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ASTRON is part of the Netherlands Organisation for Scientific Research (NWO) Netherlands Institute for Radio Astronomy MSSS Update George Heald (on behalf of the MSSS Team) LSM, 28 November 2012 1

MSSS Update - ASTRON

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Page 1: MSSS Update - ASTRON

ASTRON is part of the Netherlands Organisation for Scientific Research (NWO)

Netherlands Institute for Radio Astronomy

MSSS Update

George Heald(on behalf of the MSSS Team)LSM, 28 November 2012

1

Page 2: MSSS Update - ASTRON

George Heald / LSM / 28-11-2012

MSSS Observing Status

2Webpage in progress

Page 3: MSSS Update - ASTRON

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

Page 4: MSSS Update - ASTRON

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

Page 5: MSSS Update - ASTRON

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)

5

Page 6: MSSS Update - ASTRON

George Heald / LSM / 28-11-2012

Typical results - see week 46 report

§ Note: only automatic processing used

6

Breton, Broderick

Page 7: MSSS Update - ASTRON

George Heald / LSM / 28-11-2012

Typical results - see week 46 report

§ Note: only automatic processing used

6

Breton, Broderick

WENSS, NVSS

Page 8: MSSS Update - ASTRON

George Heald / LSM / 28-11-2012

Typical results - see week 46 report

§ Mosaicing fieldsin MSSS-HBA

§ contours15%,75%sensitivity

7

Page 9: MSSS Update - ASTRON

George Heald / LSM / 28-11-2012

Typical results - see week 46 report

§ Mosaicing fieldsin MSSS-HBA

§ contours15%,75%sensitivity

7

Page 10: MSSS Update - ASTRON

George Heald / LSM / 28-11-2012

Typical results - see week 46 report

§ MSSS Verification Field: HBA (left), LBA (right)

8

Page 11: MSSS Update - ASTRON

George Heald / LSM / 28-11-2012

Typical results - see week 46 report

§ Before 2-source per field “peeling”

9

Stewart

Page 12: MSSS Update - ASTRON

George Heald / LSM / 28-11-2012

Typical results - see week 46 report

§ After 2-source per field “peeling”

10

Stewart

Page 13: MSSS Update - ASTRON

George Heald / LSM / 28-11-2012

Source finding and inspection

§ Comparing MSSS fluxes with NVSS,WENSS,VLSS:

11

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