PhD Takashi Nagao - UTU Tutkimustietojärjestelmä

Takashi Nagao
PhD

Tuorlan observatorio (fysiikan ja tähtitieteen laitos)

takashi.nagao@utu.fi

ORCID-tunniste: https://orcid.org/0000-0002-3933-7861

Biografia

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.

Tutkimus

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.

Julkaisut

2/3

ePESSTO+ spectroscopic classification of optical transients #2023-293 (2023) Transient Name Server: AstroNote Moore T, Ramsden P, Aamer A, Smith K, Fulton M, Benetti S, Srivastav S, Galbany L, Killestein T, Nagao T, Sollerman J, Anderson J, Bravo T, Chen T, Gromadzki M, Inserra C, Kankare E, Nicholl M, Young D, Zimmerman E, Yaron O, 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
(D2 Artikkeli ammatillisessa kokoomateoksessa)
ePESSTO+ spectroscopic classification of optical transients #2023-298 (2023) Transient Name Server: AstroNote 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
(D2 Artikkeli ammatillisessa kokoomateoksessa)
ePESSTO+ spectroscopic classification of optical transients #2023-300 (2023) Transient Name Server: AstroNote Ramsden P, Aamer A, Moore T, Srivastav S, Angus C, Fulton M, Smith K, Pessi P, Ihanec N, Nagao T, 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
(D2 Artikkeli ammatillisessa kokoomateoksessa)
ePESSTO+ spectroscopic classification of optical transients #2023-304 (2023) Transient Name Server: AstroNote 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
(D2 Artikkeli ammatillisessa kokoomateoksessa)
Photometry and spectroscopy of the Type Icn supernova 2021ckj. The diverse properties of the ejecta and circumstellar matter of Type Icn supernovae (2023)
- Astronomy and Astrophysics
Nagao T, Kuncarayakti H, Maeda K, Moore T, Pastorello A, Mattila S, Uno K, Smartt SJ, Sim SA, Ferrari L, Tomasella L, Anderson JP, Chen TW, Galbany L, Gao H, Gromadzki M, Gutiérrez CP, Inserra C, Kankare E, Magnier EA, Muller-Bravo TE, Reguitti A, Young DR
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )
SN 2020uem: a Possible Thermonuclear Explosion within a Dense Circumstellar Medium (II). The Properties of the CSM from Polarimetry and Light-curve Modeling (2023)
- Astrophysical Journal
Uno Kohki, Nagao Takashi, Maeda Keiichi, Kuncarayakti Hanindyo, Tanaka Masaomi, Kawabata Koji S., Nakaoka Tatsuya, Kawabata Miho, Yamanaka Masayuki, Aoki Kentaro, Isogai Keisuke, Ogawa Mao, Tajitsu Akito, Imazawa Ryo
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )
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 Kohki, Maeda Keiichi, Nagao Takashi, Nakaoka, Tatsuya, Motohara Kentaro, Tajitsu Akito, Konishi Masahiro, Koyama Shuhei, Takahashi, Hidenori, Tanaka, Masaomi, Kuncarayakti, Hanindyo, Kawabata Miho, Yamanaka Masayuki, Aoki Kentaro, Isogai, Keisuke, Taguchi Kenta, Ogawa Mao, Kawabata, Koji S., Yoshii, Yuzuru, Miyata Takashi, Imazawa Ryo
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )
Spectropolarimetry of Type II supernovae: I. Sample, observational data, and interstellar polarization (2023)
- Astronomy and Astrophysics
Nagao Takashi, Mattila Seppo, Kotak Rubina, Kuncarayakti Hanindyo
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )
Spectroscopic observation of SN 2023awp #2023-28 (2023) Transient Name Server: AstroNote Salmaso I., Cappellaro E., Benetti S., Pastorello A., Reguitti A., Nagao T., Stritzinger M.
(D2 Artikkeli ammatillisessa kokoomateoksessa)
Transient Classification Report for 2023-02-14 #2023-360 (2023) Transient Name Server Classification Report Nagao T., Uno K., Maeda K.
(D2 Artikkeli ammatillisessa kokoomateoksessa)
Transient Classification Report for 2023-02-16 #2023-375 (2023) Transient Name Server Classification Report Taguchi K., Kawabata M., Maeda K., Uno K., Nagao T.
(D2 Artikkeli ammatillisessa kokoomateoksessa)
Transient Classification Report for 2023-02-26 #2023-438 (2023) Transient Name Server Classification Report Taguchi K., Uno K., Nagao T., Maeda K.
(D2 Artikkeli ammatillisessa kokoomateoksessa)
Transient Classification Report for 2023-09-21 #2023-2349 (2023) Transient Name Server Classification Report Nagao T., Kuncarayakti H., Maeda K.
(D2 Artikkeli ammatillisessa kokoomateoksessa)
Transient Classification Report for 2023-09-21 #2023-2350 (2023) Transient Name Server Classification Report Nagao T., Kuncarayakti H., Uno K., Maeda K.
(D2 Artikkeli ammatillisessa kokoomateoksessa)
Transient Classification Report for 2023-09-28 #2023-2426 (2023) Transient Name Server Classification Report Nagao T., Kuncarayakti H., Charalampopoulos P., Kotak R., Kangas T.
(D2 Artikkeli ammatillisessa kokoomateoksessa)
Transient Classification Report for 2023-09-28 #2023-2427 (2023) Transient Name Server Classification Report Nagao T., Kuncarayakti H., Charalampopoulos P., Kotak R., Kangas T.
(D2 Artikkeli ammatillisessa kokoomateoksessa)
Transient Classification Report for 2023-09-30 #2023-2451 (2023) Transient Name Server Classification Report Nagao T., Kuncarayakti H.
(D2 Artikkeli ammatillisessa kokoomateoksessa)
Diversity of Dust Properties in External Galaxies Confirmed by Polarization Signals from Type II Supernovae (2022)
- Astrophysical Journal Letters
Nagao Takashi, Patat Ferdinando, Maeda Keiichi, Baade Dietrich, Mattila Seppo, Taubenberger Stefan, Kotak Rubina, Cikota Aleksandar, Kuncarayakti Hanindyo, Bulla Mattia, Maund Justyn
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )
Late-time H/He-poor Circumstellar Interaction in the Type Ic Supernova SN 2021ocs: An Exposed Oxygen-Magnesium Layer and Extreme Stripping of the Progenitor (2022)
- Astrophysical Journal Letters
Kuncarayakti H., Maeda K., Dessart L., Nagao T, Fulton M, Gutiérrez C, Huber M.E., Young D.R., Kotak R, Mattila S., Anderson J.P., Ferrari L., Folatelli G., Gao H., Magnier E., Smith K.W., Srivastav S.
(A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )
NUTS Transient Classification Report for 2022-10-06 #2022-2910 (2022) Transient name server Classification report Nagao Takashi, Pastorello Andrea, Reguitti Andrea
(D2 Artikkeli ammatillisessa kokoomateoksessa)