presentation source
... “[Even though T Tauri associations could all have similar colors implying young age by coincidence], it is of course, tempting to search for a connection between the T Tauri stars and Bok’s ‘globules,’ but we must admit that at present there is no evidence of any objects intermediate between the two ...
... “[Even though T Tauri associations could all have similar colors implying young age by coincidence], it is of course, tempting to search for a connection between the T Tauri stars and Bok’s ‘globules,’ but we must admit that at present there is no evidence of any objects intermediate between the two ...
The Dynamics-Based Approach to Studying Terrestrial Exoplanets
... (i.e. emergent infrared spectra obtained at secondary eclipse). We believe that it is these methods, not imaging, that will yield the first detections of terrestrial exoplanets orbiting within their stellar habitable zones, as well as the first observations of the spectra of such planets. We see fou ...
... (i.e. emergent infrared spectra obtained at secondary eclipse). We believe that it is these methods, not imaging, that will yield the first detections of terrestrial exoplanets orbiting within their stellar habitable zones, as well as the first observations of the spectra of such planets. We see fou ...
Question 1
... Question 4 The habitable zone is the area where a) temperatures on a planet are reasonable. b) terrestrial planets can form around a star. c) terrestrial planets could have liquid water on their surfaces. d) liquid water can condense into rain in the atmosphere. e) Sun-like stars can exist in the M ...
... Question 4 The habitable zone is the area where a) temperatures on a planet are reasonable. b) terrestrial planets can form around a star. c) terrestrial planets could have liquid water on their surfaces. d) liquid water can condense into rain in the atmosphere. e) Sun-like stars can exist in the M ...
General Astronomy - Stockton University
... Nearby stars are the best because: Planets are brighter. The angular separation between planets and the star is larger Stars are brighter Doppler shifts easier to measure Motions on the sky easier to measure Stars with distance less than 10 parsecs from the Sun ...
... Nearby stars are the best because: Planets are brighter. The angular separation between planets and the star is larger Stars are brighter Doppler shifts easier to measure Motions on the sky easier to measure Stars with distance less than 10 parsecs from the Sun ...
Document
... • The mission will yield a variety of data to calibrate dynamo models, sampling many different sets of physical conditions and evolutionary phases. ...
... • The mission will yield a variety of data to calibrate dynamo models, sampling many different sets of physical conditions and evolutionary phases. ...
The Sizes of Stars
... Dust and Young Stellar Objects Just like in the earth’s atmosphere, the longer wavelength light better penetrates the interstellar dust, while the shorter wavelength light is scattered away. The protostars are totally obscured in the optical, but can be detected in the infrared. ...
... Dust and Young Stellar Objects Just like in the earth’s atmosphere, the longer wavelength light better penetrates the interstellar dust, while the shorter wavelength light is scattered away. The protostars are totally obscured in the optical, but can be detected in the infrared. ...
Research Essay “On the Origin of the Solar System”
... material would generally fall back into the Sun but some of material would be captured in an orbit. Maxwell's equations for charged plasma’s in a magnetic field being very angle dependent means that a uniform planetary system could be created.23 Mid twentieth century scientists became more aware of ...
... material would generally fall back into the Sun but some of material would be captured in an orbit. Maxwell's equations for charged plasma’s in a magnetic field being very angle dependent means that a uniform planetary system could be created.23 Mid twentieth century scientists became more aware of ...
Duncan Wright
... CYCLOPS is a single object Integral field unit made up of 15 close-packed 0.6” hexagonal fibres (only 12 functioning) that are arranged to have a ~2.5” diameter on the sky (see Figure 2). The fibres are reformatted to make a pseudo slit that injects light into UCLES at resolution ~70000. Each of the ...
... CYCLOPS is a single object Integral field unit made up of 15 close-packed 0.6” hexagonal fibres (only 12 functioning) that are arranged to have a ~2.5” diameter on the sky (see Figure 2). The fibres are reformatted to make a pseudo slit that injects light into UCLES at resolution ~70000. Each of the ...
Possible patterns in the distribution of planetary formation regions
... method of Murray and Dermott (1999) as outlined in Lynch (2003). From Monte Carlo simulations with 105 samples, the chances that eleven distances be arranged in a similar way as in our solar system (in terms of residuals to an exponential fit) are not small (83%). The inclusion of Eris made a change ...
