Your Discovery is Here. The Pulsar Search Collaboratory.

Slides:



Advertisements
Similar presentations
Susan CartwrightOur Evolving Universe1 The Deaths of Stars n What happens to stars when the helium runs out? l l do they simply fade into oblivion? l l.
Advertisements

© 2010 Pearson Education, Inc. Chapter 18 The Bizarre Stellar Graveyard.
1 Stellar Remnants White Dwarfs, Neutron Stars & Black Holes These objects normally emit light only due to their very high temperatures. Normally nuclear.
Lecture 26: The Bizarre Stellar Graveyard: White Dwarfs and Neutron Stars.
Life Cycle of a Star Star Life Cycle: Stars are like humans. They are born, live and then die.
Stellar Evolution Describe how a protostar becomes a star.
Warm Up 6/6/08 If star A is farther from Earth than star B, but both stars have the same absolute magnitude, what is true about their apparent magnitude?
Star Life Cycle.
The Stellar Graveyard AST 112. Review: Stellar Evolution (Low Mass)
Introduction to Astrophysics Lecture 11: The life and death of stars Eta Carinae.
Neutron Stars and Black Holes Please press “1” to test your transmitter.
Slide 1 Stellar Evolution M ~4 P R O T O S T A R M a i n S e q u e n c e D G I A N T Planetary Supernova Nebula W h i t e D w a r f B r o w n D w a r f.
The Discovery of the Neutron Star The Neutron Predicted by Ernest Rutherford in 1920 Experimentally discovered by James Chadwick in 1932.
Stellar Evolution: The Life Cycle of a Star. Stellar Nurseries All stars start out in a nebula (large cloud of dust and gas). All stars start out in a.
Neutron Stars and Black Holes
Supernova. Explosions Stars may explode cataclysmically. –Large energy release (10 3 – 10 6 L  ) –Short time period (few days) These explosions used.
ASTR 113 – 003 Spring 2006 Lecture 07 March 8, 2006 Review (Ch4-5): the Foundation Galaxy (Ch 25-27) Cosmology (Ch28-39) Introduction To Modern Astronomy.
Stellar Nucleosynthesis
What Powers the Sun? Nuclear Fusion: An event where the nuclei of two atoms join together. Need high temperatures. Why? To overcome electric repulsion.
Earth Science 25.2B : Stellar Evolution
 Name: Isabel Baransky  School: Fu Foundation of Engineering and Applied Science  Major: Applied Physics  Minor: Music.
The Life Cycle of Stars.
This set of slides This set of slides covers the supernova of white dwarf stars and the late-in-life evolution and death of massive stars, stars > 8 solar.
The Stellar Graveyard.
Announcements Pick up graded homework (projects, tests still in progress) Transit of Mercury (crossing in front of Sun), this afternoon, roughly noon-5:00.
Astronomy 100 Tuesday, Thursday 2:30 - 3:45 pm Tom Burbine
Chapter 26 Part 1 of Section 2: Evolution of Stars
Giant clouds of gas and dust The birthplace of stars! Nebula.
NOT THOSE TYPES OF STARS! LIFE CYCLE OF STARS WHAT IS A STAR? Star = ball of plasma undergoing nuclear fusion. Stars give off large amounts of energy.
Neutron Stars and Black Holes Chapter 14. Formation of Neutron Stars Compact objects more massive than the Chandrasekhar Limit (1.4 M sun ) collapse beyond.
Mrs. Degl1 All about the Stars Click here Click here for the Astronomy picture of the day!!! The distances to stars are very large so astronomers use light.
PSR J1400 – 1410 Jessica Pal Rowan County Senior High School Introduction Data Analysis Summary Acknowledgements Results A pulsar is a rapidly rotating.
1 Stellar Remnants White Dwarfs, Neutron Stars & Black Holes These objects normally emit light only due to their very high temperatures. Normally nuclear.
Stellar Evolution. Clouds of gas and dust are floating around in space These are called “nebula”
The Red Giant The red giant is a star that has a large mass and heat.
Remnant of a Type II supernova explosion Iron core collapses until neutrons are squeezed tightly together During the explosion core remains intact, outer.
The Death of Stars Stellar Recycling. The fate of the Sun Eventually fusion will exhaust the hydrogen supply from the center of the Sun. Internal pressure.
Note that the following lectures include animations and PowerPoint effects such as fly-ins and transitions that require you to be in PowerPoint's Slide.
Our universe How old is our universe? Our universe is 15 billion years old How did the universe begin? It began with the big bang What is the tempreture.
Sun, Moon, Earth, What kind of life cycle does a star have?
1. Evolution Change over time Astronomers refer to the evolution of a star as “The Life Cycle of a Star.” How a star evolves is mainly dependent upon.
Astronomy 1020-H Stellar Astronomy Spring_2015 Day-36.
Studying the Lives of Stars  Stars don’t last forever  Each star is born, goes through its life cycle, and eventually die.
Death of Stars II Physics 113 Goderya Chapter(s): 14
Goal: To understand special stars. Objectives: 1)To learn about Neutron Stars 2)To learn about Pulsars 3)To understand Stars that erupt.
Neutron Stars & Black Holes (Chapter 11) APOD. Student Learning Objective Indentify properties of Neutron Stars & Black Holes NASA.
Life Cycle of Stars Mr. Weaver.
White dwarfs cool off and grow dimmer with time. The White Dwarf Limit A white dwarf cannot be more massive than 1.4M Sun, the white dwarf limit (or Chandrasekhar.
Neutron Stars & Black Holes. Neutron Stars and Black Holes I. Neutron Stars A. Remnant from the collapse of a _________. B. During the core collapse of.
Astronomy: A Beginner’s Guide to the Universe Seventh Edition © 2013 Pearson Education, Inc. Neutron Stars and Black Holes Chapter 13 Clickers.
Chapter 10 The Bizarre Stellar Graveyard. The Products of Star Death White Dwarfs Neutron Stars Black Holes.
BEYOND OUR SOLAR SYSTEM CHAPTER 25 Part II. INTERSTELLAR MATTER NEBULA BRIGHT NEBULAE EMISSION NEBULA REFLECTION NEBULA SUPERNOVA REMANTS DARK NEBULAE.
© 2010 Pearson Education, Inc. The Bizarre Stellar Graveyard.
Stars. Nebulae A nebula is a cloud of dust, hydrogen gas and plasma. The material clumps together to form a protostar. This is the first stage in the.
 How Stars Form: -The space around stars contains gas/dust  A nebula is a large cloud of dust/gas, some nebulas glow lit by other stars and some are.
The Life History of Stars How stars form and die.
Death of sun-like Massive star death Elemental my dear Watson Novas Neutron Stars Black holes $ 200 $ 200$200 $ 200 $ 200 $400 $ 400$400 $ 400$400.
Units to read 67,68, 69, 70, 54.
Earth Science 25.2B : Stellar Evolution
Outline of Ch 11: The H-R Diagram (cont.)
The lifecycles of stars
A star's Life Cycle at a Glance
Evolution of the Solar System
Take out 2 sheets of paper for notes
The Death of a Star.
Section 3 – pg 608 Lives of Stars
Origin of our Universe:
“I always wanted to be somebody, but I should have been more specific
The Death of a Star.
Stars and Galaxies.
Presentation transcript:

