![Page 1: Neutron Stars and Pulsars Marcus Shinbo Melissa Onishi Astronomy Pd. 3 18, April, 2011](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649d095503460f949dbae0/html5/thumbnails/1.jpg)
Neutron Stars and PulsarsMarcus ShinboMelissa Onishi
Astronomy Pd. 318, April, 2011
![Page 2: Neutron Stars and Pulsars Marcus Shinbo Melissa Onishi Astronomy Pd. 3 18, April, 2011](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649d095503460f949dbae0/html5/thumbnails/2.jpg)
What is a neutron star?
A neutron star is about 20 km in diameter
They have the mass of about 1.4 times our Sun
A neutron star possesses a surface gravitational field about 2 x 1011 times that of Earth.
![Page 3: Neutron Stars and Pulsars Marcus Shinbo Melissa Onishi Astronomy Pd. 3 18, April, 2011](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649d095503460f949dbae0/html5/thumbnails/3.jpg)
What is a neutron star cont’d?
Neutron stars also have magnetic fields a million times stronger than the magnetic fields on earth.
![Page 4: Neutron Stars and Pulsars Marcus Shinbo Melissa Onishi Astronomy Pd. 3 18, April, 2011](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649d095503460f949dbae0/html5/thumbnails/4.jpg)
Where is the Neutron Star in Star cycle?
Neutron stars are one of the possible ends for a star
They result from massive stars which have mass greater than 4 to 8 times that of our Sun
![Page 5: Neutron Stars and Pulsars Marcus Shinbo Melissa Onishi Astronomy Pd. 3 18, April, 2011](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649d095503460f949dbae0/html5/thumbnails/5.jpg)
Where is the Neutron Star in the Star Cycle Cont’d
After these stars have finished burning their nuclear fuel, they undergo a supernova explosion
This explosion blows off the outer layers of a star into a beautiful supernova remnant.
![Page 6: Neutron Stars and Pulsars Marcus Shinbo Melissa Onishi Astronomy Pd. 3 18, April, 2011](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649d095503460f949dbae0/html5/thumbnails/6.jpg)
Where do Neutron Stars appear?
Neutron stars may appear in supernova remnants, as isolated objects, or in binary systems
When a neutron star is in a binary system, astronomers are able to measure its mass.
![Page 7: Neutron Stars and Pulsars Marcus Shinbo Melissa Onishi Astronomy Pd. 3 18, April, 2011](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649d095503460f949dbae0/html5/thumbnails/7.jpg)
PULSARS
![Page 8: Neutron Stars and Pulsars Marcus Shinbo Melissa Onishi Astronomy Pd. 3 18, April, 2011](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649d095503460f949dbae0/html5/thumbnails/8.jpg)
What is a Pulsar?
Pulsars are rotating neutron stars
Pulsars appear to pulse because they rotate
![Page 9: Neutron Stars and Pulsars Marcus Shinbo Melissa Onishi Astronomy Pd. 3 18, April, 2011](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649d095503460f949dbae0/html5/thumbnails/9.jpg)
Anatomy of a Pulsar
![Page 10: Neutron Stars and Pulsars Marcus Shinbo Melissa Onishi Astronomy Pd. 3 18, April, 2011](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649d095503460f949dbae0/html5/thumbnails/10.jpg)
Discovery
Pulsars were discovered in late 1967 by graduate student Jocelyn Bell Burnell as radio sources that blink on and off at a constant frequency
![Page 11: Neutron Stars and Pulsars Marcus Shinbo Melissa Onishi Astronomy Pd. 3 18, April, 2011](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649d095503460f949dbae0/html5/thumbnails/11.jpg)
Functions
Pulsars are spinning neutron stars that have jets of particles moving almost at the speed of light streaming out above their magnetic poles
![Page 12: Neutron Stars and Pulsars Marcus Shinbo Melissa Onishi Astronomy Pd. 3 18, April, 2011](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649d095503460f949dbae0/html5/thumbnails/12.jpg)
Pulsar’s Magnetic field and its similarities to earth’s magnetic field
For a similar reason that "true north" and "magnetic north" are different on Earth, the magnetic and rotational axes of a pulsar are also misaligned.
![Page 13: Neutron Stars and Pulsars Marcus Shinbo Melissa Onishi Astronomy Pd. 3 18, April, 2011](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649d095503460f949dbae0/html5/thumbnails/13.jpg)
Video TIME!!!!! :D
http://www.youtube.com/watch?v=FOfozgqMmO0
1:18-10:00
![Page 14: Neutron Stars and Pulsars Marcus Shinbo Melissa Onishi Astronomy Pd. 3 18, April, 2011](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649d095503460f949dbae0/html5/thumbnails/14.jpg)
THANKS FOR LISTENING!!! :D
![Page 15: Neutron Stars and Pulsars Marcus Shinbo Melissa Onishi Astronomy Pd. 3 18, April, 2011](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649d095503460f949dbae0/html5/thumbnails/15.jpg)
Works Cited
"Neutron Stars and Pulsars — Einstein Online." Welcome to Einstein Online - Relativity and More! — Einstein Online. Web. 18 Apr. 2011. <http://www.einstein-online.info/elementary/blackHoles/pulsars>.
"Neutron Stars and Pulsars - Introduction." Imagine The Universe! Home Page. Web. 18 Apr. 2011. <http://imagine.gsfc.nasa.gov/docs/science/know_l1/pulsars.html>.
"Neutron Stars and Pulsars." Test Page for Apache Installation. Web. 18 Apr. 2011. <http://hyperphysics.phy-astr.gsu.edu/hbase/astro/pulsar.html>.