Megamaser Disk Galaxies and Secular Black Hole Growth

巨型漩涡盘星系和长期黑洞生长

• 批准号: 1310405
• 负责人: Jenny Greene
• 金额: $ 22.35万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1310405&HistoricalAwards=false
• 关键词: Megamaser; Disk; Galaxies; Secular; Black

This program will study the mechanics and implications of black hole accretion in passively evolving spiral galaxies using a unique sample of disk galaxies hosting water megamasers in their nuclei. Feeding of the black hole will be assessed by measuring the kinematics of the masers from scales of tens of parsecs down to tenths of parsecs. Dr. Greene will compare the stellar and gaseous kinematics on 20 parsec scales from adaptive-optics plus integral-field spectroscopy, to the orientation of the megamaser disk on sub-parsec scales, to learn how the gas accretes onto the disk. She will determine whether secular (long-term) evolution leads to tight correlations between black hole mass and galaxy properties, including bulge kinematics, galaxy mass, and dark halo mass.Broader impacts of the work include training of undergraduate and graduate students, outreach via public lectures, and teaching math to inmates through the Prison Teaching Initiative.

该程序将使用独特的磁盘星系样品在其核中托管水象征物的独特样本来研究黑洞积聚在被动发展的螺旋星系中的力学和含义。 黑洞的进食将通过测量肉饼尺度到十分之一的parsec的尺度来评估masers的运动学。 Greene博士将在20个parsec量表上比较从适应性镜头加上积分场光谱的恒星和气态运动学，与亚比sec尺度上的Megamaser磁盘的方向，以了解气体如何吸收磁盘上。 她将确定世俗的（长期）进化是否会导致黑洞质量与星系特性之间的密切相关性，包括隆起运动学，银河系质量和黑暗晕盘大众的影响，包括对本科生和研究生的培训，包括通过公共讲座进行培训，以及通过公共讲座以及通过监狱教学的数学来教学。