Showing 41 - 60 results of 101 for search '"redshift"', query time: 0.04s Refine Results
  1. 41

    Stability of the thin shell from traversable Schwarzschild-like wormholes by Luis Liempi, Fabián Orellana, Mauricio Cataldo

    Published 2024-12-01
    “…The study is systematically divided to examine both positive and negative surface energy densities, and it delves into various gravitational redshift functions. Finally, it is concluded that the interaction of an external force on the thin shell significantly influences the behaviour of stable regions. …”
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  2. 42

    Photometric Selection of Type 1 Quasars in the XMM-LSS Field with Machine Learning and the Disk–Corona Connection by Jian Huang, Bin Luo, W. N. Brandt, Ying Chen, Qingling Ni, Yongquan Xue, Zijian Zhang

    Published 2025-01-01
    “…We used XGBoost to estimate photometric redshifts of our selected quasars. The estimated photometric redshifts span a range from 0.41 to 3.75. …”
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  3. 43

    Stability of a Noncanonical Scalar Field Model during Cosmological Date by Z. Ossoulian, T. Golanbari, H. Sheikhahmadi, Kh. Saaidi

    Published 2016-01-01
    “…The behavior of baryonic perturbations in linear perturbation scenario as a considerable amount of energy density of scalar field at low redshifts prevents the growth of perturbations in the ordinary matter fluid. …”
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  4. 44

    Gravitational wave luminosity distance for Starobinsky gravity in viscous cosmological models by Jia-nan Chi, Ya-Bo Wu, Yu Sang, Xue Zhang, Yi-liang Hu, Wen-zhong Liu, Bo-hai Chen

    Published 2025-01-01
    “…In addition, by comparing the GW and EM luminosity distances of SG model with $$d_{L(GR)}$$ d L ( G R ) of Einstein GR, we find that the GW and EM signals in SG1 and SG2 change from stronger to weaker than the ones in GR as redshift increases and more difficultly to be detected in the same distance and detection sensitivity. …”
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  5. 45

    Constraints on the Variation of the Fine-structure Constant at 3 < z < 10 with JWST Emission-line Galaxies by Linhua Jiang, Shuqi Fu, Feige Wang, Sarah E. I. Bosman, Zheng Cai, Hyunsung D. Jun, Zhiwei Pan, Fengwu Sun, Jinyi Yang, Huanian Zhang

    Published 2025-01-01
    “…We present constraints on the spacetime variation of the fine-structure constant α at redshifts 2.5 ≤ z  < 9.5 using JWST emission-line galaxies (ELGs). …”
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  6. 46

    Relativistic model of an anisotropic star with Bose-Einstein dark matter density profile in f(T) gravity by Samprity Das, Prabir Rudra, Surajit Chattopadhyay

    Published 2025-03-01
    “…We also determine the maximum mass, surface redshift, and compactness parameter at the surface. …”
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  7. 47

    Multilayered Electroactive Polyaniline-ZnO Modified GCE for Electrochemical Detection of Paracetamol by Samuel Chufamo, Bezabih Kelita, Sintayehu Berhanu, Almaz Kemal, Alemu Lelago

    Published 2022-01-01
    “…From UV-Vis measurements, the PANI/ZnO composite shows a redshift relative to PANI and ZnO. Moreover, FT-IR spectra show that chemical bonds and stretching are assigned to different peaks. …”
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  8. 48

    Species Identification and Effects of Aromatic Hydrocarbons on the Fluorescence Spectra of Different Oil Samples in Seawater by Yongchao Hou, Ying Li, Guannan Li, Mingfei Xu, Yunpeng Jia

    Published 2021-01-01
    “…Qualitative and quantitative difference analysis of the experimental and composite fluorescence spectra was performed based on the redshift of the main peak position, the fluorescence intensity distance, and the generalized included angle cosine, while correlation analysis was used to establish the relationship between the different fluorescence spectral parameters and the American Petroleum Institute gravity and viscosity of the oil species. …”
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  9. 49

    Microwave-Promoted Synthesis of Sulfonated Metallophthalocyanines and Aggregation in Different Solvents by Zhenhua Cheng, Na Cui, Shengjuan Jiang, Hongxiao Zhang, Lijun Zhu, Daohong Xia

    Published 2015-01-01
    “…Aggregation behavior of the five metallosulfophthalocyanines (MSPc) in different solvents was studied by UV-Vis spectroscopy separately in N,N-dimethyl formamide (DMF) and NaOH aqueous solution (5%wt). A redshift of maximum absorption wavelength and deviations from Lambert-Beer law with increasing the concentration were observed. …”
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  10. 50

    Design and development of second-generation titanium oxide photocatalysts to better our environment—approaches in realizing the use of visible light by Masakazu Anpo, Masato Takeuchi

    Published 2001-01-01
    “…Titanium oxide catalysts were implanted with various transition-metal ions by a high-voltage acceleration technique, then calcined in O2 at around 723–823 K to produce photocatalysts capable of absorbing visible light, the extent of such redshift depending on the kind and amount of metal ion implanted. …”
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  11. 51

    A New Era of Submillimeter GRB Afterglow Follow-Ups with the Greenland Telescope by Yuji Urata, Kuiyun Huang, Keiichi Asada, Hiroyuki Hirashita, Makoto Inoue, Paul T. P. Ho

