Presentation - Harvard-Smithsonian Center for Astrophysics
... plus UV wavelengths define 1D energy levels in Mg VII ...
... plus UV wavelengths define 1D energy levels in Mg VII ...
Document
... _____ 15. Where do groups of sunspots initially appear? a. at the sun’s poles b. at the sun’s equator c. all across the sun’s surface d. about midway between the sun’s equator and poles _____ 16. Over the next few years after they appear, the number of sunspots a. increases until they reach a peak o ...
... _____ 15. Where do groups of sunspots initially appear? a. at the sun’s poles b. at the sun’s equator c. all across the sun’s surface d. about midway between the sun’s equator and poles _____ 16. Over the next few years after they appear, the number of sunspots a. increases until they reach a peak o ...
Extreme Magnetic Storms
... nothing, he would not have it supposed that he even leans towards hastily connecting them. “One swallow does not make a summer”. “ Carrington gave us gave us information to determine the average speed of the CME. It was not “politically correct” to relate solar and geomagnetic phenomena at the time ...
... nothing, he would not have it supposed that he even leans towards hastily connecting them. “One swallow does not make a summer”. “ Carrington gave us gave us information to determine the average speed of the CME. It was not “politically correct” to relate solar and geomagnetic phenomena at the time ...
Our Star - the Sun
... Distances to the nearer stars can be determined by parallax, the apparent shift of a star against the background stars observed as the Earth moves along its orbit Parallax measurements made from orbit, above the blurring effects of the atmosphere, are much more accurate than those made with Earth-ba ...
... Distances to the nearer stars can be determined by parallax, the apparent shift of a star against the background stars observed as the Earth moves along its orbit Parallax measurements made from orbit, above the blurring effects of the atmosphere, are much more accurate than those made with Earth-ba ...
The sun and the solar corona
... Helioseismology and the Sun’s interior How do we know about the Sun’s interior? In fact, solar (and consequently) stellar models have been established by purely theoretical considerations, based on the measured energy output (luminosity), radius and mass, using of course all the applicable laws of p ...
... Helioseismology and the Sun’s interior How do we know about the Sun’s interior? In fact, solar (and consequently) stellar models have been established by purely theoretical considerations, based on the measured energy output (luminosity), radius and mass, using of course all the applicable laws of p ...
Study Guide - James E. Neff
... conditions are required to begin and to sustain fusion reactions? All stars are in a critical balance between the forces trying to blow them apart and gravity trying to hold it all together. The star adjusts itself (puffs up or contracts) until it achieves this balance (called "hydrostatic equilibri ...
... conditions are required to begin and to sustain fusion reactions? All stars are in a critical balance between the forces trying to blow them apart and gravity trying to hold it all together. The star adjusts itself (puffs up or contracts) until it achieves this balance (called "hydrostatic equilibri ...
Asteroseismology and the Solar
... down to 12-14 magnitude from 1-year seismic data Christensen-Dalsgaard et al. (2007) ...
... down to 12-14 magnitude from 1-year seismic data Christensen-Dalsgaard et al. (2007) ...
Weekly Class Newsletter
... solar system, the sun is a star, the sun is the hottest thing in the world, and sun is a ball of fire etc. were shared by students. The Central Idea and key concepts were also discussed. Learners also learned about the names of the planets in order, from the closest to the sun to the farthest from t ...
... solar system, the sun is a star, the sun is the hottest thing in the world, and sun is a ball of fire etc. were shared by students. The Central Idea and key concepts were also discussed. Learners also learned about the names of the planets in order, from the closest to the sun to the farthest from t ...
File - Mr. Catt`s Class
... – This cools the region above the plug, which then becomes denser and plunges downward at high speeds, drawing the surrounding plasma and field toward the center of the sunspot. – This increases the strength of the sunspot and this cycle repeats for as long as the field is strong enough to behave li ...
... – This cools the region above the plug, which then becomes denser and plunges downward at high speeds, drawing the surrounding plasma and field toward the center of the sunspot. – This increases the strength of the sunspot and this cycle repeats for as long as the field is strong enough to behave li ...
Unit 12 Guide: Concepts of Earth Science Stars, Galaxies, and the
... 5. What is the difference between absolute and apparent magnitude? What is luminosity? 6. What are the three types of spectra? How can scientists use absorption spectra to determine the elements that compose a star? 7. What are stars made of and how do they produce their light? What is the differenc ...
