Lunch Seminar 2015

2012 | 2013 | 2014| 2015

The lunch seminar at Galaxy and Cosmology (G&C) Division of NAOC is held on Wednesdays (except holidays), starting from 12:00pm at A508. It is an informal seminar, discussing the recent progress on almost all the aspects of the astronomy and astrophysics, covering from the small scale structure and its dynamics of the star and galaxy, to the large scale of the Universe. All the G&C members are encouraged to attend, and the other NAOC members are also welcome. We also welcome the volunteer as a speaker volunteer, especially from other institutes. In case you are willing to do the talk, please feel free to contact either Dr. Lijun Gou (, or Dr. Stephen Justham (, Dr. Qi Guo (, Dr. Ran Li (  For other questions about the talk (e.g., format of the talk, subscription to the mailing-list), please contact Ms. Shumei Wu (

Lunch for all attendees will be served for free.  However, please note that the price of taking food for free is that you are agreeing to participate by presenting something when asked to do so. You may expect to be asked to summarise a paper once or twice per semester.

If you will come, please order food BEFORE 10:00 am on that day. If you have any visitors who will be attending and who wish to eat lunch, please also order for them.

Lastly, the description of the talk format is here.


G&C Division Lunch @ 2015





Jan. 7th, A508

Radial migration in the Galactic disk: when and where it occurs. (Prof. Chao Liu, NAOC)

Assembly history of dark matter subhalo in LCDM (Dr. Lizhi Xie, INAF, Italy)


Jan. 14th, A508

Local Analogs for High-redshift Galaxies: Resembling the Physical Conditions of Interstellar Medium in High-redshift Galaxies (Fuyan Bian, Mt Stromlo Observatory, The Australian National University)

Weak Hard X-ray Emission from Broad Absorption Line (BAL) Quasars Observed with NuSTAR: Evidence for *Intrinsic* X-ray Weakness (Bin Luo, Pennsylvania State University)


Jan. 21th, A508

The first lensed supernovae: discovery & surprises (Shude Mao, NAOC)



4th, A508

Cosmological Constraints from the Redshift Dependence of the Alcock-Paczynski Test (Dr. Xiaodong Li, Korea Institute for Advanced Study)

Tracking Cosmic Ray Particles with Smartphone App CRAYFIS (Ms. Liaoshan Shi, CERN/Sun Yat-sen Univ.)



25th, A508

The Galactic Center as a Unique Laboratory for a New Physics (Dr. Alex Zakharov, ITEP, Moscow/Russia)

On the Contribution of "Fresh" Cosmic Rays to the Excesses of Secondary Particles (Dr. Yiqing Guo, IHEP)



1st, A508

Systematic effects on constraining gravity theories from galaxy redshift surveys  (Teppei Okumura, Kavli IPMU, The University of Tokyo)

HI mapping of mid-infrared bright, low metallicity Blue Compact Dwarf galaxies  (Yogesh Chandola, NAOC)



15th, A508

Cosmic voids as cosmological observables (Dr. Baojiu Li, Durham Univ.)

The Evolution of the Milky Way Ecosystem: walking Australia and China’s shared path to the Square Kilometre Array (Prof. Naomi McClure-Griffiths, Australian National Univ.)



22th, A508

A Bayesian Approach to Multi-Messenger Astronomy: CBC, GRB and Galaxy (Prof. Xilong Fan, Hubei University of Education)
Testing Spacetime Symmetries with Radio Pulsars (Lijing Shao, Physics Dept. of PKU)


29th, A508

The exciting discoveries of radio astronomy - are there more to come? (Prof. Richard Wielebinski, Max-Planck-Institut für Radioastronomie)
Exoplanet searches with gravitational microlensing: polarization aspects (Alexander Zakharov, ITEP, Moscow/Russia )


06th, A508

Influence of Perturbations on Pulsar Radio Emission(R. T. Gangadhara, Indian Institute of Astrophysics, Bangalore)
From Cloud Cores to Protostars (Facts, Fiction, and Speculation)( Doug Johnstone, National Research Council Canada, Herzberg Institute of Astrophysics)


