Gamma-ray Burst 140209A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN/BACODINE POSITION NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Sun 09 Feb 14 07:31:19 UT
  NOTICE_TYPE:     Swift-BAT GRB Position
  TRIGGER_NUM:     586071,   Seg_Num: 0
  GRB_RA:           81.335d {+05h 25m 20s} (J2000),
                    81.565d {+05h 26m 16s} (current),
                    80.519d {+05h 22m 05s} (1950)
  GRB_DEC:         +32.477d {+32d 28' 37"} (J2000),
                   +32.489d {+32d 29' 19"} (current),
                   +32.433d {+32d 25' 59"} (1950)
  GRB_ERROR:       3.00 [arcmin radius, statistical only]
  GRB_INTEN:       1709 [cnts]    Image_Peak=137 [image_cnts]
  TRIGGER_DUR:     0.512 [sec] 
  TRIGGER_INDEX:   124     E_range: 25-100 keV
  BKG_INTEN:       18038 [cnts]
  BKG_TIME:        27044.37 SOD {07:30:44.37} UT
  BKG_DUR:         8 [sec]
  GRB_DATE:        16697 TJD;    40 DOY;   14/02/09
  GRB_TIME:        27057.88 SOD {07:30:57.88} UT
  GRB_PHI:         -159.53 [deg]
  GRB_THETA:        44.86 [deg]
  SOLN_STATUS:     0x20000003
  RATE_SIGNIF:     15.77 [sigma]
  IMAGE_SIGNIF:    9.74 [sigma]
  MERIT_PARAMS:     +1  +0  +0  -1  +2  +0  -5  +1 +52  +0 
  SUN_POSTN:       322.87d {+21h 31m 28s}  -14.67d {-14d 39' 55"}
  SUN_DIST:        121.86 [deg]   Sun_angle= -7.9 [hr] (East of Sun)
  MOON_POSTN:       77.85d {+05h 11m 23s}  +19.28d {+19d 16' 46"}
  MOON_DIST:        13.62 [deg]
  MOON_ILLUM:      74 [%]
  GAL_COORDS:      174.67, -1.75 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:       82.60,  9.26 [deg] ecliptic lon,lat of the burst (or transient)
  COMMENTS:        SWIFT-BAT GRB Coordinates.  
  COMMENTS:        This is a rate trigger.  
  COMMENTS:        A point_source was found.  
  COMMENTS:        This does not match any source in the on-board catalog.  
  COMMENTS:        This does not match any source in the ground catalog.  
  COMMENTS:        This is a GRB.  
  COMMENTS:        This trigger occurred at longitude,latitude = 287.19,8.87 [deg].  
  COMMENTS:           
  COMMENTS:        NOTE: This BAT event is temporally(1.0<100sec) coincident with the FERMI_GBM event (trignum=413623861).  
  

