A type Ia supernova at the heart of superluminous transient SN 2006gy
Jerkstrand, Anders, Maeda, Keiichi, Kawabata, Koji S
Published in Science (American Association for the Advancement of Science) (24.01.2020)
Published in Science (American Association for the Advancement of Science) (24.01.2020)
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SN 2020uem: a Possible Thermonuclear Explosion within a Dense Circumstellar Medium. I. The Nature of Type IIn/Ia-CSM SNe from Photometry and Spectroscopy
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
Published in The Astrophysical journal (01.02.2023)
Published in The Astrophysical journal (01.02.2023)
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Blazar Radio and Optical Survey (BROS): A Catalog of Blazar Candidates Showing Flat Radio Spectrum and Their Optical Identification in Pan-STARRS1 Surveys
Itoh, Ryosuke, Utsumi, Yousuke, Inoue, Yoshiyuki, Ohta, Kouji, Doi, Akihiro, Morokuma, Tomoki, Kawabata, Koji S., Tanaka, Yasuyuki T.
Published in The Astrophysical journal (01.09.2020)
Published in The Astrophysical journal (01.09.2020)
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Journal Article
Statistical Properties of the Nebular Spectra of 103 Stripped-envelope Core-collapse Supernovae
Fang 方, Qiliang 其亮, Maeda, Keiichi, Kuncarayakti, Hanindyo, Tanaka, Masaomi, Kawabata, Koji S., Hattori, Takashi, Aoki, Kentaro, Moriya, Takashi J., Yamanaka, Masayuki
Published in The Astrophysical journal (01.04.2022)
Published in The Astrophysical journal (01.04.2022)
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Narrow Fe–Kα Reverberation Mapping Unveils the Deactivated Broad-line Region in a Changing-look Active Galactic Nucleus
Noda, Hirofumi, Mineta, Taisei, Minezaki, Takeo, Sameshima, Hiroaki, Kokubo, Mitsuru, Kawamuro, Taiki, Yamada, Satoshi, Horiuchi, Takashi, Matsumoto, Hironori, Watanabe, Makoto, Morihana, Kumiko, Itoh, Yoichi, Kawabata, Koji S., Fukazawa, Yasushi
Published in The Astrophysical journal (01.01.2023)
Published in The Astrophysical journal (01.01.2023)
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Journal Article
Late-phase Spectropolarimetric Observations of Superluminous Supernova SN 2017egm to Probe the Geometry of the Inner Ejecta
Saito, Sei, Tanaka, Masaomi, Moriya, Takashi J., Bulla, Mattia, Leloudas, Giorgos, Inserra, Cosimo, Lee, Chien-Hsiu, Kawabata, Koji S., Mazzali, Paolo
Published in The Astrophysical journal (01.05.2020)
Published in The Astrophysical journal (01.05.2020)
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Journal Article
Far-ultraviolet to Near-infrared Observations of SN 2023ixf: A High-energy Explosion Engulfed in Complex Circumstellar Material
Teja, Rishabh Singh, Singh, Avinash, Basu, Judhajeet, Anupama, G. C., Sahu, D. K., Dutta, Anirban, Swain, Vishwajeet, Nakaoka, Tatsuya, Pathak, Utkarsh, Bhalerao, Varun, Barway, Sudhanshu, Kumar, Harsh, A. J., Nayana, Imazawa, Ryo, Kumar, Brajesh, Kawabata, Koji S.
Published in Astrophysical journal. Letters (01.09.2023)
Published in Astrophysical journal. Letters (01.09.2023)
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Journal Article
Spectropolarimetry of the superwind filaments of the starburst galaxy M 82 II: Kinematics of the dust surrounding the nuclear starburst
Yoshida, Michitoshi, Kawabata, Koji S, Ohyama, Youichi, Itoh, Ryosuke, Hattori, Takashi
Published in Publications of the Astronomical Society of Japan (01.08.2019)
Published in Publications of the Astronomical Society of Japan (01.08.2019)
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Journal Article
SN 2018gj: A Short Plateau Type II Supernova with Persistent Blueshifted Ha Emission
Teja, Rishabh Singh, Singh, Avinash, Sahu, D. K., Anupama, G. C., Kumar, Brajesh, Nakaoka, Tatsuya, Kawabata, Koji S, Yamanaka, Masayuki, Takey, Ali, Kawabata, Miho
Published in The Astrophysical journal (01.09.2023)
Published in The Astrophysical journal (01.09.2023)
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Journal Article
Interstellar Polarization Survey. III. Relation between Optical Polarization and Reddening in the General Interstellar Medium
Angarita, Y., Versteeg, M. J. F., Haverkorn, M., Rodrigues, C. V., Magalhães, A. M., Santos-Lima, R., Kawabata, Koji S.
Published in The Astronomical journal (01.07.2023)
Published in The Astronomical journal (01.07.2023)
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Journal Article
Magnetic Fields in the Southern Coalsack and Beyond
Versteeg, M. J. F., Angarita, Y., Magalhães, A. M., Haverkorn, M., Rodrigues, C. V., Santos-Lima, R., Kawabata, Koji S.
