Gamma-ray Burst 000519

On May 19, 2000 at 29885 UT Ulysses, BATSE, the BeppoSAX GRBM, and NEAR observed this burst.

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/IPN Notice for GRB000519

TITLE:          GCN/IPN/HUNTSVILLE LOCALIZATION
NOTICE_TYPE:    Updated (based on the BATSE-LOCBURST location)
NOTICE_DATE:    Fri May 19 20:56:19 GMT 2000
TRIGGER_NUM:    8111
GRB_DATE:       00/05/19
GRB_TIME:       08:18:07.73 UT
BACO_RA:        351.67d {+23h 26m 40s}   (J2000)
BACO_DEC:       -1.27d {-01d 16' 19"}
HUNT_RA:        347.32d {+23h 09m 17s}   (J2000)
HUNT_DEC:       4.64d {+04d 38' 18"}
HUNT_ERR:       2.15 [degees radius, statistical plus systematic]
B_H_DELTA:      7.33 [deg]
HUNT_SC_AZ:     26.67 [deg]
HUNT_SC_EL:     13.90 [deg]  {Zen_angle=76.10}
SUN_POSTN:      56.43d {+03h 45m 43s}   +19.86d {+19d 51' 40"}   (Current)
SUN_B_DIST:     66.83 [deg]
MOON_POSTN:     249.00d {+16h 35m 59s}   -18.42d {-18d 25' 27"}   (Current)
MOON_B_DIST:    101.60 [deg]
ANNULUS_RA:     309.0879d {+20h 36m 21s}   (J2000)
ANNULUS_DEC:    33.9409d {+33d 56' 27"}
ANNULUS_RADIUS: 47.702 [deg]
ANNULUS_WIDTH:  0.117 [deg]  (Total width)

This IPN localization is preliminary. The "total width" of the annulus was selected to include all known uncertainties and systematics. The final analysis will reduce this width. All follow-up queries should be addressed to Kevin Hurley (UC Berkeley, khurley@sunspot.ssl.berkeley.edu).
The center of the IPN annulus is tabulated below along the segment that intersects the Huntsville error circle. The Distance column is the sky-angle distance between the Huntville location and the sampled position on the arc segment. The position of maximum probability plus the 1-, 2-, & 3-sigma containment probabilities (statistical+systematic) are marked.
A detailed description of the format, content, and meaning of this document is given in the URL: http://gcn.gsfc.nasa.gov/gcn/ipn.html

