论文标题

IA型超新星的近红外观测值对哈勃常数进行了更新的测量

An updated measurement of the Hubble constant from near-infrared observations of Type Ia supernovae

论文作者

Galbany, Lluís, de Jaeger, Thomas, Riess, Adam G., Müller-Bravo, Tomás E., Dhawan, Suhail, Phan, Kim, Stritzinger, Maximillian, Karamehmetoglu, Emir, Leibundgut, Bruno, Peterson, Erik, Kenworthy, W. D'Arcy, Johansson, Joel, Maguire, Kate, Jha, Saurabh W.

论文摘要

我们使用鞋子项目中最近更新的sne ia样本中的近红外(NIR)中使用IA Supernova(sne IA)的类型IA Supernova(sne IA)来介绍Hubble常数($ h_0 $)。我们收集了最多19个校准器SNE IA的公共近红外光度法,并在Hubble流中收集了57 sne IA($ z> 0.01 $),并直接通过高斯工艺和样条线插值来直接测量其在$ j $和$ h $ band中的峰值幅度。校准器峰幅度与基于头孢菌素的距离一起估计每个频段的平均绝对幅度,而哈勃流量SNE则用于约束幅度降低 - 降低速度关系的零点截距。我们的$ H_0 $的基线结果是$ 72.3 \ pm1.4 $(stat)$ \ pm1.4 $(syst)km s $ s $^{ - 1} $ mpc $^{ - 1} $ in $ j $ band和$ j $ band和$ 72.3 \ $ 72.3 \ pm1.3 $(stat)在$ h $频段中,系统的不确定性包括21种分析变体的标准偏差,鞋子锚固锚的0.7 \%距离尺度系统的系统,光度测定Zeropoint Systematic和宇宙差异系统。我们的最终测量代表了两个频段中精度为2.8 \%的测量值。 $ H_0 $变化最大的变体是将样品限制在CSP和CFA程序中的SNE时,值得注意的是,这些变体是最好的校准,产生了$ H_0 \ SIM75 $ km S $ S $^{ - 1} $ MPC $^{ - 1} $。我们证明拉伸和红色的校正在NIR中仍然有用,可以标准化SN IA IA NIR峰幅度。根据我们的结果,为了将$ H_0 $测量的精度提高到将来的NIR中,我们需要增加校准器SNE IA的数量,能够将Hubble-Lema-tre图扩展到高级Z,并包括标准化程序,以帮助减少NIR IntinsinsInstics IntinsInsInsticsStact。

We present a measurement of the Hubble constant ($H_0$) using type Ia supernova (SNe Ia) in the near-infrared (NIR) from the recently updated sample of SNe Ia in nearby galaxies with distances measured via Cepheid period-luminosity relations by the SHOES project. We collect public near-infrared photometry of up to 19 calibrator SNe Ia and further 57 SNe Ia in the Hubble flow ($z>0.01$), and directly measure their peak magnitudes in the $J$ and $H$ band by Gaussian processes and spline interpolation. Calibrator peak magnitudes together with Cepheid-based distances are used to estimate the average absolute magnitude in each band, while Hubble-flow SNe are used to constrain the zero-point intercept of the magnitude-redshift relation. Our baseline result of $H_0$ is $72.3\pm1.4$ (stat) $\pm1.4$ (syst) km s$^{-1}$ Mpc$^{-1}$ in the $J$ band and $72.3\pm1.3$ (stat) $\pm1.4$ (syst) km s$^{-1}$ Mpc$^{-1}$ in the $H$ band, where the systematic uncertainties include the standard deviation of up to 21 variations of the analysis, the 0.7\% distance scale systematic from SHOES Cepheid anchors, a photometric zeropoint systematic, and a cosmic variance systematic. Our final measurement represents a measurement with a precision of 2.8\% in both bands. The variant with the largest change in $H_0$ is when limiting the sample to SNe from CSP and CfA programmes, noteworthy because these are the best calibrated, yielding $H_0\sim75$ km s$^{-1}$ Mpc$^{-1}$ in both bands. We demonstrate stretch and reddening corrections are still useful in the NIR to standardize SN Ia NIR peak magnitudes. Based on our results, in order to improve the precision of the $H_0$ measurement with SNe Ia in the NIR in the future, we would need to increase the number of calibrator SNe Ia, be able to extend the Hubble-Lemaître diagram to higher-z, and include standardization procedures to help reducing the NIR intrinsic scatter.

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