9/28/16 Wednesday Parallax Lab
... Now, have your lab partner move the pen twice the original distance to you, to approximately the end of the meter stick. When you alternate opening and closing each eye does the pen appear to move more or less than before? Try to quantify how much more or less (twice as much? half as much? three tim ...
... Now, have your lab partner move the pen twice the original distance to you, to approximately the end of the meter stick. When you alternate opening and closing each eye does the pen appear to move more or less than before? Try to quantify how much more or less (twice as much? half as much? three tim ...
Kepler Mission: The Search for Earth-sized Planets
... For which of these star(s) will Kepler be able to detect transiting planets? ...
... For which of these star(s) will Kepler be able to detect transiting planets? ...
LCM Analysis for PLATO 2.0
... and fairly large variations in the maxima separation. In such situation, the spot model is constrained to just several possible locations of the evolving region: stellar pole, back or in front of the second star. Such a stationary starspot must produce a positive correlation between changes in the h ...
... and fairly large variations in the maxima separation. In such situation, the spot model is constrained to just several possible locations of the evolving region: stellar pole, back or in front of the second star. Such a stationary starspot must produce a positive correlation between changes in the h ...
The fate of black hole singularities and the parameters of the
... holes in the observable universe is likely to be as high as one hundred per second1 , this may be taken to be the rate at which our ignorance about the universe is increasing due to our not knowing what lies behind all of these event horizons. When one adds quantum physics to the picture the puzzle ...
... holes in the observable universe is likely to be as high as one hundred per second1 , this may be taken to be the rate at which our ignorance about the universe is increasing due to our not knowing what lies behind all of these event horizons. When one adds quantum physics to the picture the puzzle ...
Testing - uwyo.edu
... The Sun’s luminosity will rise to 1000 times its current level—too hot for life on Earth. ...
... The Sun’s luminosity will rise to 1000 times its current level—too hot for life on Earth. ...
Radiative Precession of an Isolated Neutron Star
... swings. Davis & Goldstein (1970) showed that α tends towards zero on the braking time-scale if the star is a rigid sphere or a fluid body in hydrostatic equilibrium — an unrealistic scenario which leaves all except the youngest pulsars as aligned rotators, contrary to observation. Goldreich (1970) o ...
... swings. Davis & Goldstein (1970) showed that α tends towards zero on the braking time-scale if the star is a rigid sphere or a fluid body in hydrostatic equilibrium — an unrealistic scenario which leaves all except the youngest pulsars as aligned rotators, contrary to observation. Goldreich (1970) o ...
Seventh Week. - UNLV Physics
... Role of Mass • A star's mass determines its entire life story because it determines its core temperature. • High-mass stars with > 8MSun have short lives, eventually becoming hot enough to make iron, and end in supernova explosions. • Low-mass stars with < 2MSun have long lives, never become hot ...
... Role of Mass • A star's mass determines its entire life story because it determines its core temperature. • High-mass stars with > 8MSun have short lives, eventually becoming hot enough to make iron, and end in supernova explosions. • Low-mass stars with < 2MSun have long lives, never become hot ...
Part IV: Stars
... interior, photons can only travel a fraction of a millimeter before “colliding” with an electron and deflecting into a new direction. So photons bounce around at random and only slowly make their way out of the Sun. Mathematical models use the observed composition and mass of the Sun, along with the ...
... interior, photons can only travel a fraction of a millimeter before “colliding” with an electron and deflecting into a new direction. So photons bounce around at random and only slowly make their way out of the Sun. Mathematical models use the observed composition and mass of the Sun, along with the ...
Gaps
... The spectroscopic approach POSSIBLE INTERPRETATIONS • Why some blue HB stars are spinning so fast? 1) Angular momentum transferred from the core to the outer envelope: Magnetic braking on MS only affects a star’s envelope (Peterson et al. 1983, Pinsonneault et al. 1991) Problems : Sun (Corbard et a ...
... The spectroscopic approach POSSIBLE INTERPRETATIONS • Why some blue HB stars are spinning so fast? 1) Angular momentum transferred from the core to the outer envelope: Magnetic braking on MS only affects a star’s envelope (Peterson et al. 1983, Pinsonneault et al. 1991) Problems : Sun (Corbard et a ...
Sample pages 1 PDF
... is so big and, in some parts at least, so incredibly bright. The Orion Nebula is a region of the Orion Molecular Cloud Complex that is especially nearby, a mere 1,300 light years away. It is visible even to the naked eye, as a fuzzy patch halfway down the Sword of Orion asterism. A small telescope r ...
... is so big and, in some parts at least, so incredibly bright. The Orion Nebula is a region of the Orion Molecular Cloud Complex that is especially nearby, a mere 1,300 light years away. It is visible even to the naked eye, as a fuzzy patch halfway down the Sword of Orion asterism. A small telescope r ...
Planet formation in the habitable zone of alpha Centauri B
... τdiss = 105 years. The dissipation is started at 104 years, the end of our nominal run, when all orbits have reached their size-dependent alignment in the HZ. Fig.3 shows the dynamical state of the system after 2τdiss = 2x105 years and clearly illustrates the efficient re-phasing of all orbits, whic ...
... τdiss = 105 years. The dissipation is started at 104 years, the end of our nominal run, when all orbits have reached their size-dependent alignment in the HZ. Fig.3 shows the dynamical state of the system after 2τdiss = 2x105 years and clearly illustrates the efficient re-phasing of all orbits, whic ...
