Hanae Inami
A5046181082- Galaxies: Formation, Evolution, Phenomena
- Astronomy and Astrophysical Research
- Astrophysics and Star Formation Studies
- Stellar, planetary, and galactic studies
- Gamma-ray bursts and supernovae
- Astronomical Observations and Instrumentation
- Astrophysical Phenomena and Observations
- Astrophysics and Cosmic Phenomena
- Adaptive optics and wavefront sensing
- Radio Astronomy Observations and Technology
- CCD and CMOS Imaging Sensors
- Calibration and Measurement Techniques
- Spectroscopy and Laser Applications
- Cosmology and Gravitation Theories
- Scientific Research and Discoveries
- Remote Sensing in Agriculture
- Scientific Measurement and Uncertainty Evaluation
- Superconducting and THz Device Technology
- Impact of Light on Environment and Health
- Infrared Target Detection Methodologies
- Pharmacological Effects and Assays
- Advanced Thermodynamic Systems and Engines
- History and Developments in Astronomy
- Particle Detector Development and Performance
- Advanced Vision and Imaging
Hiroshima University
2019-2025
Hiroshima University of Economics
2023
Astrobiology Center
2021
The University of Tokyo
2021
Centre de Recherche Astrophysique de Lyon
2016-2021
Nagoya University
2021
Université Claude Bernard Lyon 1
2016-2020
École Normale Supérieure de Lyon
2016-2020
Centre National de la Recherche Scientifique
2016-2020
Kitt Peak National Observatory
2012-2019
We present an analysis of the deepest Herschel images in four major extragalactic fields GOODS-North, GOODS-South, UDS and COSMOS obtained within GOODS-Herschel CANDELS-Herschel key programs. The picture provided by 10497 individual far-infrared detections is supplemented stacking a mass-complete sample 62361 star-forming galaxies from CANDELS-HST H band-selected catalogs two deep ground-based Ks GOODS-North COSMOS-wide fields, order to obtain one most accurate unbiased understanding date...
The Great Observatories All-Sky LIRG Survey (GOALS20 ) combines data from NASA's Spitzer Space Telescope,Chandra X-Ray Observatory,Hubble Telescope (HST), and Galaxy Evolution Explorer (GALEX) observatories, together with ground-based data, into a comprehensive imaging spectroscopic survey of over 200 low-redshift (z < 0.088), Luminous Infrared Galaxies (LIRGs). LIRGs are complete subset the IRAS Revised Bright Sample (RBGS), which comprises 629 extragalactic objects 60 μm flux densities...
ABSTRACT We explore star formation histories (SFHs) of galaxies based on the evolution rate stellar mass relation (SFR– M * ). Using data from FourStar Galaxy Evolution Survey (ZFOURGE) in combination with far-IR imaging Spitzer and Herschel observatories we measure SFR– at 0.5 < z 4. Similar to recent works find that average infrared spectral energy distributions are roughly consistent a single template across broad range redshifts masses, evidence for only weak deviations. is not power...
We present the MUSE Hubble Ultra Deep Survey, a mosaic of nine fields covering 90\% entire HUDF region with 10-hour deep exposure time, plus deeper 31-hour in single 1.15 arcmin2 field. The improved observing strategy and advanced data reduction results datacubes sub-arcsecond spatial resolution (0.65 arcsec at 7000 A) accurate astrometry (0.07 rms). compare broadband photometric properties to HST photometry, finding good agreement zeropoint up mAB=28 but an increasing scatter for faint...
We present the first results of a survey [CII]158um emission line in 241 luminous infrared galaxies (LIRGs) comprising Great Observatories All-sky Survey (GOALS) sample, obtained with PACS instrument on board Herschel. The [CII] luminosities LIRGs GOALS range from ~10^7 to 2x10^9 Lsun. find that show tight correlation [CII]/FIR far-IR flux density ratios, strong negative trend spanning ~10^-2 10^-4, as average temperature dust increases. correlations between ratio and strength 9.7um silicate...
