Answer Key
... the Figure It Out but if needed, these open ended questions can be printed from the answer key, for distribution to students. Suggested Strategies for Using the Assessments: 1. The printed assessment can be used as both a pretest and as a posttest to measure how much learning has occurred fol ...
... the Figure It Out but if needed, these open ended questions can be printed from the answer key, for distribution to students. Suggested Strategies for Using the Assessments: 1. The printed assessment can be used as both a pretest and as a posttest to measure how much learning has occurred fol ...
Hubble Space Telescope Imaging of Post
... massive systems showing activity (Heckman et al. 2004). Thus, as we move from quasar to Seyfert luminosities, fueling rates and triggering mechanisms may differ (Hopkins & Hernquist 2009). For example, bars in spiral galaxies may be sufficient to fuel such nuclear activity. For this reason, and sinc ...
... massive systems showing activity (Heckman et al. 2004). Thus, as we move from quasar to Seyfert luminosities, fueling rates and triggering mechanisms may differ (Hopkins & Hernquist 2009). For example, bars in spiral galaxies may be sufficient to fuel such nuclear activity. For this reason, and sinc ...
Aalborg Universitet Spacecraft Attitude Determination with Earth Albedo Corrected Sun Sensor Measurements
... attitude determination. Since the recent development of the CubeSat pico-satellite concept, numerous universities have initiated student satellite projects. The minimal size of the CubeSats limits the hardware configuration, which, for an attitude determination point-of-view, only allows simple atti ...
... attitude determination. Since the recent development of the CubeSat pico-satellite concept, numerous universities have initiated student satellite projects. The minimal size of the CubeSats limits the hardware configuration, which, for an attitude determination point-of-view, only allows simple atti ...
Combined Earth-/Star-Sensor for Attitude and Orbit Determination of
... The subject of this work is a sensor for autonomous attitude and orbit determination of satellites, based on active pixel technology as it has been proposed in the patent on a „Combined Earth-/ Star-Sensor System and Method for Determining the Orbit and Position of Spacecraft“ developed at Daimler-C ...
... The subject of this work is a sensor for autonomous attitude and orbit determination of satellites, based on active pixel technology as it has been proposed in the patent on a „Combined Earth-/ Star-Sensor System and Method for Determining the Orbit and Position of Spacecraft“ developed at Daimler-C ...
Extrasolar Kuiper Belt Dust Disks
... 100× the level of dust in our solar system, and at AB-like distances (1–10 AU) that are 1000× our zodiacal emission (Bryden et al., 2006). However, spectroscopy observations with Spitzer/IRS are better suited to search for hot dust. Preliminary results by Beichman et al. (2006a) indicated that indee ...
... 100× the level of dust in our solar system, and at AB-like distances (1–10 AU) that are 1000× our zodiacal emission (Bryden et al., 2006). However, spectroscopy observations with Spitzer/IRS are better suited to search for hot dust. Preliminary results by Beichman et al. (2006a) indicated that indee ...
Venus
... Very similar to Earth in mass, size, composition, density, but no magnetic field Core solid? Solar wind interacts directly with the atmosphere, forming a bow shock and a long ion tail. CO2 produced during outgassing remained in atmosphere (on Earth: dissolved in water). Any water present on the ...
... Very similar to Earth in mass, size, composition, density, but no magnetic field Core solid? Solar wind interacts directly with the atmosphere, forming a bow shock and a long ion tail. CO2 produced during outgassing remained in atmosphere (on Earth: dissolved in water). Any water present on the ...
Maximizing the ExoEarth Candidate Yield from a Future Direct
... relatively small, and in the case of single-visit studies, as discussed below, the yield scales weakly with mission lifetime. Therefore, spectral characterization time should not greatly impact the single-visit yield estimates from this study. Finally, we observe each star only once and ignore revis ...
... relatively small, and in the case of single-visit studies, as discussed below, the yield scales weakly with mission lifetime. Therefore, spectral characterization time should not greatly impact the single-visit yield estimates from this study. Finally, we observe each star only once and ignore revis ...
A Zoo of Galaxies - Portsmouth Research Portal
... much more detail that I intend to (for example Trimble 1995), and as is well known, both astronomers had it partly right. While Curtis held the opinion that the spiral nebula represented external galaxies, his measure of the size of our Milky Way was much too small (only 10 kpc across) and he still ...
... much more detail that I intend to (for example Trimble 1995), and as is well known, both astronomers had it partly right. While Curtis held the opinion that the spiral nebula represented external galaxies, his measure of the size of our Milky Way was much too small (only 10 kpc across) and he still ...
A new method to determine the mean density of massive Solar
... More than 10 natural satellites at a distance from their primaries, ranged from 3 to 100 relative astronomical units, have the downward trend in the mean density as the semimajor axis of the orbit grows (Fig. 2). Pluto’s moon Charon, shown here as a terrestrial planet satellite, above 10,000 rAU apa ...
... More than 10 natural satellites at a distance from their primaries, ranged from 3 to 100 relative astronomical units, have the downward trend in the mean density as the semimajor axis of the orbit grows (Fig. 2). Pluto’s moon Charon, shown here as a terrestrial planet satellite, above 10,000 rAU apa ...
Stellar evolution - Statistical Physics Group
... There is one important qualification to the discussion above. Almost all of the stellar evolution calculations refer to the mathematically simplest problem, the evolution of an isolated, spherically symmetrical star. This means that the theory is not directly applicable t o rapidly rotating stars, s ...
... There is one important qualification to the discussion above. Almost all of the stellar evolution calculations refer to the mathematically simplest problem, the evolution of an isolated, spherically symmetrical star. This means that the theory is not directly applicable t o rapidly rotating stars, s ...
