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Page 1: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

SIRTFNASA’s Space InfraRed Telescope

Facility

Alyssa A. GoodmanProfessor of Astronomy

Harvard University

Page 2: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

It’s not always so cold in space…

“Revenge is a dish best served cold,

and it’s very cold in space.”--Khan

Page 3: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

Observatories for Any “Temperature”

Page 4: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

Wavelength

Page 5: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

NASA’s Great Observatories

Page 6: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

What wavelengths are easy to observe from the ground?

Page 7: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

The Electromagnetic Spectrum

LOW TO HIGH ENERGY

SIRTFSIRTF

Page 8: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

Infrared Life

Page 9: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

The “Thermal” (or “Far”) Infrared

Tem

pera

ture

, de

g F

Page 10: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

“Emission” from aCold-blooded Lizard

Optical Image

Far-Infrared Image

“Room Temperature”

Page 11: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

Emission & Absorption

Emitter

Absorber

“Emission”

“Absorption”

Page 12: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

Emission

Emitter “Emission”

Page 13: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

Absorption

Absorber “Absorption”

Page 14: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

Not all Wavelengths are Absorbed Equally

“Dust Grain”

“DustGrain”

Light is “Extinguished”& Does not Reach Us

Light Goes Right by& Reaches Us

Page 15: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

Near-Infrared

Optical

Page 16: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

SIRTFNASA’s Space InfraRed Telescope

Facility

“Great Observatory” for Near- and Far-Infrared Astronomy

Page 17: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

Real Star Formation

Today’s Tour: Optical and Infrared Views of Orion

(Images prepared for upcoming “L-30 Press Briefing at NASA HQ, March 25,

2003)

Page 18: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

Simulated Star Formati

on

Page 19: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

SIRTF “L-30” Press Conference

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Nebula

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Far-infrared Image

Orion

Page 20: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

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Hubble Space Telescope Image

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Near-infrared Image

Page 21: SIRTF NASA’s Space InfraRed Telescope Facility Alyssa A. Goodman Professor of Astronomy Harvard University

SIRTFNASA’s Space InfraRed Telescope

Facility

Alyssa A. GoodmanProfessor of Astronomy

Harvard University


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