13th, A508

The Efficiency of Galaxy Formation on the Smallest Scales: Lessons from Virgo. (James Taylor, University of Waterloo) 
The Effective Field Theory approach to Dark Energy phenomenology. ( Marco Raveri, SISSA)


20th, A508

X-ray Absorption Variability to Probe AGN Torus(  Guang Yang,  Penn State University)
Measuring the speed of cosmological gravitational waves(Marco Raveri, SISSA)


27th, A508

The concentration of galaxy clusters from CFHTLenS(Wei Du ,NAOC) 
Modeling nonlinear power spectrum of galaxies in redshift surveys using N-body simulations and perturbation theory(Teppei Okumura ,IPMU)


10th, A508

X-ray observations of the hot gas in clusters of galaxies and cluster galaxies (Dr Biao Zhang, USTC)
What can LAMOST tell us about the Galactic halo? (Dr. Jeff Carlin, Rensselaer Polytechnic Institute, USA)


1st, A508

Opportunities and Challenges in Astrochemistry (Dr. Xiaohu Li, NAOC)
The Sloan Lens ACS Survey. XII. Extending Strong Lenses to Lower Masses (Dr. Yiping Shu, NAOC)


8th, A508

Outflows and Bubbles in Taurus: Star-formation Feedback Sufficient to Maintain Turbulence (Dr. Hui-Xian Li, NAOC)
Stacking analysis of the X-ray spectra of AGN (Zhu Liu, NAOC)


16th, A508

Understanding the Galactic Bulge high-velocity stars with the APOGEE survey  (Yingying Zhou, SHAO).
A probable milli-parsec supermassive binary black hole in the nearest quasar Mrk231  (Changshuo Yan, NAOC)


23th, A508

 Gas Kinematics in a Galaxy’s Circumgalacitc Medium (CGM): Simulation and Observation (Yong Zheng, Columbia University)
Living la vida loca: how to assemble a massive dead galaxy by z=1.0-1.5 (Helena Domínguez Sánchez,Universidad Complutense Madrid)


14th, A508

What is gravity doing in star-forming regions?  ( Guangxing Li, MPA)
What can we learn from the major-merger star-forming galaxy simulation? ( E. Athanassoula, LAM)


28th, A508

The age-space-kinematic features in the Galactic outer disk. ( Chao Liu (NAOC)
A strong lensing galaxy catalogue from the Illustris simulation: dark matter fraction and density profiles. (Dandan Xu,HIT)


11th, A508

Helical Magnetic Fields in the NGC 1333 IRAS 4A Protostellar Outflows(Tao-Chung Ching (National Tsinghua University, Taiwan)

Evolution of Binary Supermassive Black Holes in Cosmological Mergers of Galaxies(Fazeel Mahmood Khan (Institute of Space Technology, Islamabad, Pakistan)



18th, A508

 The Innermost Mass Distribution of the Gravitational Lens SDP.81 from ALMA Observations (Dr. Kenneth Wong, NAOJ)
  Detecting the Supernova Neutrino Background (Dr. Jarah Evslin, Institute of Modern Physics, CAS)


2nd, A508

The Gaia mission - two years after launch (Dr. Nami Mowlavi, University of Geneva)


09th, A508

 Kinetic Temperatures of Molecular Gas: The Galactic Center Region (Dr. Christian Henkel, MPIR)
 A discrete chemo-dynamical model of the giant elliptical NGC 5846 (Dr. Ling Zhu, MPIA)


16th, A508

 Colliding star clusters and their merger products (Dr. M.B.N. (Thijs) Kouwenhoven, Peking University)
 Multi-messenger astronomy: What we can learn and how to perform (Dr. Yi-Ming Hu  Max-Planck Institute for Gravitational Physics)


23th, A508

  HI-based Star Formation  (Dr. Lizhi Xie, Trieste, Italy)
   TBD (Dr. Li Zeng, Harvard University)


30th, A508