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7941
Optimal PID tuning based on slope variation approach for position control of radio telescope
Published 2016“…Radio telescope is an astronomical instrument used to study radio astronomy activities including observing the celestial activities such as sun, galaxies, pulsars, stars, monitor the submillimeter wavelength and many more. …”
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7942
Follow-up Survey for the Binary Black Hole Merger GW200224_222234 Using Subaru/HSC and GTC/OSIRIS
Published 2023-01-01“…We also performed GTC/OSIRIS spectroscopy of the probable host galaxies for five candidates; two are likely to be located within the 3D skymap, whereas the others are not. …”
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7943
The Intrinsic Statistical Properties and Correlations of Short Gamma-Ray Bursts
Published 2023-01-01“…We report for the first time that there is a tighter correlation between the isotropic energy of the prompt emission of SGRBs and the star formation rate of their host galaxies, which reads $\mathrm{sSFR}\propto {E}_{\mathrm{iso}}^{0.38\pm 0.11}$ . …”
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7944
Volumetric Rates of Luminous Red Novae and Intermediate-luminosity Red Transients with the Zwicky Transient Facility
Published 2023-01-01“…The CLU experiment spectroscopically classifies ZTF transients associated with nearby (<150 Mpc) galaxies, achieving 80% completeness for m _r < 20 mag. …”
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7945
THE IDENTIFICATION OF z -DROPOUTS IN PAN-STARRS1: THREE QUASARS AT 6.5< z < 6.7
Published 2015“…Luminous distant quasars are unique probes of the high-redshift intergalactic medium (IGM) and of the growth of massive galaxies and black holes in the early universe. Absorption due to neutral hydrogen in the IGM makes quasars beyond a redshift of z ≃ 6.5 very faint in the optical z band, thus locating quasars at higher redshifts requires large surveys that are sensitive above 1 micron. …”
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7946
Some Interacting Dark Energy Models
Published 2018-11-01“…Using the differential age of old galaxies expressed in terms of <inline-formula> <math display="inline"> <semantics> <mrow> <mi>H</mi> <mo>(</mo> <mi>z</mi> <mo>)</mo> </mrow> </semantics> </math> </inline-formula> data, the peak position of baryonic acoustic oscillations (known as BAO data), the SN Ia data with strong gravitational lensing data, we obtain the best fit values of the model parameters for each case. …”
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7947
Deep Search for Gamma-Ray Emission from the Accreting X-Ray Pulsar 1A 0535+262
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7948
Fitting Type Ia Supernova Data to a Cosmological Model Based on Einstein–Newcomb–De Sitter Space
Published 2023-04-01“…De Sitter also found that in a space with constant positive curvature, spectral lines of remote galaxies would be red-shifted (called the de Sitter effect). …”
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7949
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7950
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7951
Confirmation of X-ray Absorption by Warm-hot Intergalactic Medium in the Sculptor Wall
Published 2011“…In a previous paper, we reported a 3σ detection of an absorption line from the warm-hot intergalactic medium (WHIM) using the Chandra and XMM X-ray grating spectra of the blazar H2356-309, the sight line of which intercepts the Sculptor Wall, a large-scale superstructure of galaxies at z ~ 0.03. To verify our initial detection, we obtained a deep (500 ks), follow-up exposure of H2356-309 as part of the Cycle-10 Chandra Large Project Program. …”
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7952
Intermittency Scaling for Mixing and Dissipation in Rotating Stratified Turbulence at the Edge of Instability
Published 2023-08-01“…These are reminiscent of (but not identical to) previous findings for other variables and systems such as oceanic and atmospheric flows, climate re-analysis data, fusion plasmas, the Solar Wind, or galaxies. For QG forcing, sharp scaling transitions take place once the Ozmidov length scale <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>ℓ</mi><mrow><mi>O</mi><mi>z</mi></mrow></msub></semantics></math></inline-formula> is resolved—<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>ℓ</mi><mrow><mi>O</mi><mi>z</mi></mrow></msub></semantics></math></inline-formula> being the scale after which a turbulent Kolmogorov energy spectrum likely recovers at high <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>R</mi><mi>e</mi></mrow></semantics></math></inline-formula>.…”
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7953
Determination of the Magnetic Field Strength and Geometry in the Accretion Disks of AGNs by Optical Spectropolarimetry
Published 2021-06-01“…Based on the spectropolarimetric data of 33 Seyfert type 1 galaxies observed with the BTA-6m telescope of the Special Astrophysical Observatory, we estimated the magnetic field values at the event horizon of the supermassive black hole <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>B</mi><mi mathvariant="normal">H</mi></msub></semantics></math></inline-formula> and the exponents of the power-law dependence <i>s</i> of the magnetic field on the radius. …”
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7954
PHILOSOPHY OF PERCEPTION OF THE WORLD IN THE INFORMATION AGE
Published 2018-03-01“…The presence of an edge or a limit, to which the galaxies have moved apart at a present point in time, would mean the restriction of the existence of space itself. …”
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7955
Social Interactivity in Live Video Experiences Reduces Loneliness
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7956
The R136 star cluster hosts several stars whose individual masses greatly exceed the accepted 150 M-circle dot stellar mass limit
Published 2010“…The potential for stars greatly exceeding 150 M-circle dot within metal-poor galaxies suggests that such pair-instability supernovae could occur within the local universe, as has been claimed for SN 2007bi.…”
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7957
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7958
Blanco DECam Bulge Survey (BDBS). VI. Extinction Maps Toward Southern Galactic Bulge Globular Clusters
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7959
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7960
Mapping the Galactic Metallicity Gradient with Open Clusters: The State-of-the-Art and Future Challenges
Published 2022-01-01“…Finally, we compare the shape of the galactic radial metallicity gradient to those of other spiral galaxies.…”
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