Supernova Cosmology Project
The SCP is conducting a search for very distant (redshifts greater than
1.2) Type Ia supernovae using the Advanced Camera for Surveys (ACS)
on the Hubble Space Telescope. We are searching on the same area of sky covered
by the GOODS-N survey (Giavalisco
et al. 2003), which is roughly centered on the Hubble Deep Field North
(Williams et al. 1996). Observations are divided into four search epochs
separated by approximately 50 days.Each of the four searches is comprised
of 15 ACS pointings which cover a total of 170 square arcminutes. Variable
objects, such as high redshift supernovae, are identified by subtracting
the 2003 GOODS-N ACS imaging from the new search images. For the second,
third, and fourth searches,the previous search epochs provide additional
information useful for determining which supernovae were discovered before
maximum light, making them suitable candidates for the subsequent follow-up.
Supernovae will be reported via IAU Circulars and this web page. This search
is done in coordination with the STScI Higher-z Team, with both teams searching
independently, comparing results, and then following different supernovae.
First search: April 2004
Report on April Search Result
April Search Candidates: Epoch 1: UT 2 April 2004 - 4
April 2004 (sorted by RA)
SCP ID
|
IAU PSN
|
Discovery Date (UT)
|
RA(J2000)
|
DEC(J2000)
|
z' mag (Vega)
|
i' mag (Vega)
|
| acs04-193 |
K0404-004
|
Apr. 02.74 |
12 36 19.86 |
+62 13 48.0 |
25.1 |
25.5 |
| acs04-177 |
K0404-001
|
Apr. 02.08 |
12 36 20.90 |
+62 10 19.6 |
25.4 |
26.3 |
| acs04-176 |
K0404-002
|
Apr. 02.08 |
12 36 25.93 |
+62 09 37.4 |
23.7 |
** |
| acs04-194 |
K0404-005
|
Apr. 02.74 |
12 36 27.07 |
+62 15 09.6 |
24.4 |
25.1 |
| acs04-185 |
K0404-003
|
Apr. 02.08 |
12 36 29.44 |
+62 11 41.9 |
24.4 |
24.3 |
| acs04-186 |
K0404-010
|
Apr. 04.71 |
12 36 46.07 |
+62 16 25.7 |
25.8 |
** |
| acs04-181 |
K0404-011
|
Apr. 04.71 |
12 36 49.36 |
+62 16 04.8 |
24.9 |
25.7 |
| acs04-196 |
K0404-006
|
Apr. 03.40 |
12 37 06.73 |
+62 21 17.8 |
25.4 |
25.7 |
| acs04-076 |
K0404-007
|
Apr. 03.40 |
12 37 09.44 |
+62 22 15.6 |
25.1 |
26.5 |
| acs04-197 |
K0404-009
|
Apr. 03.54 |
12 37 21.32 |
+62 09 35.2 |
25.7 |
>26.5 |
| acs04-195 |
K0404-008
|
Apr. 03.34 |
12 38 03.58 |
+62 17 11.9 |
24.7 |
25.2 |
CBAT Possible-Supernovae
Page
Supernova
Cosmology Project Search Team:
Robert Knop, Rachel Gibbons, S. Perlmutter, G. Aldering, M. Doi, V. Fadeyev, G. Goldhaber,
A. Goobar, N.Kashikawa, M. Kowalski, N. Kuznetsova, T. Morokuma,
A. Spadafora, V. Stanishev, L. Wang, N. Yasuda.
APRIL Candidates:
acs04-193 
|
acs04-177
|
acs04-176
|
acs04-194
|
acs04-185
|
acs04-186
|
acs04-181
|
acs04-196
|
acs04-076
|
acs04-197
|
acs04-195
|