Zhengyang Li

Optical observations of LIGO source GW 170817 by the Antarctic Survey Telescopes at Dome A, Antarctica

The LIGO detection of gravitational waves (GW) from merging black holes in 2015 marked the beginning of a new era in observational astronomy. The detection of an electromagnetic signal from a GW source is the critical next step to explore in detail the physics involved. The Antarctic Survey Telescopes (AST3), located at Dome A, Antarctica, is uniquely situated for rapid response time-domain astronomy with its continuous night-time coverage during the austral winter. We report optical observations of the GW source (GW~170817) in the nearby galaxy NGC 4993 using AST3. The data show a rapidly fading transient at around 1 day after the GW trigger, with the

Status of the first Antarctic Survey Telescopes for Dome A

i

Searching for the Transit of the Earth-mass Exoplanet Proxima Centauri b in Antarctica: Preliminary Result

-band magnitude declining from

The AST3 project: Antarctic Survey Telescopes for Dome A

17.23\pm0.13

A δ Scuti Variable in the α Persei Cluster: V459 Per

magnitude to

Introduction of Chinese Antarctic optical telescopes

17.72\pm0.09

Performance of the second Antarctic Survey telescopes at Dome A

magnitude in

Progress of Antarctic survey telescopes

\sim 1.8

One of Align Metrologies for Antarctic Telescopes

hour. The brightness and time evolution of the optical transient associated with GW~170817 are broadly consistent with the predictions of models involving merging binary neutron stars. We infer from our data that the merging process ejected about

The bright star survey telescope for the planetary transit survey in Antarctica

\sim 10^{-2}