GRB140209A

This page lists all entries on GRB140209A in GRBweb

Summary Fermi GBM IPN Swift GCN 15808 GCN 15809 GCN 15810 GCN 15811 GCN 15812 GCN 15814 GCN 15815 GCN 15818 GCN 15819 GCN 15821 GCN 15822

Summary table
Variable Value Source
GRB_name_Fermi GRB140209313
T0 7:30:57 UTC GCN_circulars,Swift Det
ra 81.3292° Swift
decl 32.4984° Swift
pos_error 3.24e-04° Swift
T90 1.408 s Fermi_GBM
T90_error 0.264 s Fermi_GBM
T90_start 7:30:59.574 UTC Fermi_GBM
fluence 8.97e-06 erg/cm² Fermi_GBM
fluence_error 5.33e-08 erg/cm² Fermi_GBM
T100 21.3 s
GBM_located False
mjd 56697.313159722224 GCN_circulars,Swift Det
Fermi GBM table
GRB_name_Fermi GRB140209313
trigger_name bn140209313
ra 81.3279°
decl 32.4881°
pos_error 2.56e+00°
datum 2014-02-09
t_trigger 7:30:58.230 UTC
T90 1.408 s
T90_error 0.264 s
T90_start 7:30:59.574 UTC
fluence 8.97e-06 erg/cm²
fluence_error 5.33e-08 erg/cm²
flux_1024 5.80e+01 erg/cm²/s
flux_1024_error 6.45e-01 erg/cm²/s
flux_1024_time 1.34e+00 erg/cm²/s
flux_64 1.21e+02 erg/cm²/s
flux_64_error 3.44e+00 erg/cm²/s
IPN table
GRB_name GRB140209A
ra 81.3333°
decl 32.4833°
pos_error 5.00e-02°
Swift table
GRB_name GRB140209A
t_trigger 7:30:57 UTC
ra 81.3292°
decl 32.4984°
pos_error 3.24e-04°
T90 21.3 s
fluence 4.10e-06 erg/cm²
GCN 15808 table
GRB_name GRB140209A
GCN_number 15808
Detection_method Swift Det
t_trigger 7:30:57 UTC
ra 81.3350°
decl 32.4770°
Circular_text TITLE: GCN CIRCULAR NUMBER: 15808 SUBJECT: GRB 140209A: Swift detection of a burst DATE: 14/02/09 07:45:23 GMT FROM: David Palmer at LANL 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 15809 table
GRB_name GRB140209A
GCN_number 15809
Detection_method Optical
ra 81.3293°
decl 32.4981°
Circular_text TITLE: GCN CIRCULAR NUMBER: 15809 SUBJECT: GRB 140209A: P60 optical afterglow detection DATE: 14/02/09 09:29:44 GMT FROM: Daniel Perley at Caltech 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 15810 table
GRB_name GRB140209A
GCN_number 15810
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 15810 SUBJECT: GRB 140209A: optical observations DATE: 14/02/09 10:37:54 GMT FROM: Alexei Pozanenko at IKI, Moscow 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 15811 table
GRB_name GRB140209A
GCN_number 15811
Detection_method Fermi GBM Det
t_trigger 7:30:58.230 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 15811 SUBJECT: GRB 140209A: Fermi GBM observation DATE: 14/02/09 17:58:11 GMT FROM: Andreas von Kienlin at MPE 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 15812 table
GRB_name GRB140209A
GCN_number 15812
Detection_method Swift-BAT Det
ra 81.3280°
decl 32.4880°
Circular_text TITLE: GCN CIRCULAR NUMBER: 15812 SUBJECT: GRB 140209A, Swift-BAT refined analysis DATE: 14/02/09 19:27:41 GMT FROM: Hans Krimm at NASA-GSFC 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 15814 table
GRB_name GRB140209A
GCN_number 15814
Detection_method Swift-BAT Det
Circular_text TITLE: GCN CIRCULAR NUMBER: 15814 SUBJECT: GRB 140209A: Swift-BAT Spectral lag analysis DATE: 14/02/10 13:53:26 GMT FROM: Scott Barthelmy at NASA/GSFC 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 15815 table
GRB_name GRB140209A
GCN_number 15815
Detection_method Swift-BAT Det
Circular_text TITLE: GCN CIRCULAR NUMBER: 15815 SUBJECT: GRB 140209A: Early RAPTOR Optical Detection DATE: 14/02/10 19:32:06 GMT FROM: James Wren at LANL 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 15818 table
GRB_name GRB140209A
GCN_number 15818
Detection_method Konus-Wind Det
t_trigger 7:31:00.493 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 15818 SUBJECT: Konus-Wind observation of GRB 140209A DATE: 14/02/11 17:13:12 GMT FROM: Valentin Pal'shin at Ioffe Inst 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 15808, Palmer et al., GCN 15812; Fermi-GBM detection: von Kienlin, GCN 15811) triggered Konus-Wind at T0=27060.493 s UT (07:31:00.493). The burst light curve shows a double peaked pulse with a total duration 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 0.6)x10^-6 erg/cm2, and a 16-ms peak flux, measured from T0+0.280 s, of (2.2 0.3)x10^-5 erg/cm2/s (both in the 20 keV - 10 MeV energy range). 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 = -1.09(-0.21,+0.23) and Ep = 173(-20,+15) keV (chi2 = 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 = 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 15819 table
GRB_name GRB140209A
GCN_number 15819
Detection_method Swift-XRT Other
ra 81.3291°
decl 32.4989°
Circular_text TITLE: GCN CIRCULAR NUMBER: 15819 SUBJECT: GRB 140209A: Swift-XRT observations DATE: 14/02/11 23:17:49 GMT FROM: Valerio D'Elia at ASDC 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 15821 table
GRB_name GRB140209A
GCN_number 15821
Detection_method Swift-UVOT Det
Circular_text TITLE: GCN CIRCULAR NUMBER: 15821 SUBJECT: GRB140209A: Swift/UVOT observations. DATE: 14/02/12 12:43:35 GMT FROM: Massimiliano de Pasquale at MSSL-UCL 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 15822 table
GRB_name GRB140209A
GCN_number 15822
Detection_method Swift-UVOT Det
Circular_text TITLE: GCN CIRCULAR NUMBER: 15822 SUBJECT: Correction to GCN 18521 "GRB140209A: Swift/UVOT observations" DATE: 14/02/12 13:05:17 GMT FROM: Massimiliano de Pasquale at MSSL-UCL 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.