PODEX – PhOtometric Data EXtractor
... by minimisation of the point–to–point scatter in the light curve). Following increasing concentric circles from the center of a star’s PSF to the border, the signal–to–background scatter ratio grows smaller. When this ratio falls below a certain level, including further (less exposed) pixels decreas ...
... by minimisation of the point–to–point scatter in the light curve). Following increasing concentric circles from the center of a star’s PSF to the border, the signal–to–background scatter ratio grows smaller. When this ratio falls below a certain level, including further (less exposed) pixels decreas ...
How astero-seismology can help to infer properties of - IAG-Usp
... with linear splittings: • not yet the splittings ! Splitting large enough to be detected •High frequency p-modes probe external layer rotation ...
... with linear splittings: • not yet the splittings ! Splitting large enough to be detected •High frequency p-modes probe external layer rotation ...
Problem Set 2
... ellipse’s semi-major axis. What is the distance d to the supernova? Finally, at its brightest, SN1987A had an apparent magnitude of mV ≈ 3 mag. What was its peak absolute magnitude? Given that the Sun has an absolute magnitude of MV = 4.78 mag in the V band, what was its peak luminosity (in solar u ...
... ellipse’s semi-major axis. What is the distance d to the supernova? Finally, at its brightest, SN1987A had an apparent magnitude of mV ≈ 3 mag. What was its peak absolute magnitude? Given that the Sun has an absolute magnitude of MV = 4.78 mag in the V band, what was its peak luminosity (in solar u ...
The formation of stars and planets
... This is true for all waves (in all directions) with >J. This defines maximum stable mass: a sphere with diameter J: ...
... This is true for all waves (in all directions) with >J. This defines maximum stable mass: a sphere with diameter J: ...
Astronomy Worksheet
... Finally, these are spectra of real stars, not classroom models! It may seem that your star doesn’t obey the rules. Just as with people, some stars reject the status quo and do their own thing. ...
... Finally, these are spectra of real stars, not classroom models! It may seem that your star doesn’t obey the rules. Just as with people, some stars reject the status quo and do their own thing. ...
5Cardeberg.pdf
... stabilization. Boss (2001, 2002) and Boss et al. (2002) provided more evidence for rapid planet formation (Bary et al., 2003). Still, in the generally adopted picture of giant-planet formation, circum-stellar discs dissipate too rapidly to allow giant-planet formation. With disc instabilities a prom ...
... stabilization. Boss (2001, 2002) and Boss et al. (2002) provided more evidence for rapid planet formation (Bary et al., 2003). Still, in the generally adopted picture of giant-planet formation, circum-stellar discs dissipate too rapidly to allow giant-planet formation. With disc instabilities a prom ...
The Physical Properties of Normal A Stars
... significant to being significant with decreasing temperature Many peculiar A stars are detected at classification dispersions (e.g., many mCP stars) while Cowley’s superficially normal A stars (e.g., the HgMn and the marginal Am stars) at higher dispersions. Other peculiar A stars are classified on ...
... significant to being significant with decreasing temperature Many peculiar A stars are detected at classification dispersions (e.g., many mCP stars) while Cowley’s superficially normal A stars (e.g., the HgMn and the marginal Am stars) at higher dispersions. Other peculiar A stars are classified on ...
matthewchristianstarprodject
... It starts with a core of increased density in a molecular cloud and ends with the formation of a T Tauri star, which then becomes a main sequence star. This is held by the T Tauri wind, a type of super solar wind that shows the change from the star ...
... It starts with a core of increased density in a molecular cloud and ends with the formation of a T Tauri star, which then becomes a main sequence star. This is held by the T Tauri wind, a type of super solar wind that shows the change from the star ...
October 2014 - Newbury Astronomical Society
... A star like our Sun will spend a few million years in its very active pre-main sequence phase then settle into its normal life. The luminosity of the star is compared with our Sun on the vertical scale on the left (therefore our Sun is classified as 1). The absolute magnitude is shown on the vertica ...
