neutron star - The University of Chicago
... ➢ Core-collapse supernovae result from the iron core collapse of massive stars. ➢ The process of iron-core collapse is one of the most complicated problems in modern astrophysics and involves virtually all fields of modern physics. ➢ Multi-dimensional supercomputer simulations key to understanding c ...
... ➢ Core-collapse supernovae result from the iron core collapse of massive stars. ➢ The process of iron-core collapse is one of the most complicated problems in modern astrophysics and involves virtually all fields of modern physics. ➢ Multi-dimensional supercomputer simulations key to understanding c ...
Red Giant Red Giant White Giant Red Giant White Giant White Giant
... temperatures make the fusion of helium into carbon possible. Mass: 1 - 4 Solar Mass StarPower Points: 7 ...
... temperatures make the fusion of helium into carbon possible. Mass: 1 - 4 Solar Mass StarPower Points: 7 ...
Supernovae - Michigan State University
... presence of 22Ne reduces Ye below 0.5 and therefore the amount of 56Ni produced ...
... presence of 22Ne reduces Ye below 0.5 and therefore the amount of 56Ni produced ...
The H-R Diagram
... • As it expands, its opacity drops and we see to a deeper and deeper and hotter and hotter depth, so the star moves left on the HR diagram • Until… we see the electron degenerate core; the new white dwarf created at the center • This core can now cool, as it can’t collapse further and it is exposed ...
... • As it expands, its opacity drops and we see to a deeper and deeper and hotter and hotter depth, so the star moves left on the HR diagram • Until… we see the electron degenerate core; the new white dwarf created at the center • This core can now cool, as it can’t collapse further and it is exposed ...
LIFE CYCLE OF STARS
... larger stars, so they begin to shed its gases outside its core forming a planetary nebula . The center of the small star then begins to cool to become a white dwarf and cools more to become a black dwarf. Large Stars Larger stars are hotter than small stars but still need more energy for the cor ...
... larger stars, so they begin to shed its gases outside its core forming a planetary nebula . The center of the small star then begins to cool to become a white dwarf and cools more to become a black dwarf. Large Stars Larger stars are hotter than small stars but still need more energy for the cor ...
What are constellations? - Red Hook Central Schools
... a white bull. He tricked Europa into climbing on his back. He then swam out to sea and carried her to Crete. In Egypt, the constellation was a reminder of Apis, the Bull of Memphis. He served as a servant to Osiris, god of the Sun. Just as famous as Taurus is the group of stars within it. The Pleiad ...
... a white bull. He tricked Europa into climbing on his back. He then swam out to sea and carried her to Crete. In Egypt, the constellation was a reminder of Apis, the Bull of Memphis. He served as a servant to Osiris, god of the Sun. Just as famous as Taurus is the group of stars within it. The Pleiad ...
Stellar Evolution: the Death of Stars
... – Type 1a supernova: explosion of white dwarf in a closed binary system; mass accumulation exceeds the critical mass and ignites the carbon fusion at the core – Type 1b supernova: core collapse of massive star with hydrogen shell lost before – Type 1c supernova: core collapse of massive star with bo ...
... – Type 1a supernova: explosion of white dwarf in a closed binary system; mass accumulation exceeds the critical mass and ignites the carbon fusion at the core – Type 1b supernova: core collapse of massive star with hydrogen shell lost before – Type 1c supernova: core collapse of massive star with bo ...
NCEA Level 2 Earth and Space Science (91192) 2015
... So Deneb is very bright and luminous in the night sky, while Sirius B is very dim in the night sky, despite being the same surface temperature. The fact their surface temperature is the same means that both stars are emitting the same amount of energy per square metre. As Deneb has a larger surface ...
... So Deneb is very bright and luminous in the night sky, while Sirius B is very dim in the night sky, despite being the same surface temperature. The fact their surface temperature is the same means that both stars are emitting the same amount of energy per square metre. As Deneb has a larger surface ...
Mr. Traeger`s Light and Stars PowerPoint
... A cosmological red-shift indicates that stars and galaxies are moving away from us. As Mr. Auld pointed out, this means that our Universe is expanding, or moving outwards. ...
... A cosmological red-shift indicates that stars and galaxies are moving away from us. As Mr. Auld pointed out, this means that our Universe is expanding, or moving outwards. ...
Skylights - May 2017 - Astronomical Society of Northern New England
... will pass fairly close to this star in about 2 million years if no one intercepts it before then. So when you look at these two orange objects in the sky this month, remember that Mars is only 20 minutes away at the speed of light, but that Aldebaran is 65 years away at the speed of light. So the li ...
... will pass fairly close to this star in about 2 million years if no one intercepts it before then. So when you look at these two orange objects in the sky this month, remember that Mars is only 20 minutes away at the speed of light, but that Aldebaran is 65 years away at the speed of light. So the li ...
Extra-Solar Planets
... 1) Old enough to allow time for evolution (rules out high-mass stars - 1%) 2) Need to have stable orbits (might rule out binary/multiple star systems - 50%) 3) Size of “habitable zone”: region in which a planet of the right size could have liquid water on its surface. Even so… billions of stars in t ...
... 1) Old enough to allow time for evolution (rules out high-mass stars - 1%) 2) Need to have stable orbits (might rule out binary/multiple star systems - 50%) 3) Size of “habitable zone”: region in which a planet of the right size could have liquid water on its surface. Even so… billions of stars in t ...
AST 301 Introduction to Astronomy - University of Texas Astronomy
... Since distance α 1 / parallax, Spica must be at twice the distance of Canopus. (The numbers are 100 pc and 200 pc, but you don’t need to know that.) The more distant star (Spica) appears fainter. Since it is twice as distant as Canopus, it appears 4 times fainter, or ¼ as bright. We could use the ma ...
