Overview of VLBI instrument for Millimetron space mission.

Khudchenko A., Smirnov A.V., Turygin S., Andrianov M., Kostenko V., Baryshev A.M., Golubev E., Cherny R., Andrianov A., Ozolin A., Tretyakov I., Arkhipov M., Koshelets V.P., Hesper R., Han S., Lee J., Jung T., Rudnitskiy A., Likhachev S.F.

Тип публикации: Proceedings Article

Дата публикации: 2022-08-31

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DOI: 10.1117/12.2630728

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Краткое описание

Millimetron Space Observatory will be equipped with the cryogenically cooled instruments for a Space-Earth Very Large Baseline Interferometry (S-E VLBI). It will be a heterodyne multichannel receiver including 7mm, 3mm, 1.3mm and (presumably) 0.8mm channel. Two low frequency channels will be based on HEMT amplifiers, while for the high frequencies superconductor-insulator-superconductor (SIS) receivers will be utilized. The VLBI instrument will have a multi frequency capability allowing simultaneous observation using several channels. This mode has a high potential for improving of black hole event horizon observations due to phase transferring capabilities. The multi frequency observation will be provided by a signal split in the input optics and by back-end capabilities.