Your Discovery is Here. The Pulsar Search Collaboratory

Questions We Will Answer What is a pulsar? Why do astronomers study pulsars? What is the PSC? How can you get involved?

What is a pulsar? A pulsar is a rapidly rotating neutron star that beam radio waves towards Earth. This brings up some new questions...  What is a neutron star?  Why is it rotating?  Why is it beaming radio waves?

What is a Neutron Star? A neutron star is the remnant of a massive star that has ended its life  It is called a neutron star because it is made primarily of neutrons

Life of a Massive Star

Stars spend most of their lives fusing hydrogen into helium  The star is literally blowing itself apart while gravity tries to crush it When a star runs out of hydrogen it tries to fuse heavier elements

Death of a Massive Star No energy can be extracted by fusing iron Without a source of energy, what do you think will happen to the star? Gravity Wins

Supernovae 1) Gravity causes the outer layers to collapse at super-sonic speeds 2) When outer layers hit the Iron core, they pile up and “bounce back” 3) Most of the star explodes

A Neutron Star is Born The star's core is left behind and goes through a wild transformation What was once a core of Iron is now a super-dense neutron star

Neutron Star Facts 1.4 times as massive as our Sun (500,000 Earth masses) About 12 miles across 1 teaspoon would weigh 5.5 billion tons 10 million ºF at birth Some spin several times a second or faster Why do neutron stars spin?

Neutron Star Facts Neutron stars can also highly magnetized  Fields thousands – billions times stronger than the strongest man made magnets This has an amazing effect  Neutron stars can emit beams of radio waves

Do You See a Pulsar? Pulsars are like interstellar lighthouses If the beam points towards Earth, we see a pulse of radio waves

Let's Listen B0329

Let's Listen B1937

Let's Listen Crab Pulsar

Let's Listen Vela Pulsar

Let's Listen J0437

What did you notice?

Pulsar Recycling Some pulsars spin faster than others  When the pulsar period is a few milliseconds, we call it a millisecond pulsar MSPs are actually recycled pulsars and are the most exciting kinds

Millisecond Pulsars

Why Do We Care? Pulsars have been used to study... 1) Einstein's general theory of relativity 2) Quantum mechanics 3) Ultra-dense matter 4) Super strong magnetic fields 5) Binary star systems 6) Stellar evolution 7) The plasma content of our galaxy 8) The magnetic field of our galaxy 9) Double pulsars and double neutron star systems

Why Do We Care?... 1) Old stellar populations called globular clusters 2) Emission mechanisms in radio waves, x-rays, and gamma-rays 3) The fastest rotating pulsar (716 times a second!) And in the future... 1) Pulsars will be found orbiting black holes 2) Pulsars will tell us how matter behaves at super high density 3) Pulsars will directly detect gravitational waves

To Review... Pulsars are rapidly rotating neutron stars that beam radio waves towards the Earth, and......Pulsars are some of the most powerful tools in the universe for studying some really awesome science You have the chance to help us find more!

The Pulsar Search Collaboratory In 2007 and international team of astronomers used the Green Bank Telescope in Green Bank, WV to hunt for new pulsars The Green Bank is located in the middle of the National Radio Quiet Zone  Nearest Wal-Mart is ~45 minutes away

The Pulsar Search Collaboratory We collected 34 TB of data and observed for 1,500 hours! Now we want students to help analyze the data!

The Pulsar Search Collaboratory As a member of the PSC you will be a real astronomer, working along with professionals You will have access to data that no one else in the world has access to You will experience first hand how science is done You might even make unique and amazing discoveries discoveries

PSC Discovery

What We Do PSC members form teams at their schools and work together to analyze the data  We are up to 43 participating schools Teachers act as guides and mentors but most of the work is up to you! In the process you will learn more about astronomy, science, and technology

Collaborating With Each Other Like professional astronomers, you will collaborate with others

Collaborate With Each Other Active students from each team will be able to present their results at the Capstone each spring at West Virginia University You will be able to see what others have learned and make new friends

We hope you'll join us!