Differences between revisions 1 and 4 (spanning 3 versions)
⇤ ← Revision 1 as of 2009-02-13 18:26:18 →
Size: 1044
Editor: visitor3
Comment:
← Revision 4 as of 2009-02-16 13:02:07 → ⇥
Size: 1611
Editor: visitor3
Comment:
Deletions are marked like this. Additions are marked like this.
Line 1: Line 1:
==== HERA 1mm array receiver ====
Line 2: Line 3:
 * 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].

 * 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 12: Line 11:

 1. 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])

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.

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