Exploring the Universe
... C. The Death of a Star 1. When the hydrogen fuel has run out & fusion can no longer continue, the star collapses because the forces are no longer balanced 2. Core collapses because of its own gravity & then rebounds with a shock wave that violently blows the star’s outer layers away from the core ...
... C. The Death of a Star 1. When the hydrogen fuel has run out & fusion can no longer continue, the star collapses because the forces are no longer balanced 2. Core collapses because of its own gravity & then rebounds with a shock wave that violently blows the star’s outer layers away from the core ...
1 au d p = 1 au d
... Starting from the observed luminosity function, possible to derive an estimate for the Initial Mass Function (IMF). To define the IMF, imagine that we form a large number of stars. Then: the number of stars that have been x (M)DM = born with initial masses between M and M+DM (careful not to confuse ...
... Starting from the observed luminosity function, possible to derive an estimate for the Initial Mass Function (IMF). To define the IMF, imagine that we form a large number of stars. Then: the number of stars that have been x (M)DM = born with initial masses between M and M+DM (careful not to confuse ...
Document
... USING KEY TERMS The statements below are false. For each statement, replace the underlined term to make a true statement. ...
... USING KEY TERMS The statements below are false. For each statement, replace the underlined term to make a true statement. ...
Chapter 1 Vocabulary – The Puzzled of Matter
... Constellation – a group of stars that appears to from a pattern as seen from Earth Star System – a group of two or more stars held together by gravity Binary Star – a star system with two stars that revolve around each other 3 types of Star Clusters 1. Open cluster – has disorganized or loose appear ...
... Constellation – a group of stars that appears to from a pattern as seen from Earth Star System – a group of two or more stars held together by gravity Binary Star – a star system with two stars that revolve around each other 3 types of Star Clusters 1. Open cluster – has disorganized or loose appear ...
ISM&Galaxy
... able to know the luminosity of stars – even very distant stars… Or perhaps you can make use of globular clusters. Then there is the question of whether there is any absorption between the stars. ...
... able to know the luminosity of stars – even very distant stars… Or perhaps you can make use of globular clusters. Then there is the question of whether there is any absorption between the stars. ...
Understanding Stars
... Globules condense from a nebula to form a stellar nursery The stellar nurseries are big enough to form many stars – Star clusters: open or globular Spectroscopy Every element has it’s own unique spectrum – Use this to identify the composition of a gas • Chromosphere or corona Extremely dense things ...
... Globules condense from a nebula to form a stellar nursery The stellar nurseries are big enough to form many stars – Star clusters: open or globular Spectroscopy Every element has it’s own unique spectrum – Use this to identify the composition of a gas • Chromosphere or corona Extremely dense things ...
Section 25.1 Properties of Stars
... Binary Stars and Stellar Mass A binary star is one of two stars revolving around a common center of mass under their mutual gravitational attraction. Binary stars are used to determine the star property most difficult to calculate—its mass. Common Center of Mass ...
... Binary Stars and Stellar Mass A binary star is one of two stars revolving around a common center of mass under their mutual gravitational attraction. Binary stars are used to determine the star property most difficult to calculate—its mass. Common Center of Mass ...
Stellar Evolution
... how a star’s life and death will proceed. • We can “weigh” stars that are in binary systems (two stars orbiting each other). Fortunately, most stars fall into this category. ...
... how a star’s life and death will proceed. • We can “weigh” stars that are in binary systems (two stars orbiting each other). Fortunately, most stars fall into this category. ...
WebQuest-The-Life-Cycle-of-Stars-1
... Go to the website http://map.gsfc.nasa.gov/universe/rel_stars.html. Read the short section on “Where are stars born” and see pictures of the protostars of M16: The Eagle Nebula and other nebulae on this page. Continue by reading up on Main Sequence Stars and find out how our sun compares in mass to ...
... Go to the website http://map.gsfc.nasa.gov/universe/rel_stars.html. Read the short section on “Where are stars born” and see pictures of the protostars of M16: The Eagle Nebula and other nebulae on this page. Continue by reading up on Main Sequence Stars and find out how our sun compares in mass to ...
Classifying Stars (pages 753–754) Key Concept: Characteristics
... from Earth does not look very bright. But the sun looks very bright because it is so close to Earth. ...
... from Earth does not look very bright. But the sun looks very bright because it is so close to Earth. ...
