Establishing Next Generation UV-Opt-IR Standard Star Network with Hubble Space Telescope

• Project/Area Number: 18K03696
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 16010:Astronomy-related
• Research Institution: The University of Tokyo
• Principal Investigator: 鈴木 尚孝 東京大学, カブリ数物連携宇宙研究機構, 客員准科学研究員 (20722804)
• Project Period (FY): 2018-04-01 – 2024-03-31
• Project Status: Granted (Fiscal Year 2022)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2022: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000); Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
• Keywords: 超新星 / 暗黒エネルギー / 宇宙望遠鏡 / すばる望遠鏡 / 赤外線天文学 / 白色矮星 / 較正 / 黒体輻射 / JWST / 標準星 / ハッブル宇宙望遠鏡 / 観測的宇宙論 / 精密宇宙論

Outline of Annual Research Achievements

本研究では、すべての宇宙観測の礎となる、星の明るさの較正を紫外、可視、赤外の広い波長域で１％以下の誤差で正確に求め、世界基準の構築を目指している。現在は１％の精度は達成できておらず、宇宙を加速膨張させている謎の暗黒エネルギーの精密測定の障害となっている。星の明るさの較正は、従来の方法では精度に限界が来ており、新しい手法の導入が望まれる。我々はこの精度を一桁向上させることを目標としている。
黒体放射のスペクトルを持つ白色矮星の観測を紫外から可視光、赤外線まで観測するには宇宙望遠鏡による観測が必要である。ハッブル宇宙望遠鏡の観測時間を獲得し、ジャイロの故障により、スケジュールに遅れが出てしまったが、紫外、赤外波長領域の撮像データ及び分光データを取得することができた。
地上大型望遠鏡による追観測も進めている。新型コロナ感染症の影響で望遠鏡群が稼働していない時期があり、観測が実行されない時期があった。また、悪天候等により観測できない時期が続いたが、日本のすばる望遠鏡、カリフォルニア大学のケック望遠鏡で分光観測することができ、これまでのリストに加えることができた。
欧州のGAIA衛星の分光データが公開され、英国から共同研究の申し出があり、新たにGAIAデータから見つけられた２００個の天体をカリフォルニア大学のリック天文台、欧州のVLT、米国のSOAR望遠鏡を使って分光観測を進めている。また、赤外領域での観測も進めており、可視光から赤外までの統一を目指し、鋭意観測を続けている。

Current Status of Research Progress

3: Progress in research has been slightly delayed.

Reason

地上望遠鏡による追観測は望遠鏡時間を何度も獲得したが、新型コロナ感染症の影響で望遠鏡の稼働が止まってしまい、観測できなかった時期があった。また、ハワイ島マウナケア山頂の雪による悪天候や、機器の故障等により、不運にも２０晩以上観測機会を失ってしまった。その一方、欧州の位置天文衛星GAIAの新しいデータDR３が公開され、我々の天体の距離と測光の精度が向上した。これまでのデータと合わせ引き続き解析を進めている。

Strategy for Future Research Activity

これまで得られたハッブル宇宙望遠鏡のデータ解析と地上望遠鏡による分光データの追観測データを統合し、また新しいGAIA衛星のデータとも合わせ総合的な解析を進めている。今後とも引き続き望遠鏡時間を獲得すると共に、観測を継続する。分光データが揃い次第、解析と論文化を進める。JWSTの解析チームと協力し、Cycle２での観測計画に応募した。赤外望遠鏡、LSSTでの標準観測を目指し、データ提供を展開して行く。