... Since distance α 1 / parallax, Spica must be at twice the distance of Canopus. (The numbers are 100 pc and 200 pc, but you don’t need to know that.) The more distant star (Spica) appears fainter. Since it is twice as distant as Canopus, it appears 4 times fainter, or ¼ as bright. We could use the ma ...
Shocking Truth about Massive Stars Lidia Oskinova Chandra’s First Decade of Discovery
... attributed only to the wind opacity (Oskinova et al. ’06) X−ray spectra of single WN stars are harder than spectra of O−stars (Ignace et al. 2003) Single WC stars are X−ray quiet (Oskinova et al. 2003) X−ray bright WR stars are binaries (Oskinova & Hamann ...
... attributed only to the wind opacity (Oskinova et al. ’06) X−ray spectra of single WN stars are harder than spectra of O−stars (Ignace et al. 2003) Single WC stars are X−ray quiet (Oskinova et al. 2003) X−ray bright WR stars are binaries (Oskinova & Hamann ...
Space Explorations - Holy Cross Collegiate
... • Astronomers refract the light from distant stars to determine what the star is made of. Stars have dark bands in distinct sequences and thicknesses on their spectra. • Each element that is present in the star creates its own black-line ‘fingerprint’. • The spectra of the stars are then compared to ...
... • Astronomers refract the light from distant stars to determine what the star is made of. Stars have dark bands in distinct sequences and thicknesses on their spectra. • Each element that is present in the star creates its own black-line ‘fingerprint’. • The spectra of the stars are then compared to ...
Chapter 8 - TeacherWeb
... or spheres. Usually have bright centers with very little dust and gas. Contain mostly old stars---b/c little to no gas to form new stars. Two types: giant elliptical galaxies and dwarf elliptical galaxies. Irregular Galaxies: galaxies that don’t fit into any certain category or class. Their shape is ...
... or spheres. Usually have bright centers with very little dust and gas. Contain mostly old stars---b/c little to no gas to form new stars. Two types: giant elliptical galaxies and dwarf elliptical galaxies. Irregular Galaxies: galaxies that don’t fit into any certain category or class. Their shape is ...
CAPSTONE-poster
... A planetary nebula forms when a star has aged into a red giant (Mira star) with a dormant carbon core and an outer helium burning shell. It can no longer support itself by nuclear fusion reactions in its center. The gravity from the material in the outer part of the star takes its inevitable toll on ...
... A planetary nebula forms when a star has aged into a red giant (Mira star) with a dormant carbon core and an outer helium burning shell. It can no longer support itself by nuclear fusion reactions in its center. The gravity from the material in the outer part of the star takes its inevitable toll on ...
Journey to the Stars: Activities for Grades 9-12
... Answers may include: Distances in astronomy are too vast to be measured in kilometers and miles. The following units are used to measure the linear distances between stars, galaxies, and other distant celestial objects: A light-year (ly) is the distance light travels in one year (1 ly = ~1.0 x 1013 ...
... Answers may include: Distances in astronomy are too vast to be measured in kilometers and miles. The following units are used to measure the linear distances between stars, galaxies, and other distant celestial objects: A light-year (ly) is the distance light travels in one year (1 ly = ~1.0 x 1013 ...
Final review - Physics and Astronomy
... WFIRST – Understanding Dark Energy (formerly the “Joint Dark Energy Mission” [JDEM]) ...
... WFIRST – Understanding Dark Energy (formerly the “Joint Dark Energy Mission” [JDEM]) ...
Lecture 4: Telescopes
... Light Gathering Power - proportional to the square of the size of the mirror (area of the light bucket) Limiting magnitude for a telescope is m = 2.7 + 5 log D Where D is telescope aperture in millimeters. Resolving Power - Smallest angular separation that the telescope can resolve 4.56 / diameter o ...
... Light Gathering Power - proportional to the square of the size of the mirror (area of the light bucket) Limiting magnitude for a telescope is m = 2.7 + 5 log D Where D is telescope aperture in millimeters. Resolving Power - Smallest angular separation that the telescope can resolve 4.56 / diameter o ...
Star Formation
... Massive newborn stars are indicated by the arrows. Note that some (2, 3, & 4) are hidden to visible light. Arrows 1 and 5 indicate a compact cluster of bright young stars. Sources 6 & 7 may be due to outflow jets from the cluster 5. ...
... Massive newborn stars are indicated by the arrows. Note that some (2, 3, & 4) are hidden to visible light. Arrows 1 and 5 indicate a compact cluster of bright young stars. Sources 6 & 7 may be due to outflow jets from the cluster 5. ...
Cygnus (constellation)
Cygnus /ˈsɪɡnəs/ is a northern constellation lying on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. The swan is one of the most recognizable constellations of the northern summer and autumn, it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross). Cygnus was among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.Cygnus contains Deneb, one of the brightest stars in the night sky and one corner of the Summer Triangle, as well as some notable X-ray sources and the giant stellar association of Cygnus OB2. One of the stars of this association, NML Cygni, is one of the largest stars currently known. The constellation is also home to Cygnus X-1, a distant X-ray binary containing a supergiant and unseen massive companion that was the first object widely held to be a black hole. Many star systems in Cygnus have known planets as a result of the Kepler Mission observing one patch of the sky, the patch is the area around Cygnus. In addition, most of the eastern part of Cygnus is dominated by the Hercules–Corona Borealis Great Wall, a giant galaxy filament that is the largest known structure in the observable universe; covering most of the northern sky.