SN 2003du: 480 days in the life of a normal type Ia supernova

By V. Stanishev, A. Goobar, S. Benetti, R. Kotak, G. Pignata, H. Navasardyan, P. Mazzali, R. Amanullah, G. Garavini, S. Nobili and 22 more. 2007

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Aims. We present a study of the optical and near-infrared (NIR) properties of the Type Ia Supernova (SN Ia) 2003du. Methods. An extensive set of optical and NIR photometry and low-resolution long-slit spectra was obtained using a number of facilities. The observations started 13 days before B -band maximum light and continued for 480 days with exceptionally good time sampling. The optical photometry was calibrated through the S-correction technique. Results. The ${\it UBVRIJHK}$ light curves and the color indices of SN 2003du closely resemble those of normal SNe Ia. SN 2003du reached a B -band maximum of 13.49 ± 0.02 mag on JD2 452 766.38 ± 0.5. We derive a B -band stretch parameter of $0.988 \pm0.003$, which corresponds to $\Delta m_{15}=1.02\,\pm0.05$, indicative of a SN Ia of standard luminosity. The reddening in the host galaxy was estimated by three methods, and was consistently found to be negligible. Using an updated calibration of the V and ${\it JHK}$ absolute magnitudes of SNe Ia, we find a distance modulus $\mu=32.79\pm0.15$ mag to the host galaxy, UGC 9391. We measure a peak ${\it uvoir}$ bolometric luminosity of $1.35(\pm0.20)\times10^{43}$ erg s -1 and Arnett's rule implies that $M_{^{56}{\rm Ni}}\simeq0.68 \pm0.14\,M_{\odot}$ of $\element[][56]{Ni}$ was synthesized during the explosion. Modeling of the ${\it uvoir}$ bolometric light curve also indicates $M_{^{56}{\rm Ni}}$ in the range $0.6{-}0.8\,M_{\odot}$. The spectral evolution of SN 2003du at both optical and NIR wavelengths also closely resembles normal SNe Ia. In particular, the $\ion{Si}{ii}$ ratio at maximum $\mathcal{R}$($\ion{Si}{ii}$) = $0.22\,\pm0.02$ and the time evolution of the blueshift velocities of the absorption line minima are typical. The pre-maximum spectra of SN 2003du showed conspicuous high-velocity features in the $\ion{Ca}{ii}$ H&K doublet and infrared triplet, and possibly in $\ion{Si}{ii}$ λ 6355, lines. We compare the time evolution of the profiles of these lines with other well-observed SNe Ia and we suggest that the peculiar pre-maximum evolution of $\ion{Si}{ii}$ λ 6355 line in many SNe Ia is due to the presence of two blended absorption components.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/8e001d3587045de48491e7e6d1cb429ca438e991