Research Products

• [Int'l Joint Research] LPNHE(フランス)
• [Int'l Joint Research] Lawrence Berkeley National Lab(米国)
• [Int'l Joint Research] Australia National University(オーストラリア)
• [Int'l Joint Research] Lawrence Berkeley National Lab/Space Telescope Science Institute/University of Hawaii(米国)
• [Int'l Joint Research] LPNHE(フランス)
• [Int'l Joint Research] Lawrence Berkeley National Laboratory/University of California, Berkeley(米国)
• [Int'l Joint Research] Space Telescope Science Institute/Lawrence Berkeley National Laboratory/University of California, Berkeley(米国)
• [Int'l Joint Research] LPNHE(フランス)
• [Int'l Joint Research] Space Telescope Science Institute/Lawrence Berkeley National Laboratory(米国)
• [Int'l Joint Research] LPNHE(フランス)
• [Journal Article] Bump Morphology of the CMAGIC Diagram (2023)
  • Author(s): Aldoroty L.、Wang L.、Hoeflich P.、Yang J.、Suntzeff N.、Perlmutter S.、Ponder K. A.、Rabinowitz D.、Rigault M.、Rubin D.、Runge K.、Saunders C.、Smadja G.、Suzuki N. et al.
  • Journal Title: The Astrophysical Journal Volume: 948 Issue: 1 Pages: 10-10
  • DOI: 10.3847/1538-4357/acad78
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Second Data Release of the COSMOS Lyα Mapping and Tomography Observations: The First 3D Maps of the Detailed Cosmic Web at 2.05 < z < 2.55 (2022)
  • Author(s): Horowitz Benjamin、Lee Khee-Gan、Ata Metin、Meller Thomas、Krolewski Alex、Prochaska J. Xavier、Hennawi Joseph F.、White Martin、Schlegel David、Rich R. Michael、Nugent Peter E.、Suzuki Nao、Kashino Daichi、Koekemoer Anton M.、Lemaux Brian C.
  • Journal Title: The Astrophysical Journal Supplement Series Volume: 263 Issue: 2 Pages: 27-27
  • DOI: 10.3847/1538-4365/ac982d
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Uniform Recalibration of Common Spectrophotometry Standard Stars onto the CALSPEC System Using the SuperNova Integral Field Spectrograph (2022)
  • Author(s): Rubin David、Aldering G.、Antilogus P.、Aragon C.、Bailey S.、Baltay C.、Bongard S.、Boone K.、Buton C.、Copin Y.、Dixon S.、Fouchez D.、Gangler E.、Gupta R.、Hayden B.、Hillebrandt W.、Kim A. G.、Kowalski M.、Nordin J.、Pain R.、Perlmutter S.、Suzuki N. et al.
  • Journal Title: The Astrophysical Journal Supplement Series Volume: 263 Issue: 1 Pages: 1-1
  • DOI: 10.3847/1538-4365/ac7b7f
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Conceptual design of the Keck Wide Field Imager (KWFI) (2022)
  • Author(s): Radovan Matthew V.、Bertz Robert、Cooke Jeff、Dekany Richard、Delacroix Alex、Fucik Jason R.、Gillingham Peter R.、Krishnan Shanti、Poole Gregory、Seikel Ray、Smith Roger、Suzuki Nao、Travouillon Tony
  • Journal Title: SPIE Volume: 12184 Pages: 20-20
  • DOI: 10.1117/12.2630502
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A Probabilistic Autoencoder for Type Ia Supernova Spectral Time Series (2022)
  • Author(s): Stein George、Seljak Uros、Aldering G.、Bongard S.、Boone K.、Buton C.、Karmen M.、Kim A. G.、Kowalski M.、Kesters D.、Leget P.-F.、Mondon F.、Nordin J.、Pain R.、Pecontal E.、Pereira R.、Perlmutter S.、Ponder K. A.、Rigault M.、Rubin D.、Saunders C.、Smadja G.、Suzuki N. et al.
  • Journal Title: The Astrophysical Journal Volume: 935 Issue: 1 Pages: 5-5
  • DOI: 10.3847/1538-4357/ac7c08
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] MUSSES2020J: The Earliest Discovery of a Fast Blue Ultraluminous Transient at Redshift 1.063 (2022)
