The Astronomical Landscape in 2020 Patrick Roche Oxford
The Astronomical Landscape in 2020 Patrick Roche Oxford University An Awesome Arsenal of Astronomical Facilities Enormous scientific power Formidable Data rates giving real challenges in efficient exploitation and community access International and global projects Require huge investment giving high visibility and raised profiles and bringing Opportunities for promotion and influence
Risks if we fail to deliver or to maintain public and political support Timescale for development of major instruments is ~10years Radio Astronomy VLA - ATCA e-Merlin GMRT Large Radio Dishes : GBT, Effelsberg, Bonn, Parkes, Westerbork, Jodrell, Medicina VLBA, EVN/JIVE VLBI LOFAR : sub-mJy sensitivity over the northern sky
Revolutionary Capabilities at low-frequencies EVLA 1 50GHz 27 x 25-m antennas 2-6Jy Jy Jy sensitivity LOFAR 30-250MHz NL/European Array Phased arrays baseline 100m -1500km SKA Pathfinders and Phase I: Phased array feeds ASKAP 36Jy x 12-m dishes in WA MeerKat 6Jy 4 x 13.5-m dishes 1-15GHz Africa Telescope Plans to connect surplus communication dishes
across Africa Microwave Astronomy WMAP and Planck Legacy, CMB intensity and polarization maps, Galactic foregrounds and point sources : ACT, PolarBear, QUIJOTE, SPT, GEM, CBASS . APEX and JCMT : Scuba-2 LaBoca Major New mm Facilities LMT US-Mexico 50-m Dish, mm-wave
astronomy at 46Jy 00-m ALMA 50 x 12-m +16Jy compact array antennas + 1st development projects VLBI? Other wavebands? CCAT : Cerro Chajnantor Atacama Telescope 25-m at 56Jy 00m Infrared Surveys
Herschel SPICA Spitzer Akari - JWST 2MASS - UKIRT VISTA SASIR WISE EUCLID = WFIRST? WISE Y-dwarfs Cushing et al 2011 IR Spectrum of ULAS J1120+06Jy 41 at a redshift z=7.08 (Mortlock et al 2011) Infrared Interferometry Lower sensitivity but higher resolution than the ELTs by factors of 5+ Phase-referencing to allow longer integrations Astrometric and Imaging programmes with ~10 microarcsecond precision and milli-arcsec resolution
Near- and mid-IR images and Spectroscopy Chara, Keck, LBT, Magdalena Ridge, VLTI VLTI/AMBER image of the disk in IRAS 13481-6Jy 124 Chara image of Aur in Eclipse New IR Facilities
SOFIA Ground- based MOS and multi-IFU instruments Wider field and higher order AO JWST Synergies in the near-IR Complementarity in the mid-IR Resolution from the ground for the brightest objects Sensitivity from Space Optical Surveys HST, Galex Legacy Imaging Surveys PanStarrs, Skymapper, VST, DES
LSST 8.4-m Large Synoptic Survey Telescope Multifilter, deep maps of the southern sky every 3 days NSF PDR this week Large Spectroscopic Surveys 2DF SDSS BOSS - LAMOST HETDEX GAIA High Energy Facilities Chandra - XMM-Newton SWIFT LOFT Astro-H - GEMS NuStar Cosmic ray telescopes Auger + Enhancements
Cerenkov Telescope Arrays Hess, Magic, CTA Exoplanet detection and characterization RV Spectrographs : Keck, Lick, AAT, HARPS-S and -N, Carmenes, Spirou. Transit Searches and spectroscopy Corot, Kepler, Echo, Plato. coordination with ground-based facilities Superwasp, TrES Hubble, Spitzer, JWST + ground-based telescopes High contrast AO Planet Imagers
VLT/Sphere, Gemini/GPI, EPICS Astrometric Searches VLTI/Prima, magnetopheric radio emission : LOFAR and SKA microLensing detections + a host of other facilities General purpose ground-based telescopes Workhorses for most programmes Next generation 8 and 10-m telescope instruments aimed at ambitious programmes with large time allocations
Solar system exploration and exoplanet synergies Meteoritics and Interplanetary /interstellar dust particles Laboratory studies molecular and atomic physics and chemistry Beyond the Electromagnetic Spectrum VIRGO GEO6Jy 00 - LIGO LISA-Pathfinder Gravitational wave detectors may open up a new window in the coming years. Astronomical target identification and follow-up? Direct Dark Matter detection Neutrinos and other Particle Physics
Opportunities in the Time Domain Quasi-continuous monitoring of large areas of sky provides new opportunities for discovery with SKA and LSST from 2020 onwards Poorly sampled variability parameter space may yield surprises Rapid follow-up required via automated systems Data digestion or indigestion Serious collaboration with computer science and engineering departments Technology Developments
Resolution, Sensitivity and multiplex gains Mass-production : VLT/MUSE HET/VIRUS Detectors larger format IR detectors multi-pixel heterodyne receivers, phased arrays Adaptive Optics, more actuators, more lasers faster reconstructors/electromechanics, higher reliability/availability Photonic instruments Integrated optics
Background suppression via notch filters Energy-resolving detectors? Public and Political support Public education and student inspiration Citizen science Galaxyzoo and its offspring Growing communities Africa, Asia, South America and elsewhere More representative communities Political engagement
Sustainability Energy costs big facilities in remote areas Must Deliver outstanding, inspirational science, Ensure that we deliver on promises Complete facilities on schedule and budget How do we maintain diversity of facilities and community in the face of hugely ambitious and expensive flagship projects? he four proposals chosen to proceed for assessment are EChO, LOFT, MarcoPolo-R and STE-QUEST.The Exoplanet Characterisation Observatory (EChO) would be the first dedicated mission to investigate exoplanetary atmospheres, addressing the suitability of those planets for life and placing our Solar System in context.
