The formation of stars and planets
... Thermal emission of Jupiter and Saturn • Jupiter and Saturn emit more radiation than they receive from the sun. • They are not massive enough for nuclear burning (need at least 13 Mjup) • Kelvin-Helmholz cooling time scale much shorter than current age (at least for Saturn) • Possible solution: – H ...
... Thermal emission of Jupiter and Saturn • Jupiter and Saturn emit more radiation than they receive from the sun. • They are not massive enough for nuclear burning (need at least 13 Mjup) • Kelvin-Helmholz cooling time scale much shorter than current age (at least for Saturn) • Possible solution: – H ...
Lecture102102 - FSU High Energy Physics
... where magnetic field points outward and particles escape ...
... where magnetic field points outward and particles escape ...
Solar System Summary Sheet File
... Comets can be described as being dirty snowballs because they are mainly made up of ice and dust. As the comets approach the Sun they begin to warm up. The surface Ice begins to evaporate. The radiation pressure and solar wind (charged ions/particles) emitted by the Sun forces the water vapour to st ...
... Comets can be described as being dirty snowballs because they are mainly made up of ice and dust. As the comets approach the Sun they begin to warm up. The surface Ice begins to evaporate. The radiation pressure and solar wind (charged ions/particles) emitted by the Sun forces the water vapour to st ...
Chapter 9: Our Star, the Sun
... Some solar flares and some prominences are powerful enough that they can cause a CME. ...
... Some solar flares and some prominences are powerful enough that they can cause a CME. ...
Grade 9 Unit 4: Space
... military) (461-466) c. Identify the risks associated with space exploration and travel. (461-466) Terms to know: Universe Theory light year nebulae ...
... military) (461-466) c. Identify the risks associated with space exploration and travel. (461-466) Terms to know: Universe Theory light year nebulae ...
Estimate the Kelvin-Helmholtz timescale for a 5 solar mass star on
... [A discussion along the following lines earns a few bonus marks: The collapse that occurs is not of the entire star, but only of the helium core. A fair estimate of the mass of this core is about 0.3 x the stellar mass (the Schoenberg-Chandrasekhar limit), and a fair estimate of the size of the core ...
... [A discussion along the following lines earns a few bonus marks: The collapse that occurs is not of the entire star, but only of the helium core. A fair estimate of the mass of this core is about 0.3 x the stellar mass (the Schoenberg-Chandrasekhar limit), and a fair estimate of the size of the core ...
unit a assessment 2 - d
... c. http://www.windows2universe.org/sun/sun.html Colorado Academic Standards in High School Science - This unit has been designed to meet the following: ES 1: The history of the universe, solar system and Earth can be inferred from evidence left from past events. ES 2: As part of the solar system, Ea ...
... c. http://www.windows2universe.org/sun/sun.html Colorado Academic Standards in High School Science - This unit has been designed to meet the following: ES 1: The history of the universe, solar system and Earth can be inferred from evidence left from past events. ES 2: As part of the solar system, Ea ...
Sledging on Mars
... in June focus on data from Voyager 1 between May and September 2012 using the cosmic-ray, low-energy charged particle and magnetometer instruments, with some additional charged-particle data continuing until April this year. The data on the outer reaches of the heliosphere have features in common wi ...
... in June focus on data from Voyager 1 between May and September 2012 using the cosmic-ray, low-energy charged particle and magnetometer instruments, with some additional charged-particle data continuing until April this year. The data on the outer reaches of the heliosphere have features in common wi ...
Comet tails18 Feb • Mike Velbel,
... Solar wind & comets’ ion tail • Biermann (early 1950s): The sun’s ultraviolet radiation ionized gas from the comet. Suppose there is a stream of charged particles from the sun. The collisions with the stream of particles accelerate the ions away from the sun. • Chapman (1950s): temperature of su ...
... Solar wind & comets’ ion tail • Biermann (early 1950s): The sun’s ultraviolet radiation ionized gas from the comet. Suppose there is a stream of charged particles from the sun. The collisions with the stream of particles accelerate the ions away from the sun. • Chapman (1950s): temperature of su ...
to view SGN5-3-13 - Block Island School
... the lengths of objects in yards, feet, inches, meters, and centimeters. The main objective was for the children to increase their mathematical proficiency by making use of the structure of objects and measuring tools. First they matched the objects to the most appropriate and efficient tools and the ...
... the lengths of objects in yards, feet, inches, meters, and centimeters. The main objective was for the children to increase their mathematical proficiency by making use of the structure of objects and measuring tools. First they matched the objects to the most appropriate and efficient tools and the ...
Space Physics Handout 2 : The Earth`s magnetosphere and
... The ionosphere extends to rather high altitudes and at low and mid-latitudes gradually merges into the plasmasphere which was mentioned above. At high latitudes plasma sheet electrons can precipitate along magnetic field lines down to ionospheric altitudes, where they collide with and ionise neutral ...
... The ionosphere extends to rather high altitudes and at low and mid-latitudes gradually merges into the plasmasphere which was mentioned above. At high latitudes plasma sheet electrons can precipitate along magnetic field lines down to ionospheric altitudes, where they collide with and ionise neutral ...
Solar System
... • Comets may give clues to the origin of the solar system. – Comets are composed of dust and of ice made from methane, ammonia, carbon dioxide, and water. – Because of their composition, comets are sometimes called dirty snowballs. • Comets have long tails and icy centers. – Some comets have two tai ...
... • Comets may give clues to the origin of the solar system. – Comets are composed of dust and of ice made from methane, ammonia, carbon dioxide, and water. – Because of their composition, comets are sometimes called dirty snowballs. • Comets have long tails and icy centers. – Some comets have two tai ...
Science 9 Unit 5: Space Name
... in diameter. Its temperature is about 15 million degrees Celsius. 600t of hydrogen are converted, by nuclear fusion, into helium per second. This is the energy released from the Sun. The Sun emits charged particles in all directions. This solar wind bombards the Earth at 400km/s, but the magnetic fi ...
... in diameter. Its temperature is about 15 million degrees Celsius. 600t of hydrogen are converted, by nuclear fusion, into helium per second. This is the energy released from the Sun. The Sun emits charged particles in all directions. This solar wind bombards the Earth at 400km/s, but the magnetic fi ...
Advanced Composition Explorer
Advanced Composition Explorer (ACE) is a NASA Explorers program Solar and space exploration mission to study matter comprising energetic particles from the solar wind, the interplanetary medium, and other sources. Real-time data from ACE is used by the NOAA Space Weather Prediction Center to improve forecasts and warnings of solar storms. The ACE robotic spacecraft was launched August 25, 1997 and entered a Lissajous orbit close to the L1 Lagrangian point (which lies between the Sun and the Earth at a distance of some 1.5 million km from the latter) on December 12, 1997. The spacecraft is currently operating at that orbit. Because ACE is in a non-Keplerian orbit, and has regular station-keeping maneuvers, the orbital parameters at right are only approximate. The spacecraft is still in generally good condition in 2015, and is projected to have enough fuel to maintain its orbit until 2024. NASA Goddard Space Flight Center managed the development and integration of the ACE spacecraft.