... 5. What is the difference between absolute and apparent magnitude? What is luminosity? 6. What are the three types of spectra? How can scientists use absorption spectra to determine the elements that compose a star? 7. What are stars made of and how do they produce their light? What is the differenc ...
Hmwk2012 - science9atsouthcarletonhs
... Complete the following work in a separate homework folder. Organize the work by section. Clearly underline titles and defined words. You are responsible for the vocabulary in each section. However, you only need to define those terms not already completed in class. With the exception of starred (*) ...
... Complete the following work in a separate homework folder. Organize the work by section. Clearly underline titles and defined words. You are responsible for the vocabulary in each section. However, you only need to define those terms not already completed in class. With the exception of starred (*) ...
Montage of Jupiter and the Galilean satellites
... Credit: SOHO - EIT Consortium, ESA, NASA Last year, our Sun went though Solar Maximum, the time in its 11-year cycle where the most sunspots and explosive activities occur. Sunspots, the Solar Cycle, and solar prominences are all caused by the Sun's changing magnetic field. Pictured above is a solar ...
... Credit: SOHO - EIT Consortium, ESA, NASA Last year, our Sun went though Solar Maximum, the time in its 11-year cycle where the most sunspots and explosive activities occur. Sunspots, the Solar Cycle, and solar prominences are all caused by the Sun's changing magnetic field. Pictured above is a solar ...
Fine structure of the interplanetary shocks observed by BMSW
... Interplanetary (IP) shocks are one of the main factors influencing the space weather. The fine structure of the front of collisionless shock has been investigated for planetary shocks from magnetic field measurements whereas IP shocks are less often studied. BMSW[1] plasma spectrometer onboard the S ...
... Interplanetary (IP) shocks are one of the main factors influencing the space weather. The fine structure of the front of collisionless shock has been investigated for planetary shocks from magnetic field measurements whereas IP shocks are less often studied. BMSW[1] plasma spectrometer onboard the S ...
Lesson 7 - Blackbody Radiation and Luminosity
... Thought Experiment. Consider a hot metal rod and a burning match at the same temp. Which gives off more energy??? We must consider the amount of energy emitted per surface area. ENERGY FLUX ...
... Thought Experiment. Consider a hot metal rod and a burning match at the same temp. Which gives off more energy??? We must consider the amount of energy emitted per surface area. ENERGY FLUX ...
Solar System Information
... •Its mass makes up 99% of the solar system’s mass •It has an atmosphere and an interior •Diameter of the Sun is the same as 10 Jupiters lined up side-by-side •Sun is made of hydrogen and helium •The Sun gets its power from nuclear fusion – (the fusing or joining of two atoms) ...
... •Its mass makes up 99% of the solar system’s mass •It has an atmosphere and an interior •Diameter of the Sun is the same as 10 Jupiters lined up side-by-side •Sun is made of hydrogen and helium •The Sun gets its power from nuclear fusion – (the fusing or joining of two atoms) ...
Pollux: a stable weak dipolar magnetic field but
... i.e. more than for two periods of the RV variations. The longitudinal magnetic field is found to vary with a sinusoidal behaviour of a period close to that of the RV and with a small shift in phase. We then made a Zeeman Doppler Imaging investigation from the Stokes V and Stokes I LSD (least squares ...
... i.e. more than for two periods of the RV variations. The longitudinal magnetic field is found to vary with a sinusoidal behaviour of a period close to that of the RV and with a small shift in phase. We then made a Zeeman Doppler Imaging investigation from the Stokes V and Stokes I LSD (least squares ...
Approximate Wavelength
... wavelength Do you you remember themerely average temperature of our sun? What ceramic evolved stovetops topeak seeobject in the all as seem visible spectrum? glow as they heat up? You4500K will emitted by an the to temperature increases from would its wavelength ...
... wavelength Do you you remember themerely average temperature of our sun? What ceramic evolved stovetops topeak seeobject in the all as seem visible spectrum? glow as they heat up? You4500K will emitted by an the to temperature increases from would its wavelength ...
1. Introduction - The National Academies of Sciences, Engineering
... current helicity inside an active region varies with flares. Highly uniform sequences of highresolution vector magnetograms of an active region before and after a flare are required to address this important issue. Coronal mass ejections (CMEs) originate in large-scale magnetic arcades known as hel ...
