Gamma-ray Burst 021201

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN notice #1719
  K. Hurley and T. Cline, on behalf of the Ulysses, HETE, Mars Odyssey, and KONUS GRB teams,
  I. Mitrofanov, D. Anfimov, A. Kozyrev, M. Litvak and A. Sanin, on behalf of the HEND/Odyssey GRB team,
  W. Boynton, C. Fellows, K. Harshman, C. Shinohara and R. Starr, on behalf of the GRS/Odyssey GRB team,
  E. Mazets and S. Golenetskii, on behalf of the Konus-Wind GRB team,
  G. Ricker, J-L Atteia, N. Kawai, D. Lamb, S. Woosley, J. Doty, R. Vanderspek, J. Villasenor, G. Crew, G. Monnelly, N. Butler, J.G. Jernigan, A. Levine, F. Martel, E. Morgan, G. Prigozhin, J. Braga, R. Manchanda, G. Pizzichini, Y. Shirasaki, C. Graziani, M. Matsuoka, T. Tamagawa, K. Torii, T. Sakamoto, A. Yoshida, E. Fenimore, M. Galassi, T. Tavenner, T. Donaghy, M. Boer, J-F Olive, and J-P Dezalay, on behalf of the HETE GRB team, and
  D. M. Smith, R. P. Lin, J. McTiernan, R. Schwartz, C. Wigger, W. Hajdas, and A. Zehnder, on behalf of the RHESSI GRB team, report:
  Ulysses, Mars Odyssey-HEND, RHESSI, HETE-FREGATE, and Konus-Wind observed this GRB at 19804 seconds. As observed by Ulysses, it had a duration of approximately 0.3 seconds, a 25-100 keV fluence of approximately 2E-07 erg/cm2, and a peak flux of approximately 8E-07 erg/cm2 s over 0.25 seconds.
  We have triangulated it a preliminary, 3 sigma error boxes with approximate area 9 square arcminutes whose coordinates are:

      RA(2000)                 DEC(2000)
  ERROR BOX CENTER:    8 h  7 m 46.09 s     21 o 14 '  17.73 "  (CENTER)
  ERROR BOX CORNER 1:  8 h  7 m 45.73 s     21 o 12 '  40.07 "  (CORNER)
  ERROR BOX CORNER 2:  8 h  7 m 56.62 s     21 o 11 '  40.15 "  (CORNER)
  ERROR BOX CORNER 3:  8 h  7 m 35.56 s     21 o 16 '  55.47 "  (CORNER)
  ERROR BOX CORNER 4:  8 h  7 m 46.46 s     21 o 15 '  55.39 "  (CORNER)
  

  A Chandra NRA-accepted target of opportunity observation of this error box is being requested.
  This error box may be improved slightly.
• GCN/BACODINE POSITION NOTICE
  

  
  TITLE:             GCN/IPN POSITION NOTICE
  NOTICE_DATE:       Tue 03 Dec 02 02:20:52 UT
  NOTICE_TYPE:       IPN Single Box
  IPN_NUMBER:        442
  GRB_DATE:          12609 TJD;   335 DOY;   02/12/01
  GRB_TIME:          19804.00 SOD {05:30:04.00} UT
  GRB_IPN_RA:        121.9420d {+08h 07m 46s} (J2000),
                     121.9847d {+08h 07m 56s} (current),
                     121.2090d {+08h 04m 50s} (1950)
  GRB_IPN_DEC:       +21.2382d {+21d 14' 17"} (J2000),
                     +21.2296d {+21d 13' 47"} (current),
                     +21.3840d {+21d 23' 02"} (1950)
  GRB_ERROR1_RA1:    121.9405d {+08h 07m 46s} (J2000)
  GRB_ERROR1_DEC1:    21.2111d {+21d 12' 40"} (J2000)
  GRB_ERROR1_RA2:    121.9859d {+08h 07m 57s} (J2000)
  GRB_ERROR1_DEC2:    21.1944d {+21d 11' 40"} (J2000)
  GRB_ERROR1_RA3:    121.8981d {+08h 07m 36s} (J2000)
  GRB_ERROR1_DEC3:    21.2820d {+21d 16' 55"} (J2000)
  GRB_ERROR1_RA4:    121.9435d {+08h 07m 46s} (J2000)
  GRB_ERROR1_DEC4:    21.2653d {+21d 15' 55"} (J2000)
  GRB_ERROR:         2.43 [arcmin radius of circumscribing circle, 3 sigma]
  GRB_BOX_AREA:      90 [sq.arcmin]
  GRB_PEAK_FLUX:     7.8e-07 [erg/cm2/sec in 25-100 keV] in a 0.25 sec interval
  GRB_FLUENCE:       2.0e-07 [erg/cm2 in 25-100 keV]
  GRB_DURATION:      0.3 [sec]
  SUN_POSTN:         247.13d {+16h 28m 32s}  -21.77d {-21d 46' 28"}
  SUN_DIST:          129.25 [deg]
  MOON_POSTN:        205.89d {+13h 43m 32s}   -7.03d {-07d 01' 50"}
  MOON_DIST:          86.91 [deg]
  GAL_COORDS:        201.17,25.87 [deg] galactic lon,lat of the burst
  ECL_COORDS:        119.55,1.02 [deg] ecliptic lon,lat of the burst
  COMMENTS:          IPN triangulation localization.  
  COMMENTS:          This is a preliminary, 3 sigma error box.  
  COMMENTS:          GCN message is being issued.  
   
