A-105 Homework 1
... 12. (2 pts.) If the fastest passenger aircraft can fly 1600 km/hr (1000 mph), how many years would it take to reach the sun (in hours)? The Galactic center (in years)? (1 pc 3 1013 km.) ...
... 12. (2 pts.) If the fastest passenger aircraft can fly 1600 km/hr (1000 mph), how many years would it take to reach the sun (in hours)? The Galactic center (in years)? (1 pc 3 1013 km.) ...
Shape of a slowly rotating star measured by asteroseismology
... Other than a magnetic field, there are few alternative explanations for the reduced oblateness. At this level of precision, the physics of stellar oscillations may need to be studied in more detail. In particular, it is not quite excluded that nonlinear (amplitude) effects could play a role; this sh ...
... Other than a magnetic field, there are few alternative explanations for the reduced oblateness. At this level of precision, the physics of stellar oscillations may need to be studied in more detail. In particular, it is not quite excluded that nonlinear (amplitude) effects could play a role; this sh ...
CONSTELLATION TUCANA, THE TOUCAN
... of 4300 K, it is 424 times as luminous as the sun and 37 times its diameter. It is 2.5 to 3 times as massive. Alpha Tucanae is a spectroscopic binary, which means that the two stars have not been individually resolved using a telescope, but the presence of the companion has been inferred from measur ...
... of 4300 K, it is 424 times as luminous as the sun and 37 times its diameter. It is 2.5 to 3 times as massive. Alpha Tucanae is a spectroscopic binary, which means that the two stars have not been individually resolved using a telescope, but the presence of the companion has been inferred from measur ...
Oct5
... * Most carbon, oxygen comes from low-mass red giant winds * Most of the heavy elements come from supernovae * New stars form out of interstellar gas which has been enriched with elements by red giant winds, planetary nebulae and supernovae. * Older stars on the main sequence have relatively fewer at ...
... * Most carbon, oxygen comes from low-mass red giant winds * Most of the heavy elements come from supernovae * New stars form out of interstellar gas which has been enriched with elements by red giant winds, planetary nebulae and supernovae. * Older stars on the main sequence have relatively fewer at ...
Life Cycle of Stars
... The term „double star“ is used for binary star systems, but also for stars that optically just appear close to each other. Binary star systems are very important references for astronomers: Their orbits allow to determine their masses, which again allows to calculate radius and density. Resulting ma ...
... The term „double star“ is used for binary star systems, but also for stars that optically just appear close to each other. Binary star systems are very important references for astronomers: Their orbits allow to determine their masses, which again allows to calculate radius and density. Resulting ma ...
Hungry Young Stars: A New Explanation for the FU Ori Outbursts
... • We provide an explanation for the origin of FU Ori bursts. • A young star devours embryos that form in the disk, resulting in colossal bursts of luminosity. This process repeats as long as nebular material rains onto the disk. • The new feature in our model is the self-consistent formation and evo ...
... • We provide an explanation for the origin of FU Ori bursts. • A young star devours embryos that form in the disk, resulting in colossal bursts of luminosity. This process repeats as long as nebular material rains onto the disk. • The new feature in our model is the self-consistent formation and evo ...
Primary and secondary eclipse spectroscopy with JWST: exploring
... nominal mission time (summing observations, M4 V and lighter host star for primary eclipses, M5 V for secondary). If every star up to this mass limit and distance were to host a habitable planet, there would be statistically a little under one eclipsing case. We also show that detection in transmiss ...
... nominal mission time (summing observations, M4 V and lighter host star for primary eclipses, M5 V for secondary). If every star up to this mass limit and distance were to host a habitable planet, there would be statistically a little under one eclipsing case. We also show that detection in transmiss ...
Birth - Wayne State University Physics and Astronomy
... undergo fusion into helium, with about 4 million tons turning to energy in the process This rate of hydrogen use means that eventually the Sun (and all other stars) will run out of central fuel ...
... undergo fusion into helium, with about 4 million tons turning to energy in the process This rate of hydrogen use means that eventually the Sun (and all other stars) will run out of central fuel ...
hotstar_xrays
... scorpion -- as seen at 10 PM on a June evening from Swarthmore. t Sco is a B0 V star -- with a surface temperature of about 30,000 K (5 times the sun’s temperature), and with about 50,000 times the sun’s luminosity. It has unusual ultraviolet absorption lines, a very low projected rotational velocit ...
... scorpion -- as seen at 10 PM on a June evening from Swarthmore. t Sco is a B0 V star -- with a surface temperature of about 30,000 K (5 times the sun’s temperature), and with about 50,000 times the sun’s luminosity. It has unusual ultraviolet absorption lines, a very low projected rotational velocit ...
Lecture 10 Spectra of Stars and Binaries
... • We need to follow the orbits long enough to trace them out in detail. – This can take decades. – Need to work out the projecZon on the sky. ...
... • We need to follow the orbits long enough to trace them out in detail. – This can take decades. – Need to work out the projecZon on the sky. ...
7-12 Script - Geophysical Institute
... night sky (together, they kind of look like a short-handled little dipper). They shine so bright and vivid that cultures the world over have adopted them into their culture. Try to imagine some of the age old shapes and stories given to the Pleiades the next time you look up at the stars over Alaska ...
... night sky (together, they kind of look like a short-handled little dipper). They shine so bright and vivid that cultures the world over have adopted them into their culture. Try to imagine some of the age old shapes and stories given to the Pleiades the next time you look up at the stars over Alaska ...
Carolina Kehrig
... There is still a lack of understanding of narrow HeII emitters even at low redshift WR features are not seen whenever narrow HeII is observed IFS spatial offset between nebular HeII-emitting zone and WR stars can be a possible explanation for the non-detection of WR features in some galaxy s ...
... There is still a lack of understanding of narrow HeII emitters even at low redshift WR features are not seen whenever narrow HeII is observed IFS spatial offset between nebular HeII-emitting zone and WR stars can be a possible explanation for the non-detection of WR features in some galaxy s ...
Cosmology Î Bottom-Up formation of structures
... • Plug into equations for luminosity or angular size distance as needed (Ned Wright’s Cosmology Calculator) ...
... • Plug into equations for luminosity or angular size distance as needed (Ned Wright’s Cosmology Calculator) ...
stars-notes
... • When a chemical element emits light, only some colors in the spectrum show up. The colors that appear are called emission lines. • Every element has a unique set of emission lines that act like a fingerprint for that element. ...
... • When a chemical element emits light, only some colors in the spectrum show up. The colors that appear are called emission lines. • Every element has a unique set of emission lines that act like a fingerprint for that element. ...
