Jin-Long Xu

A Catalog of Compact High-Velocity Clouds from the FAST All-Sky HI Survey (FASHI) DR2

Jin-Long Xu, Chuan-Peng Zhang, xiaolan liu, Naiping Yu et autres

Abstract High-velocity clouds (HVCs) -- especially compact HVCs (CHVCs) -- are thought to serve as gaseous tracers of dark-matter-dominated subhalos, providing a crucial empirical link between the predicted dark matter substructure and observed satellite galaxies. In this paper, we present a new …

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Gas Accretion from a Neighbouring Galaxy Fuels the Low-luminosity AGN in NGC 4278

Jin-Long Xu, Nai-Ping Yu, Ming Zhu, Chuan-Peng Zhang et autres

How a seemingly `dead' host galaxy provides fuel for its active galactic nuclei (AGN) remains an unresolved problem. Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we present a new high-sensitivity atomic-hydrogen (HI) observation toward the nearby elliptical galaxy NGC 4278 and …

Study of few-electron backgrounds in the LUX-ZEPLIN detector

D. S. Akerib, A. K. Al Musalhi, F. Alder, J.O. Almquist et autres

The LUX-ZEPLIN (LZ) experiment aims to detect rare interactions between dark matter particles and xenon. Although the detector is designed to be the most sensitive to GeV/$c^2$--TeV/$c^2$ Weakly Interacting Massive Particles (WIMPs), it is also capable of measuring low-energy ionization signals down …

Microbubbles Enhanced Oil Displacement in Deep Pores

Zujie Gao, Jin-Long Xu, Derong Qiu, Tong Zhang et autres

The presence of deep pores allows the fluid to stop in them, and the presence of deep pores can lead to incomplete displacement of surface stains, which can lead to undesirable consequences in both petroleum engineering and skin cleaning. As a new …

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New Constraints on Cosmic Ray-Boosted Dark Matter from the LUX-ZEPLIN Experiment

D. S. Akerib, A. K. Al Musalhi, F. Alder, C. S. Amarasinghe et autres

While dual-phase xenon time projection chambers have driven the sensitivity toward weakly interacting massive particles at the GeV/c^{2} to TeV/c^{2} mass scale, the scope for sub-GeV/c^{2} dark matter particles is hindered by a limited nuclear recoil energy detection threshold. One approach to …

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A pulsar-helium star compact binary system formed by common envelope evolution

Z. L. Yang, J. L. Han, D. J. Zhou, W. C. Jing et autres

A stellar common envelope occurs in a binary system when the atmosphere of an evolving star expands to encompass an orbiting companion object. Such systems are predicted to evolve rapidly, ejecting the stellar envelope and leaving the companion in a tighter orbit …

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The FAST Ursa Major Supergroup H i Survey (FUMaS): Catalog and H i Mass Function

Ming Zhu, Chuan-Peng Zhang, Jin-Long Xu

Abstract Using the Five-hundred-meter Aperture Spherical radio Telescope, we have performed an Ursa Major supergroup H i survey covering the entire UMa region centered at R.A. = 11h59m28 . s 3, decl. = 49°05′18″ with a radius of 7 . ° 5. …

Report on Witteveen-Kolk syndrome caused by large fragment deletion in the 15q24.1 - q24.2 region in infants with early onset and literature review

Jin-Long Xu, Ling Ge, Qingxia Kong, Q. J. Li et autres

BACKGROUND: WITKOS is a rare neurodevelopmental disorder caused by heterozygous loss-of-function variants in the 15q24.1 - q24.2 region, includeing switch-insensitive 3 transcription regulator family member A (SIN3 A). Its incidence rate is extremely low. According to the current limited global data statistics, …

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Formation of the Dark Matter–Deficient S0 Galaxy NGC 4111 under the Tidal Interactions

Mei Ai, Ming Zhu, Nai-Ping Yu, Jin-Long Xu et autres

Abstract We present high-sensitivity and large-scale atomic hydrogen (H i) observations toward lenticular (S0) galaxy NGC 4111 using the Five-hundred-meter Aperture Spherical Radio Telescope. The column-density map shows that NGC 4111 and seven other different types of galaxies share a huge H …

A Novel Interactive Slime Mould Algorithm-Based Platform for Generative Art and Optimization

Wen Wen, Yuyao Zhang, Jin-Long Xu, Shan Wang et autres

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FASHI: An Untargeted Survey of the 21 cm H i Absorption Galaxies with FAST

Chuan-Peng Zhang, Ming Zhu, Cheng Cheng, Jin-Long Xu et autres

Abstract The FAST All Sky H I survey (FASHI) will cover the entire observable sky (∼22,000 square degrees) with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). With the currently released data, we perform an untargeted survey of 21 cm H i absorption …

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Dark Matter Search Results from 4.2 Tonne-Years of Exposure of the LUX-ZEPLIN (LZ) Experiment

J. Aalbers, D. S. Akerib, A. K. Al Musalhi, F. Alder et autres

We report results of a search for nuclear recoils induced by weakly interacting massive particle (WIMP) dark matter using the LUX-ZEPLIN (LZ) two-phase xenon time projection chamber. This analysis uses a total exposure of $4.2\pm0.1$ tonne-years from 280 live days of LZ …