We present a statistical analysis of 482 6.7 GHz methanol maser sourcesfrom the available literature, on their maser emission and the characteristics oftheir as
Two-station observation of meteors,especially a meteor trains,provides an effec-tive approach to the measurement of the physical parameters. We have collected f
The power spectrum estimator based on the Discrete Wavelet Transfor-mation (DWT) is applied to detect the clustering power in the IRAS Point Source Catalog Reds
We present an astrometric study of the candidates of T Tauri stars(TTS)and non-TTS X-ray sources around Tau-Aur,based on the Hipparcos Catalogue and the ACT Ref
We present optical photometric and spectroscopic studies of ROSAT X-ray stellar sources in the Rosette Nebula star-forming region. The brightest Xray sources ar