payload_ssr
... of which less than 50 kg was allocated to the science payload. At Pluto’s large heliocentric distance, the use of solar photovoltaic cells was not an option, so the New Horizons mission relies on a radioisotope thermoelectric generator (RTG) for all of its power needs. The mission requirement on the ...
... of which less than 50 kg was allocated to the science payload. At Pluto’s large heliocentric distance, the use of solar photovoltaic cells was not an option, so the New Horizons mission relies on a radioisotope thermoelectric generator (RTG) for all of its power needs. The mission requirement on the ...
overview of the new horizons science payload
... of which less than 50 kg was allocated to the science payload. At Pluto’s large heliocentric distance, the use of solar photovoltaic cells was not an option, so the New Horizons mission relies on a radioisotope thermoelectric generator (RTG) for all of its power needs. The mission requirement on the ...
... of which less than 50 kg was allocated to the science payload. At Pluto’s large heliocentric distance, the use of solar photovoltaic cells was not an option, so the New Horizons mission relies on a radioisotope thermoelectric generator (RTG) for all of its power needs. The mission requirement on the ...
Winds from accretion disks driven by the radiation and
... can be essential in producing magnetohydrodynamical (MHD) winds from disks where the thermal energy is too low to launch winds or where the field lines make an angle of < 30o with respect to the normal to the disk midplane. In the latter case the wind will be less decollimated near its base by the c ...
... can be essential in producing magnetohydrodynamical (MHD) winds from disks where the thermal energy is too low to launch winds or where the field lines make an angle of < 30o with respect to the normal to the disk midplane. In the latter case the wind will be less decollimated near its base by the c ...
Magnetic quenching of turbulent diffusivity - Andrés Muñoz
... which we plot in Figure 1 (solid black line) and show how it compares to commonly used diffusivity profiles. 3. THE PROBLEM AND A POSSIBLE SOLUTION It is evident that there is a major discrepancy between the theoretical estimate and the typical values used inside the convection zone (around two orde ...
... which we plot in Figure 1 (solid black line) and show how it compares to commonly used diffusivity profiles. 3. THE PROBLEM AND A POSSIBLE SOLUTION It is evident that there is a major discrepancy between the theoretical estimate and the typical values used inside the convection zone (around two orde ...
The outer solar system:
... This theory, however, has problems, mostly because Triton’s large mass make capture difficult. In an extra twist, recent work suggests that Triton was originally part of a binary, similar to Pluto-Charon, which strayed too close to Neptune. During the interaction, as the binary was ripped apart, on ...
... This theory, however, has problems, mostly because Triton’s large mass make capture difficult. In an extra twist, recent work suggests that Triton was originally part of a binary, similar to Pluto-Charon, which strayed too close to Neptune. During the interaction, as the binary was ripped apart, on ...
Global Properties of Solar Flares
... The idea that a solar disturbance could affect a terrestrial instrument such as a compass seemed highly improbable at the time, but it turned out to be indeed a correct association, so this first observed flare served to suggest immediately the capability for a such a solar event to have widely felt ...
... The idea that a solar disturbance could affect a terrestrial instrument such as a compass seemed highly improbable at the time, but it turned out to be indeed a correct association, so this first observed flare served to suggest immediately the capability for a such a solar event to have widely felt ...
The albedo-color diversity of transneptunian objects
... http://reference.wolfram.com/mathematica/tutorial/PartitioningDataIntoClusters.html ...
... http://reference.wolfram.com/mathematica/tutorial/PartitioningDataIntoClusters.html ...
ASTROPHYSICAL PARAMETERS OF LS 2883 AND IMPLICATIONS FOR THE Y egueruela ,
... Only a few binary systems with compact objects display TeV emission. The physical properties of the companion stars represent basic input for understanding the physical mechanisms behind the particle acceleration, emission, and absorption processes in these so-called gamma-ray binaries. Here we pres ...
... Only a few binary systems with compact objects display TeV emission. The physical properties of the companion stars represent basic input for understanding the physical mechanisms behind the particle acceleration, emission, and absorption processes in these so-called gamma-ray binaries. Here we pres ...
Neptune is the eighth planet from the Sun and the fourth largest (by
... between the English and French (though not, apparently between Adams and Le Verrier personally) over priority and the right to name the new planet; they are now jointly credited with Neptune's discovery. Subsequent observations have shown that the orbits calculated by Adams and Le Verrier diverge fr ...
... between the English and French (though not, apparently between Adams and Le Verrier personally) over priority and the right to name the new planet; they are now jointly credited with Neptune's discovery. Subsequent observations have shown that the orbits calculated by Adams and Le Verrier diverge fr ...
stacy e. palen - Department of Physics
... rocky, and so have a density of about 3,000 kg/m3 , how large a planet could be formed from them? The total mass of all the asteroids is just the product of the number of asteroids and their individual mass: M ¼nm M ¼ 7;000 1017 kg M ¼ 7 1020 kg The volume of the planet that could be formed is ...
