Zheng, W.;Challis, P.;Clubb, K. I.;Filippenko, A. V.;Folatelli, G.;Graham, M. L.;Hillebrandt, W.;Kirshner, R. P.;Lee, W. H.;Pakmor, R.;Patat, F.;Phillips, M. M.;Pignata, G.;Röpke, F.;Seitenzahl, I.;Silverman, J. M.;Simon, J. D.;Sternberg, A.;Stritzinger, M. D.;Taubenberger, S.;Vinko, J.;Wheeler, J. C.
Contributors:	理學院天文研究所
Keywords:	Comparative analysis;Hubble Space Telescope;Light curve;Luminosity;Photometry;Space telescopes;Spectra;Star & galaxy formation;Supernovae;supernovae: general;supernovae: individual: SN 2013dy;Supernovas;Symbols;Ultraviolet;Ultraviolet astronomy
Date:	2015-01-01
Issue Date:	2026-04-21 14:28:55 (UTC+8)
Publisher:	Oxford University Press;London: Oxford University Press
Abstract:	摘要： SN 2013dy is a Type Ia supernova (SN Ia) for which we have compiled an extraordinary data set spanning from 0.1 to ∼ 500 d after explosion. We present 10 epochs of ultraviolet (UV) through near-infrared (NIR) spectra with Hubble Space Telescope/Space Telescope Imaging Spectrograph, 47 epochs of optical spectra (15 of them having high resolution), and more than 500 photometric observations in the BVrRiIZYJH bands. SN 2013dy has a broad and slowly declining light curve (Δm 15(B) = 0.92 mag), shallow $\mathrm{Si}\,\small {II}\,\lambda 6355$ absorption, and a low velocity gradient. We detect strong C ii in our earliest spectra, probing unburned progenitor material in the outermost layers of the SN ejecta, but this feature fades within a few days. The UV continuum of SN 2013dy, which is strongly affected by the metal abundance of the progenitor star, suggests that SN 2013dy had a relatively high-metallicity progenitor. Examining one of the largest single set of high-resolution spectra for an SN Ia, we find no evidence of variable absorption from circumstellar material. Combining our UV spectra, NIR photometry, and high-cadence optical photometry, we construct a bolometric light curve, showing that SN 2013dy had a maximum luminosity of $10.0^{+4.8}_{-3.8} \times 10^{42}$ erg s−1. We compare the synthetic light curves and spectra of several models to SN 2013dy, finding that SN 2013dy is in good agreement with a solar-metallicity W7 model. 出版者： London: Oxford University Press 出版日期： 2015-10-01 出處： Monthly notices of the Royal Astronomical Society, 2015-10, Vol.452 (4), p.4307-4325 資源來源： Alma/SFX Local Collection 版權： 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society 2015 版權： Copyright Oxford University Press, UK Oct 1, 2015 識別號： ISSN: 0035-8711 識別號： ISSN: 1365-2966 識別號： ISSN: 1365-8711 識別號： EISSN: 1365-2966 識別號： DOI: 10.1093/mnras/stv1605
Appears in Collections:	[Graduate Institute of Astronomy] journal & Dissertation

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