[IAUC] CBET 1146: 20071123 : SUPERNOVAE 2007qz AND 2007rc-2007rs

Jue Nov 22 23:20:21 ART 2007

                                                  Electronic Telegram No. 1146
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS en CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT en CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


SUPERNOVAE 2007qz AND 2007rc-2007rs
     Further to CBETs 611 and 1139, B. Bassett, South African Astronomical
Observatory and University of Cape Town (UCT); A. Becker, University of
Washington (UW); D. Bizyaev and H. Brewington, Apache Point Observatory (APO);
C. Choi, Seoul National University (SNU); D. Cinabro, Wayne State University
(WSU); C. D'Andrea, University of Pennsylvania (Penn); J. Dembicky, APO; D. L.
DePoy, Ohio State University (OSU); B. Dilday, University of Chicago (UC); M.
Doi, University of Tokyo (UoT); J. Eastman, OSU; J. Frieman, Fermilab and UC;
P. Garnavich, University of Notre Dame; A. Goobar, Stockholm University; C.
Hogan, UW; J. Holtzman, New Mexico State University; M. Im, SNU; S. Jha,
Rutgers University; R. Kessler, UC; B. Ketzeback, APO; K. Konishi, UoT; J.
Krzesinski, APO; H. Lampeitl, University of Portsmouth (UP); G. Leloudas, Dark
Cosmology Centre, University of Copenhagen; D. Long, O. Malanushenko, and V.
Malanushenko, APO; J. Marriner, Fermilab; R. McMillan, APO; G. Miknaitis,
Fermilab; T. Morokuma, National Astronomical Observatory of Japan; J. Mosher,
Penn; R. Nichol, UP; D. Oravetz, K. Pan, APO; L. Ostman, Stockholm University;
J. L. Prieto, OSU; M. Richmond, Rochester Institute of Technology; A. Riess,
Space Telescope Science Institute; R. Romani, Stanford University (SU); M.
Sako, Penn; D. Schneider, Pennsylvania State University; A. Simmons, APO; M.
Smith, UP; S. Snedden, APO; J. Sollerman and M. Stritzinger, Dark Cosmology
Centre; N. Takanashi and K. Tokita, UoT; M. F. Taylor, WSU; K. van der Heyden,
UCT; S. Watters, APO; N. Yasuda, UoT; C. Wheeler, University of Texas, and
C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II collaboration,
report the discovery of seventeen supernovae on g, r, and i images taken with
the SDSS 2.5-m telescope at APO by the SDSS observing team.  A. Aragon-
Salamanca (University of Nottingham), M. Bremer (University of Bristol), M.
Turatto (University of Padova), A. Goobar, R. Nichol, J. Sollerman, P.
Ruiz-Lapuente (University of Barcelona), F. Castander (ICE/CSIC, Barcelona),
A. K. Romer (University of Sussex), C. Collins (Liverpool John Moores
University), and J. Lucey and A. Edge (University of Durham) report their
confirming spectroscopy that obtained at the European Southern Observatory's
3.6-m New Technology Telescope on Nov. 15 and 16 UT for 2007rd, 2007re,
2007rf, 2007rg, 2007ri, 2007rj, 2007rl, 2007rn, 2007rp, 2007rq, 2007rr,
and 2007rs by M. Smith and H. Lampeitl.  M. Stritzinger and J. Sollerman
report their confirming spectroscopy for 2007rc, 2007rh, and 2007ro that was
obtained by G. Leloudas and J. Sollerman at the Nordic Optical Telescope on
Nov. 15.  R. Romani, C. Zheng, M. Sako, C. Wheeler, D. Schneider, and R.
Bender, together with U. Hopp (University of Munich) and W. Kollatschny
(University of Goettingen) report their confirming spectroscopy that was
obtained at the Hobby Eberly Telescope on Nov. 13 for 2007rk and 2007rm.
The discovery magnitudes tabulated below are all g magnitudes; spectroscopic
redshifts are given in the column labelled z.  Peak dates (all 2007) are
approximate estimates from fits to the early light curves, with a typical
uncertainty of plus-or-minus two days.  Types marked with a question mark (?)
imply that the type identification based on the spectrum is uncertain.

SN       Discov.       R.A. (2000.0) Decl.     Mag.    z    Estimated   Type
         Date UT                                            Peak Date
2007rc   Oct. 21     1 50 20.20  - 0 24 13.7   20.0   0.13   Oct. 27    Ia
2007rd   Oct. 30    20 47 01.09  - 0 05 57.6   21.4   0.24   Nov.  1    Ia?
2007re   Oct. 30    21 17 34.92  - 0 31 26.3   23.0   0.20   Nov. 11    Ia
2007rf   Oct. 30    21 55 31.07  + 0 48 54.2   21.5   0.29   Nov.  4    Ia
2007rg   Oct. 31    20 51 20.27  + 1 01 08.0   22.3   0.45   Nov.  7    Ia?
2007rh   Oct. 31    21 41 03.77  + 0 08 33.2   21.5   0.22   Nov. 10    Ia?
2007ri   Nov.  2     1 06 52.35  + 1 09 14.6   22.8   0.19   Nov. 16    Ia
2007rj   Nov.  2     1 53 58.86  - 0 05 33.6   22.5   0.09   Nov. 10    Ia
2007rk   Nov.  2     3 42 17.43  + 1 03 47.3   22.2   0.20   Nov.  4    Ia
2007rl   Nov.  4     2 21 33.07  - 0 22 29.7   22.5   0.33   Nov. 17    Ia
2007rm   Nov.  4     2 21 45.09  + 0 51 52.1   22.7   0.30   Nov. 18    Ia
2007rn   Nov.  4    23 58 01.40  - 0 44 15.2   22.8   0.28   Nov. 18    Ia
2007ro   Nov.  5     1 44 28.97  + 0 13 47.2   21.5   0.17   Nov. 19    Ia
2007rp   Nov.  5    22 13 43.58  + 0 23 46.7   22.3   0.15   Nov. 17    Ia
2007rq   Nov.  7     0 53 32.11  + 0 54 01.0   22.4   0.27   Nov. 17    Ia
2007rr   Nov.  7     1 01 47.80  - 0 41 37.0   22.2   0.19   Nov. 19    Ia
2007rs   Nov. 11     0 46 27.40  - 1 03 44.1   22.5   0.12   Nov. 19    Ia

     On CBET 1139, it should have been noted that the spectroscopic
information for 2007qz was also contributed by Aragon-Salamanca et al.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2007 CBAT
2007 November 23                 (CBET 1146)              Daniel W. E. Green