Index of /ogle/ogle4/microlensing_maps

[ICO]NameLast modifiedSizeDescription
[PARENTDIR]Parent Directory  -  
[TXT]README2019-09-19 12:55 2.6K 
[ ]eff.tar.gz2019-06-03 07:50 15K 
[DIR]eff/2019-06-03 07:50 -  
[TXT]get_OGLE_field.py2019-06-03 07:50 6.2K 
[ ]phot.tar.gz2019-05-26 10:57 48M 
[DIR]phot/2019-05-26 09:18 -  
[TXT]table3.dat2020-06-30 00:43 1.5M 
[TXT]table5.dat2019-06-03 07:50 256K 
[TXT]table6.dat2019-06-03 07:50 7.2K 
[TXT]table7.dat2019-09-19 12:52 10K 
========================================================================
  Microlensing optical depth and event rate toward the Galactic bulge
                from eight years of OGLE-IV observations

  P. Mroz, A. Udalski, M. K. Szymanski, I. Soszynski, L. Wyrzykowski,
   P. Pietrukowicz, S. Kozlowski, R. Poleski, J. Skowron, K. Ulaczyk,
                       K. Rybicki, and P. Iwanek

========================================================================

pmroz@astrouw.edu.pl

The directory structure is as follows:

README            - this file

table3.dat        - electronic version of Table 3 (best-fitting 
                    parameters of the analyzed microlensing events)
                    
table5.dat        - electronic version of Table 5 (surface density
                    of stars in OGLE-IV subfields)
                    
table6.dat        - electronic version of Table 6 (basic information
                    about analyzed fields)

table7.dat        - electronic version of Table 7 (microlensing optical
                    depths and event rates in OGLE-IV fields, averaged
                    over sources brighter than I_s = 21)

phot/             - calibrated I-band photometry of individual events
phot.tar.gz       - gzipped phot/ directory

eff/              - event detection efficiencies in individual fields
eff.tar.gz        - gzipped eff/ directory

get_OGLE_field.py - useful Python scripts that return the Equatorial and 
                    Galactic coordinates of vertices of OGLE-IV fields
                    and plot OGLE fields/subfields

Format of the photometry files:
------------------------------------------------------------------------
 Bytes  Format Units   Description
------------------------------------------------------------------------
  1- 13 F13.5  HJD     Heliocentric Julian Date
 15- 20 F6.3   mag     I magnitude
 22- 26 F5.3   mag     Magnitude error
------------------------------------------------------------------------

The I-band photometry is calibrated to the standard system. 
The uncertainties were corrected using Skowron et al. (2016)'s 
prescriptions.

Format of the detection efficiency files:
------------------------------------------------------------------------
 Bytes  Format Units   Description
------------------------------------------------------------------------
  1-  5 F5.3   ---     Minimal log(t_E)
  7- 11 F5.3   ---     Maximal log(t_E)
 13- 20 F8.6   ---     Detection efficiency
------------------------------------------------------------------------

Updates:

2019-09-19  Event rates per unit area were added to Table 7 to match
            the accepted version of the paper.