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 * HERA cannot be combined with other receivers.
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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 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". Over the range of tunable frequencies, the beamwidth varies between 12" and 9".
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  * Observations with HERA in combination with EMIR or MAMBO, are not possible.

HERA 1mm array receiver

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". Over the range of tunable frequencies, the beamwidth varies between 12" and 9".

HeraforAstronomers (last edited 2015-05-28 08:55:59 by CarstenKramer)