Published in The Astronomical journal (01.04.2024)
Published in The Astronomical journal (01.04.2024)
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Journal Article
The Low-luminosity Type IIP Supernova 2016bkv with Early-phase Circumstellar Interaction
Nakaoka, Tatsuya, Kawabata, Koji S., Maeda, Keiichi, Tanaka, Masaomi, Yamanaka, Masayuki, Moriya, Takashi J., Tominaga, Nozomu, Morokuma, Tomoki, Takaki, Katsutoshi, Kawabata, Miho, Kawahara, Naoki, Itoh, Ryosuke, Shiki, Kensei, Mori, Hiroki, Hirochi, Jun, Abe, Taisei, Uemura, Makoto, Yoshida, Michitoshi, Akitaya, Hiroshi, Moritani, Yuki, Ueno, Issei, Urano, Takeshi, Isogai, Mizuki, Hanayama, Hidekazu, Nagayama, Takahiro
Published in The Astrophysical journal (01.06.2018)
Published in The Astrophysical journal (01.06.2018)
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Journal Article
Light-curve properties of SN 2017fgc and HV SNe Ia
Burgaz, Umut, Maeda, Keiichi, Kalomeni, Belinda, Kawabata, Miho, Yamanaka, Masayuki, Kawabata, Koji S, Kawahara, Naoki, Nakaoka, Tatsuya
Published in Monthly notices of the Royal Astronomical Society (01.04.2021)
Published in Monthly notices of the Royal Astronomical Society (01.04.2021)
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Journal Article
Tomographic Imaging of the Sagittarius Spiral Arm's Magnetic Field Structure
Doi, Yasuo, Nakamura, Kengo, Kawabata, Koji S., Matsumura, Masafumi, Akitaya, Hiroshi, Coudé, Simon, Rodrigues, Claudia V., Kwon, Jungmi, Tamura, Motohide, Tahani, Mehrnoosh, Magalhães, Antonio Mario, Santos-Lima, Reinaldo, Angarita, Yenifer, Versteeg, José, Haverkorn, Marijke, Hasegawa, Tetsuo, Sadavoy, Sarah, Arzoumanian, Doris, Bastien, Pierre
Published in The Astrophysical journal (01.01.2024)
Published in The Astrophysical journal (01.01.2024)
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Journal Article
Interstellar Polarization Survey. II. General Interstellar Medium
Versteeg, M. J. F., Magalhães, A. M., Haverkorn, M., Angarita, Y., Rodrigues, C. V., Santos-Lima, R., Kawabata, Koji S.
Published in The Astronomical journal (01.03.2023)
Published in The Astronomical journal (01.03.2023)
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Journal Article
Calcium-rich Transient SN 2019ehk in a Star-forming Environment: Yet Another Candidate for a Precursor of a Double Neutron-star Binary
Nakaoka, Tatsuya, Maeda, Keiichi, Yamanaka, Masayuki, Tanaka, Masaomi, Kawabata, Miho, Moriya, Takashi J., Kawabata, Koji S., Tominaga, Nozomu, Takagi, Kengo, Imazato, Fumiya, Morokuma, Tomoki, Sako, Shigeyuki, Ohsawa, Ryou, Nagao, Takashi, Jiang, Ji-an, Burgaz, Umut, Taguchi, Kenta, Uemura, Makoto, Akitaya, Hiroshi, Sasada, Mahito, Isogai, Keisuke, Otsuka, Masaaki, Maehara, Hiroyuki
Published in The Astrophysical journal (01.05.2021)
Published in The Astrophysical journal (01.05.2021)
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Optical and near-infrared photometric and polarimetric monitoring at flaring state of BL Lacertae in 2020–2021
Hazama, Natsuko, Sasada, Mahito, Imazawa, Ryo, Fukazawa, Yasushi, Kawabata, Koji S, Nakaoka, Tatsuya, Akitaya, Hiroshi
Published in Publications of the Astronomical Society of Japan (03.10.2022)
Published in Publications of the Astronomical Society of Japan (03.10.2022)
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Journal Article
The microvariability and wavelength dependence of polarization degree/angle of BL Lacertae in the outburst 2020 to 2021
Imazawa, Ryo, Sasada, Mahito, Hazama, Natsuko, Fukazawa, Yasushi, Kawabata, Koji S, Nakaoka, Tatsuya, Akitaya, Hiroshi, Bohn, Thomas, Gangopadhyay, Anjasha
Published in Publications of the Astronomical Society of Japan (06.02.2023)
Published in Publications of the Astronomical Society of Japan (06.02.2023)
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Journal Article
Interstellar Polarization Survey. IV. Characterizing the Magnetic Field Strength and Turbulent Dispersion Using Optical Starlight Polarization in the Diffuse Interstellar Medium
Angarita, Y., Versteeg, M. J. F., Haverkorn, M., Marchal, A., Rodrigues, C. V., Magalhães, A. M., Santos-Lima, R., Kawabata, Koji S.
Published in The Astronomical journal (01.07.2024)
Published in The Astronomical journal (01.07.2024)
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