Imaging and Calibration Algorithms for EVLA, e-MERLIN and ALMA

1 - 3 December 2008, Oxford e-Research Centre

Followup

Follow these links for ongoing activities

RadioNet ALBiUS (Advanced Long Baseline interoperable User Software)

NRAO has set up an Algorithm Research and Development Group ARDG

Outline

Over the next few years, there will be enormous improvements in the sensitivity, resolution and frequency coverage of aperture-synthesis arrays working at cm, mm and sub-mm wavelengths. In order to make best use of the new and upgraded arrays - ALMA, EVLA, e-MERLIN and e-VLBI - advanced imaging and calibration algorithms are required. This workshop will bring together those working on algorithm requirements, design and implementation.

Although the workshop will be focused on the immediate needs of current cm and mm-wave arrays, we encourage input from those working on low-frequency projects and SKA development.

11 November: Registration is now closed. If you would like to go on a waiting list to be informed if any places become available please send an email containing a brief summary of your relevant interests to: algorithms2008@astro.ox.ac.uk

We are organising video links to NRAO sites at Socorro and Charlottesville, to Haystack, to ESO and to JBCA; if you are interested in video links from here please contact the attendees from the venues below; for other possible venues please contact the organisers.

Please also use the above address to contact the Organising Committees if you have a query about any aspect of the workshop.

FinalAnnouncement

Location

The workshop will be held in the e-Science Building of the Oxford e-Research Centre.

Agenda

** A bash script which invokes wget to automatically download the PDFs can be obtained by clicking here. **

Please notify the organisers of any queries or errors, thank-you.

All times are local = UT.

Socorro UT-7
Charlottesville, Haystack UT-5
DRAO UT-8
ESO, SRON UT+1

Monday Dec 1			Via video?	Upload talk
1000	Registration and coffee
	Introduction	Chair Heywood
1100	Welcome	Steve Rawlings
1105	Housekeeping	Ian Heywood
1110	Aims of workshop	Robert Laing		Intro.pdf
	Requirements of current/imminent arrays	Chair Heywood
1125	e-MERLIN and e-VLBI requirements	Simon Garrington		garrington-Oxford-Dec2008.pdf
1140	ALMA requirements	Robert Laing		Laing_ALMA_Requirements.pdf
1155	EVLA requirements	Frazer Owen	V	OwenEVLAreq.ppt OwenEVLAreq.pdf
1210	VLBA upgrade requirements	Craig Walker	V	Walker_OxfordAlgorithms2008dec.pdf
1230	Introductions
1240	Lunch
	Complex gain calibration	Chair Wilson
1340	Field-based calibration	Bill Cotton		CottonIonCal.pdf
1400	The Minimum Ionospheric Model	Jan Noordam		Oxford_Noordam.pdf
1420	Deep Calibration with Meq-Trees	Oleg Smirnov		Smirnov-MeqTreesCalibration.pdf
1440	Expectation Maximization type algorithms for calibration	Sarod Yatawatta		Yatawatta_sage.pdf
1455	Discussion I: Low-frequency calibration	Lead Cotton
1530	Tea
1545	Start of Lunar Occultation of Venus	and conjunction with Jupiter, as seen from Oxford (if fine) (it wasn't)
