Special Lunch talk on Jan. 4th, 2019
Radial resolved galaxy disks models based on semi-analytic models of galaxy formation
Speaker:富坚（上海天文台）/ Jian Fu (SHAO)
Venue:Gewu 4410
Time:12:30 PM, Friday, 4th January, 2018
Abstract:
We show our work on the L-Galaxies semi-analytic models of galaxy formation, which includesthe radial resolved distribution of star, gas, SFR and metallicity on each galaxy disk. The newest version of the codes include the H2-to-HI gas transition prescriptions and the chemical enrichmentof various of elements. Our model now can now give many results on cold gas components, radial metallicity gradients and scaling relations, which can fit the recent observations. We find that the model based on ELUCID haloes can reproduce the HI mass function from ALFALFA 100 at low mass end. On the other hand, our models predict some gas rich low mass galaxies around the Milky Way, which may offer opportunities for future HI 21cm survey in nearby universe by FAST and SKA-1.
Personal Information:
2002-2006 南京大学， 理学学士
2006-2011 中科院上海天文台， 天体物理博士
2011年9月至2013年9月 马普天体物理所博后
2014年至今 上海天文台，副研
2017年入选中科院青促会
工作概况：
工作领域主要集中于星系形成的半解析模型，主要着重于星际介质中的分子原子气体以及对射电望远镜中性氢观测的解释和预言方面的工作，另外也对星系中各种元素的金属丰度梯度结果进行理论模型研究。近几年主要工作包含以下几方面：
(1)模型解释星系中各种HI观测的性质，盘上气体的尺度—质量关系，外侧盘气体指数盘轮廓、矮星系中中性氢气体的失踪卫星星系问题等
(2)预言高红移HI和CO气体以及恒星形成率的观测结果
(3)为FAST望远镜和SKA的中性氢巡天构建mock catalogue，以为之后的巡天工作做理论指导
(4)与国际合作这进行L-Galaxies半解析模型的更新工作
(5)热气体模型冷却改进和X-ray亮度理论模型和观测预言
Doodle:https://doodle.com/poll/6umwrkktg5sms6db
