arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1302.1292astro-ph.CO
收藏

附近超新星工厂的SN 2011 fe光谱时间序列

Spectrophotometric time series of SN 2011fe from the Nearby Supernova Factory

R. Pereira, R. C. Thomas, G. Aldering, P. Antilogus, C. Baltay, S. Benitez-Herrera, S. Bongard, C. Buton, A. Canto, F. Cellier-Holzem, J. Chen, M. Childress, N.… 展开作者

R. Pereira, R. C. Thomas, G. Aldering, P. Antilogus, C. Baltay, S. Benitez-Herrera, S. Bongard, C. Buton, A. Canto, F. Cellier-Holzem, J. Chen, M. Childress, N. Chotard, Y. Copin, H. K. Fakhouri, M. Fink, D. Fouchez, E. Gangler, J. Guy, W. Hillebrandt, E. Y. Hsiao, M. Kerschhaggl, M. Kowalski, M. Kromer, J. Nordin, P. Nugent, K. Paech, R. Pain, E. Pécontal, S. Perlmutter, D. Rabinowitz, M. Rigault, K. Runge, C. Saunders, G. Smadja, C. Tao, S. Taubenberger, A. Tilquin, C. Wu

摘要:

我们提出了32个时期的光学(3300-9700欧姆)分光光度观测附近的典型的“正常”Ia型超新星(SN Ia)SN 2011 fe在星系M101,从-15到+97 d相对于B带的最大值,获得了附近的超新星工厂合作。SN 2011 fe是自现代大规模超新星观测计划出现以来观测到的最接近(μ= 29.04)和最亮(Bmax = 9.94等)的Ia超新星。合成光变曲线测量和光谱特征分析均证明SN 2011 fe的正态性。几乎没有证据表明它的宿主星系会变红。数据集的均匀校准、密集的时间采样和高信噪比使其独一无二。因此,它非常适合详细研究超新星Ia爆炸的物理学,并进一步将超新星Ia用作宇宙学的可测量蜡烛。几个这样的应用程序示出,从创建一个测辐射热的光变曲线和测量的56镍质量,模拟未燃碳的检测阈值,直接比较与其他超新星Ia,和现有的光谱模板。

英文摘要:

We present 32 epochs of optical (3300-9700 Å) spectrophotometric observations of the nearby quintessential "normal" type Ia supernova (SN Ia) SN 2011fe in the galaxy M101, extending from -15 to +97 d with respect to B-band maximum, obtained by the Nearby Supernova Factory collaboration. SN 2011fe is the closest (μ= 29.04) and brightest (Bmax = 9.94 mag) SN Ia observed since the advent of modern large scale programs for the intensive periodic followup of supernovae. Both synthetic light curve measurements and spectral feature analysis attest to the normality of SN 2011fe. There is very little evidence for reddening in its host galaxy. The homogeneous calibration, intensive time sampling, and high signal-to-noise ratio of the data set make it unique. Thus it is ideal for studying the physics of SN Ia explosions in detail, and for furthering the use of SNe Ia as standardizable candles for cosmology. Several such applications are shown, from the creation of a bolometric light curve and measurement of the 56Ni mass, to the simulation of detection thresholds for unburned carbon, direct comparisons with other SNe Ia, and existing spectral templates.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