1600	Phase calibration for ALMA	Bojan Nikolic		NikolicAlgorithmsOxford09.pdf
	Polarization	Chair Wilson
1620	Polarization calibration and imaging	Steve Myers	V	MyersOxford20081201.pdf link
1640	Facets of instrumental polarization	Helmut Wiesemeyer		hwiesemeyer.pdf
1700	Discussion II: Calibration and polarization	Lead Garrington
1715	End of Lunar Occultation of Venus	as (not) seen from Oxford
1800+	Close of day 1 formal sessions
Tuesday Dec 2
	Spectral line issues and Fourier phases	Chair Fenech
0900	Spectral-line calibration and imaging issues	Anita Richards		RichardsSpecLineIssuesDec08Oxf.pdf
0930	Multi-line spectroscopy	Francois Viallefond		ViallefondMultilineSpectro.pdf
0945	Fourier phase analysis in radio-interferometry	Francois Levrier		LevrierOxford02122008.pdf
1000	Discussion III: Spectral line calibration and imaging
1030	Coffee
	Imaging: Deconvolution	Chair Fenech
1100	Applying MCMC and nested sampling techniques to Fourier imaging	Steve Gull		Steve Gull's Algorithms 2008 webpage
1120	Scale-sensitive deconvolution: Asp-Clean and other algorithms	Sanjay Bhatnagar		BhatnagarSSImaging.pdf
1135	Discussion IV: Deconvolution	Lead Muxlow
1230	Lunch
	Wide-band and wide-field imaging	Chair Richards
1330	What you can already do in Classic AIPS	Eric Greisen		Greisen.pdf
1350	Applications of multi-beam CLEAN	Ian Stewart		StewartOxford_nov_08.pdf
1410	Tests of MFS algorithms	Danielle Fenech		Fenech_Oxford08.pdf
1425	An approach to wide-band imaging	Bill Cotton		CottonWideband.pdf
1440	Multifrequency synthesis imaging with multi-scale deconvolution	Urvashi Rau	V	UrvashiRau_Oxford2008_MFS.pdf
1500	Controlling the field-of-view using weighting functions	Shep Doelman	V	haystack_FOV.pdf haystack_FOV.ppt
	Imaging across primary beams and mosaicing	Chair Richards
1515	Imaging and calibration in the presence of direction-dependent effects	Sanjay Bhatnagar		BhatnagarDDImaging.pdf
1535	Tea
1605	Squint, pointing, peeling and all that jazz	Juan Uson		oxford-december08-JUson_s.pdf oxford-december08-JUson.ppt ic2233ngc2537movie.gif.bz2 ReadMeforUson
1625	Efficient wide-field VLBI mapping	Olaf Wucknitz		Wucknitz pdf link
1640	Mosaic imaging with the GMRT	Hans-Rainer Kloeckner		HRK_OX1208.pdf
1655	Wide-field imaging at mm wavelengths	Jerome Pety		pety-oxford.pdf
1710	Discussion V: Wide-band and wide-field imaging	Lead Owen	V
1800+	Close of day 2 formal sessions
Wednesday Dec 3
0900	Breakout sessions
Incl.	Juan Uson	Demo
	Olaf Wucknitz	Multi-channel clean		wucknitz_mc-clean.pdf
	Stephen Bourke	Naked AIPS
	Interoperability and pipelines	Chair Laing
1010	Parseltongue	Mark Kettenis		Kettenis_pt.pdf
1030	Coffee
1100	Pipelines & interoperability from the user's perspective	Anita Richards		AMSR_PipelinesProceduresOxf08.pdf AMSR_PipelinesProceduresOxf08.ppt
1115	ALMA pipeline heuristics	John Lightfoot		LightfootalmaHeuristics.pdf LightfootalmaHeuristics.ppt
1130	ALBiUS	Huib van Langevelde		vanLangeveldeoxf_albius.pdf
1150	Discussion IV: What do we do next?	Lead Laing		Summary.pdf
1330	Close of workshop and Lunch

