Abstract
We propose a generic test for models in which gravity is modified to do away with dark matter. These models tend to have gravitons couple to a different metric than ordinary matter. A strong test of such models comes from comparing the arrival time of the gravitational wave pulse from a cosmological event such as a supernova with the arrival times of the associated pulses of neutrinos and photons. For SN 1987a we show that the gravity wave would have arrived 5.3 days after the neutrino pulse.
Original language | English |
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Pages (from-to) | 213-216 |
Number of pages | 4 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 652 |
Issue number | 5-6 |
DOIs | |
Publication status | Published - 6 Sept 2007 |
Externally published | Yes |
Funding
We are grateful for conversations and correspondence with L. Blanchet, H. Ray, C. Skordis and B. Whiting. This work was partially supported by NSF grant PHY-0244714 and by the Institute for Fundamental Theory at the University of Florida.
Funders | Funder number |
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Institute for Fundamental Theory at the University of Florida | |
National Science Foundation | PHY-0244714 |
Directorate for Mathematical and Physical Sciences | 0244714 |