Astronomy with a new 100mK bolometer array for 150GHz

Autor:	Lothar A. Reichertz, B. Weferling, J. Gromke, Ernst Kreysa, W. Esch, H.-P. Gemünd
Rok vydání:	2000
Předmět:	Physics Nuclear and High Energy Physics media_common.quotation_subject Instrumentation Cosmic microwave background Bolometer Astronomy Astrophysics Galaxy law.invention Beamwidth Telescope symbols.namesake Sky law symbols Hubble's law media_common
Zdroj:	Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 444:404-407
ISSN:	0168-9002
Popis:	At the Max-Planck-Institut fur Radioastronomie we built a 19-channel bolometer array for 150 GHz operating at 100 mK. We give an overview of how our new bolometer array is installed at mm/submm telescopes. With results obtained during observing runs at the 10 m HHT and the IRAM 30 m-telescope we illustrate the performance of the instrument. Measurements of the Sunyaev–Zel'dovich effect (SZE) at mm-wavelength towards distant clusters of galaxies allow us to determine the Hubble constant and the radial cluster velocities. In the diffraction limit of a 10 m telescope our instrument's beamwidth matches the size of many clusters of galaxies making it an ideal tool for observations of the SZE. As first measurements we observed the clusters CL0016+16 and A2218 and the blank sky as a control and we present preliminary results of the detection of the SZE.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::47687c1d1a21096f809f4d3abb937e63 https://doi.org/10.1016/s0168-9002(99)01408-4 Zobrazit plný text záznamu Full Text from ScienceDirect