The “Big Bang” Theory
... • Matter started to “clump” back together • This was due to gravity • The galaxies, stars and planets formed from these clumps of dust and gas • There are billions of galaxies in the universe and each galaxy consists of billions of stars ...
... • Matter started to “clump” back together • This was due to gravity • The galaxies, stars and planets formed from these clumps of dust and gas • There are billions of galaxies in the universe and each galaxy consists of billions of stars ...
solution
... pressure, density and temperature of the central region of a protostar. Once the temperature exceeds a few million K, H begins to fuse into He (via the p-p chain in a Sun-sized protostar, or the CNO cycle in a larger one). The energy released in the thermonuclear fusion reactions causes an outward p ...
... pressure, density and temperature of the central region of a protostar. Once the temperature exceeds a few million K, H begins to fuse into He (via the p-p chain in a Sun-sized protostar, or the CNO cycle in a larger one). The energy released in the thermonuclear fusion reactions causes an outward p ...
File
... 24) What shape is the Milky Way? 25) What is the local group? 26) How many stars are in the Milky Way? 27) Approximately how big is the Milky Way 28) The largest known galaxy is what type of galaxy? 29) What is a light year? Section 4 30) What is cosmology? 31) How old is the universe? 32) What is t ...
... 24) What shape is the Milky Way? 25) What is the local group? 26) How many stars are in the Milky Way? 27) Approximately how big is the Milky Way 28) The largest known galaxy is what type of galaxy? 29) What is a light year? Section 4 30) What is cosmology? 31) How old is the universe? 32) What is t ...
Chapter 19 Star Formation
... Star formation happens when part of a dust cloud begins to contract under its own gravitational force; as it collapses, the center becomes hotter and hotter until nuclear fusion begins in the core. ...
... Star formation happens when part of a dust cloud begins to contract under its own gravitational force; as it collapses, the center becomes hotter and hotter until nuclear fusion begins in the core. ...
15-3
... Stars are born in nebula (a vast cloud of gas and dust) 2. Gravity pulls gas together 3. When nuclear fusion takes place a star is born 4. The youngest stars are called protostars ...
... Stars are born in nebula (a vast cloud of gas and dust) 2. Gravity pulls gas together 3. When nuclear fusion takes place a star is born 4. The youngest stars are called protostars ...
Life Cycles of Stars
... The End of the Line for Massive Stars • Massive stars burn a succession of elements. • Iron is the most stable element and cannot be fused further. ...
... The End of the Line for Massive Stars • Massive stars burn a succession of elements. • Iron is the most stable element and cannot be fused further. ...
29.3 – Stellar Evolution
... •Neutron stars = after an explosion, the core of a supernova contracts into a small dense ball of neutrons •Neutron star has more mass than the sun and rotates very rapidly •Some neutron stars emit 2 beams of ...
... •Neutron stars = after an explosion, the core of a supernova contracts into a small dense ball of neutrons •Neutron star has more mass than the sun and rotates very rapidly •Some neutron stars emit 2 beams of ...
Chapter 27 Review Guide// ESS
... 13. Draw the diagram that astronomers use to classify stars. Include the title, label both axes, and include the four main classifications of stars in their proper positions on the diagram. (HR Diagram, Magnitude, Temperature, ...
... 13. Draw the diagram that astronomers use to classify stars. Include the title, label both axes, and include the four main classifications of stars in their proper positions on the diagram. (HR Diagram, Magnitude, Temperature, ...
![Star Cycle [Recovered]](http://s1.studyres.com/store/data/008086481_1-2d8d14aa9163345f6c20c4baab23c80a-300x300.png)
Star Cycle [Recovered]
... force of fusion is less than the ____________ outward inward force of gravity, the star will shrink in size, becoming a WHITE DWARF _________ ____________. ...
... force of fusion is less than the ____________ outward inward force of gravity, the star will shrink in size, becoming a WHITE DWARF _________ ____________. ...
Recent advances in star
... areas of astronomy today. It is a key to understanding not only the evolution of the Milky Way, but also the immense luminosities of starburst and merging galaxies and the emission from high-redshift galaxies. Inevitably, most work on star formation focuses on the Milky Way, as here we have a grands ...
... areas of astronomy today. It is a key to understanding not only the evolution of the Milky Way, but also the immense luminosities of starburst and merging galaxies and the emission from high-redshift galaxies. Inevitably, most work on star formation focuses on the Milky Way, as here we have a grands ...
On my webpage, find the link Star Life Cycle and use it to answer the
... A Solar Mass is equal to the mass of the Sun. If, for example, a star has 2 solar masses, it means it has twice as much mass as the Sun. Click the “brown dwarf” link in Option 1 6. How many solar masses are brown dwarfs on average? ...
