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==== HERA 1mm array receiver ====
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 * 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]. ||'''Rx''' ||#||'''Pol'''|| '''tuning range''' || '''Trx''' || '''IF''' || '''IF Bw''' || '''Gim''' || '''[[http://www.iram.es/IRAMES/mainWiki/TelescopeSystemStatus#HERA|Status]]''' || '''Rem.''' ||
|| || || || '''[GHz]''' || '''[K]''' || '''[GHz]''' || '''[GHz]''' || '''[dB]''' || || ||
||HERA1 || 9|| H || 215-272 || 110-380 || 4 || 1 || ~10 || {{attachment:haken.gif}} || ||
||HERA2 || 9|| V || 215-241 || 120-340 || 4 || 1 || ~10 || {{attachment:haken.gif}} || ||
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 * Four of the 8 A,B,C,D receivers can be used simultaneously. HERA cannot be combined with other 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". Over the range of tunable frequencies, the beamwidth varies between 12" and 9".
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||'''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/otherDocuments/manuals/HERA_manual_v20.pdf|HERA manual, version 2.0]] by Sievers et al. 2006
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 * [http://www.iram.es/IRAMES/groups/receiver/receiver.html More information on the heterodyne receivers.]   * [[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]])

  * 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

Status

Rem.

[GHz]

[K]

[GHz]

[GHz]

[dB]

HERA1

9

H

215-272

110-380

4

1

~10

haken.gif

HERA2

9

V

215-241

120-340

4

1

~10

haken.gif

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)