Mark Zilberman. Shouldn’t Doppler 'de-boosting' be accounted for in calculations of the intrinsic luminosity of Standard candles?


Natural Sciences / Astronomy / Cosmology

Submitted on: Oct 13, 2021, 14:07:40

Description: ‚EúDoppler boosting / de-boosting‚EĚ is a well-known relativistic effect that alters the apparent luminosity of approaching/receding radiation sources. ‚EúDoppler boosting‚EĚ alters the apparent luminosity of approaching light sources to appear brighter, while ‚EúDoppler de-boosting‚EĚ alters the apparent luminosity of receding light sources to appear fainter. While ‚EúDoppler boosting / de-boosting‚EĚ has been successfully accounted for and observed in relativistic jets of active galactic nuclei, double white dwarfs, pulsars, in search of exoplanets and stars in binary systems it was ignored in the establishment of Standard candles for cosmological distances. A Standard candle adjustment appears necessary for ‚EúDoppler de-boosting‚EĚ for high z, otherwise we would incorrectly assume that Standard candles appear dimmer, not because of ‚EúDoppler de-boosting‚EĚ but because of the excessive distance, which would affect the entire Standard candles ladder at cosmological distances. The ratio between apparent (L) and intrinsic (Lo) luminosities as a function of redshift z and spectral index IĪ is given by the formula ‚Ą≥(z) ‚Č° L/Lo=(z+1)^(IĪ-3) and for Type Ia supernova as ‚Ą≥(z)‚Č°L/Lo=(z+1)^(-2). These formulas are obtained within the framework of Special Relativity and may require adjustments within the General Relativity framework.

The Library of Congress (USA) reference page : http://lccn.loc.gov/cn2013300046.

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Shouldn't Doppler 'De-boosting' be accounted for in calculations of intrinsic luminosity of Standard Candles.pdf



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