... A Solar Mass is equal to the mass of the Sun. If, for example, a star has 2 solar masses, it means it has twice as much mass as the Sun. Click the “brown dwarf” link in Option 1 6. How many solar masses are brown dwarfs on average? ...
wk9 (part 1)
... radiation continued to interact strongly B. The Universe was matter dominated at this epoch C. Protons and electrons formed stable hydrogen atoms for the first time at this epoch, and the matter in the Universe became mostly transparent to radiation D. This epoch was immediately followed by Inflatio ...
... radiation continued to interact strongly B. The Universe was matter dominated at this epoch C. Protons and electrons formed stable hydrogen atoms for the first time at this epoch, and the matter in the Universe became mostly transparent to radiation D. This epoch was immediately followed by Inflatio ...
Formation of Stars
... • Space between the stars within a galaxy is not empty. • The interstellar medium (ISM) consists of gas and dust. • Gas is mainly hydrogen, but also contains other elements and molecules. • Density is typically around 1 atom per cubic centimeter. ...
... • Space between the stars within a galaxy is not empty. • The interstellar medium (ISM) consists of gas and dust. • Gas is mainly hydrogen, but also contains other elements and molecules. • Density is typically around 1 atom per cubic centimeter. ...
Slide 1
... After the Sun's core hydrogen is depleted by nuclear fusion the core will consist primarily of 1) carbon. 2) deuterium. 3) helium. 4) oxygen. ...
... After the Sun's core hydrogen is depleted by nuclear fusion the core will consist primarily of 1) carbon. 2) deuterium. 3) helium. 4) oxygen. ...
ASTR100 Class 01 - University of Maryland Department of
... What would happen to a protostar that formed without any rotation at all? A. Its jets would go in multiple directions. B. It would not have planets. C. It would be very bright in the infrared. D. It would not be round. ...
... What would happen to a protostar that formed without any rotation at all? A. Its jets would go in multiple directions. B. It would not have planets. C. It would be very bright in the infrared. D. It would not be round. ...
A Star’s Life
... 1. Read the two life cycle assignments (part I and II). 2. Create a graphic organizer that summarizes what you are reading. 3. Check your answers to the questions of part I (summary questions at the end) and part II (sections 1, 2, 4 and 5) in schoology. Note: the true/false section (Those A-Maz-Ing ...
... 1. Read the two life cycle assignments (part I and II). 2. Create a graphic organizer that summarizes what you are reading. 3. Check your answers to the questions of part I (summary questions at the end) and part II (sections 1, 2, 4 and 5) in schoology. Note: the true/false section (Those A-Maz-Ing ...
Life cycle of the Stars - Christos N. Hadjichristidis
... Black Hole (If mass of core > 5 x Solar) • Not even compacted neutrons can support weight of very massive stars. http://chandra.harvard.edu/resources/animatio ns/black_hole_sm.mov ...
... Black Hole (If mass of core > 5 x Solar) • Not even compacted neutrons can support weight of very massive stars. http://chandra.harvard.edu/resources/animatio ns/black_hole_sm.mov ...
N(M)
... Photoionisation exists but is inefficient because: • available species (e.g. C I) not abundant • small range of photon energies (11.3-13.6 eV = 912-1110 Å) • max KE obtainable is 2.3 eV - quite low so not much heating ...
... Photoionisation exists but is inefficient because: • available species (e.g. C I) not abundant • small range of photon energies (11.3-13.6 eV = 912-1110 Å) • max KE obtainable is 2.3 eV - quite low so not much heating ...
Review Day
... stars held together by gravity. There are 3 types of galaxies: Spiral: Pinwheel shape with stars on the arms and gas and dust clustered in the center. Thought that a black hole is in center. ...
... stars held together by gravity. There are 3 types of galaxies: Spiral: Pinwheel shape with stars on the arms and gas and dust clustered in the center. Thought that a black hole is in center. ...
Lecture 13 - Star Formation
... it picks up speed and energy. It is slowed by friction and the energy is converted to heat. ...
... it picks up speed and energy. It is slowed by friction and the energy is converted to heat. ...
File
... Stars can be arranged based on their luminosity (absolute magnitude) and temperature (spectral type) using a Hertzsprung-Russell (H-R) diagram ...
... Stars can be arranged based on their luminosity (absolute magnitude) and temperature (spectral type) using a Hertzsprung-Russell (H-R) diagram ...
Star formation
Star formation is the process by which dense regions within molecular clouds in interstellar space, sometimes referred to as ""stellar nurseries"" or ""star-forming regions"", collapse to form stars. As a branch of astronomy, star formation includes the study of the interstellar medium (ISM) and giant molecular clouds (GMC) as precursors to the star formation process, and the study of protostars and young stellar objects as its immediate products. It is closely related to planet formation, another branch of astronomy. Star formation theory, as well as accounting for the formation of a single star, must also account for the statistics of binary stars and the initial mass function.In June 2015, astronomers reported evidence for Population III stars in the Cosmos Redshift 7 galaxy at z = 6.60. Such stars are likely to have existed in the very early universe (i.e., at high redshift), and may have started the production of chemical elements heavier than hydrogen that are needed for the later formation of planets and life as we know it.