Discovery, Photometry, and Spectroscopy of Supernovae

Filippenko 9417213这项研究代表了一项集中努力，以确定 原始恒星的性质，爆炸机制， 不同类型超新星的核合成产物。 的 结果将对各种各样的主题产生广泛的影响， 星系的化学演化，恒星的诞生率， 宇宙学 所采用的方法主要是观察， 理论建模。 对新超新星的积极探索， 将用自动成像望远镜对附近的星系进行观测 在Leuschner天文台，从而扩展了一项始于 一年前 多色、长时间的光变曲线都足够 明亮的超新星将由第二台机器人望远镜获得， 利克天文台。 还将获得高质量的光学光谱 用最先进的设备来研究 超新星的演化和统计特性。 彻底 对数据的分析应导致制定一个更 完整的分类方案，侧重于基本的 参数 除了更深入地了解它们的起源， 物理特性，所观察到的 附近超新星的性质应该会提高 宇宙学距离测定的超新星。 新 一架已委托的凯克10米望远镜将被用来获取光谱 观测遥远的超新星， 宇宙的速率和整体曲率。 ***

Filippenko 9417213 This research represents a concentrated effort to determine the nature of the progenitor stars, the explosion mechanisms, and the nucleosynthetic products of different types of supernovae. The results will have broad implications for topics as diverse as the chemical evolution of galaxies, the birthrate of pulsars, and cosmology. The adopted approach is largely observational, coupled with theoretical modeling. A vigorous search for new supernovae in nearby galaxies will be conducted with an automated imaging telescope at Leuschner Observatory, thereby extending an effort that began over a year ago. Multi-color, long-term light curves of all sufficiently bright supernovae will be obtained with a second robotic telescope at Lick Observatory. High-quality optical spectra will also be obtained with state-of-the-art equipment in order to study the temporal evolution and statistical properties of supernovae. Thorough analysis of the data should lead to the development of a more complete classification scheme that focuses on fundamental parameters. Besides providing deeper insights into their origins and physical characteristics, quantitative assessment of the observed properties of nearby supernovae should improve the potential of supernovae for cosmological distance determinations. The newly commissioned Keck 10-meter telescope will be used to obtain spectra of very distant supernovae, in an attempt to measure the expansion rate and overall curvature of the Universe. ***