• red DSS finding chart ps-file
  
  
• GCN NOTICE
  

  TITLE:           GCN/FERMI NOTICE
  NOTICE_DATE:     Sun 09 Feb 14 07:31:25 UT
  NOTICE_TYPE:     Fermi-GBM Flight Position
  RECORD_NUM:      48
  TRIGGER_NUM:     413623861
  GRB_RA:           83.533d {+05h 34m 08s} (J2000),
                    83.778d {+05h 35m 07s} (current),
                    82.668d {+05h 30m 40s} (1950)
  GRB_DEC:         +39.183d {+39d 10' 60"} (J2000),
                   +39.192d {+39d 11' 31"} (current),
                   +39.150d {+39d 08' 59"} (1950)
  GRB_ERROR:       3.67 [deg radius, statistical plus systematic]
  GRB_INTEN:       2477 [cnts/sec]
  DATA_SIGNIF:     42.20 [sigma]
  INTEG_TIME:      0.128 [sec]
  GRB_DATE:        16697 TJD;    40 DOY;   14/02/09
  GRB_TIME:        27058.23 SOD {07:30:58.23} UT
  GRB_PHI:         118.00 [deg]
  GRB_THETA:        70.00 [deg]
  DATA_TIME_SCALE: 0.1280 [sec]
  HARD_RATIO:      0.56
  LOC_ALGORITHM:   3 (version number of)
  MOST_LIKELY:      69%  GRB
  2nd_MOST_LIKELY:  19%  GRO_J0422_32
  DETECTORS:       0,0,0, 0,0,0, 0,0,0, 1,1,0, 0,0,
  SUN_POSTN:       322.87d {+21h 31m 28s}  -14.67d {-14d 39' 55"}
  SUN_DIST:        123.04 [deg]   Sun_angle= -8.1 [hr] (East of Sun)
  MOON_POSTN:       77.85d {+05h 11m 23s}  +19.28d {+19d 16' 46"}
  MOON_DIST:        20.56 [deg]
  MOON_ILLUM:      74 [%]
  GAL_COORDS:      170.05,  3.43 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:       84.79, 15.86 [deg] ecliptic lon,lat of the burst (or transient)
  COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
  COMMENTS:        This trigger occurred at longitude,latitude = 285.67,17.68 [deg].  
  COMMENTS:           
  COMMENTS:        NOTE: This GBM event is temporally(1.0<100sec) coincident with the SWIFT_BAT event (trignum=586071).  
  

• GCN NOTICE
  

  TITLE:           GCN/FERMI NOTICE
  NOTICE_DATE:     Sun 09 Feb 14 07:31:35 UT
  NOTICE_TYPE:     Fermi-GBM Flight Position
  RECORD_NUM:      60
  TRIGGER_NUM:     413623861
  GRB_RA:           83.533d {+05h 34m 08s} (J2000),
                    83.778d {+05h 35m 07s} (current),
                    82.667d {+05h 30m 40s} (1950)
  GRB_DEC:         +39.200d {+39d 12' 00"} (J2000),
                   +39.209d {+39d 12' 31"} (current),
                   +39.167d {+39d 09' 60"} (1950)
  GRB_ERROR:       3.43 [deg radius, statistical plus systematic]
  GRB_INTEN:       5261 [cnts/sec]
  DATA_SIGNIF:     174.30 [sigma]
  INTEG_TIME:      0.512 [sec]
  GRB_DATE:        16697 TJD;    40 DOY;   14/02/09
  GRB_TIME:        27058.23 SOD {07:30:58.23} UT
  GRB_PHI:         118.00 [deg]
  GRB_THETA:        70.00 [deg]
  DATA_TIME_SCALE: 0.5120 [sec]
  HARD_RATIO:      0.69
  LOC_ALGORITHM:   3 (version number of)
  MOST_LIKELY:      74%  GRB
  2nd_MOST_LIKELY:  16%  GRO_J0422_32
  DETECTORS:       0,0,0, 0,0,0, 0,0,0, 1,1,0, 0,0,
  SUN_POSTN:       322.87d {+21h 31m 28s}  -14.67d {-14d 39' 55"}
  SUN_DIST:        123.03 [deg]   Sun_angle= -8.1 [hr] (East of Sun)
  MOON_POSTN:       77.85d {+05h 11m 24s}  +19.28d {+19d 16' 46"}
  MOON_DIST:        20.58 [deg]
  MOON_ILLUM:      74 [%]
  GAL_COORDS:      170.04,  3.44 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:       84.79, 15.88 [deg] ecliptic lon,lat of the burst (or transient)
  COMMENTS:        Fermi-GBM Flight-calculated Coordinates.  
  COMMENTS:        This trigger occurred at longitude,latitude = 285.67,17.68 [deg].  
  COMMENTS:           
  COMMENTS:        NOTE: This GBM event is temporally(1.0<100sec) coincident with the SWIFT_BAT event (trignum=586071).  
  

