Explore the Galaxy - Museum of Science
... The “Identifying Solar System Patterns” activity is d esigned for sm all grou p s of 3 stu d ents, each of w hom w ill be given a role. Each grou p w ill be given a set of card s w ith d ata for each of the 8 p lanets. First, they w ill observe each p lanet and the solar system as a w hole, record i ...
... The “Identifying Solar System Patterns” activity is d esigned for sm all grou p s of 3 stu d ents, each of w hom w ill be given a role. Each grou p w ill be given a set of card s w ith d ata for each of the 8 p lanets. First, they w ill observe each p lanet and the solar system as a w hole, record i ...
astro-ph/0502206 PDF
... a. Solar magnetic fields may determine the effectiveness of the sorting process. A recent survey [7] found iron-rich surfaces of stars during periods of low magnetic activity, like the Sun’s "Maunder minimum" that accompanied the "Little Ice Age" in Europe. b. Magnetic fields that penetrate the sola ...
... a. Solar magnetic fields may determine the effectiveness of the sorting process. A recent survey [7] found iron-rich surfaces of stars during periods of low magnetic activity, like the Sun’s "Maunder minimum" that accompanied the "Little Ice Age" in Europe. b. Magnetic fields that penetrate the sola ...
3D Motion Analysis from 2D Monochromatic Images of a Solar
... Solar prominences are the massive formations of ionized gas collecting above the Sun’s surface. Even after more than half a century of research, there is not a full understanding of the processes involved in the formation, support, and features of solar prominences. Solar prominences are often assoc ...
... Solar prominences are the massive formations of ionized gas collecting above the Sun’s surface. Even after more than half a century of research, there is not a full understanding of the processes involved in the formation, support, and features of solar prominences. Solar prominences are often assoc ...
A breath of oxygen for the Sun
... extensively studied in the Galaxy and beyond. In such studies, the solar oxygen abundance serves as natural reference. The solar oxygen abundance has repercussions on solar and stellar physics. For instance, oxygen is a major contributor to the opacity in the convective envelope of the Sun. As such, ...
... extensively studied in the Galaxy and beyond. In such studies, the solar oxygen abundance serves as natural reference. The solar oxygen abundance has repercussions on solar and stellar physics. For instance, oxygen is a major contributor to the opacity in the convective envelope of the Sun. As such, ...
Session 1: Structure and dynamics of the solar chromosphere
... chromosphere (cell interior, network, spicules etc.) as well as other features seen at the chromospheric level or having the properties of plasmas at chromospheric temperatures: sunspots chromosphere, plages, chromospheric flares, filaments etc. The relation of such plasmas to other atmospheric laye ...
... chromosphere (cell interior, network, spicules etc.) as well as other features seen at the chromospheric level or having the properties of plasmas at chromospheric temperatures: sunspots chromosphere, plages, chromospheric flares, filaments etc. The relation of such plasmas to other atmospheric laye ...
Presentation - National e
... Unified form of observing catalogues that tie together the heterogeneous data, leaving the data unchanged o Increase interoperability by using “standard” coordinate formats Self describing, with dependencies on ancillary data or proprietary software removed (and with any errors corrected) ...
... Unified form of observing catalogues that tie together the heterogeneous data, leaving the data unchanged o Increase interoperability by using “standard” coordinate formats Self describing, with dependencies on ancillary data or proprietary software removed (and with any errors corrected) ...
Magnetic field and convection in Betelgeuse
... Splitting of spectral lines in a magnetized atmosphere (proportional to field strength, unsensitive to field orientation) Zeeman 1896, Hale 1908 for the Sun, Babcock 1947 for a star ...
... Splitting of spectral lines in a magnetized atmosphere (proportional to field strength, unsensitive to field orientation) Zeeman 1896, Hale 1908 for the Sun, Babcock 1947 for a star ...
Standard 1 Objectives 1 and 2 Workbook
... background radiation, abundance of elements, distance/redshift relation for galaxies). c. Describe the nebular theory of solar system formation and the evidence supporting it (e.g., solar system structure due to gravity, motion and temperature; composition and age of meteorites; observations of newl ...
... background radiation, abundance of elements, distance/redshift relation for galaxies). c. Describe the nebular theory of solar system formation and the evidence supporting it (e.g., solar system structure due to gravity, motion and temperature; composition and age of meteorites; observations of newl ...
Worksheet 4.2 (Answer Key)
... 5. Return to your equation for the magnetic field strength in part 1. We are hoping to estimate the strength of the magnetic field that produced the solar flare and CME from this equation. If you use the amount of energy that the NASA scientists found as the total energy released by the flare in Workshe ...