  
  

• red DSS finding chart ps-file
  
  
• GCN notice #1720
  A. J. Castro-Tirado (IAA-CSIC and LAEFF-INTA), A. de Ugarte Postigo, T. J. Mateo Sanguino (CEDEA-INTA), M. J=E9linek, P. Kub=E1nek, R. Hudec (ASU), S. Vitek, P. P=E1ta (CVUT) and J. =C1. Bern=E1 (Univ. de Alicante) on behalf of the BOOTES team,
  report:
  "We have obtained several unfiltred exposures (45-s each) under good metereological conditions covering the short/hard GRB 021201 IPN error box (Hurley et al. GCN 1719). The images covered the period 05:28:23 - 05:32:12 UT 1 Dec 2002 (i.e. between 1.68-minutes before the trigger and 2.12-minutes after the trigger) with the very wide-field camera of BOOTES-1 ( http://www.laeff.esa.es/BOOTES).
  After a visual inspection of the IPN error box (Hurley et al., GCN 1719) in all frames, we do not find evidence of optical emission, in particular simultaneously to the burst itself, for which we have an image covering the time interval 05:29:55 -05:30:40 UT. Therefore we derive an upper limit of R =3D 10 for any optical counterpart simultaneous to this short/hard GRB.
  To our knowledge, this is the second short/hard GRB for which simultaneous images are available, following GRB 020531 (Castro-Tirado et al. 2002, GCN 1430). See also Castro-Tirado et al. 2002 (A&A 393, L55) regarding this issue."
  This message can be cited.
• GCN notice #1721
  M. Nysewander, J. Moran, L. Johnson, D. Moschler, and D. Reichart (University of North Carolina) report:
  We observed 100% of the small error box of the short burst GRB 021201 (GCN 1719) beginning at 8:15 UTC on December 3rd (2.1 days after the burst) with the Morehead Observatory 0.6m telescope. We integrated without filter for ~2700 seconds under relatively clear skies.
  Visual comparison with the DSS-2 (R band) images reveal no new objects to the limit of the DSS.
• GCN notice #1722
  D. A. Frail (NRAO), and E. Berger (Caltech) report on behalf of a larger collaboration:
  "We used the VLA to image the error box of the short/hard burst GRB021201 localized by the IPN (GCN #1719) at a frequency of 1.43 GHz. There is a 2 mJy source in the error box at J2000, r.a.=08:07:47.537, dec.=+21 14 54.53 which had been previously cataloged in September 1998 by the FIRST survey ( http://sundog.stsci.edu/top.html). There are no new sources to a 3-sigma level of 0.5 mJy.
  Observations at higher frequencies are planned when it stops snowing."
• GCN notice #1723
  A. Henden (USRA/USNO) reports on behalf of the USNO GRB team:
  We have acquired shallow BVRcIc all-sky photometry for a 20x20 arcmin field centered at the IPN coordinates for GRB021201 (Hurley et al., GCN 1719) with the USNOFS 1.0-m telescope on one photometric night. Stars brighter than V=13.0 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/grb021201.dat The astrometry in this file is based on linear plate solutions with respect to UCAC2. The external errors are less than 100mas.
  If an afterglow is discovered, we will extend this calibration with additional nights to ensure against a systematic zeropoint error, and to include U-band measures. You should check the dates on the .dat file prior to final publication to get the latest photometry.
• GCN notice #1741
  K. Hurley, T. Cline, M. Feroci, P. Li, F. Frontera, E. Mazets, S. Golenetskii, I. Mitrofanov, G. Ricker, and J.-L. Atteia, on behalf of the Chandra target of opportunity for IPN short bursts collaboration, report:
  Chandra observed the error box of the short/hard GRB021201 (GCN 1719) for approximately 21 ks starting at 23:10 on December 9. A very preliminary analysis indicates that about 26 sources are present in the Chandra field. They are listed in the table below. One of these sources (#10) is inside the IPN error box. A map has been posted at ssl.berkeley.edu/ipn3/021201. A second follow-up Chandra observation will take place in several weeks to determine whether this or any other source in the field displays fading behavior.

