14 sample documents related to ASTR 228

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  planetaryMotion.xls

  George Mason ASTR 228
  

  Keplerian Motion Simulator A simulator to demonstrate application of Kepler\'s Laws of planetary motion for two fictitious planets orbiting the Sun. From an input of semi-major axes, eccentricities, and orientations of the orbital plane for the two pl
   
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  binaryMotion60.xls

  George Mason ASTR 228
  

  Binary Star Orbits Input Data Semi-major Axis of Relative Orbit (AU) = Eccentricity of Relative Orbit = Ratio of Mass of Primary Star to Secondary Star = Mass of Primary Star (solar masses) = Inclination Normal to Orbital Plane to Line of Sight (degr
   
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  planckFunction.xls

  George Mason ASTR 228
  

  Planck Function Input Quantities Delta Lambda = Initial Lambda = Temperature: T1 (K) = T2 (K) = T3 (K) = 100 1000 10000 2000 3000 c1/ = 2hc2 = c2 = hc/k = T4 (K) = T5 (K) = T6 (K) = T1 (K) = c2/T 14.3877 13.0797 11.9898 11.0675 10.2769 9.5918 8.992
   
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  hydrogenIonizationExcitation.xls

  George Mason ASTR 228
  

  Hydrogen Excitation and Ionization - Boltzmann a Mod = 0.43 Er(erg/eV)= 1.6021E-12 k (ergs/K) = 1.3807E-16 k (eV/K) = 8.6174E-05 A = 5039.558366 log10 Pe = 2.47712 Tinitial (K) = 2000 T (K) = 100 Step 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1
   
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  solarAbundances.xls

  George Mason ASTR 228
  

  Solar Abundances, Allen\'s Astrophysical Quantitites, 2000, Page 29 Atomic Element H He C N O Ne Na Mg Al Si S Ar Ca Fe Ni Number 1 2 6 7 8 10 11 12 13 14 16 18 20 26 28 log Abundance 12.00 10.99 8.56 8.05 8.93 8.09 6.33 7.58 6.47 7.55 7.21 6.56 6.3
   
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  solarInteriorModelAllen.xls

  George Mason ASTR 228
  

  Interior Model for Evolved Sun, by Pierre Demarque and David Guenther, Allen, Table 14.2 Basic Assumptions: No rotation, no diffusion, no magnetic pressure Xsurface = 0.6937 Xcenter = 0.3550 Ysurface = 0.2875 Zsurface = 0.0188 r r/Rsun 0.00000 0.0070
   
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  opacityRosselandMeanAllen.xls

  George Mason ASTR 228
  

  Rosseland Mean Opacity log Temperature (106 K) 0.006 0.007 0.008 0.009 0.010 0.011 0.012 0.014 0.016 0.018 0.020 0.025 0.030 0.035 0.040 0.045 0.050 0.055 0.060 0.070 0.080 0.090 0.100 0.120 0.150 0.200 0.250 0.300 0.400 0.500 0.600 0.800 1.000 1.2
   
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  kramersOpacityHansen.xls

  George Mason ASTR 228
  

  Kramers Opacity for Bound-Free, Free-Free, and Electron Scattering T(start) = 3.00 del exponent T = 0.50 X = 0.6937 Y = 0.2875 Z = 0.0188 0.01 f-f 2 (cm /g) 2.1021E+10 3.7381E+08 6.6474E+06 1.1821E+05 2.1021E+03 3.7381E+01 6.6474E-01 1.1821E-02 2.102
   
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  solarAbundancesModelAtmosphere.xls

  George Mason ASTR 228
  

  Basic Data for the Sun, Allen\'s Astrophysical Quantities, Page 340 Mass (g) = Radius (cm) = Volume (cm3) = Surface Area (cm2) = Mean Density (g/cm3) = Surface Gravity (cm/s2) = 1.9890E+33 6.9551E+10 1.4122E+33 6.0870E+22 1.4090E+00 2.7400E+04 0 S
   
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  zamsModels.xls

  George Mason ASTR 228
  

  Zero-Age Main Sequence Models - Hansen & Kawaler Initial Guesses Tc (K) R (cm) 6.5300E+06 1.7080E+10 8.1660E+06 2.8509E+10 1.0188E+07 3.9938E+10 1.2210E+07 5.1367E+10 1.4419E+07 6.9321E+10 1.6695E+07 8.6472E+10 1.9053E+07 9.1508E+10 2.1087E+07 1.0300
   
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  stellarFluxesAllen.xls

  George Mason ASTR 228
  

  Theoretical Physical Continuum Fluxes, Allen, Page 394 log g = X,Y,Z = 4.00 solar log F (ergs/cm2*s*A) Wavelength (A) 506 890 920 1482 2012 2506 3012 3636 3661 4012 4512 5025 5525 6025 7075 8152 8252 10050 14594 27000 50000 100000 200000 Teff (K) = 5
   
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  distanceConversionsTable.xls

  George Mason ASTR 228
  

  Distance Units Conversion Table Conversion Factors: km/AU= 1.49598E+08 km/ly= 9.46073E+12 km/pc= 3.08568E+13 AU/ly= 6.32411E+04 AU/pc= 2.06265E+05 Conversion To AU ly 6.68459E-09 1.05700E-13 1.00 1.58125E-05 6.32411E+04 1.00 2.06265E+05 3.26156E+00
   
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  MKspectralTypeCalibration.xls

  George Mason ASTR 228
  

  Calibration of MK Spectral Types, Allen\'s Astrophysical Quantities, Table 15.7, Page 388 Absolute Visual Magnitude MV -5.70 -4.50 -4.00 -2.45 -1.20 -0.25 0.65 1.30 1.95 2.70 3.10 3.50 4.00 4.40 4.70 5.10 5.50 5.90 6.40 7.35 8.80 9.90 12.30 0.90 0.80
   
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  FriedmannLemaitreEq6HTV06.xls

  George Mason ASTR 228
  

  Age of the Universe: Numerical Integration of the Friedmann-Lemaitre Equations f Ho (km/s/Mpc) = Error Ho (km/s/Mpc) = 71.00 71.00 o = Error o = GM = AL = X= OS = 0.27 0.27 5.21567777E+00 0.00000000E+00 1.15542325E+00 1.66589283E+00 Hubble Time tH (