Diff for "HeraforAstronomers" - www.iram.es Main Wiki

Differences between revisions 3 and 11 (spanning 8 versions)

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		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".

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)
Observations with HERA in combination with EMIR or MAMBO, are not possible.

-  ⇤ ← Revision 3 as of 2009-02-13 18:33:12 → 
  Size: 1614
  Editor: visitor3
  Comment:
+   ← Revision 11 as of 2009-10-06 22:34:42 → ⇥
  Size: 1504
  Editor: 40
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 1:
-Line 4:
+Line 3:
- * HERA cannot be combined with other receivers.
+||'''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}} || '''2.,3.'''||
||HERA2     || 9|| V       || 215-241            || 120-340     ||  4          || 1           || ~10 || {{attachment:haken.gif}} || '''2.,3.'''||
-Line 6:
+Line 8:
-||'''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.'''||
+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".
-Line 11:
+Line 10:
- * [http://www.iram.es/IRAMES/groups/receiver/receiver.html More information on the heterodyne receivers.]
+  * [[http://www.iram.es/IRAMES/otherDocuments/manuals/HERA_manual_v20.pdf|HERA manual, version 2.0]] by Sievers et al. 2006
-Line 13:
+Line 12:
-. 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://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]])
-Line 15:
+Line 14:
-  * [http://www.iram.es/IRAMES/otherDocuments/manuals/HERA_manual_v20.pdf HERA manual, version 2.0] by Schuster 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])
+  * Observations with HERA in combination with EMIR or MAMBO, are not possible.