|
Size: 1830
Comment:
|
Size: 1611
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 1: | Line 1: |
| * Eight single pixel receivers A,B,C,D, and the 3x3 dual-polarisation HERA receiver are installed in the [http://www.iram.es/IRAMES/telescope/telescopeSummary/receiver6.html receiver cabin]. | ==== HERA 1mm array receiver ==== |
| Line 3: | Line 3: |
| * Four of the 8 A,B,C,D receivers can be used simultaneously. HERA cannot be combined with other receivers. | * HERA cannot be combined with other receivers. |
| Line 14: | Line 14: |
| * [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 Sievers et al. 2006 |
HERA 1mm array receiver
- HERA cannot be combined with other receivers.
Rx |
# |
Pol |
Rx combinations |
tuning range |
Trx |
IF |
IF Bw |
Gim |
Rem. |
||||
|
|
|
AB |
CD |
AD |
BC |
|
[GHz] |
[K] |
[GHz] |
[GHz] |
[dB] |
|
HERA1 |
9 |
H |
|
|
|
|
X |
215-272 |
110-380 |
4 |
1 |
~10 |
2.,3. |
HERA2 |
9 |
V |
|
|
|
|
X |
215-241 |
120-340 |
4 |
1 |
~10 |
2.,3. |
[http://www.iram.es/IRAMES/groups/receiver/receiver.html More information on the heterodyne receivers.]
- HERA is a heterodyne receiver array consisting 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. 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".
[http://www.iram.es/IRAMES/otherDocuments/manuals/HERA_manual_v20.pdf HERA manual, version 2.0] by Sievers et al. 2006
[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])