Gg Liu

THE LAMOST SPECTROSCOPIC SURVEY OF STAR CLUSTERS IN M31. II. METALLICITIES, AGES, AND MASSES

We select from Paper I a sample of 306 massive star clusters observed with the Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) in the vicinity fields of M31 and M33 and determine their metallicities, ages and masses. Metallicities and ages are estimated by fitting the observed integrated spectra with stellar synthesis population (SSP) models with a pixel-to-pixel spectral fitting technique. Ages for most young clusters are also derived by fitting the multi-band photometric measurements with model spectral energy distributions (SEDs). The estimated cluster ages span a wide range, from several million years to the age of the universe. The numbers of clusters younger and older than 1 Gyr are respectively 46 and 260. With ages and metallicities determined, cluster masses are then estimated by comparing the multi-band photometric measurements with SSP model SEDs. The derived masses range from

Mapping the emission line strengths and kinematics of supernova remnant S147 with extensive LAMOST spectroscopic observations

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Economic Burden of Schizophrenia in China: Based on Medical Insurance Database from Guangzhou City.

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The Cost-Effectiveness Analysis Of Shenfu Injection Combined With Conventional Therapy For Heart Failure Patients In China

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Health Related Quality of Life for Disease Population in China: A Systematic Review

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What are the key concerns of health care providers in china? Qualitative investigation of a double-blind telephone survey

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Economic Evaluation of Diacerein, Diclofenac and Glucosamine for Osteoarthritis in China

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Breast Cancer in China: Room for Improved Screening

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Comparison Between the EQ-5D-5l and the EQ-5D-3l for General Population in China

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