Swift - 47 Tuc
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47 Tucanae: Swift-XRT monitoring results
Chandra 0.3-6 keV image.
Numerous X-ray sources are contained within the half-mass radius indicated by the large circle
(from Heinke et al. 2005)
Observation schedule
Analysis results (place the mouse on a plot to see the caption):
LATEST XRT IMAGE:
LATEST XRT SPECTRUM:
![Left: full XRT 0.3-10 keV image, smoothed with a 1.5 pixel Gaussian, in Galactic coordinates. Red annulus shows the background extraction region, and the green thick circle the cluster half-light radius.
Right: XRT 0.3-10 keV image, smoothed with a 1.5 pixel Gaussian, in equatorial coordinates, centered on the optical center and zoomed to show the half-light radius (thick green circle). The thin inner circle shows the core radius, and the green dots show the known faint X-ray sources from deep Chandra observations (Heinke05).
Observation ID, date and exposure are noted, and the color scale shows the image counts.
Background regions: annuli with inner and outer radii equal to 1.5 a 2 times the half-light radius of the cluster, respectively (i.e., including regions between ~1 and ~6 arcmin from the center).](47Tuc/gifs/latest_image.gif)
![XRT 0.3-10 keV Light curve from the half-light radius, corrected for background, in 200 s time bins.](47Tuc/gifs/latest_lc.gif)
LATEST XRT LIGHT CURVE
SPECTRAL PARAMETERS EVOLUTION
Previous observations:
00049754001 (mode: pc exp,s: 1037 MJD-OBS= 56334.11)
00049754002 (mode: pc exp,s: 1068 MJD-OBS= 56411.98)
00049754003 (mode: pc exp,s: 759 MJD-OBS= 56422.06)
00049754004 (mode: pc exp,s: 399 MJD-OBS= 56475.67)
00049754006 (mode: pc exp,s: 202 MJD-OBS= 56511.66)
00049754007 (mode: pc exp,s: 3616 MJD-OBS= 56514.12)
00049754008 (mode: pc exp,s: 1628 MJD-OBS= 56515.93)
00049754009 (mode: pc exp,s: 2275 MJD-OBS= 56517.20)
00049754010 (mode: pc exp,s: 581 MJD-OBS= 56518.19)
00049754011 (mode: pc exp,s: 4545 MJD-OBS= 56521.72)
00049754012 (mode: pc exp,s: 3261 MJD-OBS= 56523.20)
00049754013 (mode: pc exp,s: 943 MJD-OBS= 56526.80)
00049754014 (mode: pc exp,s: 1281 MJD-OBS= 56528.07)
00049754016 (mode: pc exp,s: 576 MJD-OBS= 56538.88)
00049754017 (mode: pc exp,s: 1803 MJD-OBS= 56539.40)
00049754018 (mode: pc exp,s: 1433 MJD-OBS= 56546.27)
00049754019 (mode: pc exp,s: 4410 MJD-OBS= 56564.12)
00049754020 (mode: pc exp,s: 464 MJD-OBS= 56573.06)
00049754022 (mode: pc exp,s: 404 MJD-OBS= 56602.13)
00049754023 (mode: pc exp,s: 536 MJD-OBS= 56624.78)
00084119001 (mode: pc exp,s: 1783 MJD-OBS= 56965.26)
00084119002 (mode: pc exp,s: 4192 MJD-OBS= 56978.67)
00084119003 (mode: pc exp,s: 3963 MJD-OBS= 56990.58)
00084119004 (mode: pc exp,s: 4133 MJD-OBS= 57002.23)
00084119005 (mode: pc exp,s: 3830 MJD-OBS= 57014.15)
