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SHAO Astrophysics Colloquia

Title: Galaxy formation and spatial alignment

Speaker: Dr Xi Kang (Purple Mountain Observatory, CAS))

Time: 3 PM, Apr. 27th (Thursday)

Abstract:

Galaxies are the fundamental units and building blocks of the Universe. Vast progress has been made in both observational and theoretical studies. In this talk I will introduce two basic tools, semi-analytical model and hydro-dynamical simulations, for modeling galaxy formation. I will highlight their progress, challenges and future prospects. In the mean time, galaxy spatial alignment contains rich information of how galaxies are accretion and shaped by the large-scale environment, I will also shortly introduce our recent work on understanding the correlation between galaxy spin and the large-scale structure.

Seminar talk

Speaker: Maryam Samadi (Ferdowsi university of Mashhad)

Title: How does a magnetic field change the vertical structure of a hot accretion flow?

Time: 10:00 am, Apr. 28th

Location: 1715

Abstract:

There are some considerable evidences of the existence of asymmetric jets in extragalactic radio sources such as Cygnus X-3, M87 and M81. To explain these asymmetrical matter ejections, some scientists believe there is an intrinsically reason. In our recent paper, we have investigated one probable reason for emerging these asymmetric outflows which is based on the special configuration of magnetic field. In my talk, I will briefly speak about 1) popular models of black hole accretion disks, 2)magnetic field's roles in accretion disks. At the end, I will present my results with considering symmetric and asymmetric magnetic field in hot accretion disks.

Group meetings

Black hole Accretion and High-energy Astrophysics /Black Hole Feedback and Cosmic Ray Astrophysics Seminar

Location: 1608

Time: 14:00-16:00, Wednesday(April 26th)

Speaker: Fuguo Xie

Title:  The fast-rise-exponential-decay lightcurve in LLAGN NGC 7213

Speaker: Xiaodong Duan

Title: Mass transport by buoyant bubbles in galaxy clusters

http://adsabs.harvard.edu/abs/2010MNRAS.406.2023P

Visitors

Name: Prof. Paul Wiita

Affiliation: The College of New Jersey, USA

Dates: 19/04/2017-12/05/2017

Host: Prof. Minfeng Gu

Office: 1519

 
中心简介
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    天体物理研究室是上海天文台从事基础天体物理研究的主要机构,包括12个科研团组。研究室的研究方向涉及黑洞和高能天体物理、星系形成与演化、宇宙大尺度 结构、星团和银河系结构、恒星形成、以及行星天体物理等领域,在黑洞吸积与喷流理论、黑洞和星系的共同演化、银河系结构与动力学、计算天体物理等方向具有一定的国际影响力。研究室现有固定研究人员固定研究人员45名,博士后16名,研究生65名。固定研究人员中包括国家杰出青年基金获得者3人、优秀青年基金获得者2人、科学院“百人计划”入选者9人。
    研究室与国内外的天文研究机构有着密切的合作关系,与中国科技大学联合成立了“中国科学院星系和宇宙学重点实验室”,与厦门大学成立了天体物理联合中心。研究室还参与了多项国际、国内天文项目和观测计划,如LAMOST、HXMT、SDSS-IV、TMT、LSST、FAST等。
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