James Webb telescope introduction presentation

THE JAMES WEBB SPACE TELESCOPEA BRIEF INTRODUCTION

JAMES WEBB

Webb was formerly known as

the “Next Generation Space

Telescope” (NGST); it was renamed in

Sept 2002 after a former NASA

administrator, James Webb.

WEBB IS AN INTERNATIONAL COLLABORATION

National Aeronautics and Space Administration


European Space Agency

+




+

Canadian Space Agency

+




+

Canadian Space Agency

+

Managing The Development Effort

Main Industrial Partner

Operates Webb After Launch


THE JAMES WEBB SPACE TELESCOPE


Infrared


Infrared

6.5meter primary mirror


Infrared


Hubble’s primary mirror


Infrared


2018launch date

Hubble’s primary mirror

HOW BIG IS WEBB?

HUBBLE

HOW BIG IS WEBB?

HUBBLE

TRACTOR-TRAILER

HOW BIG IS WEBB?

HUBBLE WEBB

TRACTOR-TRAILER

HOW BIG IS WEBB?

HUBBLE WEBB

BOEING 737 TRACTOR-TRAILER

INNOVATIVE TECHNOLOGIES

Folding, segmented primary mirror



Ultra-lightweight beryllium optics




Detection of extremely weak signals





Microshutters





Microshutters

Cryocooler

FOUR MAIN SCIENCE INSTRUMENTS ON WEBB

Near InfraRed Camera(NIRCam)

1


Near InfraRed Spectrograph(NIRSpec)

1 2




Mid-InfraRed Instrument(MIRI)

1 2 3




Mid-InfraRed Instrument(MIRI)

1 2 3 4

Fine Guidance Sensor/Near InfraRed Imager

& Slitless Spectrograph(FGS-NIRISS)


INTEGRATED SCIENCE INSTRUMENT MODULE (ISM)

INTEGRATED SCIENCE INSTRUMENT MODULE (ISM)

The ISM containsthe four instruments

INFRARED RANGE

Webb's instruments will be designed to work primarily in the infrared range of the electromagnetic spectrum, with some capability in the visible range. It will be sensitive to light from 0.6 (orange)to 28 micrometers (µm) in wavelength.

INFRARED RANGE


Gamma Rays X-Rays UV Rays Visible Light Infrared Microwave Radio waves

10-5 0.2 0.4 0.75 1,000Wavelength in microns (µm)

INFRARED RANGE


Visible Light Near Infrared Mid Infrared Far Infrared Rays

0.75 1,0001.5 40.6Wavelength in microns (µm)


10-5 0.2 0.4 0.75 1,000Wavelength in microns (µm)


INFRARED RANGE



10-5 0.2 0.4 0.75 1,000

0.75 1,0001.5 40.6

0.6 µm 28 µm

Infrared Sensitivity ofWebb’s Instruments

Wavelength in microns (µm)


INFRARED RANGE

0.75 1,0001.5 40.6

FGS/NIRISS(0.8 to 5.0 µm)


0.6 µm 28 µm



INFRARED RANGE

0.75 1,0001.5 40.6



0.6 µm 28 µm


(0.6 to 5 µm)NIRSpec & NIRCam


INFRARED RANGE

0.75 1,0001.5 40.6




0.6 µm 28 µm

MIRI(5 to 28 µm)



INFRARED RANGE

0.75 1,0001.5 40.6




0.6 µm 28 µm

Near IR

Reveals:• cooler red stars

(dust is transparent)

MIRI(5 to 28 µm)



INFRARED RANGE

0.75 1,0001.5 40.6




0.6 µm 28 µm

Near IR

Mid IR

Reveals:• cooler red stars

(dust is transparent)

Reveals:• planets, comets, and asteroids• dust warmed by starlight• protoplanetary disks

MIRI(5 to 28 µm)



1

FOUR MAIN SCIENCE THEMES

THE END OF THE DARK AGES:FIRST LIGHT AND REIONIZATION

1 2



THE ASSEMBLYOF GALAXIES

1 2 3




THE BIRTH OF STARS ANDPROTOPLANETARY SYSTEMS

1 2 3 4




THE BIRTH OF STARS ANDPROTOPLANETARY SYSTEMS

PLANETARY SYSTEMSAND THE ORIGINS OF LIFE

THE LAUNCH

THE LAUNCH

Arianespace's ELA-3 launch complex near Kourou, French Guiana

• Webb must be very cold

• Shielded from the heat of the Sun AND the Earth

• Solution: L2 (Lagrange point)

WEBB’S ORBIT

L2

150 million km 1.5 million km

• Webb must be very cold

• Shielded from the heat of the Sun AND the Earth

• Solution: L2 (Lagrange point)

WEBB’S ORBIT

L4

L2

L5

L1L3

150 million km 1.5 million kmTHE L2 LAGRANGE POINT

Lagrange Points provide a stable configuration in which three bodies can orbit each other yet stay in the same position relative to each other.

HOW FAR BACK IN TIME WILL WEBB SEE?

BIG BANG

0

AGE OF THE UNIVERSE (billions of years)


BIG BANG

0 .0004(~400,000 yrs)

COSMIC MICROWAVE

BACKGROUND



BIG BANG

0 .0004(~400,000 yrs)

COSMIC MICROWAVE

BACKGROUND

.3

FIRSTSTARS


DA

RK

AG

ES


BIG BANG

0 .0004(~400,000 yrs)


COSMIC MICROWAVE

BACKGROUND

.3 1

FIRSTGALAXIES

FIRSTSTARS

DA

RK

AG

ES


BIG BANG

0 .0004(~400,000 yrs)


COSMIC MICROWAVE

BACKGROUND

.3 1

FIRSTGALAXIES

FIRSTSTARS

MODERN UNIVERSE

13.7

DA

RK

AG

ES


BIG BANG

0 .0004(~400,000 yrs)


COSMIC MICROWAVE

BACKGROUND

.3 1

FIRSTGALAXIES

FIRSTSTARS

13.7

HST GOODS /CHANDRA DEPP FIELD

MODERN UNIVERSE

DA

RK

AG

ES


BIG BANG

0 .0004(~400,000 yrs)


COSMIC MICROWAVE

BACKGROUND

.3 1

FIRSTGALAXIES

FIRSTSTARS

13.7

HST GOODS /CHANDRA DEPP FIELD

JWST(13.4 billion years ago)

MODERN UNIVERSE

DA

RK

AG

ES

FOR MORE INFORMATION ABOUT THE JAMES WEBB SPACE TELESCOPEHTTP://WWW.JWST.NASA.GOV/INDEX.HTML

http://www.jwst.nasa.gov/index.html

http://www.jwst.nasa.gov/index.html

[email protected]

@stinsondesignwww.stinsondesign.com

1.888.960.9851

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James Webb telescope introduction presentation

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Transcript of James Webb telescope introduction presentation