Constraints on Photometric Calibration from Observations of High-Redshift Type Ia Supernovae
| dc.creator | Hogg, David W. | |
| dc.date | 2000-01-25 | |
| dc.date | 2000-02-18 | |
| dc.date.accessioned | 2026-07-25T17:38:34Z | |
| dc.description | The good match of the type Ia supernova (SNIa) Hubble Diagram to the prediction of a not-unreasonable cosmological world model shows that measurements of standard stars and their comparison with point sources down to m=25 mag is good to better than +/-0.5 mag over an 11 mag range. It also shows that the true spectral energy distribution (SED) shapes of standard stars are known to better than +/-0.5 mag over an octave in wavelength. On the other hand, the SNIa argument for an accelerating Universe assumes that the magnitude system is good to much better than ~0.1 mag over the 11 mag range, and that SED shapes are known to much better than ~10 percent over an octave in wavelength. There is no independent empirical evidence for these plausible assumptions. | |
| dc.description | Submitted to AJ. Comments greatly appreciated | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0001419 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0001419 | |
| dc.identifier.uri | https://dspace.dare.co.zw/handle/123456789/49120 | |
| dc.subject | Astrophysics | |
| dc.title | Constraints on Photometric Calibration from Observations of High-Redshift Type Ia Supernovae | |
| dc.type | text |