Astro4Girls Sunnyvale Library Mar 20, 2012. What is Infrared light? Light itself is made up of lots of different “colors”. Raindrops and prisms pull.

Slides:

Advertisements

Similar presentations

Advertisements

Visible Light and Beyond “White light” is made up of a rainbow of colors, each with a different wavelength.

NATS From the Cosmos to Earth The Doppler Effect.

Electromagnetic Spectrum in Space by Sandy Pope CRMS.

Go over 3 homework questions

Infrared Astronomy The image above is an aitoff projection of the sky centered on the center of the Milky Way Galaxy (in the constellation Sagittarius).

Stellar Birth and Stellar Structure Dense “cold” clouds in the Interstellar Medium, or the ISM 75% hydrogen 25% helium and trace amounts of : carbon, oxygen,

The Origin of Modern Astronomy Chapter 4:. Isaac Newton 1689.

Collecting and Mapping Planetary Data. Direct measurements (in situ) Collecting data directly at the site of scientific interest Ground stations on Earth.

Astronomy 1 – Winter 2011 Lecture 7; January

4 Light and Temperature Astronomy: The Science of Seeing.

Telescopes (Chapter 6). Based on Chapter 6 This material will be useful for understanding Chapters 7 and 10 on “Our planetary system” and “Jovian planet.

Imaging Science FundamentalsChester F. Carlson Center for Imaging Science The LASP* at RIT’s Center for Imaging Science *Laboratory for Astronomy in Strange.

Star Formation A Star is Born.

In 1800 William Herschel discovered “invisible light” It’s energy with all the same characteristics as visible light, but is not sensed by the human eye.

Reading Unit 28, Unit 29, Unit 30 Will not be covered by the first exam.

Telescopes and Spacecraft Astronomy 311 Professor Lee Carkner Lecture 7.

5 Light and Temperature Astronomy: The Science of Seeing.

Astronomy at 41,000+ Feet: The Story of the SOFIA Mission ( Stratospheric Observatory for Infrared Astronomy) Dana Backman SOFIA Education & Public Outreach,

SOFIA — The Observatory open cavity (door not shown) TELESCOPE pressure bulkhead scientific instrument (1 of 7) Scientist work stations, telescope and.

Studying the Universe. Telescopes  Telescopes aid astronomers in 2 ways Gather more light than the naked eyeGather more light than the naked eye Magnify.

Light Electromagnetic radiation Electromagnetic spectrum Spectra.

1 D. Lester Eventful Universe Symposium March 19, 2010 The Stratospheric Observatory for Infrared Astronomy (SOFIA) and the Transient Universe Dan Lester.

Prologue Designer: Eric Kimsey The following powerpoint presentation was designed to fulfill the requirements of the TAPS program at Jefferson Labs in.

Infrared Telescopes 1.

Chapter 2 Decoding the Hidden Messages in Starlight

Chapter 3 Light and Matter

ELECTRO MAGNETIC SPECTRUM The electromagnetic spectrum extends from wavelengths of many meters to wavelengths of submicroscopic size. Visible light has.

1 R. D. Gehrz 66th International Symposium on Molecular Spectroscopy, Columbus, OH, June 23, 2011 The Stratospheric Observatory for Infrared Astronomy.

Stars and Galaxies 28.1 A Closer Look at Light Chapter 28.

Telescopes What is the purpose of a telescope? What is the purpose of a telescope? To gather electromagnetic radiation in the form of visible light. It.

Astronomy and the Electromagnetic Spectrum

Multiwavelength Astronomy What do different wavelength regimes allow astronomers to “see”?

© 2004 Pearson Education Inc., publishing as Addison-Wesley Telescopes.

How do colors in a spectrum help us understand stars? Image from

NATURE OF LIGHT.  The electromagnetic spectrum comprise of the following:  1. Radio waves  Electromagnetic radiation with wavelengths that range from.

Units to cover 25, Types of Spectra Kirchoff ’ s Laws: –If the source emits light that is continuous, and all colors are present, we say that this.

What Does the Infrared Have to Do With Space?

Star Formation (Compare: Solar System Formation).

Spectral Analysis Gleaming Information From The Stars.

Telescopes What is the purpose of a telescope? What is the purpose of a telescope? To gather electromagnetic radiation in the form of visible light. It.

Why is the Sky Blue? Why is the Sky Red?.

2.4 Studying the Sun. Electromagnetic Radiation  The visible light we see is only a fraction of energy coming from various objects  Most of what we.

