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| '''GISMO - The Goddard-IRAM Superconducting 2 Millimeter Observer tested at the IRAM 30m observatory''' | #acl GismoTeam,NicolasBillot:read,write,delete Default = GISMO = |
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| In October 2008, the GISMO team Johannes Staguhn, Stephen Maher, Elmer Sharp, Dale Fixsen, and Dominic Benford spent two weeks at the 30m observatory to first install their GISMO bolometer in the lab and then in the receiver cabin to test its performance on the sky. GISMO consists of 8x16 pixels with transition edge sensors (TES). The super conducting TES are read out by SQUID multiplexers. The nominal bandwidth is 125-175GHz, pixels are spaced by 14", the telescope HPBW is 17" at 2mm. Data are taken while the telescope is performing Lissajous scan patterns, without switching the secondary, to increase the mapping efficiency. An automated pipeline merges the GISMO data with the telescope data streams to create FITS files, being triggered by the IRAM messaging system. Data are then further reduced using the Goddard data reduction package. | This page is maintained by GB, CK, SL and the GISMO team |
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| The 2mm spectral range provides a unique terrestrial window enabling ground-based observations of the earliest active dusty galaxies in the universe and thereby allowing a better constraint on the star formation rate in these objects. Preliminary results from this second observing run at the 30m telescope look very promising. | <<Anchor(beginOfPage)>> |
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| (CK, 28-Oct-2008) | <<TableOfContents(5)>> |
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| {{attachment:gismo-team.png}} <<BR>> The GISMO team in the control room at the 30m telescope, after one week of 24 hours observing time. From left to right: Stephen Maher, Elmer Sharp, Johannes Staguhn, Dale Fixsen, Dominic Benford (Photo by A.Sievers on October, 27, 2008) * [[http://esoads.eso.org/abs/2008JLTP..151..709S|Staguhn et al. 2008]] GISMO, a 2 mm Bolometer Camera Optimized for the Study of High Redshift Galaxies * [[attachment:SPIE_GISMO_Staguhn.pdf]] * [[attachment:Staguhn_GISMO_SPIE_08_Rev1.pdf]] * [[http://www.astro.umd.edu/people/staguhn.html|Johannes Staguhn]] * [[http://gsfctechnology.gsfc.nasa.gov/Detector.htm|(Goddard)]], * [[http://www.phys.ufl.edu/tes3/pdfs/Benford_TES_Bolometer_Arrays_Poster.pdf|Poster on TES Bolometers]] * [[http://www.submm.caltech.edu/~sharc/crush/index.htm|Crush]] |
---- == Overview == || || Pixels || '''Wavelength''' || '''Bandwidth''' || '''Sensitivity''' || '''HPBW''' || '''Field-of-View''' || '''Spacing''' || || || || mm || '''[GHz]''' || '''[mJy sqrt(s)''' || || || || ||GISMO || 8x16 || 2 || 140-162 || 10 || 16.7" || 1.8'x3.7' || 13.75" || The Goddard-IRAM Superconducting 2mm Observer (GISMO) is a bolometer camera for the IRAM 30m telescope. It has been build by Goddard Space Flight Center, in Greenbelt, Maryland under the lead of Johannes Staguhn. GISMO consists of '''8x16 pixels''' with super conducting transition edge sensors (TES). The TES are read out by time domain SQUID multiplexers built at the National Institute for Standards (NIST), in Boulder, Colorado. The nominal bandwidth is 140-162 GHz (FWHM), pixels are spaced by '''13.75"''', the telescope HPBW is '''16.7"'''. The sensitivity has improved relative to the April 2011 run to about '''10 mJy sqrt(sec)''' (cf. report below). The field-of-view is ''' 1.8'x3.7' '''. Two standard observing modes are offered, Lissajous curves and on-the-fly scans. Both work in total power, without switching the secondary. An automated pipeline merges the GISMO data with the telescope data streams to create FITS files which are automatically processed by the reduction software crush to create logs, pointing results, and a first quick view of the data. Typical overheads for single science targets on the sky are 60%. The relative flux stability is about 8% (cf. report below). ---- == Call for proposals for the Winter Semester 2012/2013 == GISMO is offered again to the community: * [[http://www.iram-institute.org/EN/content-page-169-7-57-169-0-0.html|Call for observing proposals with the 30m]] * [[attachment:TimeEstimator_v2.pdf|Updated guidelines to estimate observing times (Billot et al. 2012)]]. * [[attachment:bruni-aug2012-gismo.pdf|Report on GISMO performance based on the pool run in April-2012 (Bruni et al. 2012)]]. * [[http://www.submm.caltech.edu/~sharc/crush/|crush]] data processing software will be used to reduce all data. == Documentation == * [[attachment:GISMOSoftwareOperationalManual23apr2012.pdf]] by Steve Maher and Johannes Staguhn, April 2012 * [[attachment:GISMONCSInterfaceandFITSFormatv0.5.pdf|GISMO NCS Software Interface and FITS File Description]] by Steve Maher, Attila Kovacs, Albrecht Sievers, April 2012 == Publications == 1. [[http://arxiv.org/abs/1106.2092|Dwek, Staguhn et al. 2011]] ApJ, <<BR>> '''Star and dust formation activities in