2004IAUC.8268....2M


Query : 2004IAUC.8268....2M

2004IAUC.8268....2M - IAU Circ., 8268, 2 (2004/January-0)

Supernovae 2003ld, 2003lo, 2003lp, and 2003lq.

MATHESON T., CHALLIS P., KIRSHNER R. and CALKINS M.

Abstract (from CDS):

T. Matheson, P. Challis, and R. Kirshner, Harvard-Smithsonian Center for Astrophysics, report that a spectrum (range 370–750 nm) of SN 2003ld (cf. IAUC 8260), obtained by M. Calkins on Jan. 13.16 UT with the Mt. Hopkins 1.5-m telescope (+ FAST), shows it to be a type-II supernova; adopting the NASA/IPAC Extragalactic Database (NED) recession velocity of 4213 km/s for the host galaxy, the expansion velocity derived from the minimum of the H_beta line is 6000 km/s. A spectrogram of SN 2003lo (cf. IAUC 8261), obtained on Jan. 13.18, shows it to be a type-IIn supernova; the spectrum shows a blue continuum with both broad and narrow hydrogen emission lines. A spectrogram of SN 2003lp (cf. IAUC 8261), obtained on Jan. 13.46, shows it to be a type-II supernova; adopting the NED recession velocity of 2702 km/s for the host galaxy, the expansion velocity derived from the minimum of the H_beta line is 8200 km/s. A spectrogram (range 370-750 nm) of SN 2003lq (cf. IAUC 8262), obtained on Jan. 13.15, shows it to be a type-Ia supernova about a week past maximum. Adopting the NED recession velocity of 7271 km/s for the host galaxy, the supernova expansion velocity is 9700 km/s for Si II (rest 635.5 nm). The spectral-feature age of the supernova is 6 ± 2 days after maximum light.

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Journal keyword(s):

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 SN 2003lq SN* 00 03 04.02 -01 54 45.5     17.2     SNIa 15 1
2 SN 2003ld SN* 00 15 51.85 +16 05 21.6     16.8     SNII 18 1
3 SN 2003lo SN* 03 37 05.12 -05 02 17.3     17.2     SNIIn 14 1
4 SN 2003lp SN* 11 44 28.57 +69 43 54.6     16.9     SNII 9 1

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