... rocky, and so have a density of about 3,000 kg/m3 , how large a planet could be formed from them? The total mass of all the asteroids is just the product of the number of asteroids and their individual mass: M ¼nm M ¼ 7;000 1017 kg M ¼ 7 1020 kg The volume of the planet that could be formed is ...
Embedded star clusters and the formation of the Oort Cloud
... A., Levison, H.F., 2005. Nature 435, 459–461]), passing stars and tidal force associated with the gas and stars of an embedded star cluster. The cluster was taken to be a Plummer model with 200–400 stars, with a range of initial central densities. The Sun’s orbit was integrated in the cluster potent ...
... A., Levison, H.F., 2005. Nature 435, 459–461]), passing stars and tidal force associated with the gas and stars of an embedded star cluster. The cluster was taken to be a Plummer model with 200–400 stars, with a range of initial central densities. The Sun’s orbit was integrated in the cluster potent ...
Family Space Day Overview - Comets
... Walk Through Comets Comets are ‘leftovers’ from the formation of our solar system around 4.6 billion years ago. They have been called “dirty snowballs.” They are small celestial objects, made of ice, gas, dust, and a small amount of organic material, that orbit our Sun. There are about 1000 known c ...
... Walk Through Comets Comets are ‘leftovers’ from the formation of our solar system around 4.6 billion years ago. They have been called “dirty snowballs.” They are small celestial objects, made of ice, gas, dust, and a small amount of organic material, that orbit our Sun. There are about 1000 known c ...
Geometry of light and shadows
... centers are on the big circles? Then, on some of the motion on the small circles, they'd be moving faster backwards than the centers of these circles move forward. For those of us on Earth, we'd see the planets move backwards. Those small circles are called "epicycles," and the big circles are calle ...
... centers are on the big circles? Then, on some of the motion on the small circles, they'd be moving faster backwards than the centers of these circles move forward. For those of us on Earth, we'd see the planets move backwards. Those small circles are called "epicycles," and the big circles are calle ...
EUV and X-ray Spectroscopy of the Active Sun
... This thesis strives to improve our understanding of solar activity, specifically the behaviour of solar flares and coronal mass ejections. An investigation into the hydrodynamic evolution of a confined solar flare was carried out using RHESSI, CDS, GOES and TRACE. Evidence for pre-flare heating, exp ...
... This thesis strives to improve our understanding of solar activity, specifically the behaviour of solar flares and coronal mass ejections. An investigation into the hydrodynamic evolution of a confined solar flare was carried out using RHESSI, CDS, GOES and TRACE. Evidence for pre-flare heating, exp ...
Contrast analysis between the trajectory of the planetary system and
... system’s barycenter, the Sun’s barycenter, and the solar system’s barycenter overlap at the moment. In theory, the maximum value of the planet juncture index is 7.520204 when the planets lie on the same side of the Sun. In reality, the ...
... system’s barycenter, the Sun’s barycenter, and the solar system’s barycenter overlap at the moment. In theory, the maximum value of the planet juncture index is 7.520204 when the planets lie on the same side of the Sun. In reality, the ...
Light perturbation from stellar non radial oscillations: an application
... for the outer ~3% (~30”) of the disk because the total optical depth along the line of sight drops quickly below 1. ...
... for the outer ~3% (~30”) of the disk because the total optical depth along the line of sight drops quickly below 1. ...
Clumpy wind accretion in supergiant neutron star high mass X
... (mostly 2D and pseudo 3D), however, were so far unable to account for the thermal structure of the wind and thus they could not make any clear prediction on the intensity of the produced X-ray radiation to be compared with observations of isolated OB supergiants and massive stars in SGXBs (see, e.g. ...
... (mostly 2D and pseudo 3D), however, were so far unable to account for the thermal structure of the wind and thus they could not make any clear prediction on the intensity of the produced X-ray radiation to be compared with observations of isolated OB supergiants and massive stars in SGXBs (see, e.g. ...
Introduction to Comets - Mr. Hill`s Science Website
... Swift-Tuttle moves closer to the Sun every 120 years, it leaves behind a trail of dust debris that provides the ingredients for a spectacular fireworks display seen in July and August. As Earth passes through the remnants of this dust tail, we can see on a clear night the Perseid meteor shower. Come ...
... Swift-Tuttle moves closer to the Sun every 120 years, it leaves behind a trail of dust debris that provides the ingredients for a spectacular fireworks display seen in July and August. As Earth passes through the remnants of this dust tail, we can see on a clear night the Perseid meteor shower. Come ...
