Astrometry for Determining the MACHO Mass and Trajectory

Details Astrometry for Determining the MACHO Mass and Trajectory Astrometry for Determining the MACHO Mass and Trajectory

Sep 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aj....110.1427m&link_type=abstract

Astronomical Journal v.110, p.1427

Astronomy and Astrophysics

Astronomy

65

Gravitational Lensing, Dense Matter, Astrometry

Scientific paper

We show that a combination of the photometric and astrometric observations of gravitational microlensing enables us to determine the mass and trajectory of the invisible MACHO. The measurement of separation of two images during the event determines the proper motion and the trigonometric parallax of the source and lens, which constitute two basic parameters for the problem at issue. Furthermore, including the effect of the annual parallax to be observed by the terrestrial observer, we find a better fit of the present model to the recent photometric observations, especially those near to the peak (Alcock et al., Nature, 365, 621 1993), and thereby can trace explicitly the trajectories of the MACHO and source images on the celestial sphere.

Affiliated with

Also associated with

No associations

Rating

Astrometry for Determining the MACHO Mass and Trajectory 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 Astrometry for Determining the MACHO Mass and Trajectory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Astrometry for Determining the MACHO Mass and Trajectory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-823078