  SOURCE #        RA(2000)              DEC(2000)         NET_COUNTS  
  
       1       122.0995407104        21.3008174896        26.18750
       2       122.0711364746        21.2559471130        39.250
       3       122.0690231323        21.1490001678       182.750
       4       122.0568161011         21.102066040      1553.06250
       5       122.0377426147        21.1755084991        77.68750
       6       122.0145645142        21.2685337067        29.8750
       7       121.9966888428        21.1383686066        38.750
       8       121.9874267578        21.3674888611        28.43750
       9       121.9564666748        21.1419563293       139.93750
      10       121.9553070068        21.2090072632       105.18750
      11       121.9549407959        21.3561420441        50.43750
      12       121.9532623291        21.2970886230        40.06250
      13       121.9205551147        21.3233127594        29.93750
      14*      121.9204101562        21.3241481781        34.8750
      15       121.9017181396        21.1891117096        28.750
      16*      121.9007949829        21.1885643005        29.50
      17       121.8824768066        21.2981529236        54.0
      18       121.8699111938        21.1710834503       176.06250
      19       121.8655853271        21.2566776276        36.68750
      20       121.8629837036        21.2110004425        43.1250
      21       121.8587265015        21.1649875641        32.1250
      22       121.8439636230        21.1804847717        92.18750
      23       121.8304367065        21.3124256134        24.56250
      24       121.8092498779        21.2480392456        47.93750
      25       121.7484664917        21.2483577728        30.18750
      26       121.7267990112        21.1938285828        32.06250
      27       121.6778488159        21.4611721039        20.6250
      28       121.6126785278        21.2064838409        32.93750
  

  *These are probably duplicate detections of the preceding sources
• GCN notice #1743
  J. M. Castro Cer=F3n (ROA, San Fernando), J. Gorosabel and A. J. Castro-Tirado (IAA-CSIC, Granada) C. M. Guti=E9rrez and M. L=F3pez-Corredoira (IAC, La Laguna)
  report:
  "On Dec 4.16 UT we observed the field of the short /hard GRB 021201 (GCN 1719) with the 2.5-m Nordic=20 Optical Telescope (+ALFOSC) at the Observatorio del=20 Roque de los Muchachos, in order to monitor the=20 entire IPN error box. In the co-added image (5 x=20 900-s in the r' Sloan filter with a 2".8 seeing),=20 no optical transient is found when comparing to the DSS-2 (R-band). Particularly, a point-like optical=20 source with R about 20.5 is found at coordinates=20 RA(2000) =3D 08 07 49.35, Dec(2000) =3D +21 12 33.8=20 (+/- 0".5); this is within 2" of the Chandra=20 source # 10 reported to be inside the IPN error box=20 (GCN 1741). Such object is visible in the blue and=20 red DSS-2 charts as a very blue source that does=20 not seem to be related to the GRB 021201. Further=20 observations are planned."=20
  This message can be quoted.
• GCN notice #1746
  P. Garnavich and J. Quinn (University of Notre Dame)
  We observed the entire error box of the GRB 021201 burst (GCN 1719) with the NOAO WIYN telescope on 2002 Dec. 5.5 (UT). The 3x600s R-band images were taken in 1.2" seeing. We confirm the presence of a bright optical source near the Chandra x-ray source #10 (GCN 1741) identified by Castro Cer=F3n et al. (GCN 1743). The optical source is USNO-A2.0 1050.05586294 listed in the catalog at 08:07:49.350 +21:12:33.66 (J2000) and R=3D18.9. We estimate the brightness at R=3D20.4 using a zero point from a nearby Landolt standard star field. To search for fainter objects, we subtracted a PSF scaled to the peak of the USNO star and found no other sources brighter than R=3D23.3 within 4" of the Chandra #10 x-ray position.
  
• GCN notice #1760
  M. Nysewander, J. Moran, L. Johnson, D. Moschler, D. Reichart (University of North Carolina), and A. Henden (USRA/USNO) report on behalf of a larger collaboration:
  We observed 100% of the ~9 square arcminute error box of the short-duration burst GRB 021201 (GCN 1719) with the 0.6-meter Morehead Observatory telescope beginning 2.1 days after the burst (GCN 1721) and with the 1.0-meter USNO telescope beginning 2.9 days after the burst. Both observations were made without filter and the second observation goes significantly deeper than the first.
  Visual comparison of the first and second epoch images reveals no transient sources to the limiting magnitude of the first epoch image, which we measure to be Rc = 21.2 mag (3 sigma), 21.6 mag (2 sigma), and 22.4 mag (1 sigma) using the field calibration of Henden (GCN 1723).
  Three Chandra sources lie in the field of view of the first epoch image and 20 Chandra sources lie in the field of view of the second epoch image. Visual comparison of the first and second epoch images and the DSS-2 (Red) reveals no obvious transient sources.