  • Author(s): Jiang Ji-an、Yasuda Naoki、Maeda Keiichi、Tominaga Nozomu、Doi Mamoru、Yoachim Peter、Uno Kohki、Moriya Takashi J.、Kumar Brajesh、Pan Yen-Chen、Tanaka Masayuki、Tanaka Masaomi、Nomoto Ken’ichi、Jha Saurabh W.、Ruiz-Lapuente Pilar、Jones David、Shigeyama Toshikazu、Suzuki Nao et al.
  • Journal Title: The Astrophysical Journal Letters Volume: 933 Issue: 2 Pages: L36-L36
  • DOI: 10.3847/2041-8213/ac7390
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Third data release of the Hyper Suprime-Cam Subaru Strategic Program (2022)
  • Author(s): Aihara Hiroaki et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 74 Issue: 2 Pages: 247-272
  • DOI: 10.1093/pasj/psab122
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Constraints on the Rate of Supernovae Lasting for More Than a Year from Subaru/Hyper Suprime-Cam (2021)
  • Author(s): Moriya Takashi J.、Jiang Ji-an、Yasuda Naoki、Kokubo Mitsuru、Kawana Kojiro、Maeda Keiichi、Pan Yen-Chen、Quimby Robert M.、Suzuki Nao、Takahashi Ichiro、Tanaka Masaomi、Tominaga Nozomu、Nomoto Ken’ichi、Cooke Jeff、Galbany Lluis、Gonzalez-Gaitan Santiago、Lee Chien-Hsiu、Pignata Giuliano
  • Journal Title: The Astrophysical Journal Volume: 908 Issue: 2 Pages: 249-249
  • DOI: 10.3847/1538-4357/abcfc0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Twins Embedding of Type Ia Supernovae. I. The Diversity of Spectra at Maximum Light (2021)
  • Author(s): Boone K.,Aldering G.,Antilogus P.,Aragon C.,Bailey S et al.
  • Journal Title: The Astrophysical Journal Volume: 912 Issue: 1 Pages: 70-70
  • DOI: 10.3847/1538-4357/abec3c
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Twins Embedding of Type Ia Supernovae. II. Improving Cosmological Distance Estimates (2021)
  • Author(s): Boone K.、Aldering G.、Antilogus P.、Aragon C.、Bailey S. et al.
  • Journal Title: The Astrophysical Journal Volume: 912 Issue: 1 Pages: 71-71
  • DOI: 10.3847/1538-4357/abec3b
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The HST See Change Program. I. Survey Design, Pipeline, and Supernova Discoveries* (2021)
  • Author(s): Hayden Brian、Rubin David、Boone Kyle et al.
  • Journal Title: The Astrophysical Journal Volume: 912 Issue: 2 Pages: 87-87
  • DOI: 10.3847/1538-4357/abed4d
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Probing Feedback via IGM tomography and the Lyα Forest with Subaru PFS, TMT/ELT, and JWST (2021)
  • Author(s): Nagamine Kentaro、Shimizu Ikkoh、Fujita Katsumi、Suzuki Nao、Lee Khee-Gan、Momose Rieko、Mukae Shiro、Liang Yongming、Kashikawa Nobunari、Ouchi Masami、Silverman John D.
  • Journal Title: The Astrophysical Journal Volume: 914 Issue: 1 Pages: 66-66
  • DOI: 10.3847/1538-4357/abfa16
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Optical Spectroscopy of Dual Quasar Candidates from the Subaru HSC-SSP program (2021)
  • Author(s): Tang S.、Silverman J.D.、Ding X.、Li J.、Lee K.-G.、Strauss M.A.、Goulding A.、Schramm M.、Kawinwanichakij L.、Xavier P.J.、Hennawi J.F.、Imanishi M.、Iwasawa K.、Toba Y.、Kayo I.、Oguri M.、Matsuoka Y.、Onoue M.、Jahnke K.、Ichikawa K.、Hartwig T.、Kashikawa N.、Kawaguchi Toshihiro、et al.
  • Journal Title: The Astrophysical Journal Volume: 922 Issue: 1 Pages: 83-83
  • DOI: 10.3847/1538-4357/ac1ff0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A Reference Survey for Supernova Cosmology with the Nancy Grace Roman Space Telescope (2021)
  • Author(s): Rose, B. M, Baltay, C., Hounsell, R., Macias, P., Rubin, D., Scolnic, D et al.
  • Journal Title: arxiv Volume: 2111.03081 Pages: 03081-03081
  • Open Access / Int'l Joint Research
