SCAR AAA 2025

Session

Optical/Infrared

O/I

17 Sept 2025, 09:20

12. Measure the vertical turbulence profile at Dome A with KLTP

Zhaohui Shang (National Astronomical Observatories, CAS)

17/09/2025, 09:20

Seeing measured by DIMM reflects the adverse effect on observations from the total atmospheric turbulence above the instrument. After seeing has been monitored at Dome A for a few years, we plan to measure the vertical turbulence profile, which enables us to understand the observing conditions better and is essential for the development and operation of future adaptive optics instruments. A...

11. Astrometry and Photometry for Images of All-sky Cameras with KLCAM

Xu Yang (National Astronomical Observatories, Chinese Academy of Sciences)

17/09/2025, 09:40

All-sky cameras are widely used in site testing, fireball triangulation, meteorite recovery, and time-domain astronomy. However, they intrinsically require optics with nonlinear projections, making it challenging to use traditional astrometric and photometric methods. Based on the all-sky camera KunLun Cloud and Aurora Monitor (KLCAM) in Dome-A, we have developed a method to analyse cloud...

5. The 1.4 μm water-vapor-absorption band imaging from Dome A

Bin Ma (Sun Yat-sen University)

17/09/2025, 10:00

The light at wavelength around 1.4 μm is heavily absorbed by water vapor in the atmosphere， creating a spectral gap between the J and H bands. However, Dome A’s exceptionally dry conditions provide a unique opportunity for observations in this band. We developed a custom 1.4 μm filter (1.34 to 1.48 μm), similar to JWST’s F140M filter. After initial testing in Daocheng, China, the filter...

18. Cryoscope Pathfinder: cold telescope for the cold continent

Samaporn Tinyanont (National Astronomical Research Institute of Thailand)

17/09/2025, 10:40

Antarctica is the perfect site for infrared (IR) astronomy, especially at inland sites. At Concordia station, previous observations have shown that the air is cold and dry, such that the IR background at 2.4 micron is only 1% compared to sites at temperate latitudes. Leveraging this "K dark" window unique to Antarctica, we are planning to install a 26-cm fully cryogenic wide-field (16 sq deg)...

1. Cryoscope: the Antarctic infrared surveyor.

Tony Travouillon

17/09/2025, 11:00

The quarter scale prototype of the ultra-wieldfield infrared surveyor is curently in the later part of its construction at Caltech and on track for deployment in 2026. We report on the instrument design, capability and status.