... method of Murray and Dermott (1999) as outlined in Lynch (2003). From Monte Carlo simulations with 105 samples, the chances that eleven distances be arranged in a similar way as in our solar system (in terms of residuals to an exponential fit) are not small (83%). The inclusion of Eris made a change ...
ORBITAL MOTION
... Stage 1. The density shields the core from external radiation, allowing the temperature to drop slightly. Dust grains provide efficient cooling. The hydrogen is molecular. Stage 2. An isothermal collapse all the way from densities of 10 4 cm-3 then ...
... Stage 1. The density shields the core from external radiation, allowing the temperature to drop slightly. Dust grains provide efficient cooling. The hydrogen is molecular. Stage 2. An isothermal collapse all the way from densities of 10 4 cm-3 then ...
Very Low Mass Stars as Optimum Sites of Habitable Planets
... Low-mass stars (spectral type M, masses below ~ 0.7 solar masses) spend their first few Gyr as dMe flare stars, and only gradually decline in activity. Habitable planets? Since lowest mass stars are most common in Galaxy, and 3D hydro/climate simulations by Joshii et al. (1997) showed atmospheric re ...
... Low-mass stars (spectral type M, masses below ~ 0.7 solar masses) spend their first few Gyr as dMe flare stars, and only gradually decline in activity. Habitable planets? Since lowest mass stars are most common in Galaxy, and 3D hydro/climate simulations by Joshii et al. (1997) showed atmospheric re ...
Outline2a
... Dust and Young Stellar Objects Just like in the Earth’s atmosphere, the longer wavelength light better penetrates the interstellar dust, while the shorter wavelength light is scattered away. The protostars are totally obscured in the optical, but can be detected in the infrared. ...
... Dust and Young Stellar Objects Just like in the Earth’s atmosphere, the longer wavelength light better penetrates the interstellar dust, while the shorter wavelength light is scattered away. The protostars are totally obscured in the optical, but can be detected in the infrared. ...
Investigation 1 Solar Nebula Theory Student Guide 3_16_13_draft
... Systems unit, a video showed you how gravity keeps planets in orbit and acts on stars and planets. You whirled a ball around your head to see how gravity kept the moon in orbit around the earth, and keeps planets in orbit around the sun. Some activities showed you how the force of gravity has differ ...
... Systems unit, a video showed you how gravity keeps planets in orbit and acts on stars and planets. You whirled a ball around your head to see how gravity kept the moon in orbit around the earth, and keeps planets in orbit around the sun. Some activities showed you how the force of gravity has differ ...
A report of the SEEDS Direct Imaging Survey
... □ SEEDS has explored the wide-orbit giant planets of the Solar system scale. As a systematic survey, SEEDS has been most successful in direct imaging of planets. □ From SEEDS, 3 direct imaging discovery of planets and boundary-mass-objects (GJ 504 b, κ And b, GJ 758 b) and 3 brown dwarfs detection i ...
... □ SEEDS has explored the wide-orbit giant planets of the Solar system scale. As a systematic survey, SEEDS has been most successful in direct imaging of planets. □ From SEEDS, 3 direct imaging discovery of planets and boundary-mass-objects (GJ 504 b, κ And b, GJ 758 b) and 3 brown dwarfs detection i ...
Chapter 18 The Interstellar Medium - University of Texas Astronomy
... and ionized by the UV radiation of hot young stars that recently formed within them. A hot thin gas radiates emission lines, which is what most of this light represents. ...
... and ionized by the UV radiation of hot young stars that recently formed within them. A hot thin gas radiates emission lines, which is what most of this light represents. ...
STARS AND PLANETS: A NEW SET OF MIDDLE SCHOOL
... size of a cherry to a small car) to the Sun and Earth. Key concepts include: • Stars are not all the same. They come in different colors, sizes, and masses. • The Sun is a medium sized star. • The Earth is much smaller than any star. Distances of Stars: Using maps, students plan a scale model to exp ...
... size of a cherry to a small car) to the Sun and Earth. Key concepts include: • Stars are not all the same. They come in different colors, sizes, and masses. • The Sun is a medium sized star. • The Earth is much smaller than any star. Distances of Stars: Using maps, students plan a scale model to exp ...
An Earth-sized Planet in the Habitable Zone of a
... out, the planet was likely vulnerable to photo-evaporation early in the star’s life when extreme ultra-violet (XUV) flux from the star was significantly higher. Hence any H/He envelope that was accreted would likely have been stripped via hydrodynamic mass loss (23). Although Kepler-186f likely does ...