... current helicity inside an active region varies with flares. Highly uniform sequences of highresolution vector magnetograms of an active region before and after a flare are required to address this important issue. Coronal mass ejections (CMEs) originate in large-scale magnetic arcades known as hel ...
Solar wind - schoolphysics
... First of all: MeV stands for a million electron volts (eV). 1 eV is the energy gained by an electron when it is accelerated through a potential difference of 1 volt. This is equal to = 1.6x10-19 J and so 1 Mev = 1.6x10-13 J. Now to the problem of the solar wind. The solar wind, or emission of partic ...
... First of all: MeV stands for a million electron volts (eV). 1 eV is the energy gained by an electron when it is accelerated through a potential difference of 1 volt. This is equal to = 1.6x10-19 J and so 1 Mev = 1.6x10-13 J. Now to the problem of the solar wind. The solar wind, or emission of partic ...
Lecture 13. Black Holes - Politechnika Wrocławska
... Photosphere is the visible surface of the Sun. It consists of gas and is far less dense than air over the Earth’s oceans. ...
... Photosphere is the visible surface of the Sun. It consists of gas and is far less dense than air over the Earth’s oceans. ...
Chapter 11
... 1. Three possible methods by which energy can be transferred from the center of the Sun outward: (a) Conduction: The transfer of energy in a solid by collisions between atoms and/or molecules. This is not a significant factor in transporting energy within the Sun. (b) Convection: the transfer of ene ...
... 1. Three possible methods by which energy can be transferred from the center of the Sun outward: (a) Conduction: The transfer of energy in a solid by collisions between atoms and/or molecules. This is not a significant factor in transporting energy within the Sun. (b) Convection: the transfer of ene ...
Solar Presentation
... 100,000 km in length. Earth could easily fit between its outstretched “arms.” Dark regions in this TRACE image have temperatures less than 20,000 K; the brightest regions are about 1 million K. The ionized gas follows the solar magnetic field lines away from the Sun. Most of it will subsequently coo ...
... 100,000 km in length. Earth could easily fit between its outstretched “arms.” Dark regions in this TRACE image have temperatures less than 20,000 K; the brightest regions are about 1 million K. The ionized gas follows the solar magnetic field lines away from the Sun. Most of it will subsequently coo ...
Sun - International Year of Astronomy 2009
... During this time we see the Sun going from a calm star, to a very turbulent active star, and switching the polarity of the ...
... During this time we see the Sun going from a calm star, to a very turbulent active star, and switching the polarity of the ...
Corona
A corona (Latin, 'crown') is an aura of plasma that surrounds the sun and other celestial bodies. The Sun's corona extends millions of kilometres into space and is most easily seen during a total solar eclipse, but it is also observable with a coronagraph. The word ""corona"" is a Latin word meaning ""crown"", from the Ancient Greek κορώνη (korōnē, “garland, wreath”).The high temperature of the Sun's corona gives it unusual spectral features, which led some in the 19th century to suggest that it contained a previously unknown element, ""coronium"". Instead, these spectral features have since been explained by highly ionized iron (Fe-XIV). Bengt Edlén, following the work of Grotrian (1939), first identified the coronal lines in 1940 (observed since 1869) as transitions from low-lying metastable levels of the ground configuration of highly ionised metals (the green Fe-XIV line at 5303 Å, but also the red line Fe-X at 6374 Å). These high stages of ionisation indicate a plasma temperature in excess of 1,000,000 kelvin, much hotter than the surface of the sun.Light from the corona comes from three primary sources, which are called by different names although all of them share the same volume of space. The K-corona (K for kontinuierlich, ""continuous"" in German) is created by sunlight scattering off free electrons; Doppler broadening of the reflected photospheric absorption lines completely obscures them, giving the spectral appearance of a continuum with no absorption lines. The F-corona (F for Fraunhofer) is created by sunlight bouncing off dust particles, and is observable because its light contains the Fraunhofer absorption lines that are seen in raw sunlight; the F-corona extends to very high elongation angles from the Sun, where it is called the zodiacal light. The E-corona (E for emission) is due to spectral emission lines produced by ions that are present in the coronal plasma; it may be observed in broad or forbidden or hot spectral emission lines and is the main source of information about the corona's composition.