XROM: OGLE REAL TIME MONITORING OF X-RAY VARIABLES



X-Ray variables OGLE Monitoring (XROM) system is a new OGLE real time data analysis utility designed to provide real time photometry of optical counterparts of X-ray sources located in the fields observed regularly by the OGLE-III Survey (SMC, LMC, Galactic bulge).

The list of monitored objects can be easily extended. Input from the astronomical community is most welcome. The photometry is updated regularly, after every clear night.

The photometric data are taken in the I-band. They come from provisional image reduction obtained in almost real time at the telescope and are only roughly calibrated. For calibrated mean magnitudes of presented objects we refer to the OGLE-III Photometric Maps (e.g. Udalski et al. 2008, Acta Astron., 58, 89). However, please note that the object numbering in the final OGLE-III photometric databases is different than in presented here provisional photometry, so the cross-identification must be done according to RA/DEC coordinates.


Photometric data presented here can also be found on OGLE Anonymous FTP Archive.


If you have any questions or comments, send us a message.


The OGLE XROM photometry is provided here for information purposes only to facilitate the community monitoring the X-ray optical counterparts and follow up observations. Please contact us if you want to use the data for publication. We may require to be co-authors when our photometry is important for analysis.

When referring to the OGLE XROM system, please cite the paper by Udalski, 2008, Acta Astron., 58, 187 and provide the WWW address of the XROM system or the OGLE WWW home page.


The following table contains the current list of monitored objects.


Name Field Star No RA (J2000) Dec (J2000)
RX-J0513.9-6951 LMC112.2 48890 5:13:50.88 -69:51:47.6
RX-J0516.0-6916 LMC100.7 52359 5:16:00.03 -69:16:08.4
RX-J0520.5-6932 LMC100.1 14805 5:20:29.97 -69:31:55.8
XMMU-J054134.7-682550 LMC182.5 6 5:41:34.36 -68:25:48.2
CAL-83 LMC182.5 11204 5:43:34.22 -68:22:22.0
RX-J0544.1-7100 LMC186.6 38 5:44:05.14 -71:00:49.7
SXP0.92 SMC125.3 19461 0:45:35.28 -73:19:02.9
SXP2.37 SMC107.5 25 0:54:33.47 -73:41:01.1
SXP2.763 SMC109.2 5 0:59:12.74 -71:38:44.8
SXP7.78 SMC101.3 33277 0:52:05.61 -72:26:03.9
SXP8.80 SMC101.3 4737 0:51:53.12 -72:31:48.3
SXP9.13 SMC100.7 63223 0:49:13.63 -73:11:37.4
SXP15.3 SMC100.1 48026 0:52:13.99 -73:19:18.3
SXP18.3 SMC101.8 19552 0:49:11.45 -72:49:37.1
SXP22.07 SMC116.1 3322 1:17:40.18 -73:30:50.5
SXP25.5 SMC100.7 54315 0:48:14.14 -73:10:03.4
SXP31.0 SMC116.6 33 1:11:08.53 -73:16:46.0
SXP34.08 SMC108.7 24657 0:55:28.46 -72:10:56.5
SXP46.6 SMC108.8 30 0:53:55.28 -72:26:45.1
SXP59.0 SMC105.5 35420 0:54:56.16 -72:26:47.6
SXP74.7 SMC100.5 55158 0:49:03.36 -72:50:52.0
SXP82.4 SMC101.2 12997 0:52:08.94 -72:38:02.9
SXP91.1 SMC102.1 32 0:50:56.99 -72:13:34.2
SXP101 SMC106.7 15343 0:57:27.03 -73:25:19.0
SXP138 SMC101.3 38781 0:53:23.85 -72:27:15.1
SXP140 SMC108.8 35838 0:56:05.53 -72:21:59.2
SXP152.1 SMC108.3 36 0:57:50.38 -72:07:55.9
SXP169.3 SMC102.2 13410 0:52:55.28 -71:58:06.0
SXP172 SMC100.2 44100 0:51:52.01 -73:10:33.7
SXP202 SMC108.1 4929 0:59:21.03 -72:23:17.0
SXP202B SMC105.3 29894 0:59:28.66 -72:37:03.9
SXP264 SMC100.7 45007 0:47:23.36 -73:12:26.9
SXP280.4 SMC108.3 16091 0:57:49.58 -72:02:35.7
SXP293 SMC105.4 22335 0:58:12.58 -72:30:48.4
SXP304 SMC108.3 12190 1:01:02.88 -72:06:58.7
SXP323 SMC100.2 48 0:50:44.71 -73:16:05.0
SXP327 SMC101.4 25097 0:52:52.21 -72:17:14.8
SXP342 SMC108.8 33 0:54:03.84 -72:26:32.9
SXP455A SMC108.2 34801 1:01:20.65 -72:11:18.6
SXP455B SMC113.7 18374 1:01:20.64 -72:11:18.6
SXP504 SMC105.7 36877 0:54:55.87 -72:45:10.7
SXP565 SMC108.1 19293 0:57:35.99 -72:19:33.7
SXP645 SMC105.5 35415 0:55:35.14 -72:29:06.5
SXP701 SMC105.6 36015 0:55:18.43 -72:38:51.8
SXP726 SMC113.3 10946 1:05:55.22 -72:03:50.3
SXP756 SMC100.8 22903 0:49:42.02 -73:23:14.2
SXP893 SMC100.7 63151 0:49:29.81 -73:10:58.0
SXP967 SMC114.7 39 1:02:06.66 -71:41:15.9
SXP1323 SMC113.6 27699 1:03:37.50 -72:01:32.9
RX-J0052.1-7319 SMC100.1 48068 0:52:15.39 -73:19:15.0
MA93-798 SMC108.8 6254 0:54:46.37 -72:25:22.6
OGLE-SMC-SC5-180008 SMC100.1 30389 0:50:48.00 -73:18:17.6
SXP0.09 SMC128.4 118 0:42:35.40 -73:40:34.2
AZV285 SMC110.5 5 1:01:55.78 -72:32:36.0

Andrzej Udalski

Warsaw University Observatory

Warsaw, Poland

Last updated on Tue May 5 15:59:58 CEST 2009