rpp2010-rev-astrophysical-constants

rpp2010-rev-astrophysical-constants - 2. Astrophysical...

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2. Astrophysical constants 1 2. ASTROPHYSICAL CONSTANTS AND PARAMETERS Table 2.1 . Revised May 2010 by E. Bergren and D.E. Groom (LBNL). The fgures in parentheses aFter some values give the one standard deviation uncertainties in the last digit(s). Physical constants are From ReF. 1. While every e±ort has been made to obtain the most accurate current values oF the listed quantities, the table does not represent a critical review or adjustment oF the constants, and is not intended as a primary reFerence. The values and uncertainties For the cosmological parameters depend on the exact data sets, priors, and basis parameters used in the ft. Many oF the parameters reported in this table are derived parameters or have non-Gaussian likelihoods. The quoted errors may be highly correlated with those oF other parameters, so care must be taken in propagating them. Unless otherwise specifed, cosmological parameters are best fts oF a spatially-flat ΛCDM cosmology with a power-law initial spectrum to 5-year WMAP data alone [2]. ²or more inFormation see ReF. 3 and the original papers. Quantity Symbol, equation Value Reference, footnote speed oF light c 299 792 458 m s 1 exact[4] Newtonian gravitational constant G N 6 . 674 3(7) × 10 11 m 3 kg 1 s 2 [1] Planck mass p ~ c/G N 1 . 220 89(6) × 10 19 GeV/ c 2 [1] =2 . 176 44(11) × 10 8 kg Planck length p ~ G N /c 3 1 . 616 25(8) × 10 35 m[ 1 ] standard gravitational acceleration g N 9 . 806 65 m s 2 π 2 exact[1] jansky (flux density) Jy 10 26 Wm 2 Hz 1 defnition tropical year (equinox to equinox) (2011) yr 31 556 925 . 2s π × 10 7 s[ 5 ] sidereal year (fxed star to fxed star) (2011) 31 558 149 . 8s π × 10 7 5 ] mean sidereal day (2011) (time between vernal equinox transits) 23 h 56 m 04. s 090 53 [5] astronomical unit au , A 149 597 870 700(3) m [6] parsec (1 au /1 arc sec) pc 3 . 085 677 6 × 10 16 m = 3.262 ... ly [7] light year (deprecated unit) ly 0 . 306 6 pc = 0 . 946 053 × 10 16 m Schwarzschild radius oF the Sun 2 G N M ± /c 2 2 . 953 250 077 0(2) km [8] Solar mass M ± 1 . 988 4(2) × 10 30 kg [9] Solar equatorial radius R ± 6 . 9551(4) × 10 8 m [10] Solar luminosity L ± 3 . 842 7(1 4) × 10 26 W [11] Schwarzschild radius oF the Earth 2 G N M /c 2 8 . 870 055 94(2) mm [12] Earth mass M 5 . 972 2(6) × 10 24 kg [13] Earth mean equatorial radius R 6 . 378 137 × 10 6 5 ] luminosity conversion (deprecated) L 3 . 02 × 10 28 × 10 0 . 4 M bol W [14] ( M bol = absolute bolometric magnitude = bolometric magnitude at 10 pc) flux conversion (deprecated) F 2 . 52 × 10 8 × 10 0 . 4 m bol 2 From above ( m bol = apparent bolometric magnitude) ABsolute monochromatic magnitude AB 2 .
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This note was uploaded on 06/07/2011 for the course PHYS 4132 taught by Professor Kutter during the Spring '11 term at University of Florida.

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rpp2010-rev-astrophysical-constants - 2. Astrophysical...

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