Chapter 24 Sec. 1 Light Sec. 2: Tools of Astronomy

We see light as color and brightness It’s actually electromagnetic radiation: Partly electric, partly magnetic Flows in straight line (radiates)

18-3 pgs  IN: What is a telescope? How is it used?

Electromagnetic Radiation Spectrum

Tools of Astronomy. Study of Light Newton (1666): studied light traveling through a prism & saw a spectrum of colors: ROYGBIV Huygens (1670s): determined.

Investigating Astronomy Timothy F. Slater, Roger A. Freeman Chapter 2 Decoding the Hidden Messages in Starlight.

Ch.22 Atmosphere. Composition 78% nitrogen 21% oxygen 0.9% argon 0.1&other gasses.

NIR, MIR, & FIR.  Near-infrared observations have been made from ground based observatories since the 1960's  Mid and far-infrared observations can.

STARS. WHAT ARE STARS? CLICK ON THE PICTURE TO FIND OUT MORE.

Before, you learned Objects in the universe are grouped together in different ways The motions of planets and other nearby objects are visible from Earth.

Light. Early Ideas About Light Early Greeks thought light came from eye Newton said it was made of particles Huygens said it was a wave Wave-particle.

The Study of Light.

Studying the Sun Notes H- Study of Light Chapter 24

SOFIA — The Observatory

Spectroscopy Lecture.

Electromagnetic Spectrum

Telescopes and the Electromagnetic Spectrum Section 3

Prologue Designer: Eric Kimsey

ELECTROMAGNETIC SPECTRUM

The Study of Light Picture taken

Light and Telescopes.

Electromagnetic Radiation

Radio Astronomy.

Spectroscopy A Tool of Astronomers Title slide

How Do Astronomers Gather Information About Space?

Presentation transcript:

Astro4Girls Sunnyvale Library Mar 20, 2012

What is Infrared light? Light itself is made up of lots of different “colors”. Raindrops and prisms pull those colors “apart”. But … there is more light that we can’t see, both here ……………….. and here

EVERYTHING THAT OUR EYES SEE IS WITHIN THIS SMALL WAVELENGTH RANGE!

ELECTROMAGNETIC RADIATION SPECTRUM DIFFERENT WAVELENGTHS CAUSE DIFFERENT “COLORS” OR TYPES OF “LIGHT”!

Why Infrared Astronomy? Infrared observations probe temperature differences within otherwise fairly cool things

WHY INFRARED ASTRONOMY? Page 7

Texas Christian University March 5, 2010 VisibleNear InfraredMid-Infrared At visible ’s, the star forming region appears as a dark nebula, heavily obscured by interstellar dust. At near-infrared ’s, the dust is nearly transparent, revealing the dust-enshrouded stars in their formation phase Mid and far-IR observations trace dust emission D ifferent wavelengths give unique information:

Spectroscopy: another kind of picture-taking Spectroscopy is like taking a picture of the light from something, spreading into a rainbow and recording that rainbow. Infrared spectroscopy is just imaging the infrared rainbow of an object

Page 11 Infrared spectrum is filled with lines created by molecules  measurement of the strengths of these lines provides information regarding the temperature and composition.

Page 12 The stratosphere’s “temperature inversion” minimizes air turbulence, giving SOFIA: (1) a smooth ride, … and … (2) a nearly water-free environment SOFIA The Earth’s atmosphere is full of water

Page 13 Water in the atmosphere is BAD for infrared observations SOFIA FLIES HIGH, WHERE THE INFRARED LIGHT IS!

Occultation Astronomy with SOFIA Earth Motion of Occulting Object Shadow of Occulting Object MOBILITY! Pluto occultation light curve observed on SOFIA on June 23, 2011 Brightness Time

Page 16 Example of a Flight Path

Page 17 AN INSIDE LOOK …

Primary Mirror Pressure Bulkhead Light Tube Spherical Hydraulic Bearing Secondary Mirror Infrared Light Mirror Visible Light Mirror HOW SOFIA WORKS PRIMARY MIRROR PRESSURE BULKHEAD SCIENCE INSTRUMENT (But first, let’s get oriented!)

Primary Mirror Visible Light Camera Pressure Bulkhead Light Tube Spherical Hydraulic Bearing Secondary Mirror Infrared Light Mirror Visible Light Mirror Infrared Instrument HOW SOFIA WORKS Incoming Infrared Light

Page 20