The Transient Universe: AY 250 Spring 2007 New Radio Telescopes Geoff Bower.

Slides:

Advertisements

Similar presentations

CNR ISTITUTO DI RADIOASTRONOMIA INAF Sardinia Radio Telescope G. Grueff IRA – Istituto di Radioastronomia INAF – Istituto Nazionale di Astrofisica.

Advertisements

SKADSMTAvA A. van Ardenne SKADS Coördinator ASTRON, P.O. Box 2, 7990 AA Dwingeloo The Netherlands SKADS; The.

Wide Field VLBI Imaging I (Background) Indra Bains.

21 cm Cosmology Jeff Peterson, CMU -Existing telescopes and data -Intensity Mapping -Fixed Cylinders.

Schediwy: Advantages and Disadvantages of Sparse Aperture Arrays Fermilab: October 2009.

SKA South Africa Overview Thomas Kusel MeerKAT System Engineering Manager April 2011.

Science with SKA:. The SKA will provide continuous frequency coverage from 50 MHz to 14 GHz in the first two phases of its construction. A third phase.

Probing the field of Radio Astronomy with the SKA and the Hartebeesthoek Radio Observatory: An Engineer’s perspective Sunelle Otto Hartebeesthoek Radio.

SKAMP - the Molonglo SKA Demonstrator M.J. Kesteven CSIRO ATNF, T. J. Adams, D. Campbell-Wilson, A.J. Green E.M. Sadler University of Sydney, J.D. Bunton,

The Dark Age… before the stars, beyond the galaxies…

Radio Telescopes Large metal dish acts as a mirror for radio waves. Radio receiver at prime focus. Surface accuracy not so important, so easy to make.

The Green Bank Telescope a powerful instrument for enhancing ALMA science Unblocked Aperture Low sidelobes gives high dynamic range Resistance to Interference.

Galaxies Types Dark Matter Active Galaxies Galaxy Clusters & Gravitational Lensing.

Transient Science with the Allen Telescope Array Geoff Bower Berkeley.

The Green Bank Telescope Ronald Maddalena National Radio Astronomy Observatory.

The Future of the Past Harvard University Astronomy 218 Concluding Lecture, May 4, 2000.

The Transient Universe: AY 250 Spring 2007 The Transient Universe AY 250 Geoff Bower.

Project status and specifications Douglas Bock Project Manager 1.

ATA Antennas Feeds and Systems NSF Review 8/05/08 Jack Welch.

Panorama of the Universe: Daily all-sky surveys with the SKA John D. Bunton, CSIRO TIP, Ronald D. Ekers, CSIRO ATNF and Elaine M. Sadler, University of.

Definitive Science with Band 3 adapted from the ALMA Design Reference Science Plan (

Lee Clement PHYS February, VLA – General Information  Radio observatory  Located in New Mexico  Operated by the National Radio Astronomy.

Star Formation Research Now & With ALMA Debra Shepherd National Radio Astronomy Observatory ALMA Specifications: Today’s (sub)millimeter interferometers.

The Canadian Galactic Plane Survey Mapping the Ecology Of the Milky Way Galaxy.

Steve Torchinsky SKADS Science Overview Lisbon 2007 Jan 12 SKADS Science Overview.

The Square Kilometre Array Department of Astronomy and Atmospheric Sciences, Kyungpook National University 김경묵, 박진태, 방태양, 신지혜, 조창현, 정수진, 현화수 Survey Science.

Andrew Faulkner University of Manchester Jodrell Bank Observatory.

November 2009, Lunch talk The most compact E configuration for the EVLA. L. Kogan, G. Stanzione, J. Ott, F. Owen National Radio Astronomy Observatory Socorro,

1 100 SKA stations (2020 ) Projets avec SKA. 2 Telescope Project (~2020) for a giant radiotelescope in the centimetre-metre range one square kilometre.

SKA Introduction Jan Geralt Bij de Vaate Andrew Faulkner, Andre Gunst, Peter Hall.

Oct 16, 2008, SFIG, Zhiyu Zhang, Seminar 2008 Introduction of Radio Interferometry and the EVLA Zhiyu Zhang.

Simulations of Beamforming Algorithms Stelio Montebugnoli, IRA-INAF, Medicina (BO), Italy, Giovanni Naldi, IRA-INAF, Medicina.

