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Size: 1371
Comment:
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Size: 1397
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 3: | Line 3: |
| * HERA cannot be combined with other receivers. | * Observations with HERA in combination with EMIR or MAMBO, are not possible. |
| Line 10: | Line 10: |
HERA 1mm array receiver
- Observations with HERA in combination with EMIR or MAMBO, are not possible.
Rx |
# |
Pol |
tuning range |
Trx |
IF |
IF Bw |
Gim |
Rem. |
|
|
|
[GHz] |
[K] |
[GHz] |
[GHz] |
[dB] |
|
HERA1 |
9 |
H |
215-272 |
110-380 |
4 |
1 |
~10 |
2.,3. |
HERA2 |
9 |
V |
215-241 |
120-340 |
4 |
1 |
~10 |
2.,3. |
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".
HERA manual, version 2.0 by Sievers et al. 2006
Schuster et al. 2004, A&A, 423, 1171 A 230 GHz Heterodyne Receiver Array for the IRAM 30m telescope (local copy)