This review gives an introduction to spectrometers and discusses their use within radio
astronomy. While a variety of technologies are introduced, particular emphasis is given to …

The rotational spectral lines of the CCS radical and its isotopic species, CC (S-34),(C-13)
CS, and C (C-13) S, have been observed in the laboratory, and the J (N)= 4 (3)-3 (2), J (N) …

Recently new and interesting science drivers have emerged for very low frequency radio
astronomy from 0.3 MHz to 30 MHz. However Earth bound radio observations at these …

We have developed 1-GHz bandwidth digital spectro-correlator system for the Nobeyama
Millimeter Array (NMA). It consists of 2Gsample/sec· 2bit analog-to-digital (A/D) converters …

Results are presented of observations of the CS (J= 2-1) line and 98-GHz continua of 11
protostellar IRAS sources made with high spatial resolution of 2.8-8.8 arcsec using the …

We have carried out an interferometric survey of 3 mm continuum and CS (J= 2-1) line
emissions from 13 optically invisible protostar candidates and six young T Tauri stars …

Several kinds of techniques are under development for effective correction of a tropospheric
phase fluctuation in millimeter-and submillimeter-wave radio interferometry, including very …

We have mapped CO J= 1-0 outflows from two low-mass protostar candidates in Taurus,
IRAS 04365+ 2535 (TMC1-A) and IRAS 04368+ 2557 (Li 527), using the Nobeyama …

An experiment for compensating interferometer phase fluctuations due to the turbulent
troposphere was conducted with the paired antennas method (PAM) using different sky …

Possible Infall in the Gas Disk around L1551 IRS 5 ADS Classic is now deprecated. It will be
completely retired in October 2019. This page will automatically redirect to the new ADS …