Post on 21-Jan-2018
Sunrise Session: October 29, 2010
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John D. Elwell
Sunrise Session: October 29, 2010
Mapping the Sky in Infrared Light:
The Wide-field Infrared Survey Explorer (WISE)
National Aeronautics and Space AdministrationJet Propulsion LaboratoryCalifornia Institute of Technology
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What has never been seen before:
Sunrise Session: October 29, 2010
Sunrise Session: January 28, 2011
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Lost & Found: Tycho’s Supernova
Sunrise Session: October 29, 2010
Appeared in 1572 Visible in daylight Then, it faded
Sunrise Session: January 28, 2011
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Creating an Atlas of the SkySunrise Session: January 28, 2011
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WISE Timeline
DIRBE(1990)
WISE(2010)
IRAS(1983)
Hubble
Sunrise Session: January 28, 2011
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WISE Timeline
2000: Scientists began discussing need for a mission to survey the sky infrared light2004: NASA proposed WISE, with SDL as a team member to design and fabricate the science instrument.2006: WISE was selected for mission funding.Dec. 2009: WISE launched.Jan. 2011: mission will terminate.
Sunrise Session: January 28, 2011
Science
WISE
Sunrise Session: October 29, 2010
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WISE Overview
“Amateur-level” camera: 1 megapixel
BUT, excellent performance with super-low temps: 17 kelvin (vs. 300
kelvin on earth).
Sunrise Session: January 28, 2011
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WISE & Asteroids
WISE has identified 100Ks of main
belt asteroids Hundreds of
near-earth objects
Main Belt Asteroids
Near-Earth Objects
Sunrise Session: January 28, 2011
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WISE & Brown Dwarfs
WISE could locate a cold brown dwarf closer than Alpha Centauri.
Sunrise Session: January 28, 2011
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WISE & the Far-Off Universe
Galaxy Clusters Ultra Luminous Infrared Galaxies
Sunrise Session: January 28, 2011
Why
WISE?
Sunrise Session: October 29, 2010
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Why All-Sky Surveys?
WISE47 arcminutes2
(about 1.5 times as wide as the moon)6 months to cover sky
SPITZER5.4 arcminutes2
38 years to cover sky
HUBBLE2.5 arcminutes2
177 years to cover sky
Sunrise Session: January 28, 2011
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Why Infrared?
Many features of the universe can be seen in infrared light but not visible light.
Visible Light Image
Infrared Light Image
Ned Wright, WISE Principal
Investigator Infra-Ned!
Sunrise Session: January 28, 2011
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Why Space?
The earth’s atmosphere is transparent to visible light – we see stars!
But the earth’s atmosphere is opaque to much of the infrared light coming at us from the universe.
Sunrise Session: January 28, 2011
Mission
WISE
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WISE Survey Design
1 Orbit2 Consecutive
Orbits2 Orbits
20 Days Apart
Overlapping Orbits
Sunrise Session: January 28, 2011
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WISE Mission Components
Delta II (ULA)
White Sands Ground Terminal
Engineering Operations
System (JPL)
Science Survey Planning(UCLA)
Science Data Processing
(IPAC)
Cryogenic Telescope
(SDL)
Spacecraft (BATC)
TDRSS
Infrared Science Archive(IPAC)
Sunrise Session: January 28, 2011
Building
WISE
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Inside the WISE Science Payload
Aperture Cover
Hydrogen Tanks
Telescope
Detectors
Sunrise Session: January 28, 2011
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Building WISE
WISE Si:As FPMA SN 015_pretest_1403WISE Si:As FPMA SN 015_pretest_1403
One of Four Cameras Telescope
Installed Camera Assembled Instrument
Sunrise Session: January 28, 2011
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Testing WISE
Vibration Testing Radio Interference Testing
Acoustics Testing
Sunrise Session: January 28, 2011
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Calibrating WISE
Sunrise Session: October 29, 2010
Sunrise Session: January 28, 2011
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WISE Ready to Ship
Sunrise Session: October 29, 2010
Sunrise Session: January 28, 2011
Into Orbit
WISE
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WISE Flight SystemSunrise Session: January 28, 2011
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Mounting WISE on the Delta IISunrise Session: January 28, 2011
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Fairing Install
Sunrise Session: October 29, 2010
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Launch on Dec. 14, 2009
Sunrise Session: October 29, 2010
Sunrise Session: January 28, 2011
First Light!
WISE
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WISE First Light Image
V482In constellation Carina
Sunrise Session: January 28, 2011
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Seeing in Infrared Light
w1 w2 w3 w4
Sunrise Session: January 28, 2011
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WISE First Light Image
V482In constellation Carina
Band 1 only
Sunrise Session: January 28, 2011
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WISE First Light Image
V482In constellation Carina
Band 2 only
Sunrise Session: January 28, 2011
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WISE First Light Image
V482In constellation Carina
Band 3 only
Sunrise Session: January 28, 2011
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WISE First Light Image
V482In constellation Carina
Band 4 only
Sunrise Session: January 28, 2011
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WISE First Light Image
V482In constellation Carina
Sunrise Session: January 28, 2011
Comparisons
WISE
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Visible vs. Infrared
Sunrise Session: October 29, 2010
Digitized Sky Survey
WISE
Tycho’s Supernova1572
S175 Nebula
King 1 Open Cluster
Young Stellar Objects
vs.