• GCN NOTICE
  

  TITLE:           GCN/FERMI NOTICE
  NOTICE_DATE:     Sun 09 Feb 14 07:31:38 UT
  NOTICE_TYPE:     Fermi-GBM Ground Position
  RECORD_NUM:      58
  TRIGGER_NUM:     413623861
  GRB_RA:           86.020d {+05h 44m 05s} (J2000),
                    86.249d {+05h 45m 00s} (current),
                    85.207d {+05h 40m 50s} (1950)
  GRB_DEC:         +31.810d {+31d 48' 36"} (J2000),
                   +31.815d {+31d 48' 55"} (current),
                   +31.789d {+31d 47' 19"} (1950)
  GRB_ERROR:       1.00 [deg radius, statistical only]
  DATA_SIGNIF:     209.30 [sigma]
  DATA_INTERVAL:   0.512 [sec]
  GRB_DATE:        16697 TJD;    40 DOY;   14/02/09
  GRB_TIME:        27058.23 SOD {07:30:58.23} UT
  GRB_PHI:         123.00 [deg]
  GRB_THETA:        76.00 [deg]
  E_RANGE:         44.032 - 279.965 [keV]
  LOC_ALGORITHM:   4143 (Gnd S/W Version number)
  SUN_POSTN:       322.87d {+21h 31m 28s}  -14.67d {-14d 39' 55"}
  SUN_DIST:        125.86 [deg]   Sun_angle= -8.2 [hr] (East of Sun)
  MOON_POSTN:       77.85d {+05h 11m 24s}  +19.28d {+19d 16' 46"}
  MOON_DIST:        14.64 [deg]
  MOON_ILLUM:      74 [%]
  GAL_COORDS:      177.38,  1.22 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:       86.58,  8.42 [deg] ecliptic lon,lat of the burst (or transient)
  COMMENTS:        Fermi-GBM Ground-calculated Coordinates.  
  COMMENTS:        This Notice was ground-generated -- not flight-generated.  
  COMMENTS:           
  COMMENTS:        NOTE: This GBM event is temporally(1.0<100sec) coincident with the SWIFT_BAT event (trignum=586071).  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Sun 09 Feb 14 07:34:47 UT
  NOTICE_TYPE:     Swift-BAT GRB Lightcurve
  TRIGGER_NUM:     586071,   Seg_Num: 0
  GRB_RA:           81.335d {+05h 25m 20s} (J2000),
                    81.565d {+05h 26m 16s} (current),
                    80.519d {+05h 22m 05s} (1950)
  GRB_DEC:         +32.477d {+32d 28' 37"} (J2000),
                   +32.489d {+32d 29' 19"} (current),
                   +32.433d {+32d 25' 59"} (1950)
  GRB_DATE:        16697 TJD;    40 DOY;   14/02/09
  GRB_TIME:        27057.88 SOD {07:30:57.88} UT
  TRIGGER_INDEX:   124
  GRB_PHI:         -159.53 [deg]
  GRB_THETA:        44.86 [deg]
  DELTA_TIME:      -70.00 [sec]
  TRIGGER_DUR:     0.512 [sec] 
  SOLN_STATUS:     0x3
  RATE_SIGNIF:     15.77 [sigma]
  IMAGE_SIGNIF:    9.74 [sigma]
  LC_URL:          sw00586071000msb.lc
  SUN_POSTN:       322.87d {+21h 31m 29s}  -14.66d {-14d 39' 52"}
  SUN_DIST:        121.86 [deg]   Sun_angle= -7.9 [hr] (East of Sun)
  MOON_POSTN:       77.88d {+05h 11m 30s}  +19.28d {+19d 16' 48"}
  MOON_DIST:        13.62 [deg]
  MOON_ILLUM:      74 [%]
  GAL_COORDS:      174.67, -1.75 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:       82.60,  9.26 [deg] ecliptic lon,lat of the burst (or transient)
  COMMENTS:        SWIFT-BAT GRB Lightcurve.  
  COMMENTS:           
  COMMENTS:        The next comments were copied from the BAT_POS Notice:  
  COMMENTS:        This is a rate trigger.  
  COMMENTS:        A point_source was found.  
  COMMENTS:        This does not match any source in the on-board catalog.  
  COMMENTS:        This does not match any source in the ground catalog.  
  COMMENTS:        This is a GRB.  
  COMMENTS:        This trigger occurred at longitude,latitude = 287.19,8.87 [deg].  
  

