Research News--Xinjiang Astronomical Observatory

中

Home Research News

Research News

Mar 09, 2023

Newly Discovered Near-Earth Object

A new Near-Earth Object has been discovered by the Nanshan One-meter Wide field Telescope (NOWT) of Xinjiang Astronomical Observatory (XAO).A new Near-Earth Object has been discovered by the Nanshan One-meter Wide field Telescope (NOWT) of Xinjiang Astronomical Observatory (XAO).This Near-Earth Object was first observed by the NOWT on Feb. 26. The Minor Planet Center under t...
Mar 09, 2023

An Improvement in detection of high dynamic range and large field-of-view radio sources

Detection of compact faint radio sources of low frequency and total sky observation will be a hot topic in the research of the square kilometer radio array (SKA), and the pre-research on data-oriented algorithms is of great significance ...Detection of compact faint radio sources of low frequency and total sky observation will be a hot topic in the research of the square kilometer radio array (SKA), and the pre-research on data-oriented algorithms is of great significance ...
Nov 14, 2022

Study reveals nature of single-line spectroscopic binary with δ Scuti pulsating star KIC 10417986

Researchers carried out the time-domain spectroscopic observation of KIC 10417986 with the Nanshan 1.2-m Optical Telescope and Xinglong 2.16-m Telescope. They obtained the orbital parameters and stellar parameters of the binary system fo...Binary systems are ideal for accurately identifying the basic physical parameters, such as mass, radius and luminosity, of the stars. In particular, pulsating variable stars are of great significance, as they offer means for detecting th...
Sep 30, 2022

Researchers propose RFI mitigation and signal restoration method for pulsar signals

Using pulsar data collected by the NanShan 26-m Radio Telescope (NSRT) from 2011 to 2014, researchers from the Xinjiang Astronomical Observatory (XAO) of Chinese Academy of Sciences made a study on RFI mitigation and signal restoration, ...Pulsar signals obtained with radio telescopes are extremely weak. Generally, there are two primary difficulties in pulsar signal processing, one is the radio-frequency interference (RFI) mitigation, and the other one is information loss ...
Sep 29, 2022

Emissions in different regions in the pulsar magnetosphere

The researchers from XAO found that the emissions of the different states can be generated in different regions in the pulsar magnetosphere by analyzing the polarization of PSR J0614+2229 and PSR J1938+2213 using FAST observations.Mode changing is an emission phenomenon where the mean pulse profile abruptly changes between two or sometimes more stable states. In theory, the changes of the current flow in the inner acceleration region (IAR) or pulsar magnetosphere ...
Sep 14, 2022

Ultra-wide Bandwidth Observations of 19 Pulsars with Parkes Telescope

The spectrum of pulsars is usually power-law, and pulsars are usually highly polarized. The shape and width of the average pulse profile mainly change with frequencies. Studying the emission intensity, polarization and spectrum of pulse ...

First 11 12 131415 Last

Copyright © Xinjiang Astronomical Observatory
Address：150, Science 1-Street, Urumqi, Xinjiang 830011, China
Tel：0991-3689373Fax：0991-3838628Email：zongheban@xao.ac.cn