Life Cycles of Stars
... dense stable star about the size of the Earth weighing three tons per cubic centimeter. • It radiates its left-over heat for billions of years. • When its heat is all dispersed, it will be a cold, dark black dwarf essentially a dead star ...
... dense stable star about the size of the Earth weighing three tons per cubic centimeter. • It radiates its left-over heat for billions of years. • When its heat is all dispersed, it will be a cold, dark black dwarf essentially a dead star ...
Direct detection of extrasolar planets through eclipse by their host star
... • atmospheric composition and evolution: formation of atmospheres in three possible ways (Elkins-Tanton et al., 2008): • capture of nebular gases • degassing during accretion • degassing from tectonic activity • low-mass terrestrial planets do not have sufficient gravity to capture nebular gases • i ...
... • atmospheric composition and evolution: formation of atmospheres in three possible ways (Elkins-Tanton et al., 2008): • capture of nebular gases • degassing during accretion • degassing from tectonic activity • low-mass terrestrial planets do not have sufficient gravity to capture nebular gases • i ...
Part B
... Other X-ray sources Lots of energetic interactions of cosmic bodies emit black body radiation peaked in X-rays. e.g. Galactic clusters formed by the merger of individual galaxies (infalling material on collision heated to 108 K). Bullet cluster, the colour representing X-ray emission. ...
... Other X-ray sources Lots of energetic interactions of cosmic bodies emit black body radiation peaked in X-rays. e.g. Galactic clusters formed by the merger of individual galaxies (infalling material on collision heated to 108 K). Bullet cluster, the colour representing X-ray emission. ...
Practice Questions for Final
... Which of the following statements about black holes is NOT true? A. If you fell into a black hole, you would experience time to be running normally as you plunged rapidly across the event horizon. B. A spaceship passing near a 10 solar mass black hole is much more likely to be destroyed than a space ...
... Which of the following statements about black holes is NOT true? A. If you fell into a black hole, you would experience time to be running normally as you plunged rapidly across the event horizon. B. A spaceship passing near a 10 solar mass black hole is much more likely to be destroyed than a space ...
9 The Clearing of Protoplanetary Disks and of the Protosolar Nebula
... in low-density star-forming regions like Taurus. They also find that the disk frequency sharply decreases with cluster age suggesting a disk lifetime (the time for all stars to lose their disks) of 6 Myr (see the dot-dashed line in Fig. 9.2). The sensitivity of the IRAC camera on board the Spitzer S ...
... in low-density star-forming regions like Taurus. They also find that the disk frequency sharply decreases with cluster age suggesting a disk lifetime (the time for all stars to lose their disks) of 6 Myr (see the dot-dashed line in Fig. 9.2). The sensitivity of the IRAC camera on board the Spitzer S ...
From the Everett and Seattle Astronomical
... From the Everett and Seattle Astronomical Societies, this is IT'S OVER YOUR HEAD for the week beginning July 17th, a look at what's up in the sky over Puget Sound. The glory of the summer sky is highlighted by the Milky Way, a giant spiral galaxy, which stretches from the northern horizon in Perseus ...
... From the Everett and Seattle Astronomical Societies, this is IT'S OVER YOUR HEAD for the week beginning July 17th, a look at what's up in the sky over Puget Sound. The glory of the summer sky is highlighted by the Milky Way, a giant spiral galaxy, which stretches from the northern horizon in Perseus ...
Into the sub-mm
... symmetry, or significant turbulent velocity fields within the pre-collapse cores. This theme was expanded by Anja Visser (Mullard Radio Astronomy Observatory) who reported on a pilot study of a SCUBA survey of Lynds Class 6 Clouds. The goals of their unbiased survey is to constrain star formation mo ...
... symmetry, or significant turbulent velocity fields within the pre-collapse cores. This theme was expanded by Anja Visser (Mullard Radio Astronomy Observatory) who reported on a pilot study of a SCUBA survey of Lynds Class 6 Clouds. The goals of their unbiased survey is to constrain star formation mo ...
Universe and Solar System
... Goal: Apply your knowledge of the types of objects and their arrangement in the solar system and universe. Role: You are a member of your 6th grade class, which is helping your school compete for a hosting the President for a nationally televised address on space. Audience: The selection team for th ...
... Goal: Apply your knowledge of the types of objects and their arrangement in the solar system and universe. Role: You are a member of your 6th grade class, which is helping your school compete for a hosting the President for a nationally televised address on space. Audience: The selection team for th ...
Unit 1
... before becoming white dwarfs • Higher mass stars move rapidly off the main sequence and into the giant stages, eventually exploding in a supernova ...
