Challenges and opportunities for time-delay cosmography with multi-messenger gravitational lensing. [PDF]
Birrer S +4 more
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Jets from a stellar-mass black hole are as relativistic as those from supermassive black holes. [PDF]
Zhang X +17 more
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Discovery of a star sensitive to the spin of Sagittarius A. [PDF]
Abd El Dayem K +92 more
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Extreme Artificial Airglow Induced by HF Pumping Sporadic E Layer at the SURA Facility. [PDF]
Beletsky A +10 more
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A Tri-Band Cooled Receiver for Geodetic VLBI. [PDF]
López-Pérez JA +16 more
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An X-ray-emitting protocluster at z ≈ 5.7 reveals rapid structure growth. [PDF]
Bogdán Á +3 more
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Inter-Comparison of UT1-UTC from 24-Hour, Intensives, and VGOS Sessions during CONT17. [PDF]
Raut S +5 more
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Exoplanets, extraterrestrial life and beyond: an interview with Douglas Lin. [PDF]
Xin 辛玲 L.
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Imaging black holes: a VLBI success story. [PDF]
Zensus JA.
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Profile of James Peebles, Michel Mayor, and Didier Queloz: 2019 Nobel Laureates in Physics. [PDF]
Bahcall NA, Burrows A.
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