     (J2000)
   RA       DEC       Distance

 343.926   -0.807     6.42   <=== +3-sigma probability
 343.975   -0.766     6.36
 344.024   -0.725     6.29
 344.073   -0.684     6.23
 344.122   -0.643     6.17
 344.171   -0.602     6.11
 344.220   -0.561     6.05
 344.268   -0.519     5.99
 344.317   -0.478     5.93
 344.366   -0.437     5.87
 344.414   -0.395     5.81
 344.463   -0.354     5.75
 344.512   -0.312     5.69
 344.560   -0.271     5.63
 344.609   -0.229     5.57
 344.657   -0.187     5.51
 344.705   -0.146     5.45
 344.754   -0.104     5.39
 344.802   -0.062     5.33
 344.851   -0.020     5.27
 344.899    0.022     5.21
 344.947    0.064     5.15
 344.995    0.106     5.09
 345.043    0.148     5.03
 345.092    0.190     4.98
 345.140    0.232     4.92
 345.188    0.275     4.86
 345.236    0.317     4.80
 345.284    0.359     4.74
 345.332    0.402     4.68
 345.380    0.444     4.62
 345.428    0.487     4.56
 345.476    0.530     4.50
 345.523    0.572     4.45
 345.571    0.615     4.39
 345.619    0.658     4.33
 345.667    0.701     4.27   <=== +2-sigma probability
 345.714    0.743     4.21
 345.762    0.786     4.16
 345.810    0.829     4.10
 345.857    0.872     4.04
 345.905    0.916     3.98
 345.952    0.959     3.93
 346.000    1.002     3.87
 346.047    1.045     3.81
 346.095    1.089     3.76
 346.142    1.132     3.70
 346.189    1.175     3.64
 346.237    1.219     3.59
 346.284    1.262     3.53
 346.331    1.306     3.48
 346.378    1.350     3.42
 346.425    1.393     3.37
 346.472    1.437     3.31
 346.520    1.481     3.26
 346.567    1.525     3.20
 346.614    1.569     3.15
 346.661    1.613     3.10
 346.708    1.657     3.05
 346.754    1.701     2.99
 346.801    1.745     2.94
 346.848    1.789     2.89
 346.895    1.833     2.84
 346.942    1.878     2.79
 346.988    1.922     2.74
 347.035    1.967     2.69
 347.082    2.011     2.64
 347.128    2.056     2.59
 347.175    2.100     2.54
 347.222    2.145     2.50
 347.268    2.189     2.45
 347.315    2.234     2.41
 347.361    2.279     2.36
 347.407    2.324     2.32
 347.454    2.369     2.28
 347.500    2.414     2.23
 347.546    2.459     2.19
 347.593    2.504     2.15
 347.639    2.549     2.12   <=== +1-sigma probability
 347.685    2.594     2.08
 347.731    2.639     2.04
 347.777    2.684     2.01
 347.824    2.730     1.98
 347.870    2.775     1.94
 347.916    2.821     1.91
 347.962    2.866     1.89
 348.008    2.912     1.86
 348.053    2.957     1.84
 348.099    3.003     1.81
 348.145    3.048     1.79
 348.191    3.094     1.77
 348.237    3.140     1.76
 348.283    3.186     1.74
 348.328    3.232     1.73
 348.374    3.278     1.72
 348.420    3.324     1.71
 348.465    3.370     1.71
 348.511    3.416     1.71
 348.556    3.462     1.71
 348.556    3.462     1.71   <=== Max probability
 348.556    3.462     1.71
 348.602    3.508     1.71
 348.647    3.554     1.71
 348.693    3.601     1.72
 348.738    3.647     1.73
 348.783    3.694     1.74
 348.829    3.740     1.75
 348.874    3.787     1.77
 348.919    3.833     1.79
 348.964    3.880     1.81
 349.010    3.927     1.83
 349.055    3.973     1.85
 349.100    4.020     1.88
 349.145    4.067     1.91
 349.190    4.114     1.94
 349.235    4.161     1.97
 349.280    4.208     2.00
 349.325    4.255     2.04
 349.370    4.302     2.07
 349.415    4.349     2.11
 349.459    4.396     2.15
 349.504    4.444     2.19   <=== -1-sigma probability
 349.549    4.491     2.23
 349.594    4.538     2.27
 349.638    4.586     2.31
 349.683    4.633     2.36
 349.728    4.681     2.40
 349.772    4.728     2.45
 349.817    4.776     2.49
 349.861    4.824     2.54
 349.906    4.871     2.59
 349.950    4.919     2.64
 349.995    4.967     2.69
 350.039    5.015     2.74
 350.083    5.063     2.79
 350.128    5.111     2.84
 350.172    5.159     2.89
 350.216    5.207     2.94
 350.260    5.255     2.99
 350.304    5.303     3.05
 350.349    5.351     3.10
 350.393    5.400     3.15
 350.437    5.448     3.21
 350.481    5.497     3.26
 350.525    5.545     3.32
 350.569    5.593     3.37
 350.613    5.642     3.43
 350.657    5.691     3.49
 350.700    5.739     3.54
 350.744    5.788     3.60
 350.788    5.837     3.65
 350.832    5.886     3.71
 350.875    5.934     3.77
 350.919    5.983     3.83
 350.963    6.032     3.88
 351.006    6.081     3.94
 351.050    6.130     4.00
 351.093    6.180     4.06
 351.137    6.229     4.12
 351.180    6.278     4.18
 351.224    6.327     4.24
 351.267    6.377     4.30
 351.311    6.426     4.35   <=== -2-sigma probability
 351.354    6.475     4.41
 351.397    6.525     4.47
 351.441    6.574     4.53
 351.484    6.624     4.59
 351.527    6.674     4.65
 351.570    6.723     4.71
 351.613    6.773     4.77
 351.656    6.823     4.84
 351.699    6.873     4.90
 351.742    6.923     4.96
 351.785    6.972     5.02
 351.828    7.022     5.08
 351.871    7.073     5.14
 351.914    7.123     5.20
 351.957    7.173     5.26
 352.000    7.223     5.32
 352.043    7.273     5.38
 352.085    7.324     5.45
 352.128    7.374     5.51
 352.171    7.424     5.57
 352.213    7.475     5.63
 352.256    7.525     5.69
 352.299    7.576     5.75
 352.341    7.626     5.82
 352.384    7.677     5.88
 352.426    7.728     5.94
 352.468    7.779     6.00
 352.511    7.829     6.07
 352.553    7.880     6.13
 352.596    7.931     6.19
 352.638    7.982     6.25
 352.680    8.033     6.32
 352.722    8.084     6.38
 352.765    8.135     6.44
 352.807    8.186     6.50   <=== -3-sigma probability

