| Summary table |
|---|
| Variable |
Value |
Source |
| T0 |
0:31:10 UTC |
Swift |
| ra |
216.6030° |
Swift |
| decl |
38.5410° |
Swift |
| pos_error |
2.33e-02° |
Swift |
| GBM_located |
False |
|
| mjd |
57119.02164351852 |
Swift |
| IPN table |
|---|
| GRB_name |
GRB150407A |
| ra |
216.6042° |
| decl |
38.5333° |
| pos_error |
5.00e-02° |
| Swift table |
|---|
| GRB_name |
GRB150407A |
| t_trigger |
0:31:10 UTC |
| ra |
216.6030° |
| decl |
38.5410° |
| pos_error |
2.33e-02° |
| GCN 17681 table |
|---|
| GRB_name |
GRB150407A |
| GCN_number |
17681 |
| Detection_method |
Swift Other |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 17681
SUBJECT: GRB 150407A: Swift ToO observations
DATE: 15/04/07 19:18:06 GMT
FROM: Phil Evans at U of Leicester
P. A. Evans (U. Leicester) reports on behalf of the Swift team:
Swift has initiated a ToO observation of the Swift/BAT GRB 150407A.
Automated analysis of the XRT data will be presented online at
http://www.swift.ac.uk/ToO_GRBs/00020487
Any uncatalogued X-ray sources detected in this analysis will be
reported on this website and via GCN COUNTERPART notices. These are
not necessarily related to the Swift/BAT event. Any X-ray source
considered to be a probable afterglow candidate will be reported via a
GCN Circular after manual consideration.
Details of the XRT automated analysis methods are detailed in Evans et
al. (2007, A&A, 469, 379; 2009, MNRAS, 397, 1177 and 2014, ApJS, 210, 8).
This circular is an official product of the Swift-XRT team.
|
| GCN 17682 table |
|---|
| GRB_name |
GRB150407A |
| GCN_number |
17682 |
| Detection_method |
Swift Det |
| ra |
216.6030° |
| decl |
38.5410° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 17682
SUBJECT: GRB 150407A: Swift detection of a possible burst
DATE: 15/04/07 19:31:57 GMT
FROM: David Palmer at LANL
GRB 150407A: Swift detection of a possible burst
D. M. Palmer (LANL) reports on behalf of the Swift Team:
At 00:31:10, the Swift Burst Alert Telescope (BAT) detected
a possible source, GRB 150407A (trigger=637342), with marginal
statistical significance, in two consecutive images of 6 minutes
total duration.
The BAT on-board calculated location is
RA, Dec 216.603, 38.541 (J2000), which is
RA(J2000) = 14h 26m 25s
Dec(J2000) = 38d 32' 28"
with an uncertainty of 3 arcmin (radius, 90% containment, including
systematic uncertainty). As is usual for image triggers, no obvious
variation is visible in the BAT lightcurve.
After ground discovery of this pair of possible detections, a ToO
observation is planned to search for a counterpart afterglow.
See GCN#17681 for details.
--
David Palmer palmer@lanl.gov (505)665-6863 (voice) (505)665-4414 (fax)
|
| GCN 17683 table |
|---|
| GRB_name |
GRB150407A |
| GCN_number |
17683 |
| Detection_method |
Optical |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 17683
SUBJECT: GRB 150407A: optical observations
DATE: 15/04/07 23:02:42 GMT
FROM: Klaas Wiersema at U Leicester
K. Wiersema (University of Leicester) reports on behalf of the Oadby
Transients Team:
We observed the field of possible GRB 150407A (Palmer et al. GCN 17682) using the
0.5m telescope of the observatory of the University of Leicester, at Oadby (UK).
In a series of V band exposures, with midpoint 21.32 UT on 7 April 2015 (~0.88 days
after burst, GCN 17682), we find no source brighter than the DSS limit, in or near the
BAT error circle (GCN 17682).
|
| GCN 17684 table |
|---|
| GRB_name |
GRB150407A |
| GCN_number |
17684 |
| Detection_method |
Swift-XRT Other |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 17684
SUBJECT: GRB 150407A: Swift-XRT observations
DATE: 15/04/08 07:39:54 GMT
FROM: Phil Evans at U of Leicester
J.A. Kennea (PSU), B. Sbarufatti (INAF-OAB/PSU), A. Amaral-Rogers (U.
Leicester), J.P. Osborne (U. Leicester), A. Melandri (INAF-OAB), P.
D'Avanzo (INAF-OAB), V. D'Elia (ASDC), D.N. Burrows (PSU) and P.A.
Evans (U. Leicester) report on behalf of the Swift-XRT team:
Swift-XRT has performed follow-up observations of the
Swift/BAT-detected burst GRB 150407A (Palmer et al. GCN Circ. 17682),
collecting 2.0 ks of Photon Counting (PC) mode data between T0+68.5 ks
and T0+70.5 ks.
No X-ray sources have been detected inside or close to the Swift/BAT
error region. The 3-sigma upper limit in the field ranges from ~0.004
to ~0.009 ct s^-1, corresponding to a 0.3-10 keV observed flux of
1.4e-13 to 3.8e-13 erg cm^-2 s^-1 (assuming a typical GRB spectrum).
The results of the XRT-team automatic analysis of the XRT observations,
including a position-specific upper limit calculator, are available at
http://www.swift.ac.uk/ToO_GRBs/00020487.
This circular is an official product of the Swift-XRT team.
|