00084119006 (mode: pc exp,s: 3641 MJD-OBS= 57029.28)
00084119007 (mode: pc exp,s: 3064 MJD-OBS= 57038.19)
00084119008 (mode: pc exp,s: 3311 MJD-OBS= 57050.43)
00084119009 (mode: pc exp,s: 4120 MJD-OBS= 57062.08)
00084119010 (mode: pc exp,s: 3795 MJD-OBS= 57086.39)
00084119011 (mode: pc exp,s: 3990 MJD-OBS= 57098.22)
00084119012 (mode: pc exp,s: 3765 MJD-OBS= 57110.00)
00084119013 (mode: pc exp,s: 3808 MJD-OBS= 57122.03)
00084119014 (mode: pc exp,s: 3550 MJD-OBS= 57134.44)
00084119015 (mode: pc exp,s: 584 MJD-OBS= 57373.11)
00084119016 (mode: pc exp,s: 6907 MJD-OBS= 57373.30)
00084119017 (mode: pc exp,s: 3448 MJD-OBS= 57373.72)
00084119018 (mode: pc exp,s: 894 MJD-OBS= 57390.75)
00084119019 (mode: pc exp,s: 4734 MJD-OBS= 57390.81)
00084119020 (mode: pc exp,s: 976 MJD-OBS= 57391.21)
00084119021 (mode: pc exp,s: 3596 MJD-OBS= 57401.24)
00084119022 (mode: pc exp,s: 1770 MJD-OBS= 57416.07)
00084119023 (mode: pc exp,s: 2324 MJD-OBS= 57421.31)
00084119024 (mode: pc exp,s: 1890 MJD-OBS= 57430.08)
00084119025 (mode: pc exp,s: 3403 MJD-OBS= 57444.19)
00084119026 (mode: pc exp,s: 3773 MJD-OBS= 57459.21)
00084119027 (mode: pc exp,s: 786 MJD-OBS= 57472.82)
00084119028 (mode: pc exp,s: 2347 MJD-OBS= 57477.01)
00084119029 (mode: pc exp,s: 3283 MJD-OBS= 57494.11)
00084119030 (mode: pc exp,s: 4093 MJD-OBS= 57503.01)
00084119031 (mode: pc exp,s: 2949 MJD-OBS= 57513.05)
00084119032 (mode: pc exp,s: 3221 MJD-OBS= 57528.33)
00084119033 (mode: pc exp,s: 4000 MJD-OBS= 57548.14)
00084119034 (mode: pc exp,s: 3775 MJD-OBS= 57556.92)
00084119035 (mode: pc exp,s: 2469 MJD-OBS= 57570.46)
00084119036 (mode: pc exp,s: 1286 MJD-OBS= 57576.63)
00084119037 (mode: pc exp,s: 3775 MJD-OBS= 57762.56)
00084119038 (mode: pc exp,s: 2956 MJD-OBS= 57777.65)
00084119040 (mode: pc exp,s: 781 MJD-OBS= 57785.93)
00084119042 (mode: pc exp,s: 467 MJD-OBS= 57792.24)
00084119043 (mode: pc exp,s: 1630 MJD-OBS= 57810.21)
00084119044 (mode: pc exp,s: 859 MJD-OBS= 57813.40)
00084119045 (mode: pc exp,s: 694 MJD-OBS= 57826.02)
00084119046 (mode: pc exp,s: 3159 MJD-OBS= 57828.72)
00084119047 (mode: pc exp,s: 1568 MJD-OBS= 57843.80)
00084119048 (mode: pc exp,s: 3718 MJD-OBS= 57858.18)
If these data have been useful to you please include the following acknowledgement:
"This research has made use of the Swift/XRT Globular Cluster Monitoring page (http://research.iac.es/proyecto/SwiftGloClu) maintained by M. Linares & J. Chenevez."
We thank the Swift team for having made these observations possible ![](icons/Swift_logo.jpg)
We acknowledge support from the COST Action MP1304 "NewCompStar"
![](icons/logo_cost.png)
Manu LINARES
&
Jérôme CHENEVEZ ![](icons/DTU_logo.jpg)
July 2015
47 Tucanae
M 28
M 62
Terzan 5
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