[vsnet-grb-info 2979] GRB060218: Optical brightening in V and R

Thu Feb 23 19:37:51 JST 2006

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4816
SUBJECT: GRB060218: Optical brightening in V and R
DATE:    06/02/23 10:35:09 GMT
FROM:    Andreas O. Jaunsen at ESO  <ajaunsen at astro.uio.no>

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Jan-Erik Ovaldsen (ITA), Dong Xu (DARK, NBI), Josefine H. Selj (ITA),
Andreas O. Jaunsen (ITA), Chloe Feron, Christina Thoene, Johan
P. U. Fynbo, and Jens Hjorth (DARK, NBI) report:

 From observations of GRB060218/SN 2006aj (Cusumano et al., GCN #4775)
with DFOSC on the Danish 1.5m telescope at La Silla/ESO we find that
the optical afterglow + SN 2006aj has brightened by 0.2 (+/- 0.01) mag
in R and 0.1 (+/- 0.02) mag in V from Feb 20.03 UT to Feb 21.03 UT. An
optical brightening is in line with the notion that the underlying SN
2006aj has still to reach its maximum, as noted in previous reports.

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<HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; =
-khtml-line-break: after-white-space; "><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Jan-Erik =
Ovaldsen (ITA), Dong Xu (DARK, NBI), Josefine H. Selj (ITA),</DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; ">Andreas O. Jaunsen (ITA), Chloe Feron, Christina =
Thoene, Johan</DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; ">P. U. Fynbo, and Jens Hjorth =
(DARK, NBI) report:</DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; =
"><BR></DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; =
margin-bottom: 0px; margin-left: 0px; ">=46rom observations of =
GRB060218/SN 2006aj (Cusumano et al., GCN #4775)</DIV><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; ">with DFOSC on the Danish 1.5m telescope at La =
Silla/ESO we find that</DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; ">the optical afterglow + SN =
2006aj has brightened by 0.2 (+/- 0.01) mag</DIV><DIV style=3D"margin-top:=
 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">in R =
and 0.1 (+/- 0.02) mag in V from Feb 20.03 UT to Feb 21.03 UT. =
An</DIV><DIV style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: =
0px; margin-left: 0px; ">optical brightening is in line with the notion =
that the underlying SN</DIV><DIV style=3D"margin-top: 0px; margin-right: =
0px; margin-bottom: 0px; margin-left: 0px; ">2006aj has still to reach =
its maximum, as noted in previous reports.</DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><FONT =
class=3D"Apple-style-span" face=3D"Lucida Grande"><BR =
class=3D"khtml-block-placeholder"></FONT></DIV></BODY></HTML>=

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