Accepted Proposals for Semester S24B
The Call for Proposals for Semester S24B received 134 submitted proposals for the Normal and Intensive Programs requesting a total of 301.6 nights.
After screening by TAC, 89.95 (including 6 ToO) nights were allocated to the following 55 proposals.
In addition, 12.5 nights are assigned to IRD SSP Project, 3.0 nights are assigned to Service Program observations and 6.0 nights are assigned to one on-going Intensive Programs: S24A-023(6.0 nights).
Subaru Normal and Intensive Programs
| ID | PI | Proposal Title | Inst | Nts |
|---|---|---|---|---|
| S24B-001 | Taichi Uyama | Identifying the hydrogen emissions from the protoplanet AB Aur b (resub) | VAMPIRES+SCExAO+NGS | 0.5 |
| S24B-003 | Miho Ishigaki | HDS follow-up of dynamically informative Very Metal-Poor Stars | HDS | 3 |
| S24B-006 | Shogo Nishiyama | The Origin of Late-type Stars Orbiting Galactic Supermassive BH Sgr A* | IRCS+NGS-AO | 2 |
| S24B-007 | Takashi Moriya | Exploring the long-timescale transient frontier with HSC at SXDS: Season 5 | HSC-Q | 0.9 Queue (1.3) |
| S24B-014 | Michitoshi Yoshida | Optical-infrared follow-up observations of gravitational wave sources | HSC&FOCAS&MOIRCS&IRCS&HDS | 2.5 ToO |
| S24B-016 | Tadayuki Kodama | Proto-super-clusters at z=3.3 and associated HI gas traced by dual NB imaging | HSC-Q+MOIRCS | 1.4 Queue (2.0) +1.5 |
| S24B-019 | Kosuke Takahashi | Confirmation of red monsters; ultra-massive quiescent galaxies at z~5 | MOSFIRE(Keck) | 0.5 |
| S24B-021 | Shunta Shimizu | Simultaneous Lyα and Hα Observations at z~6 with Subaru and JWST | HSC-Q | 1.3 Queue (1.9) |
| S24B-023 | Kazuki Daikuhara | Where do stars form?: spatially resolved Hα imaging for Spiderweb protocluster | IRCS+LGS-AO | 1.5 |
| S24B-024 | Masato Sato | Unveiling the Nature of Electron-Capture Supernovae from Nebular Spectra | FOCAS | 1 ToO |
| S24B-025 | Yoshiki Matsuoka | Unveiling Obscured Growth of Supermassive BHs in the Epoch of Reionization | FOCAS | 5 |
| S24B-026 | Mariko Kubo | Origin of giant ellipticals in the cosmic web at z ~ 3 | MOIRCS | 2.5 |
| S24B-029 | Kohei Hattori | Finding the most highly Eu-enhanced stars in the Universe | HDS | 2 |
| S24B-030 | Keiichi Maeda | Searching for minute-timescale variability in a luminous-fast-blue transient | FOCAS | 2 ToO |
| S24B-032 | Tomoyuki Kudo | Water ice mapping in Protoplanetary Disks by TIR Polarization Imaging | IRCS+NGS-AO | 2 |
| S24B-037 | Akira Arai | Lithium Production in Thermonuclear Runaway of Classical/Recurrent Novae | HDS | 1.5 ToO |
| S24B-038 | Kohei Ichikawa | Redshift Identification of Most Distant Radio Quasar Candidates at z=7.4-9.2 | MOIRCS | 3 |
| S24B-039 | Tomoki Morokuma | Follow-Up Spectroscopy for Northern Fading Quasars | FOCAS | 1 |
| S24B-040 | Rieko Momose | Pilot study for the reionization scenario through LAE overdensity searches | HSC-Q | 3.5 Queue (5.0) |
| S24B-041 | Keiichi Maeda | Catching the first spectroscopic signatures of explosive transients | GMOS(Gemini-N+S) | 2 |
| S24B-044 | Yoshiharu Shinnaka | Intrinsic chemical composition of dynamically new comets II: case for C/2021 S3 (PanSTARRS) and C/2023 A3 (Tsuchinshan-ATLAS) | HDS | 1 |
| S24B-046 | Takanori Sakamoto | Short GRBs as a Key to Understand Population of Merging Neutron Stars | IRCS+NGS-AO&FOCAS&HSC | 1 ToO |
| S24B-049 | Masato Onodera | Star formation in a cluster fed by the cold-mode gas accretion at z=2.5 | MOIRCS | 1 |
| S24B-050 | Takanori Sakamoto | Probing the Cosmic Re-ionization History using GRBs | IRCS+NGS-AO&FOCAS | 1 ToO |
| S24B-052 | Xiaoyang Chen | Investigation onto extremely fast "fossil outflow" driven by past AGN activity | FOCAS | 1.5 |