Registered Participants

Please check that your details are correct and notify algorithms2008@astro.ox.ac.uk of any omissions. In particular, please confirm your days of attendance. Thank-you.

NAME	INSTITUTE	Interests	Mon 1/12	Tue 2/12	Wed 3/12
Andy Biggs	ESO		Video	V	V
Anita Richards	Manchester	High frequency/long baseline calibration; pipelines; UIs for the average astronomer	Y	Y	Y
Bill Cotton	NRAO	Calibration, imaging: wide-band, polarization, full field (with spatially varying instrumental/astospheric effects)	Y	Y	Y
Bojan Nikolic	MRAO	Phase correction, phase calibration imaging algorithms, technical implementation for ALMA	Y	Y	Y
Colin Lonsdale	Haystack		Video	V	V
Cormac Purcell	JBCA		Y	Y	Y
Dan Calvelo	Southampton	Variable sources: extracting the signal and mitigating effects on imaging
Danielle Fenech	UCL	Algorithms/data reduction processes for e-MERLIN	Y	Y	Y
Dirk Petry	ESO	Imaging algorithms	Y	Y	Y
Eelco van Kampen	ESO	Sub-mm simulations, ALMA imaging and map-making	Video	V	V
Eric Greisen	NRAO		Y	Y	Y
Floris van der Tak	SRON		Video	V	--
Francois Levrier	ENS Paris	Characterizing complex structures observed by e.g. ALMA using the statistics of Fourier phases	Y	Y	Y
Francois Viallefond	Paris	Multi-line spectroscopy, SD+interferometry, mosaicing, multi-resolution; ALMA SDM	Y	Y	Y
Frazer Owen	NRAO		Video	V	V
Gareth Hunt	NRAO		Video	V	V
Hans-Rainer Kloeckner	Oxford		Y	Y	Y
Helmut Wiesemeyer	IRAM	Polarization imaging over wide fields espec. ALMA	Y	Y	--
Huib van Langevelde	JIVE/Leiden	ALBiUS	--	Y	Y
Ian Heywood	Oxford		Y	Y	Y
Ian Stewart	JBCA		Y	Y	Y
Jan Noordam	ASTRON	Meq-trees, 3rd-4th generation packages	Y	Y	Y
Jeroen Stil	U. Calgary	Wide-field polarization calibration and imaging	Y	Y	Y
Jerome Pety	IRAM	Imaging and deconvolution	pm	Y	am
Joern Geisbuesch	MRAO		Y	Y	Y
John Lightfoot	ROE	ALMA pipeline flagging, calibration, imaging	Y	Y	Y
Jonas Larsen	ESO	ALMA data reduction (deconvolution, parallel algorithms, user interfaces ...)	Y	Y	Y
Juan Uson	NRAO	High-dynamic range: directionally-dependent effects, non-isoplanaticism, mosaicing, systematic errors, pipeline processing. Interoperability between platforms.	Y	Y	Y
Kristian Zarb Adami	Oxford		Y	Y	Y
Ludwig Schwardt	SKA S.A.		Video	V	V
Lynn Matthews	Haystack	Weighting functions to control the field-of-view of future large-N arrays	Video	V	V
Mark Kettenis	JIVE	ParselTongue and the algorithms themselves	Y	Y	Y
Olaf Wucknitz	Bonn	Wide-band deconvolution; wide field VLBI; LensClean	Y	Y	am
Oleg Smirnov	ASTRON	Meq-trees calibration	Y	Y	Y
Panos Lampropoulos	Kapteyn	Imaging and calibration; statistical signature of residuals (LOFAR)
Paul Harrison	JBCA		--	Video	V
Richard Armstrong	Oxford	Instrumentation calibration for all-digital phased aperture arrays
Rob Beswick	JBCA
Robert Laing	ESO	High-fidelity, cm-wave imaging of bright, extended sources in total intensity and linear polarization. Analysis of polarization images. All aspects of ALMA calibration and imaging.	Y	Y	Y
Sandra Etoka	JBCA		Video	V	V
Sanjay Bhatnagar	NRAO	High dynamic range and high fidelity imaging, low radio frequency data analysis (RFI management, calibration, imaging), calibration and removal of direction dependent effects, scientific software design and development, high performance computing	Y	Y	Y
Sarod Yatawatta	Kapteyn Institute / ASTRON	Expectation Maximization type algorithms for calibration	Y	Y	Y
Shep Doeleman	Haystack	Reducing image contamination from faint source sidelobes	Video	V	V
Simon Garrington	JBCA		Y	Y	-
Stefanie Muehle	JIVE	Data reduction processes for (e-)VLBI, eMERLIN, EVLA, ALMA	Y	Y	Y
Stephen Bourke	JIVE	Wide field VLBI imaging and automated data processing	Y	Y	Y
Steve Gull	MRAO	Applying MCMC and nested sampling techniques to Fourier imaging. Faraday rotation analysis.	--	Y	--
Steve Myers	NRAO		N	V	N
Thomas Wilson	ESO		Y	Y	Y
Tobia Carozzi	Glasgow	Wide-field polarimetry and instrumental polarization	Y	Y	Y
Tom Muxlow	JBO		--	Y	Y
Tony Willis	NRC/DRAO	Imaging and calibration problems associated with focal plane array systems	Video	V	V
Urvashi Rau	NRAO		Video	V	V
Vincent Fish	Haystack		Video	V	V
Wilfred Frieswijk	Kapteyn Astronomical Institute	ALMA: calibration, high frequencies, wide field- and high dynamic range imaging	--	Y	Y
Wouter Vlemmings	Bonn	Polarization for ALMA; cm-wave issues e.g. ionosphere; e-MERLIN PSRs	am? pm	Y	Y

RadioNet support

• The deadline for applying for support is past (it was 9 November). If you have asked for support you should have received an email from the organisers confirming the amount. If you have any query please contact algorithms2008@astro.ox.ac.uk . Only claims approved in advance will be met. If you are eligible to claim please bring all receipts and your bank account details (including international codes - SWIFT, IBAN, BIC etc.) with you, since we have to process all claims immediately after the meeting. The claim form has been sent to eligible people, or you can download it from ALMA Forum (NA6).

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