Radio Interferometry and ALMA T. L. Wilson ESO. A few basics: Wavelength and frequency  -1 temperature max (mm) ~ 3/T(K) (for blackbody) Hot gas radiates.

The Expanded Very Large Array: Phase I Science and Technical Requirements Rick Perley NRAO - Socorro.

The KAT/SKA project and Related Research Catherine Cress (UKZN/KAT/UWC)

The Square Kilometre Array: an update Steve Rawlings UoOxford and PrepSKA Coordinator Richard Schilizzi SKA Program Development Office Japan, November.

Moscow presentation, Sept, 2007 L. Kogan National Radio Astronomy Observatory, Socorro, NM, USA EVLA, ALMA –the most important NRAO projects.

Peter Wilkinson SKADS Workshop: Paris 10 October nd SKADS Workshop: Introduction “What is it about?” Peter Wilkinson University of Manchester.

Arecibo Frontiers – 12 Sep Beyond the Frontiers: The Road From Arecibo to The Radio Synoptic Survey Telescope (RSST) Steven T. Myers National Radio.

Peter Wilkinson University of Manchester JENAM Liege 6 July 2005 The SKA Design Study “SKADS”

S.A. Torchinsky SKADS Workshop 10 October 2007 Simulations: The Loop from Science to Engineering and back S.A. Torchinsky SKADS Project Scientist.

Seeing Stars with Radio Eyes Christopher G. De Pree RARE CATS Green Bank, WV June 2002.

Exploring The Universe With The Most Powerful Telescope on Earth Jim Ulvestad National Radio Astronomy Observatory July 24, 2002.

LOFAR LOw Frequency Array => most distant, high redshift Universe !? Consortium of international partners… Dutch ASTRON USA Haystack Observatory (MIT)

Murchison Widefield Array (MWA) : Design and Status Divya Oberoi, Lenoid Benkevitch MIT Haystack Observatory doberoi, On behalf.

Answers from the Working Group on AGN and jets G. Moellenbrock, J. Romney, H. Schmitt, V. Altunin, J. Anderson, K. Kellermann, D. Jones, J. Machalski,

E-MERLIN : a pathfinder for the SKA (a summary of the e-MERLIN talk given at the Berkeley SKA meeting) e-MERLIN : a pathfinder for the SKA (a summary of.

The Mission  Explore the Dark Ages through the neutral hydrogen distribution  Constrain the populations of the first stars and first black holes.  Measure.

Structure Formation in the Universe Concentrate on: the origin of structure in the Universe How do we make progress?How do we make progress? What are the.

A llen A rray T elescope Low Hanging Fruit in The New Radio Sky or Radio Surveys and Transients with the Allen Telescope Array or The Same Road Twice Geoffrey.

ALMA and the Call for Early Science The Atacama Large (Sub)Millimeter Array (ALMA) is now under construction on the Chajnantor plain of the Chilean Andes.

Rick Perley 2 Nov 2001 EVLA Correlator Conceptual Design Review 1 Science Drivers for the EVLA Correlator Rick Perley EVLA Project Scientist 2 Nov 2001.

The Allen Telescope Array Douglas Bock Radio Astronomy Laboratory University of California, Berkeley Socorro, August 23, 2001.

E-MERLIN & EVLA P.J.DiamondP.J.Diamond MERLIN/VLBI National Facility Jodrell Bank Observatory University of Manchester MERLIN/VLBI National Facility Jodrell.

Paul AlexanderSKA Computational Challenges Square Kilometre Array Computational Challenges Paul Alexander.

The SKA: Next Week, the Next 3 Years & Beyond Jim Cordes, Cornell University 24 August 01  Concepts  Science Goals & Payoffs  Configurations, Modes.

The Square Kilometre Array Dr. Minh Huynh (International Centre for Radio Astronomy Research and SKA Program Development Office) Deputy International SKA.

The Very Large Array Sky Survey

Future Radio Interferometers Jim Ulvestad National Radio Astronomy Observatory.

