HSC16aayt: A Slowly Evolving Interacting Transient Rising for More than 100 Days

Takashi J. Moriya; Masaomi Tanaka; Tomoki Morokuma; Yen Chen Pan; Robert M. Quimby; Ji An Jiang; Kojiro Kawana; Keiichi Maeda; Ken'Ichi Nomoto; Nao Suzuki; Ichiro Takahashi; Masayuki Tanaka; Nozomu Tominaga; Masaki Yamaguchi; Naoki Yasuda; Jeff Cooke; Chris Curtin; Lluís Galbany; Santiago González-Gaitán; Chien Hsiu Lee; Giuliano Pignata; Tyler Pritchard

doi:10.3847/1538-4357/ab2f80

HSC16aayt: A Slowly Evolving Interacting Transient Rising for More than 100 Days

Takashi J. Moriya, Masaomi Tanaka, Tomoki Morokuma, Yen Chen Pan, Robert M. Quimby, Ji An Jiang, Kojiro Kawana, Keiichi Maeda, Ken'Ichi Nomoto, Nao Suzuki, Ichiro Takahashi, Masayuki Tanaka, Nozomu Tominaga, Masaki Yamaguchi, Naoki Yasuda, Jeff Cooke, Chris Curtin, Lluís Galbany, Santiago González-Gaitán, Chien Hsiu LeeGiuliano Pignata, Tyler Pritchard

SCI - Astronomy

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

We report our observations of HSC16aayt (SN 2016jiu), which was discovered by the Subaru/Hyper Suprime-Cam (HSC) transient survey conducted as part of the Subaru Strategic Program. It shows very slow photometric evolution and its rise time is more than 100 days. The optical magnitude change in 400 days remains within 0.6 mag. Spectra of HSC16aayt show a strong narrow emission line and we classify it as a Type IIn supernova. The redshift of HSC16aayt is 0.6814 ± 0.0002 from the spectra. Its host galaxy center is at 5 kpc from the supernova location and HSC16aayt might be another example of isolated Type IIn supernovae, although the possible existence of underlying star-forming activity of the host galaxy at the supernova location is not excluded.

Original language	English
Article number	70
Journal	Astrophysical Journal
Volume	882
Issue number	1
DOIs	https://doi.org/10.3847/1538-4357/ab2f80
Publication status	Published - 2019 Sept 1

Keywords

stars: mass-loss
stars: massive
supernovae: general
supernovae: individual (HSC16aayt)

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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Moriya, T. J., Tanaka, M., Morokuma, T., Pan, Y. C., Quimby, R. M., Jiang, J. A., Kawana, K., Maeda, K., Nomoto, KI., Suzuki, N., Takahashi, I., Tanaka, M., Tominaga, N., Yamaguchi, M., Yasuda, N., Cooke, J., Curtin, C., Galbany, L., González-Gaitán, S., ... Pritchard, T. (2019). HSC16aayt: A Slowly Evolving Interacting Transient Rising for More than 100 Days. Astrophysical Journal, 882(1), [70]. https://doi.org/10.3847/1538-4357/ab2f80

Moriya, TJ, Tanaka, M, Morokuma, T, Pan, YC, Quimby, RM, Jiang, JA, Kawana, K, Maeda, K, Nomoto, KI, Suzuki, N, Takahashi, I, Tanaka, M, Tominaga, N, Yamaguchi, M, Yasuda, N, Cooke, J, Curtin, C, Galbany, L, González-Gaitán, S, Lee, CH, Pignata, G & Pritchard, T 2019, 'HSC16aayt: A Slowly Evolving Interacting Transient Rising for More than 100 Days', Astrophysical Journal, vol. 882, no. 1, 70. https://doi.org/10.3847/1538-4357/ab2f80