Orbiting around the L2 Lagrange point, 1.5 million km from Earth in the anti-sunward direction, EChO would provide high resolution, multi-wavelength spectroscopic observations. It would measure the atmospheric composition, temperature and albedo of a representative sample of known exoplanets, constrain models of their internal structure and improve our understanding of how planets form and evolve. The Large Observatory For X-ray Timing (LOFT) is intended to answer fundamental questions about the motion of matter orbiting close to the event horizon of a black hole, and the state of matter in neutron stars, by detecting their very rapid X-ray flux and spectral variability. LOFT would carry two instruments: a Large Area Detector with an effective area far larger than current spaceborne X-ray detectors, and a Wide Field Monitor that would monitor a large fraction of the sky. With its high spectral resolution, LOFT would revolutionise studies of collapsed objects in our Galaxy and of the brightest supermassive black holes in active galactic nuclei. MarcoPolo-R is a mission to return a sample of material from a primitive near-Earth asteroid (NEA) for detailed analysis in ground-based laboratories. The scientific data would help to answer key questions about the processes that occurred during planet formation and the evolution of the rocks which were the building blocks of terrestrial planets. The mission would also reveal whether NEAs contain pre-solar material not yet found in meteorite samples,
determine the nature and origin of the organic compounds they contain, and possibly shed light on the origin of molecules necessary for life. The Space-Time Explorer and Quantum Equivalence Principle Space Test (STEQUEST) is devoted to precise measurement of the effects of gravity on time and matter. Its main objective would be to test the Principle of Equivalence, a fundamental assumption of Einstein's Theory of General Relativity. STE-QUEST would measure space-time curvature by comparing the tick rate of an atomic clock on the spacecraft with other clocks on the ground. A second primary goal is a quantum test of the Universality of Free Fall the theory that gravitational acceleration is universal, independent of the type of body. The missions flown as part of ESA's Cosmic Vision 2015-2025 plan will tackle some of the major outstanding scientific questions about the Universe and our place in it:What are the conditions for planet formation and the emergence of life? How does the Solar System work?What are the fundamental physical laws of the Universe?How did the Universe originate and what is it made of?There are currently three missions Euclid, PLATO and Solar Orbiter - which are undergoing
competitive assessment for selection as the first and second medium class missions under Cosmic Vision. The final selection for M1 and M2 will be made later this year, with launches expected in 2017-18. Cosmic Vision Timeline Selection of four M-class candidate missions for assessment study (**) February 2011 Three missions in competitive Definition Phase April 2010 - September 2011 Working group/SSAC evaluation and recommendation for adoption of 2 missionsSeptember 2011 October 2011 SPC decision on 2 missions for ITT releaseNovember 2011 SPC adoption of missions (Cost-at-Completion and Payload Formal Agreement) July 2012 Missions enter Implementation Phase September 2012 Mission launch slots (M1, M2, M3) 2017, 2018, 2022 End of joint Europe-US mission studiesStart of European-led mission studies March 2011
Recommendation on mission selection to SPC February 2012 Mission launch (L1)2020 In February 2009 a down-selection took place between the two L-class candidate missions Laplace (Jupiter) and TandEM (Saturn). Both missions had been proposed as collaborations with NASA, and a joint decision was taken to retain the mission to the Jupiter system as candidate for the L1 launch slot in 2020. In March 2011 ESA announced a new way forward for the L-class candidate missions (IXO, Laplace, LISA) that took account of developments with ESA's international partners. This resulted in the termination of the studies into joint missions and the start of studies into European-led missions. Astro-HAstro-H is a powerful orbiting observatory being developed by the Japan Aerospace Exploration Agen cy (JAXA) for studying extremely energetic processes in the universe. NASA and the JAXA/Institute of Space a nd Astronautical Science have teamed up to develop a high resolution ...20140215February 15, 20142Develo pment Astrophysics
GEMSGEMS will use an X-ray telescope to explore the shape of space that has been distorted by a spinning bl ack hole's gravity, and probe the structure and effects of the formidable magnetic field around magnetars, de ad stars with magnetic fields ...20140701July 20142Development Astrophysics JWSTJames Webb Space Telescope (formerly the Next Generation Space Telescope) is designed for observati ons in the far visible to the mid infrared part of the spectrum. JWST will probe the era when stars and galaxie s started to form; it will ...201406Jy 01June 01, 20142Development Astrophysics LBTIThe Large Binocular Telescope Interferometer (LBTI) is part of NASA's overall effort to find planets and ul timately life beyond our solar system. It will combine the light from the twin telescope mirrors to make high r esolution measurements of stars and ...2Development Astrophysics NuSTARThe Nuclear Spectroscopic Telescope Array is a pathfinder mission that will open the high energy X-ra y sky for sensitive study for the first time. This mission is part of SMD's Astrophysics Explorers program.20120
203February 03, 20122Development Astrophysics SOFIASOFIA is an airborne observatory that will study the universe in the infrared spectrum. This mission is p art of SMD's Cosmic Origins program.2Development Astrophysics ST-7 / Lisa PathfinderSpace Technology 7 project will flight test a Disturbance Reduction System (DRS) that wi ll aid scientists in their quest to detect and measure gravitational waves in space.201206Jy 30June 30, 20122De velopment
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