... A star like our Sun will spend a few million years in its very active pre-main sequence phase then settle into its normal life. The luminosity of the star is compared with our Sun on the vertical scale on the left (therefore our Sun is classified as 1). The absolute magnitude is shown on the vertica ...
Constellations, Star Names, and Magnitudes
... the 2nd century B.C. Called the brightest stars in the night sky “stars of the first magnitude.” Second brightest were “stars of the second magnitude.” All the way down to “stars of the sixth magnitude.” ...
... the 2nd century B.C. Called the brightest stars in the night sky “stars of the first magnitude.” Second brightest were “stars of the second magnitude.” All the way down to “stars of the sixth magnitude.” ...
2014-2015 SCIENCE Instructional Curriculum Plan Grade: K
... SC.5.E.5.In.1: Identify that a galaxy is made of a very large number of stars and the planets that SC.5.E.5.1 Recognize that a galaxy consists of gas, dust, and many stars, including any objects orbiting the stars. Identify orbit them. our home galaxy as the Milky Way. SC.5.E.5.Su.1: Recognize that ...
... SC.5.E.5.In.1: Identify that a galaxy is made of a very large number of stars and the planets that SC.5.E.5.1 Recognize that a galaxy consists of gas, dust, and many stars, including any objects orbiting the stars. Identify orbit them. our home galaxy as the Milky Way. SC.5.E.5.Su.1: Recognize that ...
Powerpoint Presentation (large file)
... 1. What kinds of nuclear reactions occur within a star like the Sun as it ages? 2. Where did the carbon atoms in our bodies come from? 3. What is a planetary nebula, and what does it have to do with planets? 4. What is a white dwarf star? 5. Why do high-mass stars go through more evolutionary stages ...
... 1. What kinds of nuclear reactions occur within a star like the Sun as it ages? 2. Where did the carbon atoms in our bodies come from? 3. What is a planetary nebula, and what does it have to do with planets? 4. What is a white dwarf star? 5. Why do high-mass stars go through more evolutionary stages ...
Deep Space Mystery Note Form 2
... The star goes bang in the cosmic night, and after a luminous and colourful display that lasts for weeks or months it fades away from view. The giant star runs out of fuel and collapses in on itself, and ultimately the explosion leads to its death. Our Sun is not massive enough to blow itself into pi ...
... The star goes bang in the cosmic night, and after a luminous and colourful display that lasts for weeks or months it fades away from view. The giant star runs out of fuel and collapses in on itself, and ultimately the explosion leads to its death. Our Sun is not massive enough to blow itself into pi ...
HD 140283: A Star in the Solar Neighborhood that Formed Shortly
... 2011 March, at dates close to the biannual times of maximum parallax factor. The FGS are interferometers that, in addition to providing guiding control during imaging or spectroscopic observations, can measure precise positions of a target star and several surrounding astrometric reference stars wit ...
... 2011 March, at dates close to the biannual times of maximum parallax factor. The FGS are interferometers that, in addition to providing guiding control during imaging or spectroscopic observations, can measure precise positions of a target star and several surrounding astrometric reference stars wit ...
Answers
... stars with different starting masses. ☆ Select a different starting mass for your star in the ‘Star Properties’ banner. ☆ Use the Hertzsprung-Russell diagram tab, click play to watch your new stars evolution. ☆ Try out a few different masses then answer the following questions. 1. Using the Hertzspr ...
... stars with different starting masses. ☆ Select a different starting mass for your star in the ‘Star Properties’ banner. ☆ Use the Hertzsprung-Russell diagram tab, click play to watch your new stars evolution. ☆ Try out a few different masses then answer the following questions. 1. Using the Hertzspr ...
in the Solar System!
... four planets are closest to the Sun. The outer solar system contains Jupiter, Saturn, Uranus, Neptune and Pluto. The inner planets are separated ...
... four planets are closest to the Sun. The outer solar system contains Jupiter, Saturn, Uranus, Neptune and Pluto. The inner planets are separated ...
