Velocity Acoustic Oscillations on Cosmic Dawn 21 cm Power Spectrum as a Probe of Small-scale Density Fluctuations by Xin Zhang, Hengjie Lin, Meng Zhang, Bin Yue, Yan Gong, Yidong Xu, Xuelei Chen

“…Therefore, the VAO signal can be an effective indicator for small-scale density fluctuations and a useful probe of the nature of dark matter. The Square Kilometre Array-low with ∼2000 hr observation time has the ability to detect the VAO signal and constrain dark matter models.…”
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Constraints on the Helium Abundance from Fast Radio Bursts by Liang Jing, Jun-Qing Xia

“…Hopefully, large FRB samples with high redshift from the Square Kilometre Array can provide high-precision measurements of the helium abundance in the near future.…”
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A Nonrepeating Fast Radio Burst in a Dwarf Host Galaxy by Shivani Bhandari, Alexa C. Gordon, Danica R. Scott, Lachlan Marnoch, Navin Sridhar, Pravir Kumar, Clancy W. James, Hao Qiu, Keith W. Bannister, Adam T. Deller, Tarraneh Eftekhari, Wen-fai Fong, Marcin Glowacki, J. Xavier Prochaska, Stuart D. Ryder, Ryan M. Shannon, Sunil Simha

“…We present the discovery of an as yet nonrepeating fast radio burst (FRB), FRB 20210117A, with the Australian Square Kilometre Array Pathfinder (ASKAP), as a part of the Commensal Real-time ASKAP Fast Transients Survey. …”
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SCUBA-2 High Redshift Bright Quasar Survey. II. The Environment of z ∼ 6 Quasars at Submillimeter Band by Qiong Li, Ran Wang, Xiaohui Fan, Xue-Bing Wu, Linhua Jiang, Eduardo Bañados, Bram Venemans, Yali Shao, Jianan Li, Jeff Wagg, Roberto Decarli, Chiara Mazzucchelli, Alain Omont, Frank Bertoldi, Sean Johnson, Christopher J. Conselice, Chengpeng Zhang

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A Galactic Eclipse: The Small Magellanic Cloud Is Forming Stars in Two Superimposed Systems by Claire E. Murray, Sten Hasselquist, Joshua E. G. Peek, Christina Willecke Lindberg, Andres Almeida, Yumi Choi, Jessica E. M. Craig, Helga Dénes, John M. Dickey, Enrico M. Di Teodoro, Christoph Federrath, Isabella. A. Gerrard, Steven J. Gibson, Denis Leahy, Min-Young Lee, Callum Lynn, Yik Ki Ma, Antoine Marchal, N. M. McClure-Griffiths, David Nidever, Hiep Nguyen, Nickolas M. Pingel, Elizabeth Tarantino, Lucero Uscanga, Jacco Th. van Loon

“…In this work, we present a new model for the SMC by comparing the kinematics of young, massive stars with the structure of the ISM traced by high-resolution observations of neutral atomic hydrogen (H i ) from the Galactic Australian Square Kilometre Array Pathfinder survey. Specifically, we identify thousands of young, massive stars with precise radial velocity constraints from the Gaia and APOGEE surveys and match these stars to the ISM structures in which they likely formed. …”
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FAST-ASKAP Synergy: Quantifying Coexistent Tidal and Ram Pressure Strippings in the NGC 4636 Group by Xuchen Lin, Jing Wang, Virginia Kilborn, Eric W. Peng, Luca Cortese, Alessandro Boselli, Ze-Zhong Liang, Bumhyun Lee, Dong Yang, Barbara Catinella, N. Deg, H. Dénes, Ahmed Elagali, P. Kamphuis, B. S. Koribalski, K. Lee-Waddell, Jonghwan Rhee, Li Shao, Kristine Spekkens, Lister Staveley-Smith, T. Westmeier, O. Ivy Wong, Kenji Bekki, Albert Bosma, Min Du, Luis C. Ho, Juan P. Madrid, Lourdes Verdes-Montenegro, Huiyuan Wang, Shun Wang

“…Combining new H i data from a synergetic survey of Australian Square Kilometre Array Pathfinder (ASKAP) Widefield ASKAP L -band Legacy All-sky Blind surveY and Five-hundred-meter Aperture Spherical radio Telescope with the Arecibo Legacy Fast ALFA data, we study the effect of ram pressure and tidal interactions in the NGC 4636 group. …”
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Brightest Cluster Galaxy Formation in the z = 4.3 Protocluster SPT 2349-56: Discovery of a Radio-loud Active Galactic Nucleus by Scott C. Chapman, Ryley Hill, Manuel Aravena, Melanie Archipley, Arif Babul, James Burgoyne, Rebecca E. A. Canning, Roger P. Deane, Carlos De Breuck, Anthony H. Gonzalez, Christopher C. Hayward, Seon Woo Kim, Matt Malkan, Dan P. Marrone, Vincent McIntyre, Eric Murphy, Emily Pass, Ryan W. Perry, Kedar A. Phadke, Douglas Rennehan, Cassie Reuter, Kaja M. Rotermund, Douglas Scott, Nick Seymour, Manuel Solimano, Justin Spilker, Anthony A. Stark, Nikolaus Sulzenauer, Nick Tothill, Joaquin D. Vieira, David Vizgan, George Wang, Axel Weiss

“…MeerKAT and the Australian Square Kilometre Array Pathfinder also detect the source at 816 MHz and 888 MHz, respectively, constraining the radio spectral index to α = −1.45 ± 0.16, implying L _1.4,rest = (2.2 ± 0.2) × 10 ^26 W Hz ^−1 . …”
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EMU Detection of a Large and Low Surface Brightness Galactic SNR G288.8–6.3 by Miroslav D. Filipović, Shi Dai, Bojan Arbutina, Natasha Hurley-Walker, Robert Brose, Werner Becker, Hidetoshi Sano, Dejan Urošević, T. H. Jarrett, Andrew M. Hopkins, Rami Z. E. Alsaberi, R. Alsulami, Cristobal Bordiu, Brianna Ball, Filomena Bufano, Christopher Burger-Scheidlin, Evan Crawford, Jayanne English, Frank Haberl, Adriano Ingallinera, Anna D. Kapinska, Patrick J. Kavanagh, Bärbel S. Koribalski, Roland Kothes, Sanja Lazarević, Jonathan Mackey, Gavin Rowell, Denis Leahy, Sara Loru, Peter J. Macgregor, Luciano Nicastro, Ray P. Norris, Simone Riggi, Manami Sasaki, Milorad Stupar, Corrado Trigilio, Grazia Umana, Tessa Vernstrom, Branislav Vukotić

“…We present the serendipitous detection of a new Galactic supernova remnant (SNR), G288.8–6.3, using data from the Australian Square Kilometre Array Pathfinder (ASKAP) Evolutionary Map of the Universe (EMU) survey. …”
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