Circular No. 8020

Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION

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SUPERNOVAE 2002id–2002it Further to IAUC 7994, G. Miknaitis, A. Miceli, and A. Garg, report the

SDSS detection of 17 supernovae by subtraction against images (limiting mag r = 22.5) taken on 2002 Oct. 10 (SNe 2002id–2002ih and 2002ip) and on 2001 Nov. 12 (the rest). Objects lacking offsets are < 2′′ from the cores of their host galaxies. Spectroscopy was obtained by R. Chornock, S. Jha, A. Filippenko, and B. Barris with the Keck II (= K2) and Keck I telescopes (= K1) and by M. Hamuy with the Magellan I telescope (= H), yielding dates in Nov., spectroscopic types, ages, and redshifts (z): 2002id, 2, Ia, near maximum, 0.298 (K2); 2002ie, 2, reddened Ia, near max, 0.163 (K2); 2002if, 2, features seen in spectrum (possibly type Ic), –, 0.321 (K2); 2002ig, 2, young II, –, 0.077 (K2); 2002ih, 3, Ia, a little before max, 0.20 (K2); 2002ii, 8, Ia, just past max, 0.10 (K1); 2002ij, 8, Ia, just past max, 0.194 (K1); 2002ik, 8, IIp, in plateau phase, 0.032 (K1); 2002il, 9, Ia, ∼ 2 weeks past max, 0.12 (K2); 2002im, 9, Ia, ∼ 1 week past max, 0.25 (K2); 2002in, 11, II, –, 0.076 (K1); 2002io, 11, Ia, near maximum, 0.25 (K1); 2002ip, 11, II, –, 0.079 (H); 2002iq, 12, II, –, 0.056 (H); 2002ir, 12, Ia, 1–2 weeks past max, 0.28 (H); 2002is, 12, Ia, 1–2 weeks past max, 0.26 (H); 2002it, 12, spectrum shows broad supernova-like features, –, – (H).

SN  2002 UT  α_{2000}  δ_{2000}  r  Offset
2002id Oct. 29.2 1^{h}30^{m}02.^{s}85 − 0^{o}40′32′′.4 21.2  —
2002ie  29.2 1 38 53.20 + 0 59 05.3 20.5 1′′.8 W, 2′′.5 N
2002if  29.2 1 50 04.51 + 0 00 26.4 22.0 1′′.0 E, 1′′.7 N
2002ig  29.2 1 36 36.72 + 0 55 25.6 19.6 7′′.9 W, 1′′.0 N
2002ih 29.2 1 57 04.49 − 0 38 02.2 21.5 —
2002ii  30.1 22 01 52.42 − 1 10 24.1 21.3 5′′.0 W, 5′′.0 S
2002ij  30.1 21 17 37.64 + 0 30 32.4 21.2 0′′.3 E, 1′′.2 N
2002ik  30.1 21 25 54.27 + 0 24 53.6 20.1 7′′.1 E, 4′′.9 S
2002il 30.2 22 51 55.71 + 0 36 05.5 20.0 —
2002im  30.2 22 58 04.59 + 0 34 13.5 20.9 5′′.5 W, 1′′.5 S
2002in 30.1 21 44 17.38 − 0 14 31.5 19.1 —
2002io  30.2 23 32 42.32 + 0 05 28.2 21.4 1′′.0 E, 2′′.0 S
2002ip  30.2 0 04 07.32 + 0 10 03.0 19.3 1′′.0 E, 2′′.0 N
2002iq 30.1 22 32 07.06 + 0 54 56.0 21.6 —
2002ir  30.2 0 08 59.93 + 0 57 55.7 21.4 3′′.3 E, 0′′.6 N
2002is  30.2 0 23 15.07 + 0 53 29.6 21.4 2′′.3 E, 3′′.0 S
2002it  30.3 1 44 34.02 + 0 51 27.5 21.9 3′′.6 W, 0′′.8 N
2002 November 21  \begin{matrix}c \\ ◯ \end{matrix} Copyright 2002 CBAT  Daniel W. E. Green