| S24B-057 | Stevanus Kristianto Nugroho | 3D Atmosphere of an Ultra-hot Jupiter | IRD+NGS-AO | 1 |
| S24B-061 | Mitsuhiko Honda | Water ice grain depletion in the YSO envelope/disk surface ? | IRCS+LGS-AO | 1 |
| S24B-062 | Taichi Uyama | Benchmark BDs around well-studied accelerating detached eclipsing binaries | CHARIS+SCExAO+NGS | 1.5 |
| S24B-068 | Keiichi Maeda | Morphing Supernovae: Filling in The Key Missing Piece of Stellar Evolution | FOCAS | 1.5 |
| S24B-069 | Fumihiro Naokawa | Survey of M31 eclipsing binaries: Toward a 1% distance measurement | HSC | 3.5 |
| S24B-071 | Satoshi Yamanaka | Dual NB emitters: A new wide-field search for high-z faint AGNs | FOCAS | 0.5 |
| S24B-072 | Wako Aoki | Nitrogen abundances in unevolved very metal-poor stars | HDS | 1 |
| S24B-073 | Takuma Suda | Unveiling Galactic Dawn with Very Metal-Poor Turn-off Stars | HDS | 1 |
| S24B-075 | Takafumi Ootsubo | Characterizing (3200) Phaethon in near UV | FOCAS | 1 |
| S24B-077 | Yoshihiro Takeda | Mass-dependent Diversity of Protoclusters at z~4 detected by Deep-Learning | MOIRCS | 2 |
| S24B-078 | Teruyuki Hirano | Obliquity Measurement for a T-Tauri Star with the Youngest Transiting Planet | IRD+NGS-AO | 1 |
| S24B-080 | Ken Osato | ♦ Extended Wide Imaging with Subaru HSC of the Euclid Sky (WISHES+) | HSC | 1.3 Queue (1.8) |
| S24B-081 | Kana Morokuma | What makes massive galaxies passive in a protocluster at z~6? | DEIMOS(Keck) | 1 |
| S24B-083 | Nozomu Tominaga | High-cadence transient survey: Variations of last moment of massive stars | HSC+GMOS(Gemini-N) | 3.0+1.0 |
| S24B-087 | Koki Kakiichi | Photometric IGM tomography of the reionization epoch in the COSMOS field | HSC-Q | 1.8 Queue (2.6) |
| S24B-095 | Jose Manuel Perez Martinez | Revealing hidden type 2 AGNs in the maturing Spiderweb protocluster | MOIRCS | 1 |
| S24B-099 | Huanyu Teng | Obliquity and Atmospheric Loss of Planet in Young System | HDS | 1 |
| S24B-106 | Vincent Deo | The Three Little PIGSS: A Polarimetric InvestiGation of Self-luminous Substellar companions | CHARIS+SCExAO+NGS | 1.5 |
| S24B-107 | Hajime Kawahara | Planetary Mass Subdwarf Atmosphere by Subaru and JWST | IRD+NGS-AO | 1.5 |
| S24B-110 | Masafusa Onoue | Mass Distribution of Supermassive Black Holes at z=7 | MOIRCS | 2 |
| S24B-112 | Hideyo Kawakita | D/H Ratios in Cometary Water and Methane in C/2023 A3 (Tsuchinshan-ATLAS): Early History of the Solar System | NIRSPEC(Keck) | 1 |
| S24B-116 | Yoshihisa Suzuki | Spectroscopic follow-up of new MW satellites discovered by HSC | FOCAS | 1 |
| S24B-121 | Yugo Kawai | Obliquity measurement to search for protoplanetary disk misalignment | MAROON-X(Gemini) | 0.55 |
| S24B-123 | Yui Kawashima | High-precision, high-resolution spectroscopy of a benchmark brown dwarf | IRD+NGS-AO | 0.5 |
| S24B-125 | Daichi Kashino | Testing Local Reionization around Galaxies | FOCAS | 1 |
| S24B-129 | Qianfan Xing | Low-α metal-poor stars with abundances from pair-instability supernovae | HDS | 0.5 |
| S24B-131 | Patryk Sofia Lykawka | An Ultra-Deep Survey for New Uranus Moons | HSC | 0.3 |
| S24B-133 | John Livingston | Constraining Formation and Evolution with Evaporating Planet V1298 Tau d | IRD+NGS-AO | 1 |
| S24B-134 | Masayuki Kuzuhara | Deep Direct Imaging of Candidate Planets around Young Sun-like Stars with Proper Motion Accelerations | CHARIS+SCExAO+NGS | 1.5 |
| S24B-135 | Yongming Liang | Interplay between the Most Extremely Concentrated Quasars and Galaxies | MOIRCS | 2 |
The number of nights in ( ) for the HSC Queue programs indicates 1/0.7 times requested observation nights to consider the weather factor.