GCN notice #672
K. Hurley, on behalf of the Ulysses GRB Team, S. Barthelmy, on behalf of the GCN GRB team, F. Frontera, C. Guidorzi and E. Montanari, on behalf of the BeppoSAX GRBM team, and T. Cline, on behalf of the NEAR GRB team, report:
Ulysses, BATSE, the BeppoSAX GRBM, and NEAR observed this burst at 29885 s UT. (BATSE Trigger #8111). As observed by Ulysses, it had a duration ~15 s, and a 25-100 keV fluence 3x10^-6 erg/cm^2. We have triangulated it to a preliminary 100 sq. arcmin. error box whose 3 sigma coordinates are:
```
    RA(2000)                 DEC(2000)
 23 h  4 m 38.55 s      1 o 10 '  16.67 "  (CENTER)
 23 h  5 m  9.33 s      1 o 12 '  58.16 "  (CORNER)
 23 h  4 m 25.46 s      1 o  2 '  54.25 "  (CORNER)
 23 h  4 m 51.59 s      1 o 17 '  39.60 "  (CORNER)
 23 h  4 m  7.73 s      1 o  7 '  35.67 "  (CORNER)
```
This error box can be refined.
GCN notice #673
A. Henden (USRA/USNO) reports on behalf of the USNO GRB team:
We have acquired preliminary BVRcIc all-sky photometry for an 11x11 arcmin field that covers the majority of the error box for GRB000519 with the USNOFS 1.0-m telescope on one photometric night. Stars brighter than V=13 are saturated and should be used with care. We have placed the photometric data on our anonymous ftp site: ftp://ftp.nofs.navy.mil/pub/outgoing/aah/grb/grb000519.dat. The current photometry has a potential external zero-point error of about two percent. The astrometry in this file is based on linear plate solutions with respect to USNO-A2.0. The internal errors are less than 100mas. Further calibration of this field will be performed if an optical afterglow is identified.
GCN notice #679
B. L. Jensen, H. Pedersen, J. Hjorth (U. of Copenhagen), J. Gorosabel (DSRI, Copenhagen), T. H. Dall, J. P. U. Fynbo (U. of Aarhus) and S. O'Toole (U. of Sydney), report on behalf of a larger European collaboration:
We have obtained images covering about 95% of the 100 sq. arcmin error box reported by Hurley et al. (GCN #672) with the 2.56-m Nordic Optical Telescope (+ALFOSC, mosaic of 5 pointings) on La Palma, and the 1.54-m Danish Telescope (+DFOSC) at La Silla, as follows:
```
Telescope   Date                       Filter/Exp     FWHM

NOT         2000 May 20.17 UT (t+20h)  R: 180-360 s   1.5"
DK-1.54m    2000 May 20.39 UT (t+25h)  R: 4x240 s     1.7"
DK-1.54m    2000 May 25.37 UT (t+6d)   R: 3x300 s     3.5"
```
Observations were hampered by moonlight. Using the photometry provided by Henden (GCN #673), we obtain limiting magnitudes of R~20.8 for the NOT, and R~21.0 for the DK-1.5m May 20 image.
The exposures have been compared internally, and with the DSS-II (red) exposure. No candidate counterpart was found.
GCN notice #698
Stephen Holland, Johan Fynbo, Bjarne Thomsen (University of Aarhus), Michael Andersen (University of Oulu), Gunnlaugur Bjornsson (University of Iceland), Jens Hjorth (University of Copenhagen), Andreas Jaunsen (University of Oslo), Priya Natarajan (Univeristy of Cambridge, & Yale), and Nial Tanvir (University of Hertfordshire)
We have initiated a survey of the host galaxies of gamma-ray bursts (GRBs) using the Space Telescope Imaging Spectrograph on the Hubble Space Telescope. The data will consist of deep images of the host galaxies of eleven GRBs taken at least one year after the GRB occurred. We have waived the normal one-year proprietary period for this data, and we will make drizzled images available to the astronomical community. The web site for the Survey of the Host Galaxies of Gamma-Ray Bursts is http://www.ifa.au.dk/~hst/grb_hosts/index.html.
We have obtained 8983 seconds of STIS images taken with the 50CCD (clear) aperture of GRB 980519. A combined image is now available at http://www.ifa.au.dk/~hst/grb_hosts/data/index.html. This data was taken approximately 750 days after the burst. We find two small galaxies within approximately 1.5 arcseconds of the GRB. The bright galaxy has an AB magnitude of 27.0 +/- 0.1 in the STIS 50CCD (clear) aperture while the fainter galaxy, which we presume to be the host, has an AB magnitude of 28.0 +/- 0.3. The total flux from both objects agrees with the Kron-Cousins R-band magnitudes measured by Hjorth et al. (1999, A&AS, 138, 461), Sokolov et al. (1998, GCNC 148), and Bloom et al. (1998, GCNC 149) if the combined colour of the two galaxies is V-R = 0.8 +/- 0.4. The GRB occurred approximately 0.7 arcseconds to the north of the centre of the faint galaxy. The bright galaxy shows some signs of a barred spiral structure. The central regions have a full-width at half-maximum (after correcting for the point spread function) of ~0.06 arcseconds. The faint galaxy is elongated with an ellipticity of ~0.3 and a major axis of ~1 arcsecond.

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