... before becoming white dwarfs • Higher mass stars move rapidly off the main sequence and into the giant stages, eventually exploding in a supernova ...
Planet Searches at Caltech (not a review)
... Detection Limits SIM: 1 as over 5 years (mission lifetime) Keck Interferometer: 20 as over 10 years ...
... Detection Limits SIM: 1 as over 5 years (mission lifetime) Keck Interferometer: 20 as over 10 years ...
High-Mass Star Formation
... star forming cores Aspect ratios consistent with spherical symmetry Median size of 0.32 pc and median virial mass of 920 Msun Virial mass a factor of 2 to 3 larger than dust-determined mass Cumulative mass spectrum G ~ -0.9 similar to IMF of OB ...
... star forming cores Aspect ratios consistent with spherical symmetry Median size of 0.32 pc and median virial mass of 920 Msun Virial mass a factor of 2 to 3 larger than dust-determined mass Cumulative mass spectrum G ~ -0.9 similar to IMF of OB ...
Resource Letter Exo
... been developed for their discovery and characterisation. As of 1 November 2013, just over 1000 exoplanets (in nearly 200 multiple systems) are considered as ‘confirmed’, many through dedicated space observations (and many more expected from the ongoing Kepler satellite analysis). The architecture of ...
... been developed for their discovery and characterisation. As of 1 November 2013, just over 1000 exoplanets (in nearly 200 multiple systems) are considered as ‘confirmed’, many through dedicated space observations (and many more expected from the ongoing Kepler satellite analysis). The architecture of ...
Are There Other Earths Out There? Astronomers` First
... systems, including our own solar system, which is the planetary system that we are most familiar with. Most astronomers expect that life can only originate on a planet, perhaps a planet with size, composition (meaning the materials that it is made of), and temperature similar to that of Earth. Earth ...
... systems, including our own solar system, which is the planetary system that we are most familiar with. Most astronomers expect that life can only originate on a planet, perhaps a planet with size, composition (meaning the materials that it is made of), and temperature similar to that of Earth. Earth ...
Document
... Assuming that the candidates are main sequence stars at the same distance as HAT-P-7. ...
... Assuming that the candidates are main sequence stars at the same distance as HAT-P-7. ...
Chapter10- Other Planetary Systems -pptx
... Jupiter-like planets should not form inside the frost line (at << 5 AU). • The discovery of hot Jupiters has forced reexamination of nebular theory. • Planetary migration or gravitational encounters may explain hot Jupiters. ...
... Jupiter-like planets should not form inside the frost line (at << 5 AU). • The discovery of hot Jupiters has forced reexamination of nebular theory. • Planetary migration or gravitational encounters may explain hot Jupiters. ...
Light of Distant Stars - Glasgow Science Centre
... The Transit of Venus —Jeremiah Horrocks Jeremiah Horrocks was an English astronomer who lived in the 17th century. He wrote about the first observed transit of Venus. Here is his account of the event, as taken from his book Venus in Sole Visa: When the time of the observation approached, I retired ...
... The Transit of Venus —Jeremiah Horrocks Jeremiah Horrocks was an English astronomer who lived in the 17th century. He wrote about the first observed transit of Venus. Here is his account of the event, as taken from his book Venus in Sole Visa: When the time of the observation approached, I retired ...
The origin, life, and death of stars
... The life cycle of a star is determined by its mass More massive stars have greater gravity, and this speeds up the rate of fusion O and B stars can consume all of their core hydrogen in a few million years, while very low mass stars can take hundreds of billions of years. ...
... The life cycle of a star is determined by its mass More massive stars have greater gravity, and this speeds up the rate of fusion O and B stars can consume all of their core hydrogen in a few million years, while very low mass stars can take hundreds of billions of years. ...
Supernovae - Michigan State University
... If a stellar core grows beyond its Chandrasekhar mass limit, it will collapse. Typically this will result in a Supernova explosion at least the outer part of a star is blown off into space ...
... If a stellar core grows beyond its Chandrasekhar mass limit, it will collapse. Typically this will result in a Supernova explosion at least the outer part of a star is blown off into space ...
Stars-Chapter 18
... 1. Begin their lives as clouds of dust and gas called nebulae 2. Gravity may cause the nebula to contract 3. Matter in the gas cloud will begin to condense into a dense region called a protostar 4. The protostar continues to condense, it heats up. Eventually, it reaches a critical mass and nuclear f ...
... 1. Begin their lives as clouds of dust and gas called nebulae 2. Gravity may cause the nebula to contract 3. Matter in the gas cloud will begin to condense into a dense region called a protostar 4. The protostar continues to condense, it heats up. Eventually, it reaches a critical mass and nuclear f ...