The instruments and nights written in italics are those of Gemini or Keck Telescopes, with which we have time-exchange programs.
♦ This proposal has been accepted in the category of Intensive Program and a total of 15.1 nights will be allocated from S24B to S27A.
UH Programs
| ID | PI | Proposal Title | Inst | Nts |
|---|---|---|---|---|
| S24B-UH007-A1 | D.B. Sanders | Hawaii+Euclid: extragalactic deep fields in the northern & southern hemispheres | HSC | 3 |
| S24B-UH008-B | Yaguang Li | Setting the fundamental mass and radius scale of oscillating red giants | HDS | 2 |
| S24B-UH013-A | Maria Vincent | Further exploration of Dracula's Chivito | IRCS+LGS-AO | 1 |
| S24B-UH015-A | Ellen Lee | Imaging disks around embedded protostars with SCExAO | CHARIS+SCExAO+NIRWFS | 3 |
| S24B-UH017-A2 | Samuel Walker | Spectroscopic follow-up of directly imaged substellar companions | IRD+NGS-AO | 2 |
| S24B-UH023-A | K.C. Chambers | WHIGS as part of the UNIONS survey | HSC | 2 |
| S24B-UH027-A | Roy Gal | Uncovering the mystery of missing galaxies in massive high-z protoclusters | MOIRCS | 3.5 |
| S24B-UH029-B | David Tholen | Extreme trans-Neptunian objects | HSC | 2 |
| S24B-UH030-A | Miles Lucas | Deep visible polarimetric imaging of planet-forming regions with VAMPIRES | VAMPIRES+CHARIS+FPDI+SCExAO | 3 |
| S24B-UH030-B1 | Miles Lucas | Search for an accreting protoplanet in the HD34700 inner cavity | CHARIS+VAMPIRES+SCExAO | 0.5 |
| S24B-UH036-A | Jan Kleyna | HSC search for near-Earth objects at small solar elongation | HSC | 2 |
| S24B-UH039-A1 | Esther Hu | Searching for high-z AGNs in the deepest hard X-ray image | HSC | 2 |
Time Exchange Programs with Gemini and Keck
| ID | PI | Proposal Title | Inst | Nts |
|---|---|---|---|---|
| S24B-TE004-G | Jorge Meléndez | Lithium and the future evolution of the Sun | HDS | 1 |
| S24B-TE009-GQ | HyeongHan Kim | Mapping the dark matter filament bridging a massive galaxy cluster pair A399-401 | HSC | 0.5 |
| S24B-TE027-G | Mike Hudson | Completing the g-band component of the UNION Survey | HSC | 1 |
| S24B-TE092-G | Kyle Franson | Imaging Giant Planets Around Young Accelerating Stars | CHARIS+SCExAO | 1 |
| S24B-TE900-G | Ruobing Dong | A Search for Accreting Planets around the Very Low Mass Star Obscured by an Edge-on Inner Disk | IRCS | 0.5 |
| S24B-TE084-K | Daniel Weisz | Resolved Stellar Metallicity Maps of Andromeda's Halo Using Wide-field Ca H&K Narrowband Imaging on HSC | HSC | 2 |
| S24B-TE244-K | Steph Sallum | Confirming V1247 Ori b: A candidate protoplanet at 50 milliarcseconds | CHARIS+SCExAO | 0.5 |
Service Programs conducted in Semester S24B
The following proposals were conducted in S24B as Service Programs.
| ID | PI | Proposal Title | Inst | Achievement |
|---|---|---|---|---|
| S24B-141S | Fua Sugimura | Neutron-capture elements in an open cluster II | HDS | 70% |
| S24B-143S | Hiroko Okada | Elemental abundances of bright extremely metal-poor stars | HDS | 50% |
| S24B-147S | Takahiro Kanai | A MOIRCS Spectroscopic Confirmation of PMOs in the Oph | MOIRCS | 88% |
| S24B-149S | Ruizhi Zhang | Unveiling the origin of the thin-disk-like very metal-poor stars in the Milky Way | HDS | 70% |
| S24B-150S | Mai Yamashita | Transfer mechanism of angular momentum of pre-main-sequence stars | HDS | 80% |
| S24B-156S | Ko Takatoshi | Approaching Type Iax Supernova 1181 explosion with Hα narrow band imaging | FOCAS | 100% |
updated on July 3, 2025