  
• GCN Circular #15808
  S. B. Cenko (GSFC), W. H. Baumgartner (GSFC/UMBC), V. D'Elia (ASDC), L. Izzo (URoma/ICRA), H. A. Krimm (CRESST/GSFC/USRA), A. Y. Lien (NASA/GSFC/ORAU), D. M. Palmer (LANL) and E. Sonbas (NASA/GSFC/Adiyaman Univ.) report on behalf of the Swift Team:
  At 07:30:57 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 140209A (trigger=586071). The BAT on-board calculated location is RA, Dec 81.335, +32.477 which is

     RA(J2000) = 05h 25m 20s
     Dec(J2000) = +32d 28' 37"
  

  with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a multi-peaked structure with a duration of about 5 sec. The peak count rate was ~43000 counts/sec (15-350 keV), at ~2 sec after the trigger.
  Due to a Moon observing constraint, Swift cannot slew to the BAT position until 04:37 UT on 2014 February 11. There will thus be no XRT or UVOT data for this trigger before this time.
  Burst Advocate for this burst is S. B. Cenko (brad.cenko AT nasa.gov). Please contact the BA by email if you require additional information regarding Swift followup of this burst. In extremely urgent cases, after trying the Burst Advocate, you can contact the Swift PI by phone (see Swift TOO web site for information: http://www.swift.psu.edu/too.html.)
• GCN Circular #15809
  D. A. Perley (Caltech) reports on behalf of a larger collaboration:
  The Palomar 60-inch telescope responded automatically to the Swift alert for GRB 140209A (Cenko et al., GCN 15808) and began a sequence of 60-second exposures in r, i, and z filters at 07:35:30 UT, 4.55 minutes after the BAT trigger. In the reduced images, we clearly detect a fading, uncatalogued optical counterpart inside the BAT error circle at the following location:

  RA  =  05:25:19.034
  Dec = +32:29:53.18
  (+/- 0.6 arcsec)
  

  Calibrated relative to USNO-B1.0, the source fades steadily from R=17.6 in the first r-band image to R=19.4 at 41.1 minutes post-GRB, which identifies it as the likely optical afterglow of this event.
• GCN Circular #15810
  L. Elenin (KIAM), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
  We observed of the field of the Swift GRB 140209A (Cenko et al., GCN 15808) with 0.4-m telescope of ISON-NM observatory starting on Feb., 9 (UT) 07:43:39. Series of 30 s unfiltered exposure were obtained. In the combined images we do not detect afterglow reported by Perley (GCN 15809).
  However we detect possible object (#2) in coordinates (J2000) 05 25 25.55 +32 27 57.2 (uncertainties of 1 arcsec) which is the BAT localization circle (Cenko et al., GCN 15808) and not present on DSS2(R). The object was detected only on the combined image of first 10 frames, and not detected on later combine images.
  Preliminary photometry is based on USNO-B1.0 nearby stars:

  UT mid,       Filter   Exposure,  OT (3 sigma upper limit),  object #2
                             s
  07:45:32       none    10*30           > 18.7                18.2+/-0.2
  07:58:47       none    10*30           > 18.4                   n/d
  08:14:05       none    10*30           > 18.3                   n/d
  

