Takashi Nagao profile picture
Takashi
Nagao
Postdoctoral Researcher, Tuorla Observatory
PhD

Biography

I am a postdoctoral researcher at University of Turku in Finland. I have obtained my PhD degree at Kyoto University in Japan on March 2019. After this, I moved to European Southern Observatory as a JSPS Overseas Research Fellow, and spent time there until November 2020. Then, I came to University of Turku.

Research

I am working on supernovae using physics of radiation and fluid as well as using spectroscopic and polarimetric observations. "How do massive stars die?", answering this question is one of my research goals.

Publications

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Intermediate-luminosity Type IIP SN 2021gmj : a low-energy explosion with signatures of circumstellar material (2024)

Monthly Notices of the Royal Astronomical Society
Murai Yuta, Tanaka Masaomi, Kawabata Miho, Taguchi Kenta, Teja Rishabh Singh, Nakaoka Tatsuya, Maeda Keiichi, Kawabata Koji S, Nagao Takashi, Moriya Takashi J, Sahu D K, Anupama G C, Tominaga Nozomu, Morokuma Tomoki, Imazawa Ryo, Inutsuka Satoko, Isogai Keisuke, Kasuga Toshihiro, Kobayashi Naoto, Kondo Sohei, Maehara Hiroyuki, Mori Yuki, Niino Yuu, Ogawa Mao, Ohsawa Ryou, Okumura Shin-ichiro, Saito Sei, Sako Shigeyuki, Takahashi Hidenori, Uno Kohki, Yamanaka Masayuki
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

The metamorphosis of the Type Ib SN 2019yvr: late-time interaction (2024)

Monthly Notices of the Royal Astronomical Society: Letters
Ferrari Lucía, Folatelli Gastón, Kuncarayakti Hanindyo, Stritzinger Maximilian, Maeda Keiichi, Bersten Melina, Román Aguilar Lili M, Sáez M Manuela, Dessart Luc, Lundqvist Peter, Mazzali Paolo, Nagao Takashi, Ashall Chris, Bose Subhash, Brennan Seán J, Cai Yongzhi, Handberg Rasmus, Holmbo Simon, Karamehmetoglu Emir, Pastorello Andrea, Reguitti Andrea, Anderson Joseph, Chen Ting-Wan, Galbany Lluís, Gromadzki Mariusz, Gutiérrez Claudia P, Inserra Cosimo, Kankare Erkki, Müller Bravo Tomás E, Mattila Seppo, Nicholl Matt, Pignata Giuliano, Sollerman Jesper, Srivastav Shubham, Young David R
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )

The enigmatic double-peaked stripped-envelope SN 2023aew (2024)

Astronomy and Astrophysics
Kangas, T.; Kuncarayakti, H.; Nagao, T.; Kotak, R.; Kankare, E.; Fraser, M.; Stevance, H.; Mattila, S.; Maeda, K.; Stritzinger, M.; Lundqvist, P.; Elias-Rosa, N.; Ferrari, L.; Folatelli, G.; Frohmaier, C.; Galbany, L.; Kawabata, M.; Koutsiona, E.; Müller-Bravo, T. E.; Piscarreta, L.; Pursiainen, M.; Singh, A.; Taguchi, K.; Teja, R. S.; Valerin, G.; Pastorello A.; Benetti S.; Cai Y.-Z.; Charalampopoulos P.; Gutiérrez C. P.; Kravtsov T.; Reguitti A.
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )

Evidence for bipolar explosions in Type IIP supernovae (2024)

Astronomy and Astrophysics
Nagao, T.; Maeda, K.; Mattila, S.; Kuncarayakti, H.; Kawabata, M.; Taguchi, K.; Nakaoka, T.; Cikota, A.; Bulla, M.; Vasylyev, S. S.; Gutiérrez, C. P.; Yamanaka, M.; Isogai, K.; Uno, K.; Ogawa, M.; Inutsuka, S.; Tsurumi, M.; Imazawa, R.; Kawabata, K. S.
(B1 Vertaisarvioitu muu artikkeli (esim. pääkirjoitus, letter, comment) tieteellisessä lehdessä)

ePESSTO+ spectroscopic classification of optical transients #2023-304 (2023)

Aamer A, Moore T, Ramsden P, Angus C, Srivastav S, Smith K, Fulton M, Ihanec N, Nagao T, Pessi P, Anderson J, Chen T, Gromadzki M, Inserra C, Kankare E, Bravo T, Nicholl M, Yaron O, Young D, Sim S, Weston J, Sheng X, Shingles L, Smartt S, Stevance H, Rhodes L, Andersson A, Gillanders J, Ramaiya S, Denneau L, Tonry J, Weiland H, Lawrence A, Siverd R, Erasmus N, Koorts W, Jordan A, Suc V, Rest A, Stubbs C
(Artikkeli ammatillisessa kokoomateoksessa (D2))

SN 2020uem: a Possible Thermonuclear Explosion within a Dense Circumstellar Medium. I. The Nature of Type IIn/Ia-CSM SNe from Photometry and Spectroscopy (2023)

Astrophysical Journal
Uno K., Maeda K., Nagao Takashi, Nakaoka T., Motohara K., Tajitsu A., Konishi M., Koyama S., Takahashi H., Tanaka M., Kuncarayakti Hanindyo, Kawabata M., Yamanaka M., Aoki K., Isogai K., Taguchi K., Ogawa M., Kawabata K.S., Yoshii Y., Miyata T., Imazawa R.
(Vertaisarvioitu alkuperäisartikkeli tai data-artikkeli tieteellisessä aikakauslehdessä (A1))

ePESSTO+ spectroscopic classification of optical transients #2023-298 (2023)

Moore T, Aamer A, Ramsden P, Angus C, Srivastav S, Fulton M, Smith K, Nagao T, Pessi P, Ihanec N, Anderson J, Chen T, Gromadzki M, Inserra C, Kankare E, Bravo T, Nicholl M, Yaron O, Young D, Sim S, Weston J, Sheng X, Shingles L, Smartt S, Stevance H, Rhodes L, Andersson A, Gillanders J, Ramaiya S, Denneau L, Tonry J, Weiland H, Lawrence A, Siverd R, Erasmus N, Koorts W, Jordan A, Suc V, Rest A, Stubbs C
(Artikkeli ammatillisessa kokoomateoksessa (D2))