Chandra HETGS Multiphase Spectroscopy Of The Young
... Feldmeier et al. 1997b), in which shocks form from interactions between wind streams that are flowing radially away from the star at moderately different speeds. What makes the MCWS shocks more efficient than instabilitydriven wind shocks is the velocity contrast experienced in the shocks. The magne ...
... Feldmeier et al. 1997b), in which shocks form from interactions between wind streams that are flowing radially away from the star at moderately different speeds. What makes the MCWS shocks more efficient than instabilitydriven wind shocks is the velocity contrast experienced in the shocks. The magne ...
Potential for Life on the Terrestrial Planets
... fluxes result in higher exospheric temperatures and more expanded thermosphereexosphere environments and, hence, suffer stronger atmospheric erosion, which may result in the total loss of several hundred bars even if an exoplanet is protected by a “magnetic shield” with its boundary located at one E ...
... fluxes result in higher exospheric temperatures and more expanded thermosphereexosphere environments and, hence, suffer stronger atmospheric erosion, which may result in the total loss of several hundred bars even if an exoplanet is protected by a “magnetic shield” with its boundary located at one E ...
Can a Fast-Mode EUV Wave Generate a Stationary Front?
... waves” discovered by Thompson et al. (1998) were suggested to be generated by the successive stretching of the closed magnetic field lines pushed by an erupting flux rope below. In particular, with magnetohydrodynamic (MHD) numerical simulations, Chen, Fang, and Shibata (2005b) confirmed that “EIT w ...
... waves” discovered by Thompson et al. (1998) were suggested to be generated by the successive stretching of the closed magnetic field lines pushed by an erupting flux rope below. In particular, with magnetohydrodynamic (MHD) numerical simulations, Chen, Fang, and Shibata (2005b) confirmed that “EIT w ...
SIMULATION OF QUIET-SUN WAVES IN THE Ca ii INFRARED TRIPLET
... Doppler shift analysis and obscures the true oscillatory signal. The magnetic flux in the quiet Sun is very small (3 Mx cm2 in the internetwork; Lites 2002), so useful observations need a high signal-to-noise ratio (S/ N 103 ), which, when combined with the high time cadence required to resolve ...
... Doppler shift analysis and obscures the true oscillatory signal. The magnetic flux in the quiet Sun is very small (3 Mx cm2 in the internetwork; Lites 2002), so useful observations need a high signal-to-noise ratio (S/ N 103 ), which, when combined with the high time cadence required to resolve ...
Our Solar System
... could have melted it and allowed it to differentiate into a dense metallic core and a lower density crust. a. radioactive decay b. the sun c. volcanic eruptions d. tidal forces e. impacts of small meteorites The condensation sequence suggests that __________ should condense closest to the sun. a. Jo ...
... could have melted it and allowed it to differentiate into a dense metallic core and a lower density crust. a. radioactive decay b. the sun c. volcanic eruptions d. tidal forces e. impacts of small meteorites The condensation sequence suggests that __________ should condense closest to the sun. a. Jo ...
STELLAR ABLATION OF PLANETARY ATMOSPHERES
... plasma, initially producing what we term as ‘‘upflow’’ against gravitational confinement. With sufficient energy, upflow becomes ‘‘outflow,’’ escaping gravity, but the plasma is still trapped in the magnetosphere. When geospheric plasma finds its way to the outer magnetospheric boundary and escapes ...
... plasma, initially producing what we term as ‘‘upflow’’ against gravitational confinement. With sufficient energy, upflow becomes ‘‘outflow,’’ escaping gravity, but the plasma is still trapped in the magnetosphere. When geospheric plasma finds its way to the outer magnetospheric boundary and escapes ...
Heliosphere
The heliosphere is the bubble-like region of space dominated by the Sun, which extends far beyond the orbit of Pluto. Plasma ""blown"" out from the Sun, known as the solar wind, creates and maintains this bubble against the outside pressure of the interstellar medium, the hydrogen and helium gas that permeates the Milky Way Galaxy. The solar wind flows outward from the Sun until encountering the termination shock, where motion slows abruptly. The Voyager spacecraft have actively explored the outer reaches of the heliosphere, passing through the shock and entering the heliosheath, a transitional region which is in turn bounded by the outermost edge of the heliosphere, called the heliopause. The overall shape of the heliosphere is controlled by the interstellar medium, through which it is traveling, as well as the Sun, and does not appear to be perfectly spherical. The limited data available and unexplored nature of these structures have resulted in many theories.On September 12, 2013, NASA announced that Voyager 1 had exited the heliosphere on August 25, 2012, when it measured a sudden increase in plasma density of about forty times. Because the heliopause marks one boundary between the Sun's solar wind and the rest of the galaxy, a spacecraft such as Voyager 1 which has departed the heliosphere can be said to have reached interstellar space.