<i>K</i>‐Corrections and Spectral Templates of Type Ia Supernovae

Hsiao, E. Y.; Conley, A.; Howell, D. A.; Sullivan, M.; Pritchet, C. J.; Carlberg, R. G.; Nugent, P.; Phillips, M. M.

doi:10.1086/518232

Cited by 352 publications

(539 citation statements)

References 51 publications

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“…The expected magnitudes for each band of the two (our & standard) photometric systems are derived by assuming the same input spectral energy distribution (SED). In particular, we use i) SN spectral template provided by Hsiao et al (2007) and ii) several S,ED obtained from the Kurucz atmosphere stellar models having different temperatures and chemical compositions. As a result, we find that the A57, page 4 of 16 difference between the magnitude measured with a standard filter Johnson (1965), Bessell (1979Bessell ( , 1990, and the TNT V, R, I filters are smaller than the photometric uncertainties adopted in the present work for our photometric results.…”

Section: Photometric System Characterizationmentioning

confidence: 99%

“…The SN SED is needed to achieve this goal (Leibundgut 1990;Hamuy et al 1993;Nugent et al 2002;Hsiao et al 2007). Briefly, we recall that the K term correction at an effective wavelength λ i in the X band can be written as…”

Section: The K-correctionmentioning

confidence: 99%

“…In the absence of spectral observation of SN 2008fv, we assumed the spectral template provided by Hsiao et al (2007) and obtained as the combination of about 1000 observed spectra of ∼100 SNe. We adopted the specific response curves of our photometric system, both in optical and in the infrared.…”

Section: The K-correctionmentioning

confidence: 99%

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The slowly declining type Ia supernova 2008fv and the near-infrared second maximum

Biscardi

Brocato

Arkharov

et al. 2012

A&A

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Aims. We present optical and near-infrared (NIR) photometry of supernova (SN) 2008fv and a brief investigation of SN type Ia to search for possible correlations between the properties of NIR light curves and the optical decline rate. Methods. We analyse our BVRI and JHK observations to derive light curves (LCs), colour curves, and the bolometric behaviour of SN 2008fv. Data range from about five days before to two months after maximum. We also collect a database of the main characteristics of NIR LCs of SNe Ia available in literature. Results. We find close similarities between the observed LCs of the SN event studied here and SN 2000E. SN 2008fv is a slow-declining SNe Ia with a post-maximum decline of Δm 15,B = 0.96 ± 0.08 mag and a B-band maximum luminosity of M B,0 = −19.40 ± 0.1 mag, close to the value of normal SNe Ia. The optical and NIR data allow us to constrain the host galaxy reddening of NGC 3147, E(B−V) = 0.22 ± 0.05 mag and its distance μ = 33.2 ± 0.1 mag. Furthermore, we derive a synthesized 56 Ni mass of about 0.7 M , by using the well-known relation between the maximum luminosity of the uvoir bolometric light curve and the initial content of 56 Ni. We investigate the correlation between the NIR characteristics of LCs and optical properties by collecting data of a sample of 40 SNe. We derive quantitative relationships involving the epoch of the secondary maximum in the JHK bands and the decline rate Δm 15 (B). Further, we find no correlations between Δm 15 measured in the JHK bands and the optical Δm 15 (B). In contrast, quite evident correlations with the Δm 15 (B) and Δm 40 (J)/Δm 15 (H).

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Section: Photometric System Characterizationmentioning

confidence: 99%

Section: The K-correctionmentioning

confidence: 99%

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The slowly declining type Ia supernova 2008fv and the near-infrared second maximum

Biscardi

Brocato

Arkharov

et al. 2012

A&A

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“…The high apparent brightness allowed us to obtain accurate, high signal-to-noise photometry, while the very low redshift (z = 0. 000804, de Vaucouleurs et al 1991) of its host galaxy, M101 (NGC 5457), eliminates the necessity of K-corrections for the photometry that otherwise would be a major source of systematic errors plaguing the distance determination (Hsiao et al 2007;Hsiao 2009). The low interstellar reddening is also a very fortunate circumstance, because all complications regarding the handling of the effect of interstellar dust (galactic vs. non-standard reddening, disentangling A&A 546, A12 (2012) reddening and intrinsic color variation, etc.)…”

Section: Introductionmentioning

confidence: 99%

Testing supernovae Ia distance measurement methods with SN 2011fe

Vinkó¹,

Sárneczky²,

Takáts³

et al. 2012

A&A

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Aims. The nearby, bright, almost completely unreddened Type Ia supernova 2011fe in M101 provides a unique opportunity to test both the precision and the accuracy of the extragalactic distances derived from SNe Ia light curve fitters. Methods. We applied the current, public versions of the independent light curve fitting codes MLCS2k2 and SALT2 to compute the distance modulus of SN 2011fe from high-precision, multi-color (BVRI) light curves. Results. The results from the two fitting codes confirm that 2011fe is a "normal" (not peculiar) and only slightly reddened SN Ia. New unreddened distance moduli are derived as 29.21 ± 0.07 mag (D ∼ 6.95 ± 0.23 Mpc, MLCS2k2), and 29.05 ± 0.07 mag (6.46 ± 0.21 Mpc). Conclusions. Despite the very good fitting quality achieved with both light curve fitters, the resulting distance moduli are inconsistent by 2σ. Both are marginally consistent (at ∼1σ) with the Hubble Space Telescope key project distance modulus for M101. The SALT2 distance is in good agreement with the recently revised Cepheid-and TRGB-distance to M101. Averaging all SN-and Cepheid-based estimates, the absolute distance to M101 is ∼6.6 ± 0.5 Mpc.

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“…We use the spectrum of Hsiao et al (2007) for the K-correction. Ideally, we should apply a spectrum template based on the proper type of each SN Ia (e.g.…”

Section: Cross-filter K-correctionmentioning

confidence: 99%

Photometric properties of intermediate-redshift Type Ia supernovae observed by the Sloan Digital Sky Survey-II Supernova Survey

Doi¹,

Yasuda²,

Kuncarayakti³

et al. 2016

Mon. Not. R. Astron. Soc.

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We have analyzed multi-band light curves of 328 intermediate redshift (0.05 ≤ z < 0.24) type Ia supernovae (SNe Ia) observed by the Sloan Digital Sky Survey-II Supernova Survey (SDSS-II SN Survey). The multi-band light curves were parameterized by using the Multi-band Stretch Method, which can simply parameterize light curve shapes and peak brightness without dust extinction models. We found that most of the SNe Ia which appeared in red host galaxies (u − r > 2.5) don't have a broad light curve width and the SNe Ia which appeared in blue host galaxies (u − r < 2.0) have a variety of light curve widths. The Kolmogorov-Smirnov test shows that the colour distribution of SNe Ia appeared in red / blue host galaxies is different (significance level of 99.9%). We also investigate the extinction law of host galaxy dust. As a result, we find the value of R v derived from SNe Ia with medium light curve width is consistent with the standard Galactic value. On the other hand, the value of R v derived from SNe Ia that appeared in red host galaxies becomes significantly smaller. These results indicate that there may be two types of SNe Ia with different intrinsic colours, and they are obscured by host galaxy dust with two different properties.

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K‐Corrections and Spectral Templates of Type Ia Supernovae

Cited by 352 publications

References 51 publications

The slowly declining type Ia supernova 2008fv and the near-infrared second maximum

The slowly declining type Ia supernova 2008fv and the near-infrared second maximum

Testing supernovae Ia distance measurement methods with SN 2011fe

Photometric properties of intermediate-redshift Type Ia supernovae observed by the Sloan Digital Sky Survey-II Supernova Survey

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