First Release of High-redshift Superluminous Supernovae from the Subaru HIgh-Z SUpernova CAmpaign (SHIZUCA). II. Spectroscopic Properties

Chris Curtin, Jeff Cooke, Takashi J. Moriya, Masayuki Tanaka, Robert M. Quimby, Stephanie R. Bernard, Lluís Galbany, Ji An Jiang, Chien Hsiu Lee, Keiichi Maeda, Tomoki Morokuma, Ken'Ichi Nomoto, Giuliano Pignata, Tyler Pritchard, Nao Suzuki, Ichiro Takahashi, Masaomi Tanaka, Nozomu Tominaga, Masaki Yamaguchi, Naoki Yasuda

Resultado de la investigación: Article

6 Citas (Scopus)

Resumen

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 ) 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.

Idioma originalEnglish
Número de artículo17
PublicaciónAstrophysical Journal, Supplement Series
Volumen241
N.º2
DOI
EstadoPublished - 1 abr 2019

Huella dactilar

supernovae
galaxies
signal-to-noise ratio
monitoring
signal to noise ratios

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Citar esto

Curtin, Chris ; Cooke, Jeff ; Moriya, Takashi J. ; Tanaka, Masayuki ; Quimby, Robert M. ; Bernard, Stephanie R. ; Galbany, Lluís ; Jiang, Ji An ; Lee, Chien Hsiu ; Maeda, Keiichi ; Morokuma, Tomoki ; Nomoto, Ken'Ichi ; Pignata, Giuliano ; Pritchard, Tyler ; Suzuki, Nao ; Takahashi, Ichiro ; Tanaka, Masaomi ; Tominaga, Nozomu ; Yamaguchi, Masaki ; Yasuda, Naoki. / First Release of High-redshift Superluminous Supernovae from the Subaru HIgh-Z SUpernova CAmpaign (SHIZUCA). II. Spectroscopic Properties. En: Astrophysical Journal, Supplement Series. 2019 ; Vol. 241, N.º 2.
@article{3a9a489327d74aacbe4431fd6b5755b8,
title = "First Release of High-redshift Superluminous Supernovae from the Subaru HIgh-Z SUpernova CAmpaign (SHIZUCA). II. Spectroscopic Properties",
abstract = "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 ) 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.",
keywords = "galaxies: high-redshift, methods: observational, supernovae: individual, ultraviolet: general",
author = "Chris Curtin and Jeff Cooke and Moriya, {Takashi J.} and Masayuki Tanaka and Quimby, {Robert M.} and Bernard, {Stephanie R.} and Llu{\'i}s Galbany and Jiang, {Ji An} and Lee, {Chien Hsiu} and Keiichi Maeda and Tomoki Morokuma and Ken'Ichi Nomoto and Giuliano Pignata and Tyler Pritchard and Nao Suzuki and Ichiro Takahashi and Masaomi Tanaka and Nozomu Tominaga and Masaki Yamaguchi and Naoki Yasuda",
year = "2019",
month = "4",
day = "1",
doi = "10.3847/1538-4365/ab07c8",
language = "English",
volume = "241",
journal = "Astrophysical Journal, Supplement Series",
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Curtin, C, Cooke, J, Moriya, TJ, Tanaka, M, Quimby, RM, Bernard, SR, Galbany, L, Jiang, JA, Lee, CH, Maeda, K, Morokuma, T, Nomoto, KI, Pignata, G, Pritchard, T, Suzuki, N, Takahashi, I, Tanaka, M, Tominaga, N, Yamaguchi, M & Yasuda, N 2019, 'First Release of High-redshift Superluminous Supernovae from the Subaru HIgh-Z SUpernova CAmpaign (SHIZUCA). II. Spectroscopic Properties', Astrophysical Journal, Supplement Series, vol. 241, n.º 2, 17. https://doi.org/10.3847/1538-4365/ab07c8

First Release of High-redshift Superluminous Supernovae from the Subaru HIgh-Z SUpernova CAmpaign (SHIZUCA). II. Spectroscopic Properties. / Curtin, Chris; Cooke, Jeff; Moriya, Takashi J.; Tanaka, Masayuki; Quimby, Robert M.; Bernard, Stephanie R.; Galbany, Lluís; Jiang, Ji An; Lee, Chien Hsiu; Maeda, Keiichi; Morokuma, Tomoki; Nomoto, Ken'Ichi; Pignata, Giuliano; Pritchard, Tyler; Suzuki, Nao; Takahashi, Ichiro; Tanaka, Masaomi; Tominaga, Nozomu; Yamaguchi, Masaki; Yasuda, Naoki.

En: Astrophysical Journal, Supplement Series, Vol. 241, N.º 2, 17, 01.04.2019.

Resultado de la investigación: Article

TY - JOUR

T1 - First Release of High-redshift Superluminous Supernovae from the Subaru HIgh-Z SUpernova CAmpaign (SHIZUCA). II. Spectroscopic Properties

AU - Curtin, Chris

AU - Cooke, Jeff

AU - Moriya, Takashi J.

AU - Tanaka, Masayuki

AU - Quimby, Robert M.

AU - Bernard, Stephanie R.

AU - Galbany, Lluís

AU - Jiang, Ji An

AU - Lee, Chien Hsiu

AU - Maeda, Keiichi

AU - Morokuma, Tomoki

AU - Nomoto, Ken'Ichi

AU - Pignata, Giuliano

AU - Pritchard, Tyler

AU - Suzuki, Nao

AU - Takahashi, Ichiro

AU - Tanaka, Masaomi

AU - Tominaga, Nozomu

AU - Yamaguchi, Masaki

AU - Yasuda, Naoki

PY - 2019/4/1

Y1 - 2019/4/1

N2 - 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 ) 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.

AB - 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 ) 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.

KW - galaxies: high-redshift

KW - methods: observational

KW - supernovae: individual

KW - ultraviolet: general

UR - http://www.scopus.com/inward/record.url?scp=85065234756&partnerID=8YFLogxK

U2 - 10.3847/1538-4365/ab07c8

DO - 10.3847/1538-4365/ab07c8

M3 - Article

VL - 241

JO - Astrophysical Journal, Supplement Series

JF - Astrophysical Journal, Supplement Series

SN - 0067-0049

IS - 2

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ER -