C.Carilli, AUI Board October 2006 ISAC-run three year process: Quantified ‘experiments’ for future large area cm telescopes 50 chapters, 90 authors, 25%

New Worlds, New Horzions, New Science – 09 Mar S. T. Myers Cosmological Galaxy Surveys: The Molecular Perspective Steven T. Myers (NRAO) *National.

FIRST LIGHT A selection of future facilities relevant to the formation and evolution of galaxies Wavelength Sensitivity Spatial resolution.

Update On The Square Kilometer Array World Space Congress October 15, 2002 Jill Tarter.

Introduction Coalescing binary compact objects for a 1.4 M  neutron star inspiralling into a 10 M  black hole would be in-band for ~200 s. We could detect.

10 January 2006AAS EVLA Town Hall Meeting1 The EVLA: A North American Partnership The EVLA Project on the Web

Square Kilometre Array eInfrastructure: Requirements, Planning, Future Directions Duncan Hall SPDO Software and Computing EGEE 2009.

1 ASTRON is part of the Netherlands Organisation for Scientific Research (NWO) Netherlands Institute for Radio Astronomy Astronomy at ASTRON George Heald.

VLA/VLBA INTEGRATION With appropriate outfitting, the VLA+NMA+VLBA could be one integrated instrument covering all resolutions from arcminutes to well.

Future Radio Interferometers

Rick Perley NRAO - Socorro

Presentation transcript:

The Transient Universe: AY 250 Spring 2007 New Radio Telescopes Geoff Bower

The Transient Universe: AY 250 Spring 2007 State of the Art 27 antennas –25 m in diameter –D_eff ~ 130m 400 cm to 0.7 cm wavelength km baselines Resolution: 9 arcmin to 40 milliarcsec Very Large Array

The Transient Universe: AY 250 Spring 2007 State of the Art 10 antennas 25 m in diameter 90 cm cm Baselines 100 km km Resolution: 20 to 0.2 milliarcsec Very Long Baseline Array

The Transient Universe: AY 250 Spring 2007 Evolutionary Deadends

The Transient Universe: AY 250 Spring 2007 NaD(NaD^2) ^2 (NaD)^2 VLA27252e85e5 ATA35062e84e6 GBT11001e81e4 Arecibo12002e94e4

The Transient Universe: AY 250 Spring 2007

Key Characteristics of Next Generation Telescopes Greater sensitivity More complete image sampling Broader wavelength coverage Rapid survey speed Multi-user capability Large N, Small Diameter LNSD

The Transient Universe: AY 250 Spring 2007 Cost Optimization 6.1 m Cost ~ D^2.7

The Transient Universe: AY 250 Spring 2007 The Radio Revolution

The Transient Universe: AY 250 Spring 2007 Allen Telescope Array

The Transient Universe: AY 250 Spring 2007

Allen Telescope Array Large N design –350 x 6.1m antennas –Sensitivity of the VLA –Unprecedented imaging capabilities Continuous frequency coverage –0.5 to 11.2 GHz Wide field of view –3.5 degrees at 1 GHz –Excellent survey instrument: 17x FOV of VLA Compact Configuration –1 arcmin at 1.4 GHz (350), 1 arcmin at 5 GHz (42) Simultaneous observing with multiple backends –Correlator: 2 x 100 MHz x full Stokes x 1024 channels –Phased array beams: 32 indepent at 4 frequencies Joint project of UC Berkeley/SETI Inst. Privately funded construction –$26M from PGAF and others –NSF support for correlator & operations ($2.2M) –USNO support for construction ($3M)

The Transient Universe: AY 250 Spring 2007 ATA Log-Periodic Feed T receiver ~35 K T LNA ~10 K LNAs from Weinreb & Wadefalk Feed by Welch & Engargiola

The Transient Universe: AY 250 Spring 2007 The Antenna 6.1-m offset Gregorian Low diffractive spillover ~1% at all elevations Surface rms ~ 1mm Works to 25 GHz

The Transient Universe: AY 250 Spring 2007 Antenna Configuration 1 km Sidelobes less than 1%

The Transient Universe: AY 250 Spring 2007

ATA-42 Operational Soon Movie 3x real time 4 deg/sec in azimuth, 2 deg/sec in elevation

The Transient Universe: AY 250 Spring 2007 Andromeda in a Single Pointing 7 antennas 2 nights

