Possible astrophysical signatures of scalar fields

Details Possible astrophysical signatures of scalar fields Possible astrophysical signatures of scalar fields

Mar 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000cqgra..17.1455m&link_type=abstract

Classical and Quantum Gravity, Volume 17, Issue 6, pp. 1455-1465 (2000).

Other

2

Scientific paper

An exact, axially symmetric solution for gravity minimally coupled to a scalar field is employed to calculate several effects that might be interesting for astrophysical detection of scalar fields. It is found that, as the ratio Qs /m of the scalar charge to the mass parameter of the metric increases, the difference with general relativity predictions becomes larger, which can be used to set an upper limit for this ratio, both from the weak- and the strong-field regimes. For the latter, we reanalysed the strong light deflection near a compact star, previously studied in the context of general relativity, for which we found a discrepancy between a few and 80%, depending on the value of Qs /m ; although this effect is very difficult to observe even for general relativity, it would put a bound on Qs from a strong-field situation. Brief mention is made of what these effects look like in other scalar-tensor theories of gravity.

Affiliated with

Also associated with

No associations

Rating

Possible astrophysical signatures of scalar fields does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Possible astrophysical signatures of scalar fields, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Possible astrophysical signatures of scalar fields will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1429782