Ben R. Oppenheimer1,2 and Sasha Hinkley1,2
... suggests that a generalized planetary system architecture is not, probably, common. For example, it may be easier for massive planets to form at larger distances from their stars, where the feeding zones during formation are larger. If these massive planets migrate to become “hot Jupiters, ” in the ...
... suggests that a generalized planetary system architecture is not, probably, common. For example, it may be easier for massive planets to form at larger distances from their stars, where the feeding zones during formation are larger. If these massive planets migrate to become “hot Jupiters, ” in the ...
Effect of the stellar spin history on the tidal evolution of close
... convective envelope is thought to be important for the magnetic dynamo, whereas in fully convective low-mass stars other mechanisms have to be invoked to explain their observed magnetic activity (Reiners & Basri 2007). For example, Chabrier & Küker (2006) showed that mean field modeling can produce ...
... convective envelope is thought to be important for the magnetic dynamo, whereas in fully convective low-mass stars other mechanisms have to be invoked to explain their observed magnetic activity (Reiners & Basri 2007). For example, Chabrier & Küker (2006) showed that mean field modeling can produce ...
134-Notes-a
... (Pro tip: the approximation of a year being approximately π × 107 s is actually not too bad, and it’s very easy to remember). As an order of magnitude estimate, the total distance all cars have ever driven is approximately 10 light years. Even more common than the light year is the parsec. A parsec ...
... (Pro tip: the approximation of a year being approximately π × 107 s is actually not too bad, and it’s very easy to remember). As an order of magnitude estimate, the total distance all cars have ever driven is approximately 10 light years. Even more common than the light year is the parsec. A parsec ...
Planet Hunters: The First Two Planet Candidates Identified by the
... case ∼33 day flux-corrected light curves derived from the Kepler data - to an interface, and to collect user-generated interactions with these data. Previous Zooniverse projects have included a separate tutorial to assist volunteers. While the Planet Hunters website includes such a tutorial, initial ...
... case ∼33 day flux-corrected light curves derived from the Kepler data - to an interface, and to collect user-generated interactions with these data. Previous Zooniverse projects have included a separate tutorial to assist volunteers. While the Planet Hunters website includes such a tutorial, initial ...
Standing in Awe - Auckland Astronomical Society
... 1971, shining faintly at magnitude 15.5. A few fainter galaxies lie around 5861, needing larger telescopes to see. North-east of beta and 1° north of delta lies our next target, NGC 5812, a bright, small, round elliptical galaxy with a brighter central region. Moving 3.8° south and slightly east of ...
... 1971, shining faintly at magnitude 15.5. A few fainter galaxies lie around 5861, needing larger telescopes to see. North-east of beta and 1° north of delta lies our next target, NGC 5812, a bright, small, round elliptical galaxy with a brighter central region. Moving 3.8° south and slightly east of ...
Note - HKU Physics
... 4. Mass loss or mass gain of a star is neglected. A star, like our Sun, may loss its mass through ejection of stellar wind. Some stars may gain mass by accretion. These processes are important in the study of certain stars such as white dwarfs, AGB stars and binary stars. Nonetheless, the mass chang ...
... 4. Mass loss or mass gain of a star is neglected. A star, like our Sun, may loss its mass through ejection of stellar wind. Some stars may gain mass by accretion. These processes are important in the study of certain stars such as white dwarfs, AGB stars and binary stars. Nonetheless, the mass chang ...
DTU_9e_ch15
... Sagittarius A*, part of Sgr A. This plot indicates that the stars are held in orbit by a 4 x 106solar-mass black hole. ...
... Sagittarius A*, part of Sgr A. This plot indicates that the stars are held in orbit by a 4 x 106solar-mass black hole. ...
ppt document - FacStaff Home Page for CBU
... much, much more distant stars along the path of the Milky Way than off the Milky Way. The circular path of the Milky Way across the sky indicates that we (the sun and solar system) are inside a fairly thin disk of stars with the plane of the ecliptic tilted about 60o with respect to the plane of the ...
... much, much more distant stars along the path of the Milky Way than off the Milky Way. The circular path of the Milky Way across the sky indicates that we (the sun and solar system) are inside a fairly thin disk of stars with the plane of the ecliptic tilted about 60o with respect to the plane of the ...
Alpha Centauri
... FAMOUS FOR: It’s the 3rd brightest star in the sky. And a member of the triple star system. ...
... FAMOUS FOR: It’s the 3rd brightest star in the sky. And a member of the triple star system. ...
Lyra
Lyra (/ˈlaɪərə/; Latin for lyre, from Greek λύρα) is a small constellation. It is one of 48 listed by the 2nd century astronomer Ptolemy, and is one of the 88 constellations recognized by the International Astronomical Union. Lyra was often represented on star maps as a vulture or an eagle carrying a lyre, and hence sometimes referred to as Aquila Cadens or Vultur Cadens. Beginning at the north, Lyra is bordered by Draco, Hercules, Vulpecula, and Cygnus. Lyra is visible from the northern hemisphere from spring through autumn, and nearly overhead, in temperate latitudes, during the summer months. From the southern hemisphere, it is visible low in the northern sky during the winter months.The lucida or brightest star—and one of the brightest stars in the sky—is the white main sequence star Vega, a corner of the Summer Triangle. Beta Lyrae is the prototype of a class of stars known as Beta Lyrae variables, binary stars so close to each other that they become egg-shaped and material flows from one to the other. Epsilon Lyrae, known informally as the Double Double, is a complex multiple star system. Lyra also hosts the Ring Nebula, the second-discovered and best-known planetary nebula.