AzTEC-3: A starburst galaxy at z = 5.3''' 1. [[http://arxiv.org/abs/1103.6225|Arendt et al. 2011]] ApJ, <<BR>> '''The Radio - 2 mm Spectral Index of the Crab Nebula Measured with GISMO''' 1. [[http://arxiv.org/abs/1101.3586|Capack et al. 2011]] Nature, <<BR>> '''A massive proto-cluster of galaxies at a redshift of z~5.3''' 1. [[http://arxiv.org/abs/0907.1300|Dicker et al. 2009]] ApJ, <<BR>> '''90GHz and 150GHz observations of the Orion M42 region. A sub-millimeter to radio analysis''' 1. [[http://iopscience.iop.org/1742-6596/155/1/012001/pdf/jpconf9_155_012001.pdf|Benford, Moseley, Zmuidzinas 2009]] Journal of Physics <<BR>>'''Direct detectors for the Einstein inflation probe''' 1. [[http://www.iram.fr/IRAMFR/ARN/feb09/node12.html|IRAM Newsletter 2/2009]] <<BR>> '''GISMO - The Goddard-IRAM Superconducting 2 Millimeter Observer tested at the IRAM 30m observatory''' 1. [[http://esoads.eso.org/abs/2008JLTP..151..709S|Staguhn et al. 2008]] Journal of Low Temperature Physics, 151, 3, 709 <<BR>>'''GISMO, a 2 mm Bolometer Camera Optimized for the Study of High Redshift Galaxies''' ---- == Support teams == * Overall coordinator: '''Samuel Leclercq''' <leclercq@iram.fr> (IRAM/Grenoble) * GISMO support team: * '''Johannes Staguhn''' <johannes.g.staguhn@nasa.gov> (PI) * Elmer Sharp * Steve Maher * Dale Fixen * Attila Kovacs (crush) * IRAM/Granada support team: * '''Carsten Kramer''' (station manager, <kramer@iram.es>) * Gabriele Bruni (bolometer pool manager, <bruni@iram.es>) * Albrecht Sievers (friend of GISMO, <sievers@iram.es>) * Manuel Gonzalez (heterodyne pool manager, <gonzalez@iram.es>) * Nicolas Billot (30m scheduler, <billot@iram.es>) ---- == Observing Runs == === November 2012 - 2nd pool run === ==== Pool projects and observers ==== * Summer semester 2012 observations will be carried out as pooled observations from a dedicated pool account. G.Bruni will provide login information. * [[http://www.iram.fr/php/rel_sched/bgfiles/12/bolopool-S12.html|List of accepted projects.]] * Progress of observations can be followed via the [[https://herapool.iram.es|pool data base]]. * [[http://www.iram.es/IRAMES/mainWiki/PoolS12 |Pool observers for the November 2012 run]] ==== Observing scripts ==== * GismoObservingScripts provides examples and explanations about how to start !PaKo in order to run the telescope with GISMO, and about total power maps using Lissajous and On-the-fly patterns. Observations using the wobbler will not be offered for this run. The old page GismoHowToObserve is obsolete. * [[https://www.iram.es/IRAMES/mainWiki/GismoPakoNotes|Notes on paKo and NCS for GISMO 2012]] gives additional information on Pakonew and Lissajou observing mode. ==== Daily reports ==== * GismoRun7 === April 2012 1st pool run === In September 2011, GISMO had for the 1st time been offered to the community. Two weeks of dedicated GISMO observations have been carried out during April 2012. ==== Daily reports ==== * GismoRun6 ==== Test plan ==== * TestPlan for the first days of the April run * GismoToDoList ---- === Test runs 2007-2012 === ==== 5th alignment run, March 2012 ==== [[GismoRun5|Go to the 5th run Wiki page]] (installation of GISMO at a permanent position with new optics, baffle and new filter) ==== 4th test run, April 2011 ==== [[GismoRun4|Go to the 4th run Wiki page]] (restricted access, please send an email to SL to obtain the login information) ==== 3rd test run, April 2010 ==== [[GismoRun3|Go to the 3rd run Wiki page]] ==== 2nd test run, October 2008 ==== [[GismoRun2|Go to the 2nd run Wiki page]] ==== 1st test run, November 2007 ==== [[GismoRun1|Go to the 1st run Wiki page]] |
GISMO
This page is maintained by GB, CK, SL and the GISMO team
Contents
Overview
|
Pixels |
Wavelength |
Bandwidth |
Sensitivity |
HPBW |
Field-of-View |
Spacing |
|
|
mm |
[GHz] |
[mJy sqrt(s) |
|
|
|
GISMO |
8x16 |
2 |
140-162 |
10 |
16.7" |
1.8'x3.7' |
13.75" |
The Goddard-IRAM Superconducting 2mm Observer (GISMO) is a bolometer camera for the IRAM 30m telescope. It has been build by Goddard Space Flight Center, in Greenbelt, Maryland under the lead of Johannes Staguhn. GISMO consists of 8x16 pixels with super conducting transition edge sensors (TES). The TES are read out by time domain SQUID multiplexers built at the National Institute for Standards (NIST), in Boulder, Colorado. The nominal bandwidth is 140-162 GHz (FWHM), pixels are spaced by 13.75", the telescope HPBW is 16.7". The sensitivity has improved relative to the April 2011 run to about 10 mJy sqrt(sec) (cf. report below). The field-of-view is 1.8'x3.7' . Two standard observing modes are offered, Lissajous curves and on-the-fly scans. Both work in total power, without switching the secondary. An automated pipeline merges the GISMO data with the telescope data streams to create FITS files which are automatically processed by the reduction software crush to create logs, pointing results, and a first quick view of the data. Typical overheads for single science targets on the sky are 60%. The relative flux stability is about 8% (cf. report below).
