2019ApJS..241...17C

Query : 2019ApJS..241...17C

2019ApJS..241...17C - Astrophys. J., Suppl. Ser., 241, 17-17 (2019/April-0)

First release of high-redshift superluminous supernovae from the Subaru HIgh-Z SUpernova CAmpaign (SHIZUCA). II. Spectroscopic properties.

CURTIN C., COOKE J., MORIYA T.J., TANAKA M., QUIMBY R.M., BERNARD S.R., GALBANY L., JIANG J.-A., LEE C.-H., MAEDA K., MOROKUMA T., NOMOTO K., PIGNATA G., PRITCHARD T., SUZUKI N., TAKAHASHI I., TANAKA M., TOMINAGA N., YAMAGUCHI M. and YASUDA N.

Abstract (from CDS):

We present Keck spectroscopic observations of three probable high-redshift superluminous supernovae (SLSNe) from the Subaru HIgh-Z sUpernova CAmpaign (SHIZUCA), confirming redshifts of 1.851, 1.965, and 2.399. The host galaxies were selected for transient monitoring from multiband photometric redshifts. The supernovae are detected during their rise, and the classically scheduled spectra are collected near maximum light. The rest-frame far-ultraviolet (∼1000-2500 Å) spectra include a significant host galaxy flux contribution, and we compare our host-galaxy-subtracted spectra to UV-luminous SNe from the literature. While the signal-to-noise ratios of the spectra presented here are sufficient for redshift confirmation, supernova spectroscopic type confirmation remains inconclusive. The success of the first SHIZUCA Keck spectroscopic follow-up program demonstrates that campaigns such as SHIZUCA are capable of identifying high-redshift SLSNe with sufficient accuracy, speed, and depth for rapid, well-cadenced, and informative follow-up.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: high-redshift - methods: observational - supernovae: individual - ultraviolet: general

Simbad objects: 11

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Number of rows : 11
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 DES15E2mlf SN* 00 41 33.40 -43 27 17.2           SLSN 17 0
2 LSQ 15abl SN* 09 40 29.50 -04 11 32.3           SLSNII 7 0
3 SN 2010jl SN* 09 42 53.33 +09 29 41.8           SNIIn 350 1
4 HSC 17dbpf SN* 09 58 33.42 +01 59 29.7           ~ 3 0
5 HSC 17auzg SN* 09 59 00.42 +02 14 20.8           ~ 5 0
6 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 3639 0
7 HSC 16adga SN* 10 02 20.12 +02 48 43.3           ~ 5 0
8 SN 2017egm SN* 10 19 05.620 +46 27 14.08           SLSN-I 93 0
9 SN 1998S SN* 11 46 06.1 +47 28 55     12.2     SNIIn 517 1
10 SN 2016eay SN* 12 02 51.71 +44 15 27.4           SLSN-I 83 0
11 ZW VIII 211 rG 12 48 15.2253025968 +17 46 26.475426228   16.5       ~ 360 0

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