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Old Infrared vs. New Infrared
Sunrise Session: October 29, 2010
IRAS (1983)
WISE (2010)
vs.
Sunrise Session: January 28, 2011
In our Solar System
WISE
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Comet Siding Spring
Sunrise Session: October 29, 2010
C/2007 Q3Discovered in 2007 by Australian astronomers.
Sunrise Session: January 28, 2011
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Comet WISE
Sunrise Session: October 29, 2010
P/2010 B21st comet discovered by WISE2 KM across, 175 M miles away.
Sunrise Session: January 28, 2011
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Asteroids
1st WISE asteroid: 2010 AX58.
1st WISE NEO: W006nnn.
Sunrise Session: January 28, 2011
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Asteroid Population
150 K asteroids seen.
33,000 of them are new.
Sunrise Session: January 28, 2011
In our Galaxy
WISE
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Thor’s Helmet
NGC2359Wolf_Rayet star in center of nebula
200 K times more luminous than the sun.
Sunrise Session: January 28, 2011
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Visible light photo
Heart and Soul Nebula
Nebulae in the constellation Casseopeia, 6,000 light years from earth
Sunrise Session: January 28, 2011
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Visible light photo
Heart and Soul Nebula
WISE infrared photo Nebulae in the
constellation Casseopeia, 6,000 light years from earth
Sunrise Session: January 28, 2011
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Star Clusters Near and Far
Sunrise Session: October 29, 2010
Diameter of the Moon
420 light years from earth
29,000 light years from earth
Sunrise Session: January 28, 2011
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Brown Dwarf
Surface temps are colder than a chilly day in Fairbanks, AK.
Sunrise Session: January 28, 2011
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Flame in Orion’s Belt
Sunrise Session: October 29, 2010
3 Nebulae in Orion’s BeltWhen WISE sensitivity decreased, clarity of this view increased.
Sunrise Session: January 28, 2011
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A Dying Star
Sunrise Session: October 29, 2010
Visible light photo NGC 1514Planetary nebula 800 light years from earth.
Sunrise Session: January 28, 2011
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A Dying Star
Sunrise Session: October 29, 2010
WISE infrared photo NGC 1514Planetary nebula 800 light years from earth.
Sunrise Session: January 28, 2011
A View of the Universe
WISE
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Small Magellanic Cloud
NGC 292200 K light years away.
Discovered by Magellan on his 1519 voyage.
Sunrise Session: January 28, 2011
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Nearby Galaxies
Sunrise Session: October 29, 2010
NGC 320
Messier 60
Messier 104Sombrero Galaxy
Messier 51Whirlpool Galaxy
Sunrise Session: January 28, 2011
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Hidden Galaxy
Sunrise Session: October 29, 2010
IC3426-11 M light years away.
Shrouded by the Milky Way in visible light.
Sunrise Session: January 28, 2011
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Sculptor Galaxy
Sunrise Session: October 29, 2010
NGC 25310.5 M light years away.
Infrared show infant stars heating surrounding dust.
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Andromeda Galaxy
Sunrise Session: October 29, 2010
NGC 2242.5 M light years away.
Closest large galaxy to the Milky Way
Band 1 only
Sunrise Session: January 28, 2011
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Andromeda Galaxy
NGC 2242.5 M light years away.
Closest large galaxy to the Milky Way
Bands 3 and 4
Sunrise Session: January 28, 2011
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Andromeda Galaxy
NGC 2242.5 M light years away.
Closest large galaxy to the Milky Way
All Bands
Sunrise Session: January 28, 2011
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50+brown dwarfs500+ candidates
106comets observed16 discovered3 reclassified as comets
WISE Stats
1.9 M framesets (7.2 million images)
153 thousandunique solar objects(35,000 discovered)
452near earth
objects119 asteroids
19 potentially hazardous
Sunrise Session: January 28, 2011
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WISE Summary
10-year mission Total Cost: $300 million
SDL payload: $76 million Exemplary Project
On time On budget
Successful Project Met all expectations Provided infrared atlas
Sunrise Session: January 28, 2011
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Space Dynamics Laboratory
Sunrise Session: October 29, 2010
Founded in 1959 Revenues: >$50M/yr 400 employees
30% students
500+ successful missions
200K ft2 state-of-the-art facilities
Sunrise Session: January 28, 2011
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Acknowledgments
WISE Scientists Edward Wright, UCLA
WISE Principal Investigator Peter Eisenhardt, JPL
WISE Project Scientist Amy Mainzer, JPL
WISE Deputy Project Scientist Roc Cutri, IPAC (CalTech)
Lead Scientist/ManagerWISE Science Data Center
WISE Management at JPL Bill Irace
WISE Program Manager Fengchuan Liu
WISE Deputy Program Manager Valerie Duval
WISE Payload Contract Manager
SDL’s Major Subcontractors Lockheed-Martin Advanced
Technology CenterCryostat
L3-SSG TinsleyOptical components
DRS TechnologiesFocal Plane Arrays
Special Thanks Pedro Sevilla, SDL
Image and statistics help
Sunrise Session: January 28, 2011
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WISE Photos
Sunrise Session: October 29, 2010
Available for downloadwise.ssl.berkeley.edu
Sunrise Session: January 28, 2011
Sunrise Session: October 29, 2010
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