Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Erin Boettcher, Hsiao-Wen Chen, Fakhri S. Zahedy, Thomas J. Cooper, Sean D. Johnson | Summary: We report the serendipitous detection of an H$_{2}$-bearing damped Lyman-$alpha$ absorber at z = 0.576 in the spectrum of the QSO J0111-0316 in the Cosmic Ultraviolet Baryon Survey. Spectroscopic observations from […]

Kavli Affiliate: Frank Wilczek | First 5 Authors: Maulik Parikh, Frank Wilczek, George Zahariade, , | Summary: We develop a formalism to calculate the response of a model gravitational wave detector to a quantized gravitational field. Coupling a detector to a quantum field induces stochastic fluctuations ("noise") in the length of the detector arm. The […]

Kavli Affiliate: Frank Wilczek | First 5 Authors: Maulik Parikh, Frank Wilczek, George Zahariade, , | Summary: For the purpose of analyzing observed phenomena, it has been convenient, and thus far sufficient, to regard gravity as subject to the deterministic principles of classical physics, with the gravitational field obeying Newton’s law or Einstein’s equations. Here […]

Kavli Affiliate: Moritz Guenther | First 5 Authors: Nancy Remage Evans, H. Moritz Guenther, Howard E. Bond, Gail H. Schaefer, Brian D. Mason | Summary: Cepheids in multiple systems provide information on the outcome of the formation of massive stars. They can also lead to exotic end-stage objects. This study concludes our survey of 70 […]

Kavli Affiliate: Herman Marshall | First 5 Authors: Daniel Schwartz, Aneta Siemiginowska, Brad Snios, Diana Worrall, Mark Birkinshaw | Summary: We report the detection of extended X-ray emission from two high-redshift radio quasars. These quasars, J1405+0415 at $z$=3.208 and J1610+1811 at $z$=3.118, were observed in a Chandra snapshot survey selected from a complete sample of […]

Kavli Affiliate: Herman Marshall | First 5 Authors: Daniel Schwartz, Aneta Siemiginowska, Brad Snios, Diana Worrall, Mark Birkinshaw | Summary: We report the detection of extended X-ray emission from two high-redshift radio quasars. These quasars, J1405+0415 at $z$=3.208 and J1610+1811 at $z$=3.118, were observed in a Chandra snapshot survey selected from a complete sample of […]

Kavli Affiliate: Anna Frebel | First 5 Authors: Kaitlin C. Rasmussen, Joseph Zepeda, Timothy C. Beers, Vinicius M. Placco, Eric Depagne | Summary: We present the first release of a large-scale study of relatively bright (V < 13.5) metal-poor stars observed with the Southern African Large Telescope (SALT), based on high-resolution spectra of 50 stars […]

Kavli Affiliate: David A. Principe | First 5 Authors: Amit Kashi, David A. Principe, Noam Soker, Joel H. Kastner, | Summary: The massive binary system Eta Carinae is characterized by intense colliding winds that form shocks and emit X-rays. The system is highly eccentric ($esimeq0.9$), resulting in modulated X-ray emission during its 5.54 year orbit. […]

Kavli Affiliate: Salvatore Vitale | First 5 Authors: Hsin-Yu Chen, Carl-Johan Haster, Salvatore Vitale, Will M. Farr, Maximiliano Isi | Summary: The identification of the electromagnetic counterpart candidate ZTF19abanrhr to the binary black hole merger GW190521 opens the possibility to infer cosmological parameters from this standard siren with a uniquely identified host galaxy. The distant […]

Kavli Affiliate: Robert F. Goeke | First 5 Authors: Kristo Ment, Jonathan Irwin, David Charbonneau, Jennifer G. Winters, Amber Medina | Summary: We present the discovery of TOI 540 b, a hot planet slightly smaller than Earth orbiting the low-mass star 2MASS J05051443-4756154. The planet has an orbital period of $P = 1.239149$ days ($pm$ […]