Astrophysics – Page 459 – Kavli Institute Pre-Print Publications

Probing squeezing for gravitational-wave detectors with an audio-band field

Posted by klaurent March 8, 2022MIT

Kavli Affiliate: Lisa Barsotti | First 5 Authors: Dhruva Ganapathy, Victoria Xu, Wenxuan Jia, Chris Whittle, Maggie Tse | Summary: Squeezed vacuum states are now employed in gravitational-wave interferometric detectors, enhancing their sensitivity and thus enabling richer astrophysical observations. In future observing runs, the detectors will incorporate a filter cavity to suppress quantum radiation pressure […]

Continue..

Molecular gas in z~6 quasar host galaxies

Posted by klaurent March 7, 2022Peking

Kavli Affiliate: Ran Wang | First 5 Authors: Roberto Decarli, Antonio Pensabene, Bram Venemans, Fabian Walter, Eduardo Banados | Summary: We investigate the molecular gas content of z~6 quasar host galaxies using the IRAM / Northern Extended Millimeter Array. We target the 3mm dust continuum, and the line emission from CO(6-5), CO(7-6), [CI]2-1 in 10 […]

Continue..

Undersampled MRI Reconstruction with Side Information-Guided Normalisation

Posted by klaurent March 7, 2022Peking

Kavli Affiliate: Jing Wang | First 5 Authors: Xinwen Liu, Jing Wang, Cheng Peng, Shekhar S. Chandra, Feng Liu | Summary: Magnetic resonance (MR) images exhibit various contrasts and appearances based on factors such as different acquisition protocols, views, manufacturers, scanning parameters, etc. This generally accessible appearance-related side information affects deep learning-based undersampled magnetic resonance […]

Continue..

Uncovering the true periods of the young sub-Neptunes orbiting TOI-2076

Posted by klaurent March 7, 2022MIT

Kavli Affiliate: Avi Shporer | First 5 Authors: Hugh P. Osborn, Andrea Bonfanti, Davide Gandolfi, Christina Hedges, Adrien Leleu | Summary: Context: TOI-2076 is a transiting three-planet system of sub-Neptunes orbiting a bright (G = 8.9 mag), young ($340pm80$ Myr) K-type star. Although a validated planetary system, the orbits of the two outer planets were […]

Continue..

RumorLens: Interactive Analysis and Validation of Suspected Rumors on Social Media

Posted by klaurent March 7, 2022Peking

Kavli Affiliate: Ran Wang | First 5 Authors: Ran Wang, Kehan Du, Qianhe Chen, Yifei Zhao, Mojie Tang | Summary: With the development of social media, various rumors can be easily spread on the Internet and such rumors can have serious negative effects on society. Thus, it has become a critical task for social media […]

Continue..

Exploring the radio spectral energy distribution of the ultraluminous radio-quiet quasar SDSS J0100+2802 at redshift 6.3

Posted by klaurent March 6, 2022March 28, 2022Peking

Kavli Affiliate: Ran Wang, Linhua Jiang | First 5 Authors: Yuanqi Liu, Ran Wang, Emmanuel Momjian, Jeff Wagg, Xiaolong Yang | Summary: We report deep Karl G. Jansky Very Large Array (VLA) observations of the optically ultraluminous and radio-quiet quasar SDSS J010013.02 + 280225.8 (hereafter J0100+2802) at redshift $z=$6.3. We detected the radio continuum emission […]

Continue..

Exploring the radio spectral energy distribution of the ultraluminous radio-quiet quasar SDSS J0100+2802 at redshift 6.3

Posted by klaurent March 6, 2022Peking

Kavli Affiliate: Linhua Jiang | First 5 Authors: Yuanqi Liu, Ran Wang, Emmanuel Momjian, Jeff Wagg, Xiaolong Yang | Summary: We report deep Karl G. Jansky Very Large Array (VLA) observations of the optically ultraluminous and radio-quiet quasar SDSS J010013.02 + 280225.8 (hereafter J0100+2802) at redshift $z=$6.3. We detected the radio continuum emission at 1.5 […]

Continue..

Exploring the radio spectral energy distribution of the ultraluminous radio-quiet quasar SDSS J0100+2802 at redshift 6.3

Posted by klaurent March 6, 2022Peking

Kavli Affiliate: Xuebing Wu | First 5 Authors: Yuanqi Liu, Ran Wang, Emmanuel Momjian, Jeff Wagg, Xiaolong Yang | Summary: We report deep Karl G. Jansky Very Large Array (VLA) observations of the optically ultraluminous and radio-quiet quasar SDSS J010013.02 + 280225.8 (hereafter J0100+2802) at redshift $z=$6.3. We detected the radio continuum emission at 1.5 […]

Continue..

Improved Hamiltonians for Quantum Simulations

Posted by klaurent March 5, 2022March 21, 2022Chicago

Kavli Affiliate: Marcela Carena | First 5 Authors: Marcela Carena, Henry Lamm, Ying-Ying Li, Wanqiang Liu, | Summary: The quantum simulation of lattice gauge theories for the foreseeable future will be hampered by limited resources. The historical success of Symanzik-improved lattice actions in classical simulations strongly suggests that improved Hamiltonians will reduce quantum resources for […]

Continue..

TOI-1696: a nearby M4 dwarf with a $3R_oplus$ planet in the Neptunian desert

Posted by klaurent March 5, 2022March 22, 2022MIT

Kavli Affiliate: George R. Ricker, Sara Seager | First 5 Authors: Mayuko Mori, John H. Livingston, Jerome de Leon, Norio Narita, Teruyuki Hirano | Summary: We present the discovery and validation of a temperate sub-Neptune around the nearby mid-M dwarf TIC 470381900 (TOI-1696), with a radius of $3.09 pm 0.11 ,R_oplus$ and an orbital period […]

Continue..