29 citations · 34 across the 13 of their papers we have counts for
18 papers
Diverse Protoclusters at Disclosed by Systematic Spectroscopy
Jun Toshikawa, Kentaro Koretomo, Nobunari Kashikawa +6
We present the results from follow-up spectroscopy of three protocluster candidates at , selected as overdense regions of -dropout galaxies in the wide-field imaging of…
Diverse Metallicities in Protoclusters at detected by Deep Learning
Yoshihiro Takeda, Nobunari Kashikawa, Kei Ito +12
We present spectroscopic follow-up observations with Subaru/MOIRCS of four protocluster candidate regions identified by the deep-learning model PCFNet. In three candidate regions,…
Probing Spatial Variations in IGM Transmission: Higher Ly Visibility in an H-Selected Galaxy Overdensity at
Shunta Shimizu, Nobunari Kashikawa, Junya Arita +13
The visibility of Ly emission during the epoch of reionization depends on both galaxy properties and the transmission of Ly photons through the intergalactic medium (IGM). Us…
PEGASUS (Pfs Emission-line GAlaxy SUrvey with Subaru): II. Metal Poor AGNs in High Equivalent-Width Narrow-Band Emitters
Hisakazu Uchiyama, Tohru Nagao, Mariko Kubo +19
We present Subaru 'Ōnohi'ula Prime Focus Spectrograph (PFS) optical--NIR spectroscopic follow-up of high-equivalent-width (EW) narrow-band (NB) emission-line galaxies selected from…
PEGASUS (Pfs Emission-line GAlaxy SUrvey with Subaru): I. Three-dimensional large-scale structures at probed with emission-line galaxies
Mariko Kubo, Tadayuki Kodama, Rhythm Shimakawa +16
To comprehensively understand the environmental effects on galaxy evolution, it is crucial to precisely map the distribution and thoroughly examine the properties of galaxies, incl…
ADF22-WEB: Massive galaxy formation shaped by cosmic web filaments in the z = 3.1 proto-cluster core
Hideki Umehata, Ian Smail, Charles C. Steidel +7
We present a census of dust, molecular gas, and galaxy structure in 18 dusty star-forming galaxies (DSFGs) at embedded in Ly-traced cosmic web filaments in the core of…
H I Absorbers as Beacons of Hidden Structure at : Multi-Component, Metal-Rich Absorption System near a Protocluster
Kentaro Koretomo, Nobunari Kashikawa, Toru Misawa +12
H I gas traces the large-scale structure and provides the primary fuel for star formation. High- protoclusters are ideal laboratories to study how H I gas is accreted and consum…
Subaru meets JWST: A Direct Measurement of Ly Escape Fraction at with Dual Narrow-Band Imaging
Shunta Shimizu, Nobunari Kashikawa, Ryo Emori +15
We present a direct measurement of the Ly escape fraction, , for H emitters (HAEs) at in the JWST CEERS field by combining JWST/NIRCam F47…
Spider-Webb: enhanced star formation in low-mass galaxies within the Spiderweb protocluster revealed by JWST Pa narrow-band imaging
Kazuki Daikuhara, Tadayuki Kodama, Yusei Koyama +10
Understanding the role of the environment in galaxy evolution is key to revealing the physical processes that regulate galaxy growth. We study the star formation activity of \pab\…
Association of cold gas, massive galaxies, and AGNs in a filamentary protocluster traced by triple narrow-band imaging
Kazuki Daikuhara, Tadayuki Kodama, Haruka Kusakabe +13
We investigate galaxy populations in the HS1700+64 protocluster at , characterized by two prominent linear filaments traced by spatially extended Ly blobs. We conducted…
Environmental Regulation of Dust and Star Formation Unveiled by Subaru Dual Narrow-band Imaging: Degree-scale Balmer Decrement Mapping across a z = 0.9 Supercluster
Zhaoran Liu, Tadayuki Kodama, Brian C. Lemaux +13
We present results from a dual narrow-band imaging survey targeting the CL1604 supercluster at z = 0.9 using the Subaru Telescope. By combining the NB921 filter on HSC and the NB12…
ALMA Deep Field in SSA22: Reconstructed [CII] Luminosity Function at z = 6
Natsuki H. Hayatsu, Rob J. Ivison, Paola Andreani +19
The ADF22 line survey reported detections of two high- line-emitting source candidates above 6-, both of which were shown to be spurious after follow-up observations. We inve…
ADF22+: a declining faint end in the far-infrared luminosity function in the SSA22 protocluster at z=3.09
Shuo Huang, Hideki Umehata, Ian Smail +6
Protoclusters represent the densest regions of cosmic large-scale structure in the early universe and are the environment where present-day massive elliptical galaxies are assemble…
ADF22-WEB: Detection of a molecular gas reservoir in a massive quiescent galaxy located in a proto-cluster core
Hideki Umehata, Mariko Kubo, Kouichiro Nakanishi
We present a study of the molecular gas reservoirs and dust contents in three quiescent galaxies (QGs) located in the core of the SSA22 proto-cluster. Using the Atacama La…
ADF22-WEB: ALMA and JWST (sub)kpc-scale views of dusty star-forming galaxies in a 3 proto-cluster
Hideki Umehata, Mariko Kubo, Ian Smail +4
We present a morphological analysis of ALMA and JWST NIRCam images of nine dusty star-forming galaxies (DSFGs) at zspec=3.09, all embedded within the cosmic web filaments at the SS…
Deciphering Gas Dynamics and Star Formation in a z=1.1 Main Sequence Spiral Galaxy with ALMA and JWST
Zhaoran Liu, Tadayuki Kodama, Takahiro Morishita +6
We present a joint analysis of high-resolution CO(2-1) and Paschen- emission lines to trace gas dynamics and spatially resolved star formation in ASPECS-LP.3mm.06, a mai…
ALMA Deep Field in SSA22: Blindly Detected CO Emitters and [CII] Emitter Candidates
N. H. Hayatsu, Y. Matsuda, H. Umehata +21
We report the identification of four millimeter line emitting galaxies with the Atacama Large Milli/submillimeter Array (ALMA) in SSA22 Field (ADF22). We analyze the ALMA 1.1 mm su…
Thirty Meter Telescope International Observatory Detailed Science Case 2024
Warren Skidmore, Bob Kirshner, David Andersen +168
The Thirty Meter Telescope (TMT) International Observatory (TIO) will be a revolutionary leap forward in astronomical observing capabilities, enabling us to address some of the mos…