Fujia Du

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

Kunlun Dark Universe Survey Telescope

-band magnitude declining from

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

17.23\pm0.13

The AST3 project: Antarctic Survey Telescopes for Dome A

magnitude to

Control system for the first three Antarctic Survey Telescopes (AST3-1)

17.72\pm0.09

Introduction of Chinese Antarctic optical telescopes

magnitude in

Performance of the second Antarctic Survey telescopes at Dome A

\sim 1.8

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

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

Variable Stars Observed in the Galactic Disk by AST3-1 from Dome A, Antarctica

\sim 10^{-2}