    Published 2015-01-01
    “…Summarizing the current achievements of submm GRB follow-ups, we identify the following three scientific goals regarding GRBs: (1) systematic detection of bright submm emissions originating from reverse shock (RS) in the early afterglow phase, (2) characterization of forward shock and RS emissions by capturing their peak flux and frequencies and performing continuous monitoring, and (3) detections of GRBs at a high redshift as a result of the explosion of first generation stars through systematic rapid follow-ups. …”
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  12. 52

    Plasmonic-Resonant Bowtie Antenna for Carbon Nanotube Photodetectors by Hongzhi Chen, Ning Xi, King Wai Chiu Lai, Liangliang Chen, Carmen Kar Man Fung, Jianyong Lou

    Published 2012-01-01
    “…It is shown that the electric field intensity enhancement increased exponentially with distance reduction between the CNT photodetector to the antenna. A redshift of the peak resonance wavelength is predicted due to the increase of tip angles of the bowtie antennas. …”
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  13. 53

    Shadows and accretion disk images of charged rotating black hole in modified gravity theory by He-Bin Zheng, Meng-Qi Wu, Guo-Ping Li, Qing-Quan Jiang

    Published 2025-01-01
    “…The increase of $$\alpha $$ α exhibits an increasing effect on redshift. At the same parameter level, $$\alpha $$ α has a more obvious effect on inner shadow and image of BH by comparing with that of Q. …”
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  14. 54

    Discovering Large-scale Structure at 2 < z < 5 in the C3VO Survey by Denise Hung, Brian C. Lemaux, Olga Cucciati, Ben Forrest, Ekta A. Shah, Roy R. Gal, Finn Giddings, Derek Sikorski, Emmet Golden-Marx, Lori M. Lubin, Nimish Hathi, Giovanni Zamorani, Lu Shen, Sandro Bardelli, Letizia P. Cassarà, Gabriella De Lucia, Fabio Fontanot, Bianca Garilli, Lucia Guaita, Michaela Monika Hirschmann, Kyoung-Soo Lee, Andrew B. Newman, Vandana Ramakrishnan, Daniela Vergani, Lizhi Xie, Elena Zucca

    Published 2025-01-01
    “…We also apply the same technique to mock observations of simulated galaxies with properties derived from the GAlaxy Evolution and Assembly semianalytic model in order to judge the effectiveness of our search algorithm as a function of redshift, total mass, and fraction of spectroscopic redshifts. …”
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  15. 55

    The Sunburst Arc with JWST. III. An Abundance of Direct Chemical Abundances by Brian Welch, T. Emil Rivera-Thorsen, Jane R. Rigby, Taylor A. Hutchison, Grace M. Olivier, Danielle A. Berg, Keren Sharon, Håkon Dahle, M. Riley Owens, Matthew B. Bayliss, Gourav Khullar, John Chisholm, Matthew Hayes, Keunho J. Kim

    Published 2025-01-01
    “…Abundances of sulfur, argon, neon, and iron are consistent with local low-metallicity H ii regions and low-redshift galaxies. This study represents the most complete chemical abundance analysis of an individual H ii region at Cosmic Noon to date, which enables direct comparisons between local H ii regions and those in the distant Universe.…”
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  16. 56

    Electronic Structure and Optical Properties of GaAs Doped with Rare-Earth Elements (Sc, Y, La, Ce, and Pr) by Yongrong Deng, Chunhong Zhang, Xinmao Qin, Wanjun Yan

    Published 2025-01-01
    “…In addition, a slight redshift occurred in the absorption spectrum. The absorption peak also diminished owing to rare-earth-element doping. …”
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  17. 57

    Pressure-controlled luminescence in fast-response barium fluoride crystals by Marilou Cadatal-Raduban, Luong Viet Mui, Masahiro Yamashita, Yuki Shibazaki, Toshihiko Shimizu, Nobuhiko Sarukura, Kohei Yamanoi

    Published 2024-10-01
    “…Herein, we report a redshift in the CL emission wavelength with high-pressure application. …”
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  18. 58

    Synthesis and Characterization of Iron Doped Titanium Dioxide (Fe: TiO2) Nanoprecipitate at Different pH Values for Applications of Self-Cleaning Materials by Tizazu Abza, Abel Saka, Jule Leta Tesfaye, Lamessa Gudata, N. Nagaprasad, Ramaswamy Krishnaraj

    Published 2022-01-01
    “…Extremely translucent nanopowders are witnessed in the observable region by visible and redshifts near advanced wavelengths with rising pH values because of an increase in the size of particles from XRD data and SEM micrographs. …”
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  19. 59

    Theoretical Analysis of the Optical Response of Silicon/Silica/Gold Multishell Nanoparticles in Biological Tissue by Wajdi Chaabani, Abdallah Chehaidar, Julien Proust, Jérôme Plain

    Published 2019-01-01
    “…The offset of the gold shell with respect to the silicon/silica core results in a redshift of the absorption and scattering resonances supported by the concentric silicon/silica/gold multishell within the biological window, accompanied by a decrease in their amplitudes. …”
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  20. 60

    Density functional theory study of Chlorine, Fluorine, Nitrogen, and Sulfur doped rutile TiO2 for photocatalytic application by Fikadu Takele Geldasa, Francis Birhanu Dejene, Mesfin Abayneh Kebede, Fekadu Gashaw Hone, Edosa Tasisa Jira

    Published 2025-01-01
    “…The bandgap of all doped materials, with the exception of F-doped TiO2, displayed a redshift. The absorption edges in C, N, and S-doped TiO2 are displaced toward the visible area, as indicated by the imaginary component of the dielectric function peaks. …”
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