The Transient Universe: AY 250 Spring 2007 ATA Science SETI –GC survey: 20 sq. deg, GHz, 6 months –10 6 stars over 1-10 GHz Arecibo radar detectable at 300 pc –Simultaneous with correlator Extragalactic HI survey –Neutral gas SDSS equivalent –L* at z=0.1 over the entire sky Galactic magnetic fields, HI, long- chain molecules Pulsars Radio continuum science –All sky surveys –Transients (1 msec  1 year) Robishaw, Simon & Blitz 2002 LGS 3

The Transient Universe: AY 250 Spring 2007 The EVLA Upgrade of the VLA Bandwidth –100 MHz  8 GHz Correlator –256 channels  256k Continuous frequency coverage –1.0 to 50 GHz

The Transient Universe: AY 250 Spring 2007 EVLA Phase I - Key Science Examples Measuring the three-dimensional structure of the Sun's magnetic field Mapping the changing structure of the dynamic heliosphere Measuring the rotation speed of asteroids Observing ambipolar diffusion and thermal jet motions in young stellar objects Measuring three-dimensional motions of ionized gas and stars in the center of the Galaxy Mapping the magnetic fields in individual galaxy clusters Conducting unbiased searches for redshifted atomic and molecular absorption Looking through the enshrouding dust to image the formation of high- redshift galaxies Disentangling starburst from black hole activity in the early universe Providing direct size and expansion estimates for up to 100 gamma-ray bursts every year

The Transient Universe: AY 250 Spring 2007 EVLA continuum

The Transient Universe: AY 250 Spring 2007 Mileura Wide Field Array --- Low Frequency Demonstrator

The Transient Universe: AY 250 Spring 2007 Dipole Antennas

The Transient Universe: AY 250 Spring 2007

The Square Kilometer Array

The Transient Universe: AY 250 Spring 2007 LNSD Optimization Weinreb 2007

The Transient Universe: AY 250 Spring 2007 Science Goals The Cradle of Life Strong field tests of gravity using pulsars and black holes Origin and evolution of magnetism Galaxy evolution and cosmoly Dark energy

The Transient Universe: AY 250 Spring 2007 “What are the basic properties of the fundamental particles and forces?” Neutrinos, Magnetic Fields, Gravity, Gravitational Waves, Dark Energy “What constitutes the missing mass of the Universe?” Cold Dark Matter (e.g. via lensing), Dark Energy, Hot Dark Matter (neutrinos) “What is the origin of the Universe and the observed structure and how did it evolve?” Atomic hydrogen, epoch of reionization, magnetic fields, star-formation history…… “How do planetary systems form and evolve?” Movies of Planet Formation, Astrobiology, Radio flares from exo-planets…… “Has life existed elsewhere in the Universe, and does it exist elsewhere now?” SETI fundamental questions in physics and astronomy

The Transient Universe: AY 250 Spring 2007 Technical Specs 1 km^2 collecting area –D_eff ~ 1000 m Frequency coverage from 0.1 to 25 GHz Baselines of 20 m to 3000 km FOV >~ 1 sq deg –Goal of 200 sq deg at 0.7 GHz

The Transient Universe: AY 250 Spring 2007

Inner core Station Reference Design Wide-angle radio camera + radio “fish-eye lens” Reference Design

The Transient Universe: AY 250 Spring % SKA Pathfinders - proving SKA technology Radio camera: small dishes+smart feeds -SKA Design Study (Europe) -Karoo Array Telescope (South Africa) -Extended New Technology Demonstrator (Australia) -Allen Telescope Array (USA) Radio fish-eye lens: aperture array tiles -SKA Design Study (Europe) -LOFAR (Netherlands) SKADS – study of end-to-end design EC-FP6, European countries, Australia, South Africa, Canada

The Transient Universe: AY 250 Spring 2007 EVLA continuum SKA 10^6

The Transient Universe: AY 250 Spring Site ranking ‘1% SKA’ Science ISSC MoAs Site Selection Science Case published Inter- governmental discussions First SKA Working Group Initial concept 2000 ‘10% SKA’ Science Feasibility study Full array Build 100% SKA SKA Complete Phase 1 Build 10% SKA Concept exposition Define SKA System SKA timeline Optimise Reference Design Construct 1% SKA “pathfinders”