Search Results - "Gu, Liyi"
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Uncertainties in Atomic Data for Modeling Astrophysical Charge Exchange Plasmas
Published in Sensors (Basel, Switzerland) (19-01-2022)“…Relevant uncertainties of theoretical atomic data are vital to determining the accuracy of plasma diagnostics in a number of areas, including, in particular,…”
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LABORATORY MEASUREMENTS COMPELLINGLY SUPPORT A CHARGE-EXCHANGE MECHANISM FOR THE "DARK MATTER" ∼3.5 keV X-Ray LINE
Published in The Astrophysical journal (10-12-2016)“…ABSTRACT The reported observations of an unidentified X-ray line feature at ∼3.5 keV have driven a lively discussion about its possible dark matter origin…”
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Evidence for Resonance Scattering in the X-Ray Grating Spectrum of the Supernova Remnant N49
Published in The Astrophysical journal (01-07-2020)“…Resonance scattering (RS) is an important process in astronomical objects, because it affects measurements of elemental abundances and distorts surface…”
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First High-resolution Spectroscopy of X-Ray Absorption Lines in the Obscured State of NGC 5548
Published in The Astrophysical journal (01-02-2024)“…Abstract Multiwavelength spectroscopy of NGC 5548 revealed remarkable changes due to the presence of an obscuring wind from the accretion disk. This broadened…”
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Supply Chain Inventory Management from the Perspective of “Cloud Supply Chain”—A Data Driven Approach
Published in Mathematics (Basel) (01-02-2024)“…This study systematically investigates the pivotal role of inventory management within the framework of “cloud supply chain” operations, emphasizing the…”
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Diffuse radio source candidate in CIZA J1358.9−4750
Published in Publications of the Astronomical Society of Japan (27-02-2023)“…Abstract We report on results of our upgraded Giant Metrewave Radio Telescope (uGMRT) observations for an early-stage merging galaxy cluster, CIZA J1358.9−4750…”
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XMM-Newton view of the shock heating in an early merging cluster, CIZA J1358.9−4750
Published in Publications of the Astronomical Society of Japan (06-02-2023)“…Abstract CIZA J1358.9−4750 is a nearby galaxy cluster in the early phase of a major merger. The two-dimensional temperature map using XMM-Newton EPIC-PN…”
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Discovery of a strong 6.6 keV emission feature from EXO 1745−248 after the superburst in 2011 October
Published in Publications of the Astronomical Society of Japan (01-10-2021)“…Abstract We discover an unidentified strong emission feature in the X-ray spectrum of EXO 1745−248 obtained by RXTE at 40 hr after the peak of a superburst…”
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How do atomic code uncertainties affect abundance measurements in the intracluster medium?
Published in Astronomische Nachrichten (01-02-2020)“…Accurate chemical abundance measurements of X‐ray‐emitting atmospheres pervading massive galaxies, galaxy groups, and clusters provide essential information on…”
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ATCA 16 cm observation of CIZA J1358.9−4750: Implication of merger stage and constraint on non-thermal properties
Published in Publications of the Astronomical Society of Japan (01-06-2018)“…Abstract We report the Australia Telescope Compact Array 16 cm observation of CIZA J1358.9−4750. Recent X-ray studies imply that this galaxy cluster is…”
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Discovery of a nearby early-phase major cluster merger CIZA J1358.9−4750
Published in Publications of the Astronomical Society of Japan (01-08-2015)“…CIZA J1358.9−4750 is a nearby (z = 0.074) pair of clusters of galaxies located close to the Galactic plane. It consists of two X-ray extended humps at the…”
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TWO-PHASE ICM IN THE CENTRAL REGION OF THE RICH CLUSTER OF GALAXIES A1795: A JOINT CHANDRA, XMM-NEWTON, AND SUZAKU VIEW
Published in The Astrophysical journal (20-04-2012)“…Based on a detailed analysis of the high-quality Chandra, XMM-Newton, and Suzaku data of the X-ray bright cluster of galaxies A1795, we report clear evidence…”
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Suzaku observation of a high-entropy cluster Abell 548W
Published in Publications of the Astronomical Society of Japan (01-06-2016)“…Abell 548W, one of the galaxy clusters located in the Abell 548 region, has about an order of magnitude lower X-ray luminosity compared to ordinal clusters in…”
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Observations of a pre-merger shock in colliding clusters of galaxies
Published in Nature astronomy (01-09-2019)“…Clusters of galaxies are the largest known gravitationally bound structures in the Universe. When clusters collide, they create merger shocks on cosmological…”
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A Chandra Study of Temperature Substructures in Intermediate-Redshift Galaxy Clusters
Published in The Astrophysical journal (01-08-2009)Get full text
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A joint Chandra and XMM–Newton view of Abell 3158: a massive off-centre cool gas clump as a robust diagnostic of a merger stage
Published in Monthly notices of the Royal Astronomical Society (21-04-2010)“…In previous works, the nearby galaxy cluster Abell 3158 was reported to possess a relatively regular, relaxed morphology in the X-ray band. By analysing the…”
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Is the low-energy tail of shock-accelerated protons responsible for over-ionized plasma in supernova remnants?
Published in Publications of the Astronomical Society of Japan (24-09-2024)“…Abstract Over-ionized, recombining plasma is an emerging class of X-ray bright supernova remnants (SNRs). This unique thermal state, where the ionization…”
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A High-Abundance Arc in the Compact Group of Galaxies HCG 62: An AGN- or Merger-Induced Metal Outflow?
Published in The Astrophysical journal (10-04-2007)“…We present a Chandra study of the metal distribution in the X-ray bright compact group of galaxies HCG 62. We find that the diffuse X-ray emission is peaked at…”
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MULTI-WAVELENGTH STUDIES OF SPECTACULAR RAM-PRESSURE STRIPPING OF A GALAXY. II. STAR FORMATION IN THE TAIL
Published in The Astrophysical journal (07-11-2013)Get full text
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The facts on the ground: Evaluating humanitarian fleet management policies using simulation
Published in European journal of operational research (01-09-2021)“…•Simulation-based counterfactual analysis of humanitarian fleet management policies.•Maximally realistic policy evaluation, calibrated using real…”
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