... out, the planet was likely vulnerable to photo-evaporation early in the star’s life when extreme ultra-violet (XUV) flux from the star was significantly higher. Hence any H/He envelope that was accreted would likely have been stripped via hydrodynamic mass loss (23). Although Kepler-186f likely does ...
Powerpoint
... As it collapses, the center becomes hotter and hotter until nuclear fusion begins in the core. Probably new molecular clouds form continually out of less dense gas. Some collapse under their own gravity. Others may be more stable. Magnetic fields and rotation also have some influence. Gravity makes ...
... As it collapses, the center becomes hotter and hotter until nuclear fusion begins in the core. Probably new molecular clouds form continually out of less dense gas. Some collapse under their own gravity. Others may be more stable. Magnetic fields and rotation also have some influence. Gravity makes ...
- Europhysics News
... while we know that this process is common in planetary systems. Migration is a likely mechanism, which could possibly explain two kinds of exotic hot exoplanets. Some are giant objects with a very low density, as HD209458b (d = 0.36 g/cm3). These objects could be “inflated Jupiters” whose atmosphere ...
... while we know that this process is common in planetary systems. Migration is a likely mechanism, which could possibly explain two kinds of exotic hot exoplanets. Some are giant objects with a very low density, as HD209458b (d = 0.36 g/cm3). These objects could be “inflated Jupiters” whose atmosphere ...
High Contrast - University of Arizona
... Current theories of disk/planet evolution suggest a presumed epoch of planet-building via the formation and agglomerative growth of embryonic bodies, and the subsequent accretion of gaseous atmospheres onto hot giant planets, is attendant with a significant decline in the gas-to-dust ratios in the r ...
... Current theories of disk/planet evolution suggest a presumed epoch of planet-building via the formation and agglomerative growth of embryonic bodies, and the subsequent accretion of gaseous atmospheres onto hot giant planets, is attendant with a significant decline in the gas-to-dust ratios in the r ...
Lecture9_2014_v2 - UCO/Lick Observatory
... » Slowly accreting icy planets in outer system (Uranus, ...
... » Slowly accreting icy planets in outer system (Uranus, ...
- BIO Web of Conferences
... We can define, from this diagram, two kind of media where water can be liquid: (1) At moderate pressures and temperatures in the range [0° - 100°C], we find the atmospheres of the rocky planets and possibly small exoplanets; (2) at higher pressures and temperatures, the interiors of outer icy satell ...
... We can define, from this diagram, two kind of media where water can be liquid: (1) At moderate pressures and temperatures in the range [0° - 100°C], we find the atmospheres of the rocky planets and possibly small exoplanets; (2) at higher pressures and temperatures, the interiors of outer icy satell ...
ph709-09
... 2008, OGLE-2006-BLG-109Lb and OGLE-2006-BLG-109Lc On February 14 the discovery of the, until now, most similar Jupiter-Saturn planetary system constellation was announced, with the ratios of mass, distance to their star and orbiting time similar to that of Jupiter-Saturn. This can be important for p ...
... 2008, OGLE-2006-BLG-109Lb and OGLE-2006-BLG-109Lc On February 14 the discovery of the, until now, most similar Jupiter-Saturn planetary system constellation was announced, with the ratios of mass, distance to their star and orbiting time similar to that of Jupiter-Saturn. This can be important for p ...
Introduction - Beck-Shop
... the planets are not insignificant. More than 98% of the angular momentum in the Solar System lies in orbital motions of the planets. Moreover, the Sun is a fundamentally different type of body from the planets – a ball of plasma powered by nuclear fusion in its core – but the smaller bodies in the S ...
... the planets are not insignificant. More than 98% of the angular momentum in the Solar System lies in orbital motions of the planets. Moreover, the Sun is a fundamentally different type of body from the planets – a ball of plasma powered by nuclear fusion in its core – but the smaller bodies in the S ...
Discovering Asteroids Using
... ices boiling off its surface due to the heat from the Sun. b. turbulence in the air created by the meteor. c. gases being ejected from the meteor due to heat from the Sun. d. rocky material of the meteor burning up due to friction with the Earth’s atmosphere. a. ...
... ices boiling off its surface due to the heat from the Sun. b. turbulence in the air created by the meteor. c. gases being ejected from the meteor due to heat from the Sun. d. rocky material of the meteor burning up due to friction with the Earth’s atmosphere. a. ...