|
Size: 1919
Comment:
|
← Revision 22 as of 2009-07-28 22:46:23 ⇥
Size: 1787
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 4: | Line 4: |
| [[Anchor(beginOfPage)]] | <<Anchor(beginOfPage)>> |
| Line 8: | Line 8: |
| [[TableOfContents(3)]] | Note that this page is outdated and has been replaced by [[http://www.iram.es/IRAMES/mainWiki/HeraforAstronomers|a new HERA page]] (CK, 29.7.09) ------- ------- ------- |
| Line 13: | Line 17: |
| HERA is a heterodyne receiver array for the IRAM 30m telescope. It consists of two arrays of 3x3 pixels with 24" spacing. The two arrays have orthogonal polarization (V, H) the two polarizations pointing at identical locations on the sky. The instantaneous bandwidth of each pixel is 1 GHz. HERA is equipped with a derotator allowing to follow a source in the sky maintaining the same "footprint". The tunable range is between 215 and 272 GHz. In this range the beamwidth varies between 12" and 9". The beam efficiency is between 0.57 and 0.42. | HERA is a heterodyne receiver array for the IRAM 30m telescope. It consists of two arrays of 3x3 pixels with 24" spacing. The two arrays have orthogonal polarization (V, H) the two polarizations pointing at identical locations on the sky. The instantaneous bandwidth of each pixel is 1 GHz. HERA is equipped with a derotator allowing to follow a source in the sky maintaining the same "footprint". The tunable range is between 215 and 272 GHz. In this range the beamwidth varies between 12" and 9". |
| Line 16: | Line 20: |
| * [http://www.iram.es/IRAMES/otherDocuments/manuals/HERA_manual_v20.pdf HERA manual, version 2.0] by Schuster et al. 2006 | * [[http://www.iram.es/IRAMES/otherDocuments/manuals/HERA_manual_v20.pdf|HERA manual, version 2.0]] by Schuster et al. 2006 |
| Line 18: | Line 22: |
| * [http://esoads.eso.org/abs/2004A%26A...423.1171S Schuster et al. 2004, A&A, 423, 1171] A 230 GHz Heterodyne Receiver Array for the IRAM 30m telescope ([http://www.iram.es/IRAMES/otherDocuments/manuals/0179hera.pdf local copy]) | * [[http://esoads.eso.org/abs/2004A%26A...423.1171S|Schuster et al. 2004, A&A, 423, 1171]] A 230 GHz Heterodyne Receiver Array for the IRAM 30m telescope ([[http://www.iram.es/IRAMES/otherDocuments/manuals/0179hera.pdf|local copy]]) |
| Line 20: | Line 24: |
| [#beginOfPage Back to top] | |
| Line 22: | Line 25: |
| == Status == * see [http://www.iram.es/IRAMES/mainWiki/TelescopeSystemStatus the Telescope Status page] [#beginOfPage Back to top] The local contact for HERA is Albrecht Sievers: http://www.iram.es/IRAMES/personal/sievers/sievers.gif |
[[#beginOfPage|Back to top]] |
Note that this page is outdated and has been replaced by a new HERA page (CK, 29.7.09)
Overview, manual, literature
HERA is a heterodyne receiver array for the IRAM 30m telescope. It consists of two arrays of 3x3 pixels with 24" spacing. The two arrays have orthogonal polarization (V, H) the two polarizations pointing at identical locations on the sky. The instantaneous bandwidth of each pixel is 1 GHz. HERA is equipped with a derotator allowing to follow a source in the sky maintaining the same "footprint". The tunable range is between 215 and 272 GHz. In this range the beamwidth varies between 12" and 9".
HERA manual, version 2.0 by Schuster et al. 2006
Schuster et al. 2004, A&A, 423, 1171 A 230 GHz Heterodyne Receiver Array for the IRAM 30m telescope (local copy)