GRB 060130

S. Mereghetti (IASF, Milano), D.Gotz (CEA, Saclay), S.Shaw, N.Mowlavi, M.
Beck (ISDC, Versoix), and J. Borkowski (CAMK, Torun) on behalf of the IBAS
Localization Team report:

A GRB lasting about 40 s has been detected by IBAS in IBIS/ISGRI data at
04:56:25 UT on January 30 2006.

The coordinates (J2000)  are:
RA:  229.224 [degrees],
DEC: -36.912 [degrees]

with an uncertainty of 2 arcmin.

The burst was detected with a significance below the threshold for
automatic Alert delivery.

Further analysis is in progress, and a plot of the light curve will be
posted at

http://ibas.mi.iasf.cnr.it/IBAS_Results.html

This message can be cited.

D. Gotz (CEA, Saclay) and S. Mereghetti (IASF, Milano) on behalf of the
IBAS Localization Team report:

GRB 060130 shows a single pulse light curve. Its peak flux integrated over
1 s (20-200 keV band) is 0.22 ph (2x10e-8 erg)/cmsq/s. Its fluence in the
same energy band is 3x10e-7 erg/cmsq.

This message can be cited.

Petr Kubanek (ASU Ondrejov, Czech Rep. and ISDC Versoix, Switzerland),
Michael Prouza (FZU Praha, Czech Rep.),
Martin Jelinek (IAA Granada, Spain),
Martin Nekola and Rene Hudec (ASU Ondrejov, Czech Rep.)

Report:

The wide field camera of the FRAM telescope, located at Pierre Auger
observatory in Malargue, Argentina, observed the field of INTEGRAL GRB
060130 (D. Gotz et al., GCN 4615
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 , 4616
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 ) starting at 9:09:36 UT, eg.  4h
13m after GRB. Observations was manually triggered and started under
dawn sky (but at favorable zenith distance ~ 25 deg).

Comparison with GSC does not reveal any new source within INTEGRAL error
box down to R mag ~ 13.

This message can be cited.

B. E. Cobb (Yale), part of the larger SMARTS consortium, reports:

Using the ANDICAM instrument on the 1.3m telescope at CTIO, we
obtained optical imaging of the error region of GRB 060130
(GCN 4615
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 , Mereghetti et al.) starting 09:14 2006-01-30 UT (~4.3
hours post-burst).  The imaging was conducted during twilight,
which limited the number and depth of the images we were able to
obtain.  The ANDICAM's optical field of view is 6'x6' and, therefore,
covers the entire GRB error circle.

Preliminary visual comparison of a 30 second R-band image to the SDSS
does not reveal any new sources.   The detection limits of this ANDICAM
image are slightly shallower than that of the SDSS.

V. Testa, L.A. Antonelli, A. Melandri, S. Covino, E. Molinari, G. Chincarini,
F.M. Zerbi, G. Tosti, F. Vitali, P. Conconi, G. Cutispoto, G. Malaspina,
L. Nicastro, E. Palazzi, E. Meurs, P. Goldoni, on behalf of the
REM/ROSS team, report:


The field of GRB 060130 (Mereghetti et al. GCN 4615
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 ) was
observed with the REM telescope located in La Silla (Chile).

The field was imaged with the REMIR near infrared camera in the J, H, K'
filters, starting at UT 9:29, approximately 4.4 hrs from the burst,
for a total integration time of 600 s in each filter.

No sources are detected within the IBAS error circle down to
the limiting magnitudes of 2MASS catalog.

Further observations are in progress.

This message is citeable.

Jesper Nielsen (DARK/Sindal School), Brian L. Jensen, Johan P. U. Fynbo,
Jens Hjorth (DARK Cosmology Centre), Christoffer Karoff (IFA/U. of
Aarhus) report on behalf or a larger collaboration:

"Using DFOSC on the Danish 1.5m telescope at La Silla, we have obtained
R-band imaging of the field of the Integral-detected GRB060130
(Mereghetti et al., GCN #4615
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 ) starting at Jan 30.375 (4.5h after the
trigger). Visual comparison with the DSS-2 does not reveal any transient
sources brighter than the DSS-2 limit. Our image reaches a detection limit
slightly deeper than R=22.

Our R-band image of the field can be seen at this URL:
http://www.astro.ku.dk/~brian_j/grb/grb060130/"

J. A. Kennea (PSU), O. Godet (U. Leicester), D. N. Burrows (PSU) and N. 
Gehrels (NASA/GSFC) report on behalf of the Swift Team:

Swift began a target of opportunity observation of the INTEGRAL detected 
burst GRB 060130 (GCN 4615
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 ) at 15:18:04 UT January 30th 2006, 10.3 hours 
after the burst. We have analyzed 10ks of Swift/XRT data of the field of 
the INTEGRAL burst and detect no source in or near the 2 arcmin INTEGRAL 
error circle. Assuming a Crab like spectrum and galactic absorption, we 
calculate a 3 sigma upper limit on the flux of the afterglow of 5 x 10^-14 
erg/s/cm^2 (0.2-10 keV).

Jesper Nielsen (DARK/Sindal School), Christina Thoene, Chloe Feron,
Johan P. U. Fynbo, Brian L. Jensen, Jens Hjorth (DARK Cosmology Centre),
Christoffer Karoff (IFA/U. of Aarhus) report on behalf or a larger
collaboration:

"Using DFOSC on the Danish 1.5m telescope at La Silla, we have obtained
further (3x600sec) R-band imaging of the field of the Integral-detected
GRB060130 (Mereghetti et al., GCN #4615
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 ) around Jan 31.3. By comparing
to our image taken 4.3 hr after the burst (GCN #4620
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 ) we place a 3-sigma
upper limit of R=23 on any transient sources 4.3 hr after the burst."

J. Haislip, C. MacLeod, M. Nysewander, A. LaCluyze, D. Reichart, J. A.
Crain, A. Foster, K. Ivarson, J. Kirschbrown report on behalf of the UNC
team of the FUN GRB collaboration:

We observed the localization of GRB 060130 (Mereghetti et al., GCN 4615
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 )
with three of the PROMPT telescopes simultaneously in r'Iz' beginning 23.8
hours after the burst under the automated control of Skynet:

Filter  Telescope  Start (UT)  Stop (UT)  Exposures  Total (hr)
r'      PROMPT-4   04:45:52    06:34:20   71 x 80s   1.80
I       PROMPT-1   04:46:02    06:33:52   71 x 80s   1.78
z'      PROMPT-5   04:45:42    06:34:53   72 x 80s   1.82

No new source is found to I > 19.8 mag (3 sigma).  The magnitudes have
been calibrated to five USNO-B1.0 stars.

PROMPT is currently being built and commissioned at CTIO.