• GCN Circular #15811
  A. von Kienlin (MPE) reports on behalf of the Fermi GBM Team:
  "At 07:30:58.23 UT on 09 February 2014, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 140209A (trigger 413623861 / 140209313), which was also detected by the Swift/BAT (Cenko et al. 2014, GCN 15808). The GBM on-ground location is consistent with the Swift position.
  The trigger resulted in an Autonomous Repoint Request (ARR) that was accepted and the spacecraft slewed to the GBM in-flight location. The initial angle from the LAT boresight was 77 deg from the Fermi/GBM position.
  The GBM light curve consists of a bright pulse with a small precursor at trigger time with a duration (T90) of about 1.4 s (50-300 keV). The time-averaged spectrum from T0-0.192 s to T0+2.752 s is best fit by a Band function with Epeak = 144 +/- 8 keV, alpha = -0.56 +/- 0.06, and beta = -2.33 +/- 0.07.
  The event fluence (10-1000 keV) in this time interval is (9.5 +/- 0.2)E-06 erg/cm^2. The 0.064-sec peak photon flux measured starting from T0+1.664 s in the 10-1000 keV band is 120.5 +/- 3.4 ph/s/cm^2.
  The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."
• GCN Circular #15812
  D. M. Palmer (LANL), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), S. B. Cenko (GSFC), J. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), A. Y. Lien (NASA/UMBC), C. B. Markwardt (GSFC), T. Sakamoto (AGU), M. Stamatikos (OSU), J. Tueller (GSFC), T. N. Ukwatta (MSU) (i.e. the Swift-BAT team):
  Using the data set from T-61 to T+243 sec from the recent telemetry downlink, we report further analysis of BAT GRB 140209A (trigger #586071) (Cenko, et al., GCN Circ. 15808). The BAT ground-calculated position is RA, Dec = 81.328, 32.488 deg which is

      RA(J2000)  =  05h 25m 18.7s
      Dec(J2000) = +32d 29' 17.3"
  

  with an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 38%.
  The mask-weighted light curve shows an initial weak pulse from T+0 to T+0.5 sec, followed by the main pulse from T+1.5 to T+3.5 sec, with a FRED-like profile with some superimposed structure. This is followed by some low-level extended emission out to ~T+50 sec. T90 (15-350 keV) is 21.3 +- 8.0 sec (estimated error including systematics).
  The time-averaged spectrum from T+0.15 to T+29.22 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.44 +- 0.06. The fluence in the 15-150 keV band is 4.1 +- 0.2 x 10^-6 erg/cm2. The 1-sec peak photon flux measured from T+1.69 sec in the 15-150 keV band is 38.1 +- 1.1 ph/cm2/sec. All the quoted errors are at the 90% confidence level.
  It is possible that this burst falls in the category of short burst with extended emission. A lag analysis is underway that will be reported in a subsequent circular.
  The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/586071/BA/
• GCN Circular #15814
  J. Norris (BSU), S. D. Barthelmy (GSFC), A. Lien (GSFC), C. Markwardt (GSFC), T. Sakamoto (AGU), N. Gehrels (GSFC) report:
  We report the spectral lag analysis for GRB 140209A (GCN Circ. 15808 & 15812) based on the BAT data. Using 4-ms binned light curve, the spectral lag for the 25-50 keV to 100-350 keV bands is 28 (+10/-7) ms, and +34 (+8/-5) ms for the 15-25 keV to 50-100 keV bands. These lag values are consistant with a Long GRB. Further, the extended emission is both shorter than the typical extended eimssion of a Short GRB, and its shape is exponential in decay instead of more flat-like. And lastly, there is pecursor emission. The lag for the precursor in the 15-25 keV to 50-100 keV bands is 150 (+36/-30) ms.
• GCN Circular #15815
  J. Wren, W.T. Vestrand, P. Wozniak, and H. Davis, of Los Alamos National Laboratory report:
  The RAPTOR network of robotic optical telescopes made follow-up observations of Swift trigger 586071 (Cenko, et al., GCN 15808). Our narrow-field instruments in Los Alamos, NM, began imaging at 07:31:24.33 UT, 26.5 seconds after the BAT trigger time. We clearly detect the optical counterpart (Perley, et al., GCN 15809). Our first image at Tmid-Tbat=29.0s shows the counterpart at an unfiltered magnitude of 14.43+-.04. The counterpart fades steadily to mag 15.50+-.08 by Tmid-Tbat=65.4s. Our unfiltered observations were calibrated to the USNO-B1 R-band.
• GCN Circular #15818
  S. Golenetskii, R.Aptekar, V. Pal'shin, D. Frederiks, P. Oleynik, M. Ulanov, D. Svinkin, A. Tsvetkova and T. Cline on behalf of the Konus-Wind team report:
  The bright GRB 140209A (Swift-BAT trigger #586071: Cenko et al., GCN=20 15808, Palmer et al., GCN 15812; Fermi-GBM detection: von Kienlin, GCN=20 15811) triggered Konus-Wind at T0=3D27060.493 s UT (07:31:00.493).
  The burst light curve shows a double peaked pulse with a total duration=20 of ~1.4 s. The emission is seen up to ~1 MeV.
  As observed by Konus-Wind, the burst had a fluence of (7.2 =B1 0.6)x10^-6= =20 erg/cm2, and a 16-ms peak flux, measured from T0+0.280 s, of (2.2 =B1 0.3)x10^-5 erg/cm2/s (both in the 20 keV - 10 MeV energy rang= e).
  The time-integrated spectrum (measured from T0 to T0+8.448 s) is best fit (in the 20 keV - 1 MeV range) by a power law with exponential cutoff model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep) with alpha =3D -1.09(-0.21,+0.23) and Ep =3D 173(-20,+15) keV (chi2 =3D 53.2/55 dof). Fitting by GRB (Band) model yields the same alpha and Ep, and an upper limit on the high energy photon index: beta < -2.8 (chi2 =3D 53.2/54 dof).
  The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB140209_T27060/
  All the quoted errors are at the 90% confidence level.
  All the quoted results are preliminary.
• GCN Circular #15819
  V. D'Elia (ASDC), L. Izzo (URoma/ICRA), S. B. Cenko (GSFC) report on behalf of the Swift-XRT team:
  We have analysed 1.7 ks of XRT data for GRB 140209A (Cenko et al. GCN Circ. 15808), from 188.1 ks to 195.5 ks after the BAT trigger. The data are entirely in Photon Counting (PC) mode. Using 1439 s of PC mode data and 1 UVOT images, we find an enhanced XRT position (using the XRT-UVOT alignment and matching UVOT field sources to the USNO-B1 catalogue): RA, Dec = 81.32915, +32.49892 which is equivalent to:

