K Corrections For Type Ia Supernovae and a Test for Spatial Variation of the Hubble Constant

Details K Corrections For Type Ia Supernovae and a Test for Spatial Variation of the Hubble Constant K Corrections For Type Ia Supernovae and a Test for Spatial Variation of the Hubble Constant

1996-02-23

arxiv.org/abs/astro-ph/9602123v1

Astronomy and Astrophysics

Astrophysics

6 pages, 3 Postscript figures, uuencoded uses crckapb.sty and psfig.sty. To appear in Thermonuclear Supernovae (NATO ASI), eds

Scientific paper

Cross-filter K corrections for a sample of "normal" Type Ia supernovae (SNe) have been calculated for a range of epochs. With appropriate filter choices, the combined statistical and systematic K correction dispersion of the full sample lies within 0.05 mag for redshifts z<0.7. This narrow dispersion of the calculated K correction allows the Type Ia to be used as a cosmological probe. We use the K corrections with observations of seven SNe at redshifts 0.3 < z <0.5 to bound the possible difference between the locally measured Hubble constant (H_L) and the true cosmological Hubble constant (H_0).

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