Recently Published Values Of The Hubble Constant | |||||||||||||||||||||||||||||||||||||
Below is a table showing some of the recently published values of the Hubble Constant, H. The list is not intended to be complete. The sample was chosen by doing a search in the ADS database. If anyone is upset at being left out then please send me an e mail and I will include your result. | |||||||||||||||||||||||||||||||||||||
To save space we will give the constant 'hr/m per cubic metre of space' the symbol 'A' (A for Ashmore's constant -look, it's my web page and it was me who thought of the paradox so I will do as I please!) | |||||||||||||||||||||||||||||||||||||
A = hr/m per cubic metre of space |
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Where, A is the ashmore constant; h is the planck constant; r the classical radius of the electron and m is the rest mass of the electron | |||||||||||||||||||||||||||||||||||||
Value of H 0.91A 1.1A 1.2A 0.89A 0.94A 1.1A 0.94A 1.2A 1.3A (0.94 – 1.1)A 0.92A 1.1A 1.0A 0.97A 1.0A 1.0A 1.0A 1.1A 0.86A 1.0A 0.94A 1.0A 0.94A (0.66 – 0.95)A (0.94 – 1.3)A 1.4A |
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Bib. Code 2003acfp.conf..423C 2003dhst.symp..214F 2002Ap...45...253T 2002MNRAS.333..318G 2001PASJ..53..701T 2001ApJ..553..47F 2001AstHe.94.214I 2001ApJ.550..503J 2001ApJ.548..564W 2001PASA..18..179K 2000ApJ..538..505M 2000ApJ..529..698S 1999MNRAS.310..175T 1999ApJ..525..209T 1999ApJS..125..73J 1999AJ..117.1175S 1999IAUS..183..681 1999PhDT…29M 1998ApJ..509..80S 1998AAS..19310604J 1998A&A..339..671P 1998ApJ..503..553W 1998MNRAS..298..166S 1998ApJ..501..1H 1998ApJ..498L..99C 1998ApJ..449..577L |
Method Used Grav. lens HST - Cepheids Hst - Stars Xray emission CO line T-F HST Cepheids Xray emission SBF HST Cepheids Grav. lens Xray emission HST Cepheids HST Cepheids Ia Supernovae Ia Supernovae Ia Supernova Ia Supernovae Xray emission Ia Supernovae Ia Supernovae HIPPARCOS Galaxies T-F TRGB Xray emission Xray emission HST SBF |
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Author Cardone et al Freedman et al. Tikhonov et.al. Garinge et al. Tutui et al. Freedman et al. Itoh et al. Jensen et al. Willick et al. Koopmans et al Mauskopf et al. Sakai et al. Tanvir et al. Tripp et al. Jha et al. Suntzeff et al Iwamoto et al. Mason Schaefer et al. Jha et al. Patural et al. Wantanabe et al Salaris et al. Hughes et al. Cen et al. Lauer et al |
Date 00/2003 00/2003 07/2002 06/2002 10/2001 05/2001 05/2001 04/2001 02/2001 00/2001 08.2000 02/2000 11/1999 11/1999 11/1999 03/1999 00/1999 00/1999 12/1998 12/1998 11/1998 08/1998 07/1998 07/1998 05/1998 05/1998 |
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Average value 1.0A | |||||||||||||||||||||||||||||||||||||
You will see that all the results from all methods are close to hr/m per cubic metre of space. What is interesting is that the average of these results is 1.0hr/m (and remember, these are amongst the most recent and therefore one would assume the most accurate measurements of H) | |||||||||||||||||||||||||||||||||||||
i.e. H = hr/m per cubic metre | |||||||||||||||||||||||||||||||||||||
As I said before, some coincidence eh? | |||||||||||||||||||||||||||||||||||||
To get an unbiased sample, the title words "Hubble AND constant AND measurement" were fed into the ADS database search engine and 'return 100 items' chosen. Of these, all the papers giving an actual value for H are listed above. In theory, all the most recently measured values of H over the last 5 years should be listed. | |||||||||||||||||||||||||||||||||||||
So there you have it, whichever technique you use to measure redshift and the distance to nearby gakaxies in order to find the the Hubble constant, (gravitational lensing, Cepheid variables, X ray emission, supernova), and whether you measure it from Earth or the Hubble space telescope, all the values come close to a combination of the parameters of the electron and the planck constant. With the expanding Universe and the Big Bang theory, will cosmologists still stick to their theories and reject tired light? Probably! | |||||||||||||||||||||||||||||||||||||
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© Lyndon E. Ashmore. 2003. All rights reserved. Last modified 15/11/2003 |