... 5. Return to your equation for the magnetic field strength in part 1. We are hoping to estimate the strength of the magnetic field that produced the solar flare and CME from this equation. If you use the amount of energy that the NASA scientists found as the total energy released by the flare in Workshe ...
Dynamical Petschek Reconnection
... Magnetic reconnection is a process of changing the connectivity of magnetic field lines, and thought to play a core role in explosive energy conversion of solar flares. According to the SweetParker theory, it is, however, difficult to conduct magnetic reconnection efficiently in highly conductive pl ...
... Magnetic reconnection is a process of changing the connectivity of magnetic field lines, and thought to play a core role in explosive energy conversion of solar flares. According to the SweetParker theory, it is, however, difficult to conduct magnetic reconnection efficiently in highly conductive pl ...
Solar Changes and the Climate
... 106, 212 years and more. A more active sun is brighter due to the dominance of faculae over cooler sunspots with the result that the irradiance emitted by the sun and received by the earth is higher during active solar periods than during quiet solar periods. The amount of change of the solar irradi ...
... 106, 212 years and more. A more active sun is brighter due to the dominance of faculae over cooler sunspots with the result that the irradiance emitted by the sun and received by the earth is higher during active solar periods than during quiet solar periods. The amount of change of the solar irradi ...
Shemansky-Saturn upper atmosphere structure
... • H2 vertical structure at low latitude in 2009 shows top of atmosphere temperature of 450 K. H2 X is non LTE with evidence of non LTE in rotation. Proximal S/C tumble density altitude has been provided to project. On basis of -3.6o latitude observation. • There is disagreement with CIRS hydrocarbon ...
... • H2 vertical structure at low latitude in 2009 shows top of atmosphere temperature of 450 K. H2 X is non LTE with evidence of non LTE in rotation. Proximal S/C tumble density altitude has been provided to project. On basis of -3.6o latitude observation. • There is disagreement with CIRS hydrocarbon ...
Meters • UVB BIOMETER
... max depth). This permanent outdoor UVB Biometer model 501 radiometer solar radiation measurements system is used in weather stations and meterological observatories world wide. Robertson Berger technology along with World Class manufacturing practices and NIST traceable calibrations ensure a high de ...
... max depth). This permanent outdoor UVB Biometer model 501 radiometer solar radiation measurements system is used in weather stations and meterological observatories world wide. Robertson Berger technology along with World Class manufacturing practices and NIST traceable calibrations ensure a high de ...
IMAP (Interstellar MApping Probe)
... Mechanisms responsible for heating and accelerating the solar wind include wave-particle interactions, turbulence-driven dissipation, shocks and compression regions etc. Studying the spatial evolution of the the solar wind at different radial distances in the inner heliosphere is necessary to pinpoi ...
... Mechanisms responsible for heating and accelerating the solar wind include wave-particle interactions, turbulence-driven dissipation, shocks and compression regions etc. Studying the spatial evolution of the the solar wind at different radial distances in the inner heliosphere is necessary to pinpoi ...
Chapter 9 Life and Times on the Main Sequence
... • The Standard Solar Model solution is constructed iteratively. • Starting values for the helium abundance and the mixing length parameter are used to evolve an initial zero-age model to the current age of the Sun. • The model’s luminosity and radius are then compared with observations, the helium a ...
... • The Standard Solar Model solution is constructed iteratively. • Starting values for the helium abundance and the mixing length parameter are used to evolve an initial zero-age model to the current age of the Sun. • The model’s luminosity and radius are then compared with observations, the helium a ...
Conceptual steps towards exploring the fundamental nature of our Sun
... a quasi-periodic oscillation of the SOLAR MAGNETIC FIELD.” (Ossendrijver, Hoyng, 2001, 2502). Solar cycle involves the sunspots, solar irradiance, surface flows, coronal shape, oscillation frequencies, etc. Sun is governed by a subtle agent (the magnetic field) that have a relatively small energy. S ...
... a quasi-periodic oscillation of the SOLAR MAGNETIC FIELD.” (Ossendrijver, Hoyng, 2001, 2502). Solar cycle involves the sunspots, solar irradiance, surface flows, coronal shape, oscillation frequencies, etc. Sun is governed by a subtle agent (the magnetic field) that have a relatively small energy. S ...
Document
... • Formation of the Jovian or gas-giant planets is a little less clear with a weaker consensus among scientists as to a party-line theory. – 1. These planets simply grew large or massive enough that their gravitational fields pulled large masses of gas to their “cores”. – 2. They formed from instabil ...
... • Formation of the Jovian or gas-giant planets is a little less clear with a weaker consensus among scientists as to a party-line theory. – 1. These planets simply grew large or massive enough that their gravitational fields pulled large masses of gas to their “cores”. – 2. They formed from instabil ...
