Scientist

Yanchun Liang

Positions: Director, International Cooperation Department
Academic Title: Professor
E-mail: ycliang@bao.ac.cn
Mailing Address: Yanchun Liang
Education and Career History

Director of International Cooperation Department of NAOC:  Nov. 2013 -
 
PhD Supervisor:  2011.6 -
Professor: 2010.7 -
Associate Professor: 2004.4 – 2010.6
National Astronomical Observatories,
Chinese Academy of Sciences, Beijing, China
 
Post-doc in Astrophysics: 2001.11 – 2002.10, 2003.5 – 2004.3,
Paris-Meudon Observatory, Meudon, France
 
Visitor in Astrophysics: 2002.11 - 2003.4
Institute of Astronomy and Astrophysics, Munich University,
Munich, Germany
 
Ph.D. in Astrophysics: 1998 - 2001
Beijign Astronomical Observatories,
Chinese Academy of Sciences, Beijing, China

Research Fields

Star Formation Rates, metallicities and stellar populations of nearby and distant galaxies
star-forming galaxies
AGNs
hosts of supernova explorations and GRBs
low surface brightness galaxies
E+A galaxies
Galactic Chemical Evolution Models
Element Abundances of Stars
AGB stars
Barium stars

Achievements

We publish a sample of Luminous Infrared Galaxies at intermediate redshift, which provides inportant information on evolution of galaxies.

We derive metallicity calibrations for strong emission line ratios from the SDSS datebase.

Selected Publication

Liang, Yanchun; Shao, Xu; Hammer, Francois; Yin, Shaoying,  The [NII]/Hα calibration of the metallicity of galaxies from Te-based abundances, 2013IAUS..295..337L

Liang, Y. C.; Zhong, G. H.; Hammer, F.; Chen, X. Y.; Liu, F. S.; Gao, D.; Hu, J. Y.; Deng, L. C.; Zhang, B.,  A large sample of low surface brightness disc galaxies from the SDSS- II. Metallicities in surface brightness bins, 2010MNRAS.409..213L

Liang, Y. C.; Chen, X. Y.; Hammer, F.; Rodrigues, M.; Zhao, Y. H.; Zhong, G. H., Comparing six evolutionary population synthesis models, 2010IAUS..262..372L

Liang, Y. C.; Hammer, F.; Yin, S. Y., Checking the reliability of equivalent width R23 to estimate metallicities of galaxies, 2007A&A...474..807L

Liang, Y. C.; Hammer, F.; Yin, S. Y.; Flores, H.; Rodrigues, M.; Yang, Y. B., The direct oxygen abundances of metal-rich galaxies derived from electron temperature, 2007A&A...473..411L 

Liang, Y. C.; Hu, J. Y.; Liu, F. S.; Liu, Z. T.,   SDSS J121811.0+ 465501.2: a new Low Surface Brightness Galaxy with low metallicity , 2007AJ....134..759L  

Liang, Y. C.; Yin, S. Y.; Hammer, F.; Deng, L. C.; Flores, H.; Zhang, B.,  The Oxygen Abundance Calibrations and N/O Abundance Ratios of ~40,000 SDSS Star-forming Galaxie, 2006ApJ...652..257L 

Liang, Y. C.; Hammer, F.; Flores, H., Significant evolution of the stellar mass-metallicity relation since z ~ 0.65 ,  2006A&A...447..113L

Liang, Y. C.; Hammer, F.; Flores, H.; Elbaz, D.; Marcillac, D.; Cesarsky, C. J., The Luminosity-Metallicity relation of distant luminous infrared galaxies, 2004A&A...423..867L  

Liang, Y. C.; Hammer, F.; Flores, H.; Gruel, N.; Assémat, F.,  Misleading results from low-resolution spectroscopy: From galaxy interstellar medium chemistry to cosmic star formation density, 2004A&A...417..905L

Shao, X.; Liang, Y. C.; Dennefeld, M.; Chen, X. Y.; Zhong, G. H.; Hammer, F.; Deng, L. C.; Flores, H.; Zhang, B.; Shi, W. B.; Zhou, L.  Comparing the Host Galaxies of Type Ia, Type II, and Type Ibc Supernovae,  2014ApJ...791...57S

Shi, Wei-Bin; Liang, Yan-Chun; Shao, Xu; Liu, Xiao-Wei; Zhao, Gang; Hammer, Francois; Zhang, Yong; Flores, Hector; Ruan, Gui-Ping; Zhou, Li  Relations between stellar mass and electron temperature-based metallicity for star-forming galaxies in a wide mass range  2014RAA....14..875S

Zhang, Z. T.; Liang, Y. C.; Hammer, F.,  Modelling the narrow-line regions of active galaxies in the Sloan Digital Sky Survey - I. Sample selection and physical conditions,  2013MNRAS.430.2605Z 

Gao, Dong; Liang, Yan-Chun; Liu, Shun-Fang; Zhong, Guo-Hu; Chen, Xiao-Yan; Yang, Yan-Bin; Hammer, Francois; Yang, Guo-Chao; Deng, Li-Cai; Hu, Jing-Yao, Multiwavelength study of nearly face-on low surface brightness disk galaxies,    2010RAA....10.1223G

Zhong, G. H.; Liang, Y. C.; Hammer, F.; Chen, X. Y.; Deng, L. C.; Flores, H., The star formation histories of red and blue low surface brightness disk galaxies,  2010A&A...520A..69Z


Chen, X. Y.; Liang, Y. C.; Hammer, F.; Prugniel, Ph.; Zhong, G. H.; Rodrigues, M.; Zhao, Y. H.; Flores, H.  Comparing six evolutionary population synthesis models by performing spectral synthesis for galaxies,
2010A&A...515A.101C 

Han, X. H.; Hammer, F.; Liang, Y. C.; Flores, H.; Rodrigues, M.; Hou, J. L.; Wei, J. Y., The Wolf-Rayet features and mass-metallicity relation of long-duration gamma-ray burst host galaxies,  2010A&A...514A..24H

Chen, X. Y.; Liang, Y. C.; Hammer, F.; Zhao, Y. H.; Zhong, G. H. Stellar population analysis on local infrared-selected galaxies  009A&A...495..457C 


Zhong, G. H.; Liang, Y. C.; Liu, F. S.; Hammer, F.; Hu, J. Y.; Chen, X. Y.; Deng, L. C.; Zhang, B.  A large sample of low surface brightness disc galaxies from the SDSS - I. The sample and the stellar populations   2008MNRAS.391..986Z

Yin, S. Y.; Liang, Y. C.; Hammer, F.; Brinchmann, J.; Zhang, B.; Deng, L. C.; Flores, H.  Empirical strong-line oxygen abundance calibrations from galaxies  2007A&A...462..535Y 

Shi, F.; Zhao, G.; Liang, Y. C. [Ne III]/[O II] as an oxygen abundance indicator in the H II regions and H II galaxies, 2007A&A...475..409S