Supernovae 2006ho-2006ht
Abstract
Further to CBET 611, B. Bassett, South African Astronomical Observatory (SAAO); A. Becker, University of Washington (UW); H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National University (SNU); D. Cinabro, Wayne State University; F. DeJongh, Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU); B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo (UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of Notre Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico State University; M. Im, SNU; S. Jha, Stanford University (SU); K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long, O. Malanushenko, and V. Malanushenko, APO; J. Marriner and D. McGinnis, Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT; R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto, OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI; R. Romani, SU; M. Sako, University of Pennsylvania; G. Saurage, APO; D. Schneider, Pennsylvania State University; M. Smith, UP; S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden, SAAO; S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda, UoT; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II collaboration, report the discovery of six new supernovae on multiple g, r, and i images taken with the SDSS 2.5-m telescope at APO by the SDSS observing team. Romani, Zheng, Sako, Wheeler, and Schneider, together with U. Hopp (University of Munich) and W. Kollatschny (University of Goettingen), report that spectroscopic observations with the Hobby Eberly Telescope on Sept. 27-29 UT show that 2006hp and 2006hs are type-Ia supernovae. Spectroscopic observations by P. Garnavich and J. Prieto with the Kitt Peak National Observatory 4-m telescope on Sept. 27 show that 2006ht is a type-Ia supernova and that 2006hq is a probable type-Ia supernova. J. Marriner and D. McGinnis report that observations with the ARC 3.5-m telescope at APO on Sept. 27 indicate that 2006ho is a type-II supernova and that 2006hr is a probable type-Ia supernova. The discovery magnitudes tabulated below are all SDSS g magnitudes. Spectroscopic redshifts are given in the column labelled "z". Peak dates (all 2006) are approximate estimates from early fits to the multi-band light curves. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Date UT Peak Date 2006ho Aug. 28 0 33 28.05 - 0 19 12.9 19.6 0.11 Sept. 7 2006hp Sept.16 0 24 14.32 - 0 14 53.7 23.0 0.25 Oct. 2 2006hq Sept.16 23 39 47.15 + 0 12 18.8 22.4 0.07 Sept.25 2006hr Sept.17 1 50 15.55 - 0 53 14.1 20.9 0.16 Sept.26 2006hs Sept.17 2 36 04.86 - 0 59 39.0 22.4 0.26 Sept.17 2006ht Sept.20 21 12 47.66 + 0 54 58.8 23.0 0.20 Oct. 5
- Publication:
-
Central Bureau Electronic Telegrams
- Pub Date:
- September 2006
- Bibcode:
- 2006CBET..654....1B