The prominent 1.6-year periodicity in solar motion due to the inner
... structure of the distribution of Ca II flocculae on the whole Sun is repeated regularly after 20–25 rotations of the Sun (the mean period is 1.67 years) during cycle No. 19. He wrote: “It is clear that the fundamental pattern must be simple and must be repeated in time.” Delouis and Mayaud (1975) de ...
... structure of the distribution of Ca II flocculae on the whole Sun is repeated regularly after 20–25 rotations of the Sun (the mean period is 1.67 years) during cycle No. 19. He wrote: “It is clear that the fundamental pattern must be simple and must be repeated in time.” Delouis and Mayaud (1975) de ...
Lecture 9
... What things are made of Sun: Mostly hydrogen (H) and helium (He). Jovian planets: Rich in H and He, low density. Terrestrial planets: Mostly rock and metal, high density. ...
... What things are made of Sun: Mostly hydrogen (H) and helium (He). Jovian planets: Rich in H and He, low density. Terrestrial planets: Mostly rock and metal, high density. ...
Flares and the chromosphere Hugh S. Hudson and Lyndsay Fletcher
... Changes of the coronal magnetic structure imply the transport of energy via Poynting fluxes (Melrose, 1992). The observations indicate that coronal energy dissipates in the chromosphere, and the hard X-ray signature directly implicates weakly relativistic electrons. Thus the magnetic restructuring, ...
... Changes of the coronal magnetic structure imply the transport of energy via Poynting fluxes (Melrose, 1992). The observations indicate that coronal energy dissipates in the chromosphere, and the hard X-ray signature directly implicates weakly relativistic electrons. Thus the magnetic restructuring, ...
Solar Irradiance Reference Spectra (SIRS) for the 2008 Whole
... 2008). (top) The SOHO MDI magnetic field synoptic image. Note that time is backwards (goes right to left) for synoptic images. (middle) and (bottom) The irradiance time series in broad bands. radiation then show enhanced (brighter) irradiance from 30 March (DOY 090) through 4 April (DOY 095), and th ...
... 2008). (top) The SOHO MDI magnetic field synoptic image. Note that time is backwards (goes right to left) for synoptic images. (middle) and (bottom) The irradiance time series in broad bands. radiation then show enhanced (brighter) irradiance from 30 March (DOY 090) through 4 April (DOY 095), and th ...
Naming the 2008-2009 Minimum and Responding to Temperature Declines
... established in Illinois in February 2006; we exist in the form of handouts, posters, web sites and brochures. Feel free to send donations to the address in the poster. Other directors are R. Szostek, Jane Frances Back Struck, AA, my mother, and formerly M. A. Smith, BA. Email us at frenchamericanmus ...
... established in Illinois in February 2006; we exist in the form of handouts, posters, web sites and brochures. Feel free to send donations to the address in the poster. Other directors are R. Szostek, Jane Frances Back Struck, AA, my mother, and formerly M. A. Smith, BA. Email us at frenchamericanmus ...
Numerical models of sunspot formation and fine structure
... promises to resolve many of the challenges that currently restrict the reliable use of helioseismic inversions within and near sunspots. The fine structure of sunspots present at the smallest currently observable scales has puzzled observers for more than a century (see recent reviews [8–12]). In the ...
... promises to resolve many of the challenges that currently restrict the reliable use of helioseismic inversions within and near sunspots. The fine structure of sunspots present at the smallest currently observable scales has puzzled observers for more than a century (see recent reviews [8–12]). In the ...
Lecture 5: Solar System Formation Theories
... accretion rate and gravitational accretion rate small. o By time inner planetesimals were formed and had significant gravitational fields, the nebula had been cleared out by the solar wind. o Then no nebular gas then present to capture an elementary atmosphere. ...
... accretion rate and gravitational accretion rate small. o By time inner planetesimals were formed and had significant gravitational fields, the nebula had been cleared out by the solar wind. o Then no nebular gas then present to capture an elementary atmosphere. ...
A Solar Polar Imager Concept - The National Academies of
... potential SPI, complemented by near-Earth magnetograph observations, would enable us to follow the evolution of active regions for much longer than the half-solar rotation now possible. Figure 4 Closed circulation lines: Possible streamWith only observations from Earth, each lines of meridional flow ...
... potential SPI, complemented by near-Earth magnetograph observations, would enable us to follow the evolution of active regions for much longer than the half-solar rotation now possible. Figure 4 Closed circulation lines: Possible streamWith only observations from Earth, each lines of meridional flow ...
Solar observation
Solar observation is the scientific endeavor of studying the Sun and its behavior and relation to the Earth and the remainder of the Solar System. Deliberate solar observation began thousands of years ago. That initial era of direct observation gave way to telescopes in the 1600s followed by satellites in the twentieth century.