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Netherlands Institute for Radio Astronomy
MSSS Update
George Heald(on behalf of the MSSS Team)LSM, 28 November 2012
1
George Heald / LSM / 28-11-2012
MSSS Observing Status
2Webpage in progress
George Heald / LSM / 28-11-2012
Important pipeline note
§ Pipeline currently includes a simple, shallow cleaning strategy
§ Algorithm for automatic deeper cleaning now available
3
Harwood
George Heald / LSM / 28-11-2012
pre-November HBA testing
§ baselines <20km, 25 mJy/beam noise for the field shown here
§ default demixing strategy incorrect; new calibration script now available
§ Other fields donot turn out aswell with auto-processing
§ More workneeded toassess qualityof calibrationsolutions...
4
Williams
H285+51
George Heald / LSM / 28-11-2012
Recent HBA tests
§ Three regions were observed (weekend of 10-11 November):
§ near L227+69 (MSSS Verification Field)
§ near Lockman Hole (no bright sources in vicinity)
§ near(ish) Cygnus A (to ensure no difficulties)
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George Heald / LSM / 28-11-2012
Typical results - see week 46 report
§ Note: only automatic processing used
6
Breton, Broderick
George Heald / LSM / 28-11-2012
Typical results - see week 46 report
§ Note: only automatic processing used
6
Breton, Broderick
WENSS, NVSS
George Heald / LSM / 28-11-2012
Typical results - see week 46 report
§ Mosaicing fieldsin MSSS-HBA
§ contours15%,75%sensitivity
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George Heald / LSM / 28-11-2012
Typical results - see week 46 report
§ Mosaicing fieldsin MSSS-HBA
§ contours15%,75%sensitivity
7
George Heald / LSM / 28-11-2012
Typical results - see week 46 report
§ MSSS Verification Field: HBA (left), LBA (right)
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George Heald / LSM / 28-11-2012
Typical results - see week 46 report
§ Before 2-source per field “peeling”
9
Stewart
George Heald / LSM / 28-11-2012
Typical results - see week 46 report
§ After 2-source per field “peeling”
10
Stewart
George Heald / LSM / 28-11-2012
Source finding and inspection
§ Comparing MSSS fluxes with NVSS,WENSS,VLSS:
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