Search Results - "Totani, T"
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Lethal radiation from nearby supernovae helps explain the small cosmological constant
Published in Astronomische Nachrichten (01-01-2019)“…The observed value Λobs of the cosmological constant Λ is extremely smaller than theoretical expectations, and the anthropic argument has been proposed as a…”
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The host galaxy of a fast radio burst
Published in Nature (London) (25-02-2016)“…Observations of a six-day-long radio transient following a fast radio burst have yielded the host galaxy’s redshift, which, combined with the dispersion…”
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Supernovae in the Subaru Deep Field: the rate and delay-time distribution of Type Ia supernovae out to redshift 2
Published in Monthly notices of the Royal Astronomical Society (01-10-2011)“…The Type Ia supernova (SN Ia) rate, when compared to the cosmic star formation history (SFH), can be used to derive the delay-time distribution (DTD; the…”
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GLOBAL STRUCTURE OF ISOTHERMAL DIFFUSE X-RAY EMISSION ALONG THE FERMI BUBBLES
Published in The Astrophysical journal (01-07-2015)“…ABSTRACT In our previous works, we found absorbed thermal X-ray plasma with kT 0.3 keV observed ubiquitously near the edges of the Fermi bubbles and…”
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SUZAKU OBSERVATIONS OF THE DIFFUSE X-RAY EMISSION ACROSS THE FERMI BUBBLES' EDGES
Published in The Astrophysical journal (10-12-2013)“…We present Suzaku X-ray observations along two edge regions of the Fermi Bubbles, with eight [Asymptotically = to] 20 ks pointings across the northern part of…”
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Nonthermal afterglow of the binary neutron star merger GW170817: A more natural modeling of electron energy distribution leads to a qualitatively different new solution
Published in Astronomische Nachrichten (01-01-2019)“…Observed properties of the nonthermal afterglow emission of GW170817 from radio to X‐ray are consistent with synchrotron radiation by electrons accelerated in…”
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Galactic Centre hypershell model for the North Polar Spurs
Published in Monthly notices of the Royal Astronomical Society (11-06-2016)“…The bipolar-hypershell (BHS) model for the North Polar Spurs (NPS-E, -W, and Loop I) and counter southern spurs (SPS-E and -W) is revisited based on numerical…”
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SUZAKU X-RAY OBSERVATIONS OF THE FERMI BUBBLES: NORTHERNMOST CAP AND SOUTHEAST CLAW DISCOVERED WITH MAXI-SSC
Published in The Astrophysical journal (01-04-2015)“…ABSTRACT We report on Suzaku observations of large-scale X-ray structures possibly related to the Fermi Bubbles obtained in 2013 with a total duration of 80…”
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The afterglow of GRB 050709 and the nature of the short-hard γ-ray bursts
Published in Nature (06-10-2005)“…The final chapter in the long-standing mystery of the gamma-ray bursts (GRBs) centres on the origin of the short-hard class of bursts, which are suspected on…”
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An optical spectrum of the afterglow of a γ-ray burst at a redshift of z = 6.295
Published in Nature (09-03-2006)“…The prompt γ-ray emission from γ-ray bursts (GRBs) should be detectable out to distances of z > 10 (ref. 1), and should therefore provide an excellent probe of…”
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Detectability of the supernova relic neutrinos and neutrino oscillation
Published in Astroparticle physics (2003)“…We investigate the flux and the event rate of the supernova relic neutrino (SRN) background at the SuperKamiokande (SK) detector for various neutrino…”
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12
Future Detection of Supernova Neutrino Burst and Explosion Mechanism
Published in The Astrophysical journal (20-03-1998)Get full text
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13
Supernovae in the Subaru Deep Field: an initial sample and Type Ia rate out to redshift 1.6
Published in Monthly notices of the Royal Astronomical Society (11-12-2007)“…Large samples of high-redshift supernovae (SNe) are potentially powerful probes of cosmic star formation, metal enrichment and SN physics. We present initial…”
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TOWARD IDENTIFYING THE UNASSOCIATED GAMMA-RAY SOURCE 1FGL J1311.7-3429 WITH X-RAY AND OPTICAL OBSERVATIONS
Published in The Astrophysical journal (01-10-2012)“…We present deep optical and X-ray follow-up observations of the bright unassociated Fermi-LAT gamma-ray source 1FGL J1311.7-3429. The source was already known…”
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15
Galaxy luminosity function and its cosmological evolution: testing a new feedback model depending on galaxy-scale dust opacity
Published in Monthly notices of the Royal Astronomical Society (11-06-2014)“…We present a new version of a semi-analytic model of cosmological galaxy formation, incorporating a star formation law with a feedback depending on the…”
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FMOS near-IR spectroscopy of Herschel-selected galaxies: star formation rates, metallicity and dust attenuation at z ∼ 1
Published in Monthly notices of the Royal Astronomical Society (01-11-2012)“…Abstract We investigate the properties (e.g. star formation rate, dust attenuation, stellar mass and metallicity) of a sample of infrared (IR) luminous…”
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SUZAKU X-RAY FOLLOW-UP OBSERVATIONS OF SEVEN UNASSOCIATED FERMI-LAT GAMMA-RAY SOURCES AT HIGH GALACTIC LATITUDES
Published in The Astrophysical journal (01-03-2012)“…We report on our second-year campaign of X-ray follow-up observations of unidentified Fermi Large Area Telescope (LAT) gamma -ray sources at high Galactic…”
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On the Spectrum and Spectropolarimetry of Type Ic Hypernova SN 2003dh/GRB 030329
Published in The Astrophysical journal (10-08-2003)Get full text
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“DARK” GRB 080325 IN A DUSTY MASSIVE GALAXY AT z ∼ 2
Published in The Astrophysical journal (10-08-2010)“…We present optical and near-infrared observations of Swift GRB 080325 classified as a 'dark gamma-ray burst (GRB)'. Near-infrared observations with…”
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Unraveling the Nature of Unidentified High Galactic Latitude Fermi/LAT Gamma-Ray Sources With Suzaku
Published in The Astrophysical journal (10-03-2011)“…Here we report on the results of deep X-ray follow-up observations of four unidentified Delta *g-ray sources detected by the Fermi/LAT instrument at high…”
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