4373 - Zuber, M. T., H. Y. McSween Jr., R. P. Binzel, L. T. Elkins
... to be consistent with chondrites, but could not constrain the metal content. The composition of the silicate portion (mantle + crust) of Vesta was estimated (Jones 1984) based on mineral-melt partitioning of Mg, Si, and Sc. This bulk silicate composition was equivalent to 75% olivine plus 25% eucrit ...
... to be consistent with chondrites, but could not constrain the metal content. The composition of the silicate portion (mantle + crust) of Vesta was estimated (Jones 1984) based on mineral-melt partitioning of Mg, Si, and Sc. This bulk silicate composition was equivalent to 75% olivine plus 25% eucrit ...
The Origin of Comets - Wesley Grove Chapel
... these dark areas looked smooth and filled lowlying regions. Maria give the Moon its “man-in-the-moon” appearance. Of the Moon’s 31 giant basins, only 11 are on the far side. (See if you can flip 31 coins and get 11 or fewer tails. Not too likely. It happens only about 7% of the time.) Why should the ...
... these dark areas looked smooth and filled lowlying regions. Maria give the Moon its “man-in-the-moon” appearance. Of the Moon’s 31 giant basins, only 11 are on the far side. (See if you can flip 31 coins and get 11 or fewer tails. Not too likely. It happens only about 7% of the time.) Why should the ...
Local Group Encyclopedia of Astronomy & Astrophysics eaa.iop.org Mario L Mateo
... With the striking exception of the Magellanic Clouds, the dIrr galaxies of the Local Group tend to be found far from the two large galaxies (M31 and the Milky Way) of the Local Group. A few of the least luminous dwarf irregulars are also among the most metal-poor galaxies known. Because stars produc ...
... With the striking exception of the Magellanic Clouds, the dIrr galaxies of the Local Group tend to be found far from the two large galaxies (M31 and the Milky Way) of the Local Group. A few of the least luminous dwarf irregulars are also among the most metal-poor galaxies known. Because stars produc ...
12-1 - Piscataway High School
... distant background when you look with first one eye and then with the other (see page 44). In this case, the baseline is the distance between your eyes, and the parallax is the angle through which your thumb appears to move when you change eyes. The farther away you hold your thumb, the smaller the p ...
... distant background when you look with first one eye and then with the other (see page 44). In this case, the baseline is the distance between your eyes, and the parallax is the angle through which your thumb appears to move when you change eyes. The farther away you hold your thumb, the smaller the p ...
Super-Earth and Sub-Neptune Exoplanets: a First Look from the
... space, it learns that our planet is rich in molecular oxygen. It learns that our planet is a place where photosynthesis happens, and it carries that message with it as it departs the Solar System, broadcasting into the cosmos that our planet teems with life. If global photosynthetic life thrives on ...
... space, it learns that our planet is rich in molecular oxygen. It learns that our planet is a place where photosynthesis happens, and it carries that message with it as it departs the Solar System, broadcasting into the cosmos that our planet teems with life. If global photosynthetic life thrives on ...
The science case for - Astrophysics
... dominated by poorly understood dark matter and a mysterious vacuum energy density. This progress poses new, and more fundamental, questions, the answers to some of which will perhaps unite astrophysics with elementary particle physics in a new approach to the nature of matter. Some discoveries, made ...
... dominated by poorly understood dark matter and a mysterious vacuum energy density. This progress poses new, and more fundamental, questions, the answers to some of which will perhaps unite astrophysics with elementary particle physics in a new approach to the nature of matter. Some discoveries, made ...
Dawes Review. The tidal downsizing hypothesis of planet formation
... not accrete more gas in this picture. They may actually loose most of their primordial gas if tidal forces from the host stars are stronger than self-gravity of the clumps. However, before the clumps are destroyed, solid planetary cores are formed inside them when grains grow and sediment to the cen ...
... not accrete more gas in this picture. They may actually loose most of their primordial gas if tidal forces from the host stars are stronger than self-gravity of the clumps. However, before the clumps are destroyed, solid planetary cores are formed inside them when grains grow and sediment to the cen ...
The Oort Cloud
... Scientists have long assumed that the Oort cloud was formed during the infancy of our Solar System, about 4.5 billion years ago. When the giant planets, Jupiter, Saturn, Uranus, and Neptune, formed out of the ancient protoplanetary disk, they did not use up all of the material in their vicinity. A l ...
... Scientists have long assumed that the Oort cloud was formed during the infancy of our Solar System, about 4.5 billion years ago. When the giant planets, Jupiter, Saturn, Uranus, and Neptune, formed out of the ancient protoplanetary disk, they did not use up all of the material in their vicinity. A l ...
Rare Earth hypothesis
In planetary astronomy and astrobiology, the Rare Earth Hypothesis argues that the origin of life and the evolution of biological complexity such as sexually reproducing, multicellular organisms on Earth (and, subsequently, human intelligence) required an improbable combination of astrophysical and geological events and circumstances. The hypothesis argues that complex extraterrestrial life is a very improbable phenomenon and likely to be extremely rare. The term ""Rare Earth"" originates from Rare Earth: Why Complex Life Is Uncommon in the Universe (2000), a book by Peter Ward, a geologist and paleontologist, and Donald E. Brownlee, an astronomer and astrobiologist, both faculty members at the University of Washington.An alternative view point was argued by Carl Sagan and Frank Drake, among others. It holds that Earth is a typical rocky planet in a typical planetary system, located in a non-exceptional region of a common barred-spiral galaxy. Given the principle of mediocrity (also called the Copernican principle), it is probable that the universe teems with complex life. Ward and Brownlee argue to the contrary: that planets, planetary systems, and galactic regions that are as friendly to complex life as are the Earth, the Solar System, and our region of the Milky Way are very rare.