Kavli Affiliate: Philip H. Scherrer | Summary:NASA’s Solar Dynamics Observatory (SDO) was launched 11 February 2010 with 3 instruments on board, including the Helioseismic and Magnetic Imager (HMI). Since beginning normal operations on 1 May 2010, HMI has observed the Sun’s entire visible disk almost continuously. HMI collects sequences of polarized filtergrams taken at a […]
Kavli Affiliate: Hiraku Nakajima | Summary:We show that Coulomb branches of quiver gauge theories of affine type $A$ are Cherkis bow varieties, which have been introduced as ADHM type description of moduli space of instantons on the Taub-NUT space equivariant under a cyclic group action. | Search Query: arXiv Query: search_query=au:”Nakajima Hiraku”&id_list=&start=0&max_results=10Read More
Kavli Affiliate: Kunio Inoue | Summary:A high purity and large volume NaI(Tl) scintillator was developed to search for cosmic dark matter. The required densities of radioactive impurities (RIs) such as U-chain, Th-chain are less than a few ppt to establish high sensitivity to dark matter. The impurity of RIs were effectively reduced by selecting raw […]
Kavli Affiliate: Claude Canizares | Summary:We survey the Si K edge structure in various absorbed Galactic low-mass X-ray binaries (LMXBs) to study states of silicon in the inter- and circum-stellar medium. The bulk of these LMXBs lie toward the Galactic bulge region and all have column densities above $10^22$ cm$^-2$. The observations were performed with […]
Kavli Affiliate: Edmund Bertschinger | Summary:Initiatives to increase the number, persistence, and success of women in physics in the US reach pre-teen girls through senior women. Programs exist at both the local and national levels. In addition, researchers have investigated issues related to gender equity in physics and physics education. Anecdotal evidence suggests increased media […]
Kavli Affiliate: Dustin M. Schroeder | Summary:We estimate the sensitivity of a lander-based instrument for the passive radio detection of a subsurface ocean beneath the ice shell of Europa, expected to be between 3~km – 30~km thick, using Jupiter’s decametric radiation. A passive technique was previously studied for an orbiter. Using passive detection in a […]
Kavli Affiliate: Maria T. Zuber | Summary:Previous observations suggested that Ceres has active but possibly sporadic water outgassing, and possibly varying spectral characteristics in a time scale of months. We used all available data of Ceres collected in the past three decades from the ground and the Hubble Space Telescope, and the newly acquired images […]
Kavli Affiliate: Hiraku Nakajima | Summary:Consider the $3$-dimensional $mathcal N=4$ supersymmetric gauge theory associated with a compact Lie group $G_c$ and its quaternionic representation $mathbf M$. Physicists study its Coulomb branch, which is a noncompact hyper-Kähler manifold with an $mathrmSU(2)$-action, possibly with singularities. We give a mathematical definition of the Coulomb branch as an affine […]
Kavli Affiliate: Concetta Cartaro | Summary:Data from High Energy Physics (HEP) experiments are collected with significant financial and human effort and are mostly unique. An inter-experimental study group on HEP data preservation and long-term analysis was convened as a panel of the International Committee for Future Accelerators (ICFA). The group was formed by large collider-based […]
Kavli Affiliate: Masaki Yamashita | Summary:XMASS-I uses single phase liquid xenon technology for aiming at the direct detection of dark matter. The detector observes only scintillation light by 2 inch 642 PMTs which are placed in sphere shape around an active volume. With its large mass target and high photoelectron yield, we conducted a search […]