GRB020127

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  1245
SUBJECT: GRB020127 Optical Observations
DATE:    02/02/06 02:00:48 GMT
FROM:    Brian Lee at Fermilab  

B. C. Lee, D. Q. Lamb, R. J. McMillan, D. G. York and D. E. Vanden Berk,
on behalf of the SDSS GRB team, report:

The field of GRB020127 (= H1902) (Ricker et al., GCN 1229) was
observed by the SDSS in two interlaced runs on 2001 December 18.34 and
19.30 UTC in the normal course of SDSS operations.  We have examined
the SDSS u* g* r* i* z* images in the vicinity of the eleven probable
X-ray sources seen in the first Chandra follow-up observation (Fox,
GCN 1241) that lie near or within the joint HETE-IPN localization
(Hurley et al., GCN 1232).  The tables below list the properties of
the objects we find that lie closest to the locations of the probable
X-ray sources.  The distance to the X-ray source position (col 3) is
listed in arcseconds.  SDSS RMS astrometric errors are 0.1 arcsec or
less.

------------------------------------------------------------------------------
       Nearest
X-ray  Optical    RA       Dec   Distance Photo     r* mag       Comment
Source Source    (deg)    (deg)  (arcsec) Class
------------------------------------------------------------------------------
cxo01  sdss01  123.67710 36.81988  0.86   star    20.22+/-0.02  Probable QSO
cxo02  sdss02  123.70650 36.72886 29.68   galaxy  22.84+/-0.28  Too faint
cxo03  sdss03  123.82472 36.65235  3.67   galaxy  21.39+/-0.06  QSO colors
cxo04  sdss04  123.85118 36.68411  1.94   galaxy  19.77+/-0.02
cxo05  sdss05  123.86302 36.68097  2.71   galaxy  22.76+/-0.18  Too faint
cxo06  sdss06  123.86641 36.82857  2.36   galaxy  21.44+/-0.06
cxo07  sdss07  123.88969 36.77076  0.65   star    20.33+/-0.03  Probable QSO
cxo08  sdss08  123.91376 36.79532  6.16   ------  15.06+/-0.01  Saturated star
cxo09  sdss09  123.92058 36.72213  3.35   galaxy  22.71+/-0.18  Too faint
cxo10  sdss10  123.92700 36.75947  2.01   ------  14.90+/-0.01  Saturated star
cxo11  sdss11  123.93778 36.68775  4.56   galaxy  22.20+/-0.11  Too faint
------------------------------------------------------------------------------
Table notes:

Photo class: the SDSS photometric pipeline's morphological classification.
             Star = PSF like, galaxy = extended.
Probable QSO/QSO colors: This object's colors are similar to that of a
                         QSO.
Too faint: This object is faint enough that classification,
           magnitudes, and colors are likely to be unreliable.
Saturated: This object is saturated in one or more filters.  Position,
           magnitudes, and photo class are unreliable.

------------------------------------------------------------------------------
     Photo
sdss Class      r*           u*-g*        g*-r*        r*-i*        i*-z*
------------------------------------------------------------------------------
01   star     20.22+/-0.02  0.37+/-0.05  0.05+/-0.03  0.02+/-0.04  0.20+/-0.09
02** galaxy   22.84+/-0.28 -0.37+/-0.54  1.26+/-0.40  0.25+/-0.33 -0.01+/-0.47
03   galaxy   21.39+/-0.06 -0.19+/-0.15  0.42+/-0.09  0.14+/-0.09  0.38+/-0.18
04   galaxy   19.77+/-0.02  1.38+/-0.15  0.58+/-0.03  0.47+/-0.03  0.13+/-0.05
05** galaxy   22.76+/-0.18 -0.05+/-0.71  0.45+/-0.27  0.26+/-0.26  0.93+/-0.34
06   galaxy   21.44+/-0.06  0.23+/-0.28  0.80+/-0.11  0.14+/-0.09  0.34+/-0.19
07   star     20.33+/-0.03  0.19+/-0.07  0.10+/-0.04  0.27+/-0.04 -0.01+/-0.09
08** ------   15.06+/-0.01 -2.08+/-0.03  0.01+/-0.02  0.14+/-0.02  1.87+/-0.02
09** galaxy   22.71+/-0.18 -0.72+/-0.38  0.64+/-0.29  0.71+/-0.22 -0.05+/-0.42
10** ------   14.90+/-0.01 -0.15+/-0.03 -0.09+/-0.02  0.32+/-0.02  2.46+/-0.02
11** galaxy   22.20+/-0.11  0.95+/-0.69  0.53+/-0.18  0.91+/-0.13  0.62+/-0.16
------------------------------------------------------------------------------
Table note:

** Saturated or faint star: magnitudes, colors, classification and
                            (for saturated stars) position are unreliable.