Abstract We present an analysis of <?CDATA ${[{\rm{O}}{\rm{I}}]}_{63}$?> , [O iii ] 88 [N ii 122 and ${[{\rm{C}}{\rm{II}}]}_{158}$?> far-infrared (FIR) fine-structure line observations obtained with Herschel /PACS, for ∼240 local luminous infrared galaxies (LIRGs) in the Great Observatories All-sky LIRG Survey. find pronounced declines (“deficits”) line-to-FIR continuum emission as a function FIR color luminosity surface density, ${{\rm{\Sigma }}}_{\mathrm{IR}}$?> . The median electron...
We report the detection of extended Lyman-alpha (Lya) haloes around 145 individual star-forming galaxies at redshifts 3 M_{UV}> -22) Lya emitters (LAEs). Using a 2D, two-component decomposition emission assuming circular exponential distributions, we measure scale lengths and luminosities haloes. find that 80% our objects having reliable halo measurements show is significantly more than UV continuum detected by HST (by factor ~4 to >20). The median length in sample ~4.5 kpc. By...
We present a 69 arcmin$^2$ ALMA survey at 1.1mm, GOODS-ALMA, matching the deepest HST-WFC3 H-band part of GOODS-South field. taper 0"24 original image with homogeneous and circular synthesized beam 0"60 to reduce number independent beams - thus reducing purely statistical spurious detections optimize sensitivity point sources. extract catalogue galaxies selected by identify sources without HST counterparts down 5$\sigma$ limiting depth H=28.2 AB (HST/WFC3 F160W). detects 20 brighter than 0.7...
By compiling a comprehensive census of literature studies, we investigate the evolution Main Sequence (MS) star-forming galaxies (SFGs) in widest range redshift ($0 < z 6$) and stellar mass ($10^{8.5}-10^{11.5}$ $M_{\odot}$) ever probed. We convert all observations to common calibration find remarkable consensus on variation MS shape normalization across cosmic time. The relation exhibits curvature towards high masses at redshifts. best functional form is governed by two parameters:...
Abstract The Reionization Era Bright Emission Line Survey (REBELS) is a cycle-7 ALMA Large Program (LP) that identifying and performing first characterization of many the most luminous star-forming galaxies known in z > 6.5 universe. REBELS providing this probe by systematically scanning 40 brightest UV-selected identified over 7 deg 2 area for bright [C ii ] 158 μ m [O iii 88 lines dust-continuum emission. Selection targets was done combining our own other photometric selections, each...
ALMA observations have revealed the presence of dust in first generations galaxies Universe. However, temperature $T_d$ remains mostly unconstrained due to few available FIR continuum data at redshift $z>5$. This introduces large uncertainties several properties high-$z$ galaxies, namely their masses, infrared luminosities, and obscured fraction star formation. Using a new method based on simultaneous [CII] 158$\mu$m line underlying measurements, we derive $T_ d$ detected $z\approx 7$ Large...
ABSTRACT We include a fully coupled treatment of metal and dust enrichment into the Delphi semi-analytic model galaxy formation to explain content 13 Lyman break galaxies (LBGs) detected by Atacama Large millimetre Array (ALMA) REBELS Program at z ≃ 7. find that mass, Md, is regulated combination Type II supernova production, astration, shock destruction, ejection in outflows; grain growth (with standard time-scale τ0 = 30 Myr) plays negligible role. The predicts dust-to-stellar mass ratio...
We report 18 dust continuum detections ($\geq 3.3\sigma$) at $\sim88{\rm \mu m}$ and $158{\rm out of 49 ultraviolet(UV)-bright galaxies ($M_{\rm UV} < -21.3$ mag) $z>6.5$, observed by the Cycle-7 ALMA Large Program, REBELS its pilot programs. This has more than tripled number known $z>6.5$. Out these detections, 12 are reported for first time as part REBELS. In addition, 15 detected also show a [CII]$_{\rm 158{\rm m}}$ emission line, providing us with accurate redshifts. anticipate line from...
ABSTRACT We present specific star formation rates (sSFRs) for 40 ultraviolet (UV)-bright galaxies at z ∼ 7–8 observed as part of the Reionization Era Bright Emission Line Survey (REBELS) Atacama Large Millimeter/submillimeter Array (ALMA) large programme. The sSFRs are derived using improved rate (SFR) calibrations and spectral energy distribution (SED)-based stellar masses, made possible by measurements far-infrared (FIR) continuum emission [C ii]-based spectroscopic redshifts. median sSFR...
