Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002pasj...54l..59o&link_type=abstract
Publications of the Astronomical Society of Japan, Vol.54, No.5, pp.L59-L62
Astronomy and Astrophysics
Astronomy
5
Instrumentation: Interferometers, Radio Lines: General, Techniques: Spectroscopic
Scientific paper
The first astronomical fringe of a test correlator for the Atacama Large Millimeter/Submillimeter Array (ALMA) is obtained. The newly-developed test correlator system consists of two 4096-Msps Analog-to-Digital Converters (ADCs) and an FX-type correlator that can divide a 2-GHz correlation signal from one baseline into 131072 frequency channels. A fringe spectrum that contains 20 line features as well as continuum emission at ~86.2 GHz was obtained by an interferometric observation of the Orion-KL regions using this test system connected to the Nobeyama Millimeter Array (NMA), demonstrating that the realization of high frequency resolution over a wide bandwidth is technically feasible. The installation of such a correlator system in the ALMA will greatly enhance its capability of multi-line imaging.
Chikada Yoshihiro
Iguchi Satoru
Momose Munetake
Okiura Mahoko
Okumura Sachiko. K.
No associations
LandOfFree
First Astronomical Fringe of a Test Correlator for the ALMA: Simultaneous Achievement of Wideband and High Resolution does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with First Astronomical Fringe of a Test Correlator for the ALMA: Simultaneous Achievement of Wideband and High Resolution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and First Astronomical Fringe of a Test Correlator for the ALMA: Simultaneous Achievement of Wideband and High Resolution will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-935356