-- 
Brian C. Lee         - bclee@fnal.gov -          630-840-6646
Fermilab MS 127 WH7W -   PO Box 500   - Batavia IL 60510-0500
---------------- http://home.fnal.gov/~bclee/ ---------------

GRB011130

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  1175
SUBJECT: GRB011130 (XRF011130) SDSS PT i-band observations
DATE:    01/12/05 02:51:41 GMT
FROM:    Don Lamb at U.Chicago  

B. C. Lee, D. L. Tucker, D. Q. Lamb, D. E. Vanden Berk, and
E. Neilsen, on behalf of the SDSS GRB team, report:


We observed the entire revised HETE-2 error circle for GRB011130
(XRF011130) (GCN 1169) using the SDSS 0.5-m "Photometric Telescope"
(PT) at APO under clear skies and a bright moon on UTC 2001 December
2 from MJD 52245.208450 to 52245.301880.  We took a series of eleven
180 second i-band exposures (41.5' x 41.5' field of view) centered
on the reported location of XRF011130 (GCN 1169).  We have coadded
the 11 images and examined the region of the variable radio source
reported by Frail (GCN 1173).  We find an object with a peak
approximately 2 sigma above noise and an estimated magnitude of
i* = 20.5 +/- 0.5 at RA=03:05:24.96, DEC=+03:46:14.58 (RMS error of
approximately 1 arcsec), consistent with the location of the variable
radio source.  Because the object is only margninally detected in
the coadded image, is slightly below the limiting magnitude of the
DPOSS plates, and has not been observed as part of the SDSS imaging
survey, we do not know if it is variable.  Additional observations
are urged.

A finding chart can be found at:
   http://sdss.fnal.gov:8000/grb/
   (moved to http://home.fnal.gov/~bclee/grb/)

This message may be cited.

Right/bottom: A 5' square DSS image supplied by CADC'S DSS Interface.

MJD and TIA of the coadded images:
52245.208450 05:00:43.02
52245.211520 05:05:08.09
52245.229120 05:30:29.15
52245.260380 06:15:29.92
52245.263460 06:19:56.11
52245.266550 06:24:22.97
52245.269640 06:28:49.69
52245.292130 07:01:12.59
52245.295720 07:06:23.39
52245.298800 07:10:49.54
52245.301880 07:15:15.56

Related GCN Circulars (additional observations):
GCN 1176 (Greiner, Klose, Henden, Riffeser, and Castro-Tirado)
GCN 1177 (Mirabal, Halpern, and Kemp)

Orphan afterglow in the SDSS?

SDSS J124602.54 + 011318.8: A Highly Luminous Optical Transient at z = 0.385
Vanden Berk et al. The Astrophysical Journal, 576:673-678, 2002 September 10

Get the paper here:

• astro-ph/0111054 (preprint on arXiv.org)
• The Astrophysical Journal (published version)

Other links:
Astronomy Picture of the Day
FNAL Press Release
See also the Supernovae Search Project Page.

Woods Hole 2001

Poster (2.2MB gzipped postscript) from Woods Hole 2001 conference.

A version of this poster (without most of the figures!) will appear in the Woods Hole proceedings published by AIP. You can get a slightly updated version (one added note and updated references) of the proceedings with all the figures below, after this brief announcement, required by the AIP:

The following article has been submitted to/accepted by Gamma-Ray Burst and Afterglow Astronomy 2001: A Workshop Celebrating the First Year of the HETE Mission, Woods Hole, Massachusetts 5-9 November 2001, AIP Conference Proceedings (Volume unknown at this time). After it is published, it will be found at http://proceedings.aip.org/proceedings/astronomy.jsp.

Conference proceedings with all the figures and minor updates:

• Full resolution (2.8MB gziped postscript)
• Low resolution (0.35MB gziped postscript)

GRB010921

LOTIS, Super-LOTIS, SDSS and Tautenburg Observations of GRB 010921
Park et al. The Astrophysical Journal, 571:L131-L135, 2002 June 1

• astro-ph/0112397 preprint on arXiv.org
  
• The Astrophysical Journal

0.5m PT ugriz images of GRB010921. East is up, north is to the right.

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  1125
SUBJECT: GRB010921, optical observations
DATE:    01/11/01 18:06:54 GMT
FROM:    Don Lamb at U.Chicago  

D. Q. Lamb, B. C. Lee, D. L. Tucker, D. E. Vanden Berk, P. Newman,
J. Krzesinski and A. N. Kleinman, on behalf of the SDSS GRB team,
report:

We observed the HETE error box for GRB 010921 (GCN 1096) using the SDSS
0.5-m "Photometic Telescope" at APO under partly cloudy conditions on
2001 September 22 beginning at UT 02:36 and on 2001 September 23
beginning at UT 05:23.  Images of the entire improved HETE error box
(GCN 1097) were acquired in the SDSS u, g , r, i, and z filters on both
nights.