We present a statistical analysis of the mid-infrared (MIR) spectra 248 luminous infrared (IR) galaxies (LIRGs) which comprise Great Observatories All-sky LIRG Survey (GOALS) observed with Infrared Spectrograph (IRS) on-board Spitzer Space Telescope. The GOALS sample enables direct measurement relative contributions star-formation and active galactic nuclei (AGN) to total IR emission from large local LIRGs. AGN contribution MIR (f-AGN) is estimated by employing several diagnostics based on...
We have conducted a two-layered spectroscopic survey (1'x1' ultra deep and 3'x3' regions) in the Hubble Ultra Deep Field (HUDF) with Multi Unit Spectroscopic Explorer (MUSE). The combination of large field view, high sensitivity, wide wavelength coverage provides an order magnitude improvement spectroscopically confirmed redshifts HUDF; i.e., 1206 secure for HST continuum selected objects, which corresponds to 15% total (7904). redshift distribution extends well beyond z>3 HST/F775W...
ABSTRACT We present an analysis of a deep (1 σ = 13 μ Jy) cosmological 1.2 mm continuum map based on ASPECS, the ALMA Spectroscopic Survey in Hubble Ultra Deep Field. In 1 arcmin 2 covered by ASPECS we detect nine sources at <?CDATA $\gt 3.5\sigma $?> significance mm. Our ALMA-selected sample has median redshift $z=1.6\pm 0.4$?> , with only one galaxy detected z > within survey area. This value is significantly lower than that found millimeter samples selected higher flux density cutoff...
We present an analysis of MUSE observations obtained on the massive Frontier Fields cluster Abell 2744. This new dataset covers entire multiply-imaged region around core. measure spectroscopic redshifts for HST-selected continuum sources together with line emitters blindly detected in datacube. The combined catalog consists 514 (with 414 identifications), including 156 members and 326 magnified background sources. use this redshift information to perform a strong-lensing all multiple images...
We have undertaken an ambitious program to visually classify all galaxies in the five CANDELS fields down H<24.5 involving dedicated efforts of 65 individual classifiers. Once completed, we expect detailed morphological classifications for over 50,000 up z<4 fields. Here, present our visual classification scheme, which was designed cover a wide range science goals. This scheme includes basic Hubble sequence types, but also look at mergers and interactions, clumpiness galaxies,...
The Great Observatories All-sky LIRG Survey (GOALS) consists of a complete sample 202 luminous infrared galaxies (LIRGs) selected from the IRAS Revised Bright Galaxy Sample (RBGS). span full range interaction stages, isolated to interacting pairs late stage mergers. We present comparison UV and properties 135 in GOALS observed by GALEX Spitzer. For with separations greater than resolution Spitzer (∼2''–6''), we assess IR each galaxy individually. contribution FUV measured star formation rate...
We present the rationale for and observational description of ASPECS: The ALMA SPECtroscopic Survey in Hubble Ultra-Deep Field (UDF), cosmological deep field that has deepest multi-wavelength data available. Our overarching goal is to obtain an unbiased census molecular gas dust continuum emission high-redshift (z$>$0.5) galaxies. $\sim$1$'$ region covered within UDF was chosen overlap with available imaging from HST. observations consist full frequency scans band 3 (84-115 GHz) 6...
We report the likely identification of a substantial population massive M~10^11M_Sun galaxies at z~4 with suppressed star formation rates (SFRs), selected on rest-frame optical to near-IR colors from FourStar Galaxy Evolution Survey. The observed spectral energy distributions show pronounced breaks, sampled by set medium-bandwidth filters, resulting in tightly constrained photometric redshifts. Fitting stellar models suggests large Balmer/4000AA relatively old populations, masses and low...
We make use of sensitive (9.3 microJy/beam RMS) 1.2mm-continuum observations from the ASPECS ALMA large program Hubble Ultra Deep Field (HUDF) to probe dust-enshrouded star formation 1362 Lyman-break galaxies spanning redshift range z=1.5-10 (to ~7-28 Msolar/yr at 4 sigma over entire range). find that fraction ALMA-detected in our samples increases steeply with stellar mass, detection rising 0% 10^9 Msolar 85(-18)(+9)% >10^{10} Msolar. Moreover, stacking all 1253 low-mass (<10^{9.25} Msolar)...