• [Journal Article] Photometric classification of Hyper Suprime-Cam transients using machine learning (2020)
  • Author(s): Takahashi Ichiro、Suzuki Nao、Yasuda Naoki、Kimura Akisato、Ueda Naonori、Tanaka Masaomi、Tominaga Nozomu、Yoshida Naoki
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 72 Issue: 5 Pages: 22-22
  • DOI: 10.1093/pasj/psaa082
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Dual Supermassive Black Holes at Close Separation Revealed by the Hyper Suprime-Cam Subaru Strategic Program (2020)
  • Author(s): Silverman J.D., Tang S., Lee K.-G., T. Hartwig, A. Goulding, M.A. Strauss, M. Schramm, X. Ding, R. Riffel, S. Fujimoto, C. Hikage, M. Imanishi, K. Iwasawa, K. Jahnke, I. Kayo, N. Kashikawa, T. Kawaguchi, 他16名
  • Journal Title: The Astrophysical Journal Volume: 899 Issue: 2 Pages: 154-154
  • DOI: 10.3847/1538-4357/aba4a3
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Three-dimensional Distribution Map of H i Gas and Galaxies around an Enormous Lyα Nebula and Three QSOs at z = 2.3 Revealed by the H i Tomographic Mapping Technique (2020)
  • Author(s): Mukae S., Ouchi M., Cai Z., Lee K-G., and 20 coauthors including Suzuki, Nao
  • Journal Title: The Astrophysical Journal Volume: 896 Issue: 1 Pages: 45-45
  • DOI: 10.3847/1538-4357/ab8db7
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The SNEMO and SUGAR Companion Data Sets (2020)
  • Author(s): Aldering G.、Antilogus P.、Aragon C. and 41 coauthors including Suzuki, Nao
  • Journal Title: Research Notes of the AAS Volume: 4 Issue: 5 Pages: 63-63
  • DOI: 10.3847/2515-5172/ab8fa5
  • Open Access / Int'l Joint Research
• [Journal Article] Strong dependence of Type Ia supernova standardization on the local specific star formation rate (2020)
  • Author(s): Rigault M., Brinnel V., Aldering G., Antilogus P. and 39 coauthors including Suzuki, Nao
  • Journal Title: Astronomy & Astrophysics Volume: 644 Pages: 176-176
  • DOI: 10.1051/0004-6361/201730404
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The HSC-SSP Transient Survey: Implications from Early Photometry and Rise Time of Normal Type Ia Supernovae (2020)
  • Author(s): Jiang Ji-an、Yasuda Naoki、Maeda Keiichi、Doi Mamoru、Shigeyama Toshikazu、Tominaga Nozomu、Tanaka Masaomi、Moriya Takashi J.、Takahashi Ichiro、Suzuki Nao、Morokuma Tomoki、Nomoto Ken’ichi
  • Journal Title: The Astrophysical Journal Volume: 892 Issue: 1 Pages: 25-37
  • DOI: 10.3847/1538-4357/ab76cb
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Rapidly Evolving Transients from the Hyper Suprime-Cam SSP Transient Survey (2020)
  • Author(s): Tampo Yusuke、Tanaka Masaomi、Maeda Keiichi、Yasuda Naoki、Tominaga Nozomu、Jiang Ji-an、Moriya Takashi J.、Morokuma Tomoki、Suzuki Nao、Takahashi Ichiro、Kokubo Mitsuru、Kawana Kojiro
  • Journal Title: The Astrophysical Journal Volume: 894 Issue: 1 Pages: 27-46
  • DOI: 10.3847/1538-4357/ab7ccc
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] SUGAR: An improved empirical model of Type Ia supernovae based on spectral features (2020)
  • Author(s): Leget P.-F., Gangler E., Mondon F., and 41 coauthors in alphabetical order including Suzuki, Nao
  • Journal Title: Astronomy & Astrophysics Volume: 636 Pages: 46-71
  • DOI: 10.1051/0004-6361/201834954
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Hyper Suprime-Cam SSP transient survey in COSMOS: Overview (2019)