The optical transient (OT) reported by Price et al. (GCN 1107; see also
GCN 1108 and GCN 1113) was r'=19.6 +/-0.3 on September 22 and
significantly fainter on September 23 (we place an upper limit on r' of
roughly 20.0).  The OT is marginally visible (at perhaps the 1 to 2
sigma level) in g and i on September 22 and in g and r on September 23.
We place upper limits on u, g, i, and z of roughly 20.5, 18.5, 17.5,
and 15.0 on September 22, with the completeness limit of the i and z
filters heavily degraded by clouds, and 19.5, 20.0, 18.5, and 18.5 on
September 23, again impacted by clouds.  These upper limits are
consistent with a ~ nu^{-2.3} spectrum over u, g, r, i, and z (GCN
1107).  Images can be found at http://sdss.fnal.gov:8000/grb/.

This message is quotable.

GRB010222

This section contains info about SDSS observations of GRB010222, and at the present is mostly a collection of the scattered fragments we had before we wrote the paper.

Sloan Digital Sky Survey Multicolor Observations of GRB 010222
Lee, Tucker, Vanden Berk, Yanny, Reichart et al. The Astrophysical Journal, 561:183-188, 2001 November 1

Get the paper here:

• astro-ph/0104201 (preprint on arXiv.org with low-res figures)
• Local copy (submitted version, 1.4M gzipped with full-res figures)
• The Astrophysical Journal (published version)

Additional material:

• gzipped Postscript: sdssgrb010222.v2.ps.gz (~1.4M)
• PDF: sdssgrb010222.v2.pdf (~1.6M)
• sdssgrb010222.v2.tex
• figure1.eps.gz (~1.4M)
• figure2.eps.gz
• figure3.eps.gz
• figure4.eps.gz
• To LaTeX the paper you'll also need these files:
  • emulateapj5.sty
  • aastex.cls
  • apjfonts.sty
• Bonus files:
  • Color JPEG version of the finding chart (figure 1) from our AAS198 poster.

Click to see the full size images:
Run 2143 camCol 3 Field 22

g r i color composite	subframe with GRB010222 identified	u g r i z corrected sub-frames

SDSS ONLY: Updates and discussion can be found on the Serendipity Working Group Mailing List. Visit http://www.astro.princeton.edu:81/sdss-serendip/INDEX.html to subscribe.

Selected Emails (SDSS Only)

• 2.5m Observing Log
• APO20 Observing Log
• GRB010222 project announcement
• GRB010222 early results Fri, 02 Mar 2001
• GRB010222 Pretty Pictures Mon, 05 Mar 2001
• GRB010222 Update Wed, 07 Mar 2001
• GRB010222 update Fri, 16 Mar 2001

Links

• astro-ph/9912368: Dust Extinction Curves and Ly-alpha Forest Flux Deficits for Use in Modeling GRB Afterglows and All Other Extragalactic Point Sources, Daniel E. Reichart
• GCN Reports for GRB010222 from the GCN page.
• Gamma-ray Burst 010222 page from Jochen Greiner's Gamma-Ray Burst Afterglows page.
• The CfA GRB Group (GRB010222 Obs.)
• GRB 010222: Near-IR Observations
• GRB010222 observations from Nyrölä Observatory
• Gamma Ray Burst optical follow-up program (GRB010222 Obs.)
• astro-ph/0103081: The Redshift of the Optical Transient Associated with GRB 010222, Jha et al.
• astro-ph/0103296: GRB010222: afterglow emission in a rapidly decelerating jet, Masetti et al.
• astro-ph/0104201: Sloan Digital Sky Survey Multicolor Observations of GRB010222, Lee et al.
• astro-ph/0104249: Optical and Radio observations of th bright GRB010222 afterglow: evidence for rapid synchrotron cooling? Sagar et al.
• astro-ph/0104329: Rapid UBVRI Follow-up of the Highly Collimated Optical Afterglow of GRB010222, Stanek et al.
• astro-ph/0104362: BeppoSAX measurements of the bright gamma-ray burst 010222, J.J.M. in 't Zand et al.
• astro-ph/0104363: Optical Photometry of the GRB 010222 Afterglow, R. Cowsik et al.
• astro-ph/0105055: Afterglow Emission from Highly Collimated Jets with Flat Electron Spectra: Application to the GRB 010222 Case? Dai and Cheng