Featured Science

The Influence of Environment on the Chemical Evolution of Low-mass Galaxies

Astronomers from KIAA at PKU have found a mass dependent star formation timescale of early-type galaxies (ETGs) across a wide mass range. The low mass ETGs depart from this standard relation in extreme environments, suggesting earlier quenching in very dense environments and more extended star formation histories in low-density environments.

Revealing the Orbital Shape Distributions of Exoplanets with China’s LAMOST Telescope

Using data from China’s LAMOST telescope, a team of astronomers have derived how the orbital shapes distribute for extrasolar planets. The work is recently published in the journal “Proceedings of the National Academy of Sciences of the United States of America” (PNAS). The lead authors are Prof. Jiwei Xie from Nanjing University and KIAA faculty member Prof. Subo Dong.

Constraining f(R) Gravity Theory Using CFHTLenS Weak Lensing Peak Statistics

With CFHTLenS Weak Lensing observations, a team from Peking University, Durham University (UK), National Astronomical Observatories, Chinese Academy of Sciences, and Shanghai Normal University, carried out detailed WL peak analyses and derived stringent constraints on the Hu-Sawicki f(R) gravity theory, for the first time, from WL high peak abundance.

The DRAGON globular cluster simulations: a million stars, black holes and gravitational waves

An international team of experts from China and Europe has performed the first simulations of globular clusters with a million stars. These – up to now - largest and most realistic simulations can not only reproduce observed properties of stars in globular clusters at unprecedented detail but also shed light into the dark world of black holes.

ALMA Measures Mass of Black Hole with Extreme Precision

Astronomers from Kavli Institute for Astronomy and Astrophysics (KIAA) at Peking University, University of California, Irvine and other universities have derived a highly precise measurement of the mass of a black hole at the center of a nearby giant elliptical galaxy NGC 1332. Working with high-resolution data from the Atacama Large Millimeter/submillimeter Array in Chile, the scientists were able to determine the speed of a disk of cold molecular gas and dust orbiting the supermassive black hole at the heart of galaxy NGC 1332. From there, they calculated the black hole’s mass to be 664 million times greater than that of the sun.