On the Scarcity of Dense Cores ($n>10^{5}$ cm$^{-3}$) in High Latitude Planck Galactic Cold Clumps

Kavli Affiliate: Ke Wang | First 5 Authors: Fengwei Xu, Ke Wang, Tie Liu, David Eden, Xunchuan Liu | Summary: High-latitude ($|b|>30^{circ}$) molecular clouds have virial parameters that exceed 1, but whether these clouds can form stars has not been studied systematically. Using JCMT SCUBA-2 archival data, we surveyed 70 fields that target high-latitude Planck […]


Continue.. On the Scarcity of Dense Cores ($n>10^{5}$ cm$^{-3}$) in High Latitude Planck Galactic Cold Clumps

On the Scarcity of Dense Cores ($n>10^{5}$ cm$^{-3}$) in High Latitude Planck Galactic Cold Clumps

Kavli Affiliate: Ke Wang | First 5 Authors: Fengwei Xu, Ke Wang, Tie Liu, David Eden, Xunchuan Liu | Summary: High-latitude ($|b|>30^{circ}$) molecular clouds have virial parameters that exceed 1, but whether these clouds can form stars has not been studied systematically. Using JCMT SCUBA-2 archival data, we surveyed 70 fields that target high-latitude Planck […]


Continue.. On the Scarcity of Dense Cores ($n>10^{5}$ cm$^{-3}$) in High Latitude Planck Galactic Cold Clumps

Luminosity Functions of the Host Galaxies of Supernova

Kavli Affiliate: Naoki Yasuda | First 5 Authors: Zhuoxi Liang, Nao Suzuki, Mamoru Doi, Masayuki Tanaka, Naoki Yasuda | Summary: We present the luminosity functions and stellar mass functions of supernova (SN) host galaxies and test if they differ from the functions of normal field galaxies. We utilize homogeneous samples consisting of 273 SNe Ia […]


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Intensive Swift and LCO monitoring of PG 1302$-$102: AGN disk reverberation mapping of a supermassive black hole binary candidate

Kavli Affiliate: Erin Kara | First 5 Authors: Tingting Liu, Rick Edelson, Juan V. Hernández Santisteban, Erin Kara, John Montano | Summary: We present an intensive multiwavelength monitoring campaign of the quasar PG 1302$-$102 with Swift and the Las Cumbres Observatory network telescopes. At $zsim0.3$, it tests the limits of the reverberation mapping (RM) technique […]


Continue.. Intensive Swift and LCO monitoring of PG 1302$-$102: AGN disk reverberation mapping of a supermassive black hole binary candidate

Small-scale radio jets and tidal disruption events: A theory of high-luminosity compact symmetric objects

Kavli Affiliate: Roger D. Blandford | First 5 Authors: Andrew G. Sullivan, Roger D. Blandford, Mitchell C. Begelman, Mark Birkinshaw, Anthony C. S. Readhead | Summary: Double lobe radio sources associated with active galactic nuclei represent one of the longest studied groups in radio astronomy. A particular sub-group of double radio sources comprises the compact […]


Continue.. Small-scale radio jets and tidal disruption events: A theory of high-luminosity compact symmetric objects

Black-Box Access is Insufficient for Rigorous AI Audits

Kavli Affiliate: Max Tegmark | First 5 Authors: Stephen Casper, Carson Ezell, Charlotte Siegmann, Noam Kolt, Taylor Lynn Curtis | Summary: External audits of AI systems are increasingly recognized as a key mechanism for AI governance. The effectiveness of an audit, however, depends on the degree of system access granted to auditors. Recent audits of […]


Continue.. Black-Box Access is Insufficient for Rigorous AI Audits

Black-Box Access is Insufficient for Rigorous AI Audits

Kavli Affiliate: Max Tegmark | First 5 Authors: Stephen Casper, Carson Ezell, Charlotte Siegmann, Noam Kolt, Taylor Lynn Curtis | Summary: External audits of AI systems are increasingly recognized as a key mechanism for AI governance. The effectiveness of an audit, however, depends on the degree of access granted to auditors. Recent audits of state-of-the-art […]


Continue.. Black-Box Access is Insufficient for Rigorous AI Audits

The BLAST Observatory: A Sensitivity Study for Far-IR Balloon-borne Polarimeters

Kavli Affiliate: Susan E. Clark | First 5 Authors: The BLAST Observatory Collaboration, Gabriele Coppi, Simon Dicker, James E. Aguirre, Jason E. Austermann | Summary: Sensitive wide-field observations of polarized thermal emission from interstellar dust grains will allow astronomers to address key outstanding questions about the life cycle of matter and energy driving the formation […]


Continue.. The BLAST Observatory: A Sensitivity Study for Far-IR Balloon-borne Polarimeters

The BLAST Observatory: A Sensitivity Study for Far-IR Balloon-borne Polarimeters

Kavli Affiliate: Susan E. Clark | First 5 Authors: The BLAST Observatory Collaboration, Gabriele Coppi, Simon Dicker, James E. Aguirre, Jason E. Austermann | Summary: Sensitive wide-field observations of polarized thermal emission from interstellar dust grains will allow astronomers to address key outstanding questions about the life cycle of matter and energy driving the formation […]


Continue.. The BLAST Observatory: A Sensitivity Study for Far-IR Balloon-borne Polarimeters

Non-symmetrical sparking may hint “zits” on a pulsar surface

Kavli Affiliate: Renxin Xu | First 5 Authors: Zhengli Wang, Jiguang Lu, Jingchen Jiang, Shunshun Cao, Weiyang Wang | Summary: Pulsar electrodynamics could be relevant to the physics of stellar surface, which remains poorly understood for more than half a centenary and is difficult to probe due to the absence of direct and clear observational […]


Continue.. Non-symmetrical sparking may hint “zits” on a pulsar surface