Time variability of the gravitational constant and type Ia supernovae
We investigate to which extent a time variation of the gravitational constant or other fundamental constants affects the best fit of the Hubble diagram of type Ia supernovae. In particular, we show that a slow increase of $G$ in the past, below experimental constraints, can reconcile the SNe Ia obse...
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| Main Authors: | , , |
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| Format: | Article (Journal) Chapter/Article |
| Language: | English |
| Published: |
1999
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| In: |
Arxiv
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| Online Access: | Verlag, kostenfrei, Volltext: http://arxiv.org/abs/astro-ph/9907222
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| Author Notes: | Luca Amendola, Stefano Corasaniti, Franco Occhionero, Osservatorio Astronomico di Roma, Viale Parco Mellini 84, 00136 Roma, Italy |
| Summary: | We investigate to which extent a time variation of the gravitational constant or other fundamental constants affects the best fit of the Hubble diagram of type Ia supernovae. In particular, we show that a slow increase of $G$ in the past, below experimental constraints, can reconcile the SNe Ia observations with an open zero-$\Lambda$ universe. |
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| Item Description: | Gesehen am 20.11.2017 |
| Physical Description: | Online Resource |