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abstract = "We report our observations of HSC16aayt (SN 2016jiu), which was discovered by the Subaru/Hyper Suprime-Cam (HSC) transient survey conducted as part of the Subaru Strategic Program. It shows very slow photometric evolution and its rise time is more than 100 days. The optical magnitude change in 400 days remains within 0.6 mag. Spectra of HSC16aayt show a strong narrow emission line and we classify it as a Type IIn supernova. The redshift of HSC16aayt is 0.6814 ± 0.0002 from the spectra. Its host galaxy center is at 5 kpc from the supernova location and HSC16aayt might be another example of isolated Type IIn supernovae, although the possible existence of underlying star-forming activity of the host galaxy at the supernova location is not excluded.",

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author = "Moriya, {Takashi J.} and Masaomi Tanaka and Tomoki Morokuma and Pan, {Yen Chen} and Quimby, {Robert M.} and Jiang, {Ji An} and Kojiro Kawana and Keiichi Maeda and Ken'Ichi Nomoto and Nao Suzuki and Ichiro Takahashi and Masayuki Tanaka and Nozomu Tominaga and Masaki Yamaguchi and Naoki Yasuda and Jeff Cooke and Chris Curtin and Llu{\'i}s Galbany and Santiago Gonz{\'a}lez-Gait{\'a}n and Lee, {Chien Hsiu} and Giuliano Pignata and Tyler Pritchard",

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T2 - A Slowly Evolving Interacting Transient Rising for More than 100 Days

AU - Moriya, Takashi J.

AU - Tanaka, Masaomi

AU - Morokuma, Tomoki

AU - Pan, Yen Chen

AU - Quimby, Robert M.

AU - Jiang, Ji An

AU - Kawana, Kojiro

AU - Maeda, Keiichi

AU - Nomoto, Ken'Ichi

AU - Suzuki, Nao

AU - Takahashi, Ichiro

AU - Tanaka, Masayuki

AU - Tominaga, Nozomu

AU - Yamaguchi, Masaki

AU - Yasuda, Naoki

AU - Cooke, Jeff

AU - Curtin, Chris

AU - Galbany, Lluís

AU - González-Gaitán, Santiago

AU - Lee, Chien Hsiu

AU - Pignata, Giuliano

AU - Pritchard, Tyler

PY - 2019/9/1

Y1 - 2019/9/1

N2 - We report our observations of HSC16aayt (SN 2016jiu), which was discovered by the Subaru/Hyper Suprime-Cam (HSC) transient survey conducted as part of the Subaru Strategic Program. It shows very slow photometric evolution and its rise time is more than 100 days. The optical magnitude change in 400 days remains within 0.6 mag. Spectra of HSC16aayt show a strong narrow emission line and we classify it as a Type IIn supernova. The redshift of HSC16aayt is 0.6814 ± 0.0002 from the spectra. Its host galaxy center is at 5 kpc from the supernova location and HSC16aayt might be another example of isolated Type IIn supernovae, although the possible existence of underlying star-forming activity of the host galaxy at the supernova location is not excluded.

AB - We report our observations of HSC16aayt (SN 2016jiu), which was discovered by the Subaru/Hyper Suprime-Cam (HSC) transient survey conducted as part of the Subaru Strategic Program. It shows very slow photometric evolution and its rise time is more than 100 days. The optical magnitude change in 400 days remains within 0.6 mag. Spectra of HSC16aayt show a strong narrow emission line and we classify it as a Type IIn supernova. The redshift of HSC16aayt is 0.6814 ± 0.0002 from the spectra. Its host galaxy center is at 5 kpc from the supernova location and HSC16aayt might be another example of isolated Type IIn supernovae, although the possible existence of underlying star-forming activity of the host galaxy at the supernova location is not excluded.

KW - stars: mass-loss

KW - stars: massive

KW - supernovae: general

KW - supernovae: individual (HSC16aayt)

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HSC16aayt: A Slowly Evolving Interacting Transient Rising for More than 100 Days

Abstract

Keywords

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