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Citations in the corpus

• CfA4: LIGHT CURVES FOR 94 TYPE Ia SUPERNOVAE (2012, background): “…et al. 2000, 2001, 2003, 2004b, 2004c, 2006), the European Supernova Collaboration has published photometry of various nearby SNe Ia (see Stanishev et al. 2007; Elias-Rosa et al. 2008; Taubenberger et al. 2008, and references therein), and Kowalski et al. (2008) published eight nearby…”
• THE SPECTROSCOPIC DIVERSITY OF TYPE Ia SUPERNOVAE (2000, result): “…et al. 2005 2002bo Benetti et al. 2004a 2002dj Pignata et al. 2008a 2002er Kotak et al. 2005 2003cg Elias-Rosa et al. 2006a 2003du Anupama et al. 2005a, Stanishev et al. 2007 2003fg Howell et al. 2006 2003hv Leloudas et al. 2009 2004S Krisciunas et al. 2007a 2004dt Altavilla et al. 2007 2004eo…”
• NORMAL TYPE Ia SUPERNOVAE FROM VIOLENT MERGERS OF WHITE DWARF BINARIES (2012, methodology): “For comparison we overplot an observed spectrum of the normal SN 2003du (Stanishev et al. 2007) at the same epoch.”
• SUB-CHANDRASEKHAR MASS MODELS FOR SUPERNOVAE (2010, background): “In our models, the outer shell results in a faster decline in the U- and B-band light curves after peak, leading to a poor (although not terrible) fit to the observed light curve of the normal SN Ia SN 2003du (Stanishev et al. 2007).”
• IMPROVED DISTANCES TO TYPE Ia SUPERNOVAE WITH TWO SPECTROSCOPIC SUBCLASSES (2009, unknown): “…SNe 1989B, 1994D, 1997dt, 1998aq, 1998bu, 1999ee, 2003cg, 2003du, 2004eo, and 2005cf (Barbon et al. 1990; Patat et al. 1996; M08; Branch et al. 2003; Hamuy et al. 2002; Elisa-Rosa et al. 2006; Stanishev et al. 2007; Pastorello et al. 2007; Garavini et al. 2007; Wang et al. 2009). are available.”
• TYPE Ia SUPERNOVA LIGHT CURVE INFERENCE: HIERARCHICAL MODELS IN THE OPTICAL AND NEAR-INFRARED (2010, background): “…published light curves from the literature (Jha et al. 1999; Hernandez et al. 2000; Krisciunas et al. 2000, 2001; Di Paola et al. 2002; Valentini et al. 2003; Krisciunas et al. 2003, 2004b, 2004c, 2007; Elias-Rosa et al. 2006; Pastorello et al. 2007; Stanishev et al. 2007; Pignata et al. 2008).”
• CfA3: 185 TYPE Ia SUPERNOVA LIGHT CURVES FROM THE CfA (2009, background): “…published a significant number (Krisciunas et al. 2000, 2001, 2003, 2004a, 2004b, 2006), the European Supernova Collaboration has published photometry of several nearby SNe Ia (see Stanishev et al. 2007, and references therein), and Kowalski et al. (2008) recently published eight nearby SNe Ia.”
• High luminosity, slow ejecta and persistent carbon lines: SN 2009dc challenges thermonuclear explosion scenarios (2010, unknown): “7 (top panel), along with those of the normal Type Ia SNe 2003du [Stanishev et al. 2007a, m15(B) = 1.02], 2001el [Krisciunas et al. 2003, m15(B) = 1.13] and 2004eo [Pastorello et al. 2007b, m15(B) = 1.46], the subluminous SN Ia 1999by [Garnavich et al. 2004, m15(B) = 1.90], the superluminous SN Ia…”
• Fourteen months of observations of the possible super-Chandrasekhar mass Type Ia Supernova 2009dc (2010, background): “4 shows the late-time behaviour of SN 2009dc in comparison to late-time photometry of SN 2003du, a typical SN Ia, taken from Stanishev et al. (2007), and the linear decay rates found using data ∼50–150 d after maximum.”
• Optical and Near-Infrared Observations of the Highly Reddened, Rapidly Expanding Type Ia Supernova SN 2006X in M100 (2007, background): “The comparison spectra of SNe 1996X and 1998bu are from the Suspect online supernova spectrum archive (contributed by Salvo et al. 2001 and Jha et al. 1999; see http://bruford.nhn.ou.edu/∼suspect), and the spectra of SN 2003du are from Stanishev et al. (2007).”
• Constraining the Type Ia Supernova Progenitor: The Search for Hydrogen in Nebular Spectra (2006, methodology): “…the SNe at our spectral epochs by first extrapolating the early-time light curves to day 200 through comparison with the light curves of SN 2003du (Stanishev et al. 2007), and then applying the latetime Type Ia decay rates reported by Lair et al. (2006; V ¼ 1:46 mag 100 day 1, R ¼ 1:54 mag 100…”
• Comparative Direct Analysis of Type Ia Supernova Spectra. I. SN 1994D (2005, result): “As shown in previous papers (Chornock et al. 2006; Phillips et al. 2007; Stanishev et al. 2007), at multiple epochs the spectra of SN 2002cx and SN 2005hk are very similar.”
• RESULTS OF THE LICK OBSERVATORY SUPERNOVA SEARCH FOLLOW-UP PHOTOMETRY PROGRAM: BVRI LIGHT CURVES OF 165 TYPE Ia SUPERNOVAE (2010, background): “Stanishev et al. (2007) present extensive UBVRI photometry of SN 2003du in the nearby galaxy UGC 09391.”