CAREER: Campaigning for Better Black Hole Mass Relations
CAREER: Campaigning for Better Black Hole Mass Relations
批准号:
1253702
负责人:
Misty Bentz
金额:
$86.28万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2013
资助国家:
美国
项目状态:
已结题
起止时间:
2013-06-01 至 2019-05-31
中文摘要
为了了解超大质量黑洞与其宿主星系之间的物理关系,确定黑洞本身的质量是至关重要的。不幸的是,我们只能直接测量附近星系的黑洞质量。为了充分了解黑洞在宇宙学距离上的能量影响,我们必须转而使用二级指标来估计它们的质量。这些所谓的比例关系是我们了解高红移星系和黑洞的基础,但它们仍然难以确定。PI将执行一项多波长观测计划,旨在通过直接测量黑洞质量来消除活动星系核样本中许多已知的不确定和散射来源。PI将(1)进行新的混响测绘,以测量20个星系的黑洞质量;(2)使用核区的积分场单位观测来测量恒星动力学;以及(3)使用21厘米分光镜得出到宿主星系的距离。这个计划将巩固被社会广泛用于估计宇宙距离的黑洞质量的标度关系,并将为我们在整个宇宙历史上对星系和黑洞的理解铺平道路。PI还将与大亚特兰大女童子军合作,为4-5年级和高中的女童子军创建和举办天文讲习班。国际和平协会的工作将惠及数以千计的年轻女孩,她将鼓励她们对科学和观察自然世界的兴趣。
英文摘要
In order to understand the physical relationship between supermassive black holes and their host galaxies, it is essential to determine the mass of the black hole itself. Unfortunately we are limited to directly measuring black hole masses in nearby galaxies. In order to fully understand the energetic impact of black holes at cosmological distances, we must instead use secondary indicators to estimate their masses. These so-called scaling relationships are fundamental to our knowledge of galaxies and black holes at high redshifts, but they remain poorly determined. The PI will perform a multiwavelength observational program that is targeted at removing many known sources of uncertainty and scatter among a sample of Active Galactic Nuclei with direct black hole mass measurements. The PI will (1) carry out a new reverberation mapping survey to measure black hole masses in 20 galaxies; (2) use integral field unit observations of the nuclear region to measure stellar dynamics; and (3) derive distances to the host galaxies using 21 cm spectroscopy.This program will solidify the scaling relationships that are heavily used by the community for estimating black hole masses at cosmological distances and will pave the way for a significant leap forward in our understanding of galaxies and black holes throughout cosmic history. The PI will also partner with the Girl Scouts of Greater Atlanta to create and present astronomy workshops for Girl Scouts in grades 4-5 and high school. The PI's work will reach thousands of young girls, and she will encourage their interest in science and observations of the natural world.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
Direct Comparisons of Black Hole Mass Measurements
-
批准号:2009230
-
项目类别:Standard Grant
-
资助金额:$45.11万
-
财政年份:2020
-
负责人:Misty Bentz
-
依托单位:
海外基金