Stars - Robert M. Hazen
... – Result of collapse large star – Nothing escapes from surface – Cannot see them • See impact on other stars • Detect x-rays, gamma rays ...
... – Result of collapse large star – Nothing escapes from surface – Cannot see them • See impact on other stars • Detect x-rays, gamma rays ...
MSci Astrophysics 210PHY412 - Queen's University Belfast
... Students will learn how to interpret observational characteristics of stars in terms of the underlying physical parameters You should gain an understanding of how stars of different mass evolve, and what end products are produced Students should learn what causes planetary nebulae and supernovae You ...
... Students will learn how to interpret observational characteristics of stars in terms of the underlying physical parameters You should gain an understanding of how stars of different mass evolve, and what end products are produced Students should learn what causes planetary nebulae and supernovae You ...
About the Universe The Universe is everything that exists, including
... Stars are made in swirling clouds called nebulas. Nebulas are made of gas and dust which bind together, pulled by gravity, to form gigantic, spinning balls. As the mass falls together it gets hot. A star is formed when it is hot enough for the hydrogen nuclei to fuse together to make helium. This nu ...
... Stars are made in swirling clouds called nebulas. Nebulas are made of gas and dust which bind together, pulled by gravity, to form gigantic, spinning balls. As the mass falls together it gets hot. A star is formed when it is hot enough for the hydrogen nuclei to fuse together to make helium. This nu ...
Integrative Studies 410 Our Place in the Universe
... the stars by sketching the position and the shape of the moon and the bright stars in the sky. Document changes as the days go by. • Time: Once you know how to do it, this takes several minutes per observation. • Commitment: Do this over several, not necessarily consecutive days, exact time does not ...
... the stars by sketching the position and the shape of the moon and the bright stars in the sky. Document changes as the days go by. • Time: Once you know how to do it, this takes several minutes per observation. • Commitment: Do this over several, not necessarily consecutive days, exact time does not ...
STARS
... • When all the hydrogen is used up the core collapses • The absence of pressure causes a neutron star or a black hole. • The explosion can be bright enough to see during the day! ...
... • When all the hydrogen is used up the core collapses • The absence of pressure causes a neutron star or a black hole. • The explosion can be bright enough to see during the day! ...
- hoganshomepage
... chemical composition of the stars. (also temperature and direction the star is moving in relation to the Earth.) How? Set up a spectroscope with different tubes; each gas has different spectras – light patterns. ...
... chemical composition of the stars. (also temperature and direction the star is moving in relation to the Earth.) How? Set up a spectroscope with different tubes; each gas has different spectras – light patterns. ...
3. Stellar Formation and Evolution
... patches of nebulosity known as Herbig-Haro objects. • These jets, in combination with radiation from nearby massive stars, may help to drive away the surrounding cloud in which the star was formed. ...
... patches of nebulosity known as Herbig-Haro objects. • These jets, in combination with radiation from nearby massive stars, may help to drive away the surrounding cloud in which the star was formed. ...
astronomy final exam - Physics and Astronomy
... What is the cosmic background radiation and why is it important? What is Dark Matter and Dark Energy and what is their role in modern cosmology? What is meant by the term “Multiverse?” How would you define Life? What is a curious biochemical feature of life on earth? What does the term “encephaliza ...
... What is the cosmic background radiation and why is it important? What is Dark Matter and Dark Energy and what is their role in modern cosmology? What is meant by the term “Multiverse?” How would you define Life? What is a curious biochemical feature of life on earth? What does the term “encephaliza ...
How many stars are in the Milky Way Galaxy?
... 1: Draw and label diagrams of the Milky Way from top and side views, showing the major components. Indicate the approximate dimensions of the components and note the location of the Sun in each diagram. 2: Describe the galactic distribution of general interstellar material, nebulae, and open and glo ...
... 1: Draw and label diagrams of the Milky Way from top and side views, showing the major components. Indicate the approximate dimensions of the components and note the location of the Sun in each diagram. 2: Describe the galactic distribution of general interstellar material, nebulae, and open and glo ...
Stellar kinematics
Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surrounding part of the Milky Way.In astronomy, it is widely accepted that most stars are born within molecular clouds known as stellar nurseries. The stars formed within such a cloud compose open clusters containing dozens to thousands of members. These clusters dissociate over time. Stars that separate themselves from the cluster's core are designated as members of the cluster's stellar association. If the remnant later drifts through the Milky Way as a coherent assemblage, then it is termed a moving group.