Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-07-03
Mon.Not.Roy.Astron.Soc. 337 (2002) 41
Astronomy and Astrophysics
Astrophysics
accepted by MNRAS
Scientific paper
10.1046/j.1365-8711.2002.05776.x
We present observations of 8 Galactic Bulge microlensing events taken with the 1.0m JKT on La Palma during 2000 June and July. The JKT observing schedule was optimized using a prioritizing algorithm to automatically update the target list. For most of these events we have sampled the lightcurves at times where no information was available from the OGLE alert team. We assume a point-source point-lens (PSPL) model and perform a maximum likelihood fit to both our data and the OGLE data to constrain the event parameters of the fit. We then refit the data assuming a binary lens and proceed to calculate the probability of detecting planets with mass ratio $q=10^{-3}$. We have seen no clear signatures of planetary deviations on any of the 8 events and we quantify constraints on the presence of planetary companions to the lensing stars. For two well observed events, 2000BUL31 and 2000BUL33, our detection probabilities peak at $\sim$30% and $\sim$20% respectively for $q=10^{-3}$ and $a \sim R_{E}$ for a $\Delta\chi^2$ threshold value of 60.
Alvarez Javier Mendez
Batcheldor Dan
Carson Richard
Graham Alister W.
Horne Keith
No associations
LandOfFree
Constraints on Jupiters from observations of Galactic Bulge microlensing events during 2000 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 Constraints on Jupiters from observations of Galactic Bulge microlensing events during 2000, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraints on Jupiters from observations of Galactic Bulge microlensing events during 2000 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-525897