  • Author(s): Yasuda Naoki、Tanaka Masaomi、Tominaga Nozomu、Jiang Ji-an、Moriya Takashi J、Morokuma Tomoki、Suzuki Nao、Takahashi Ichiro、Yamaguchi Masaki S、Maeda Keiichi、Sako Masao、Ikeda Shiro、Kimura Akisato、Morii Mikio、Ueda Naonori、Yoshida Naoki、Lee Chien-Hsiu、Suyu Sherry H、Komiyama Yutaka、Regnault Nicolas、Rubin David
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 71 Issue: 4 Pages: 74-91
  • DOI: 10.1093/pasj/psz050
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] First Release of High-Redshift Superluminous Supernovae from the Subaru HIgh-Z SUpernova CAmpaign (SHIZUCA). I. Photometric Properties (2019)
  • Author(s): Moriya Takashi J.、Tanaka Masaomi、Yasuda Naoki、Jiang Ji-an、Lee Chien-Hsiu、Maeda Keiichi、Morokuma Tomoki、etc.
  • Journal Title: The Astrophysical Journal Supplement Series Volume: 241 Issue: 2 Pages: 16-16
  • DOI: 10.3847/1538-4365/ab07c5
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] First Release of High-redshift Superluminous Supernovae from the Subaru HIgh-Z SUpernova CAmpaign (SHIZUCA). II. Spectroscopic Properties (2019)
  • Author(s): Curtin Chris、Cooke Jeff、Moriya Takashi J.、Tanaka Masayuki、Quimby Robert M.、Bernard Stephanie R.、Galbany Lluis、Jiang Ji-an、Lee Chien-Hsiu、Maeda Keiichi、Morokuma Tomoki、etc.
  • Journal Title: The Astrophysical Journal Supplement Series Volume: 241 Issue: 2 Pages: 17-17
  • DOI: 10.3847/1538-4365/ab07c8
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] HSC16aayt: A Slowly Evolving Interacting Transient Rising for More than 100 Days (2019)
  • Author(s): Moriya T. J., Tanaka M., Morokuma T., Pan Y.-C., Quimby R. M., Jiang J., Kawana K., Maeda K., Nomoto K., Suzuki Nao, Takahashi I., Tanaka M., Tominaga N., Yamaguchi M., Yasuda N., Cooke J., Curtin C., Galbany L., Gonzalez-G. S.、Lee C.-H.、Pignata G., Pritchard T.
  • Journal Title: The Astrophysical Journal Volume: 882 Issue: 1 Pages: 70-81
  • DOI: 10.3847/1538-4357/ab2f80
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Blackbody Stars (2018)
  • Author(s): Suzuki Nao、Fukugita Masataka
  • Journal Title: The Astronomical Journal Volume: 156 Issue: 5 Pages: 219-219
  • DOI: 10.3847/1538-3881/aac88b
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] Modeling the Diversity of Transient Light Curves through PCA (2022)
  • Author(s): Suzuki, Nao
  • Organizer: Exploring the Transient Universe with the Nancy Grace Roman Space Telescope
  • Int'l Joint Research
• [Presentation] Searching for Close Binary System in Milky Way Galaxy as Potential Gravitational Wave Sources (2022)
  • Author(s): Suzuki, Nao
  • Organizer: Gravitational wave physics and astronomy: Genesis
  • Int'l Joint Research
• [Presentation] Reducing Systematic Errors for SNIa Cosmology (Blackbody Stars) (2019)
  • Author(s): Suzuki, Nao
  • Organizer: SCAM-2019: SNIa-Cosmology Analysis Meeting
  • Int'l Joint Research / Invited
• [Presentation] HSC SNIa Cosmology Program (2019)
  • Author(s): Suzuki, Nao
  • Organizer: Subaru 20th Anniversary Symposium
  • Int'l Joint Research
• [Presentation] Time Domain Science in the Era of ELTs (2019)
  • Author(s): Suzuki, Nao
  • Organizer: Extremely Big Eyes on the Early Universe
  • Int'l Joint Research / Invited
• [Presentation] HSC Transient Survey (2019)
  • Author(s): Suzuki, Nao
  • Organizer: Enabling Multi-Messenger Astrophysics in the Big Data Era
  • Int'l Joint Research
• [Presentation] Perfect Blackbody Spectra for Next Generation UV-Opt-IR Calibration Standard Star Network (2018)
  • Author(s): Suzuki, Nao
  • Organizer: International Astronomical Union
  • Int'l Joint Research