Call for proposals for the Winter Semester 2012/2013
GISMO is offered again to the community:
Updated guidelines to estimate observing times (Billot et al. 2012).
Report on GISMO performance based on the pool run in April-2012 (Bruni et al. 2012).
crush data processing software will be used to reduce all data.
Documentation
GISMOSoftwareOperationalManual23apr2012.pdf by Steve Maher and Johannes Staguhn, April 2012
GISMO NCS Software Interface and FITS File Description by Steve Maher, Attila Kovacs, Albrecht Sievers, April 2012
Publications
Dwek, Staguhn et al. 2011 ApJ,
Star and dust formation activities in AzTEC-3: A starburst galaxy at z = 5.3Arendt et al. 2011 ApJ,
The Radio - 2 mm Spectral Index of the Crab Nebula Measured with GISMOCapack et al. 2011 Nature,
A massive proto-cluster of galaxies at a redshift of z~5.3Dicker et al. 2009 ApJ,
90GHz and 150GHz observations of the Orion M42 region. A sub-millimeter to radio analysisBenford, Moseley, Zmuidzinas 2009 Journal of Physics
Direct detectors for the Einstein inflation probeIRAM Newsletter 2/2009
GISMO - The Goddard-IRAM Superconducting 2 Millimeter Observer tested at the IRAM 30m observatoryStaguhn et al. 2008 Journal of Low Temperature Physics, 151, 3, 709
GISMO, a 2 mm Bolometer Camera Optimized for the Study of High Redshift Galaxies
Support teams
Overall coordinator: Samuel Leclercq <leclercq@iram.fr> (IRAM/Grenoble)
- GISMO support team:
Johannes Staguhn <johannes.g.staguhn@nasa.gov> (PI)
- Elmer Sharp
- Steve Maher
- Dale Fixen
- Attila Kovacs (crush)
- IRAM/Granada support team:
Carsten Kramer (station manager, <kramer@iram.es>)
Gabriele Bruni (bolometer pool manager, <bruni@iram.es>)
Albrecht Sievers (friend of GISMO, <sievers@iram.es>)
Manuel Gonzalez (heterodyne pool manager, <gonzalez@iram.es>)
Nicolas Billot (30m scheduler, <billot@iram.es>)
Observing Runs
November 2012 - 2nd pool run
Pool projects and observers
- Summer semester 2012 observations will be carried out as pooled observations from a dedicated pool account. G.Bruni will provide login information.
Progress of observations can be followed via the pool data base.
Observing scripts
GismoObservingScripts provides examples and explanations about how to start PaKo in order to run the telescope with GISMO, and about total power maps using Lissajous and On-the-fly patterns. Observations using the wobbler will not be offered for this run. The old page GismoHowToObserve is obsolete.
Notes on paKo and NCS for GISMO 2012 gives additional information on Pakonew and Lissajou observing mode.
Daily reports
April 2012 1st pool run
In September 2011, GISMO had for the 1st time been offered to the community. Two weeks of dedicated GISMO observations have been carried out during April 2012.
Daily reports
Test plan
TestPlan for the first days of the April run
Test runs 2007-2012
5th alignment run, March 2012
Go to the 5th run Wiki page (installation of GISMO at a permanent position with new optics, baffle and new filter)
4th test run, April 2011
Go to the 4th run Wiki page (restricted access, please send an email to SL to obtain the login information)
3rd test run, April 2010
2nd test run, October 2008