Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-12-29
Astronomy and Astrophysics
Astrophysics
28 pages, 15 Postscript figures
Scientific paper
Collective Shapiro Phase Shift on the period of the pulsars due to a dark object (a passing MACHO or a planet) along the line-of-sight of one or more pulsar is a formidable gravitational tool to discover dark matter.We already noted that the presence of a few negative PSRs period, possibly due to such a Shapiro delay, is roughly consistent with independent estimates of MACHOs observed by microlensing in our Galaxy. Here we update our study and suggest to verify and to calibrate the Shapiro phase delay to observe on ecliptic main known planetary and solar gravitational fields. Once the test is probed we propose to use, in a collective way, a subsample of PSRs on the ecliptic plane to monitor our solar system for discovering any heavy unknown object, either dark Macho or planets. The importance of such unknown possible planetary components and their eventual near encounter with Earth in the far past (or future) should be not neglected : the same life evolution (or extinction) might be marked by such a rare event.
Conversano Roberto
Fargion Daniele
No associations
LandOfFree
Gravitational Shapiro Telescope on the PSR's period to discover Dark Planets and Machos 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 Gravitational Shapiro Telescope on the PSR's period to discover Dark Planets and Machos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravitational Shapiro Telescope on the PSR's period to discover Dark Planets and Machos will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-407201