Axion dark matter-induced echo of supernova remnants

Kavli Affiliate: Kiyoshi Masui | First 5 Authors: Yitian Sun, Katelin Schutz, Anjali Nambrath, Calvin Leung, Kiyoshi Masui | Summary: Axions are a theoretically promising dark matter (DM) candidate. In the presence of radiation from bright astrophysical sources at radio frequencies, nonrelativistic DM axions can undergo stimulated decay to two nearly back-to-back photons, meaning that […]


Continue.. Axion dark matter-induced echo of supernova remnants

TESS Eclipsing Binary Stars. I. Short cadence observations of 4584 eclipsing binaries in Sectors 1-26

Kavli Affiliate: Avi Shporer | First 5 Authors: Andrej Prsa, Angela Kochoska, Kyle E. Conroy, Nora Eisner, Daniel R. Hey | Summary: In this paper we present a catalog of 4584 eclipsing binaries observed during the first two years (26 sectors) of the TESS survey. We discuss selection criteria for eclipsing binary candidates, detection of […]


Continue.. TESS Eclipsing Binary Stars. I. Short cadence observations of 4584 eclipsing binaries in Sectors 1-26

Mass of the dynamically hot inner stellar halo predicts the ancient accreted stellar mass

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Ling Zhu, Annalisa Pillepich, Glenn van de Ven, Ryan Leaman, Lars Hernquist | Summary: Galactic dynamical structures are fossil records of the assembly histories of galaxies. By analyzing the cosmological hydrodynamical simulation TNG50, we find that a dynamical structure that we call the "hot inner stellar halo," […]


Continue.. Mass of the dynamically hot inner stellar halo predicts the ancient accreted stellar mass

Constraints on small-scale primordial density fluctuation from cosmic microwave background through dark matter annihilation

Kavli Affiliate: Masahiro Kawasaki | First 5 Authors: Masahiro Kawasaki, Hiromasa Nakatsuka, Kazunori Nakayama, , | Summary: The cosmic microwave background (CMB) observation by the Planck satellite precisely determines primordial curvature fluctuations on larger scales than $mathcal O(1),mathrm{Mpc}$, while the small-scale curvature fluctuation is still less constrained. The constraint on small-scale fluctuations is highly improved […]


Continue.. Constraints on small-scale primordial density fluctuation from cosmic microwave background through dark matter annihilation

Combined analysis of Belle and Belle II data to determine the CKM angle $ φ_{3} $ using $B^+ to D(K_{S}^0 h^- h^+) h^+$ decays

Kavli Affiliate: T. Higuchi | First 5 Authors: Belle, Belle II Collaborations, :, F. Abudinén, L. Aggarwal | Summary: We present a measurement of the Cabibbo-Kobayashi-Maskawa unitarity triangle angle $ phi_{3} $ (also known as~$gamma$) using a model-independent Dalitz plot analysis of linebreak $B^+to Dleft(K_{S}^{0}h^{+}h^{-}right)h^+$, where $D$ is either a $D^0$ or $bar{D}{}^0$ meson and […]


Continue.. Combined analysis of Belle and Belle II data to determine the CKM angle $ φ_{3} $ using $B^+ to D(K_{S}^0 h^- h^+) h^+$ decays

The LHS 1678 System: Two Earth-Sized Transiting Planets and an Astrometric Companion Orbiting an M Dwarf Near the Convective Boundary at 20 pc

Kavli Affiliate: Avi Shporer | First 5 Authors: Michele L. Silverstein, Joshua E. Schlieder, Thomas Barclay, Benjamin J. Hord, Wei-Chun Jao | Summary: We present the TESS discovery of the LHS 1678 (TOI-696) exoplanet system, comprised of two approximately Earth-sized transiting planets and a likely astrometric brown dwarf orbiting a bright ($V_J$=12.5, $K_s$=8.3) M2 dwarf […]


Continue.. The LHS 1678 System: Two Earth-Sized Transiting Planets and an Astrometric Companion Orbiting an M Dwarf Near the Convective Boundary at 20 pc

What drives the scatter of local star-forming galaxies in the BPT diagrams? A Machine Learning based analysis

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Mirko Curti, Connor Hayden-Pawson, Roberto Maiolino, Francesco Belfiore, Filippo Mannucci | Summary: We investigate which physical properties are most predictive of the position of local star forming galaxies on the BPT diagrams, by means of different Machine Learning (ML) algorithms. Exploiting the large statistics from the Sloan […]


Continue.. What drives the scatter of local star-forming galaxies in the BPT diagrams? A Machine Learning based analysis

On games and simulators as a platform for development of artificial intelligence for command and control

Kavli Affiliate: John Richardson | First 5 Authors: Vinicius G. Goecks, Nicholas Waytowich, Derrik E. Asher, Song Jun Park, Mark Mittrick | Summary: Games and simulators can be a valuable platform to execute complex multi-agent, multiplayer, imperfect information scenarios with significant parallels to military applications: multiple participants manage resources and make decisions that command assets […]


Continue.. On games and simulators as a platform for development of artificial intelligence for command and control

Possible X-ray Quasi-Periodic Eruptions in a Tidal Disruption Event Candidate

Kavli Affiliate: Erin Kara | First 5 Authors: Joheen Chakraborty, Erin Kara, Megan Masterson, Margherita Giustini, Giovanni Miniutti | Summary: X-ray Quasi-Periodic Eruptions (QPEs) are a recently discovered phenomenon associated with supermassive black holes at the centers of galaxies. They are high amplitude soft X-ray flares that recur on timescales of hours, but what causes […]


Continue.. Possible X-ray Quasi-Periodic Eruptions in a Tidal Disruption Event Candidate