  RA (J2000): 05h 25m 19.00s
  Dec(J2000): +32d 29' 56.1"
  

  with an uncertainty of 3.0 arcsec (radius, 90% confidence). We cannot determine at the present time whether the source is fading. The position is consistent with that of the optical afterglow reported by Perley (GCN Circ. 15809).
  The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00586071.
  This circular is an official product of the Swift-XRT team.
• GCN Circular #15821
  M. De Pasquale (MSSL-UCL) & S. B. Cenko (GSFC) report on behalf of the Swift team:
  Swift/UVOT started observations of GRB140209A (Cenko et al., GCN Circ. 15808) 188.1 ks after the burst trigger. No optical counterpart is detected at the position of XRT counterpart (D'Elia et al., GCN Circ 15819) and the P60 Source (Perley et al., GCN Circ 15809) in summed exposures.
  Preliminary 3-sigma upper limit using the UVOT photometric system (Breeveld et al al. 2011, AIP Conf. Proc. 1358, 373) is:

  Filter   T_start (s)  T_stop (s)  Exp(s)     Mag
  
  white    188075       195531      2689     >22.7
  

  No correction has been made for the expected Galactic extinction corresponding to E(B-V) = 0.03 in the direction of the burst (Schlegel et al. 1998).
• GCN Circular #15822
  M. De Pasquale (MSSL-UCL) reports on behalf of the Swift team:
  The reddening toward the direction of GRB 140209A quoted in GCN 15821 is actually not correct. The correct value is E(B-V) = 0.79. We thank D. A. Kann for pointing out the mistake.