TIC 219006972: A Compact, Coplanar Quadruple Star System Consisting of Two Eclipsing Binaries with an Outer Period of 168 days

Kavli Affiliate: Saul A. Rappaport | First 5 Authors: Veselin B. Kostov, Tamas Borkovits, Saul A. Rappaport, Brian P. Powell, Andras Pal | Summary: We present the discovery of a new highly compact quadruple star system, TIC 219006972, consisting of two eclipsing binary stars with orbital periods of 8.3 days and 13.7 days, and an […]


Continue.. TIC 219006972: A Compact, Coplanar Quadruple Star System Consisting of Two Eclipsing Binaries with an Outer Period of 168 days

TIC 219006972: A Compact, Coplanar Quadruple Star System Consisting of Two Eclipsing Binaries with an Outer Period of 168 days

Kavli Affiliate: Saul A. Rappaport | First 5 Authors: Veselin B. Kostov, Tamas Borkovits, Saul A. Rappaport, Brian P. Powell, Andras Pal | Summary: We present the discovery of a new highly compact quadruple star system, TIC 219006972, consisting of two eclipsing binary stars with orbital periods of 8.3 days and 13.7 days, and an […]


Continue.. TIC 219006972: A Compact, Coplanar Quadruple Star System Consisting of Two Eclipsing Binaries with an Outer Period of 168 days

Leveraging vision to understand curiosity

Kavli Affiliate: Jacqueline Gottlieb | Authors: Michael Cohanpour, Mariam Aly and Jacqueline Gottlieb | Summary: Humans are immensely curious and motivated to reduce uncertainty. Inspired by studies of sensory uncertainty, we hypothesized that visual areas provide multivariate representations of uncertainty, which are read out by higher-order areas that encode confidence and, ultimately, translated into curiosity. […]


Continue.. Leveraging vision to understand curiosity

Orbital decay in an accreting and eclipsing 13.7 minute orbital period binary with a luminous donor

Kavli Affiliate: Saul Rappaport | First 5 Authors: Kevin B. Burdge, Kareem El-Badry, Saul Rappaport, Tin Long Sunny Wong, Evan B. Bauer | Summary: We report the discovery of ZTF J0127+5258, a compact mass-transferring binary with an orbital period of 13.7 minutes. The system contains a white dwarf accretor, which likely originated as a post-common […]


Continue.. Orbital decay in an accreting and eclipsing 13.7 minute orbital period binary with a luminous donor

Orbital decay in an accreting and eclipsing 13.7 minute orbital period binary with a luminous donor

Kavli Affiliate: Saul Rappaport | First 5 Authors: Kevin B. Burdge, Kareem El-Badry, Saul Rappaport, Tin Long Sunny Wong, Evan B. Bauer | Summary: We report the discovery of ZTF J0127+5258, a compact mass-transferring binary with an orbital period of 13.7 minutes. The system contains a white dwarf accretor, which likely originated as a post-common […]


Continue.. Orbital decay in an accreting and eclipsing 13.7 minute orbital period binary with a luminous donor

Orbital decay in an accreting and eclipsing 13.7 minute orbital period binary with a luminous donor

Kavli Affiliate: Saul Rappaport | First 5 Authors: Kevin B. Burdge, Kareem El-Badry, Saul Rappaport, Tin Long Sunny Wong, Evan B. Bauer | Summary: We report the discovery of ZTF J0127+5258, a compact mass-transferring binary with an orbital period of 13.7 minutes. The system contains a white dwarf accretor, which likely originated as a post-common […]


Continue.. Orbital decay in an accreting and eclipsing 13.7 minute orbital period binary with a luminous donor

A tight universal relation between the shape eccentricity and the moment of inertia for rotating neutron stars

Kavli Affiliate: Lijing Shao | First 5 Authors: Yong Gao, Lijing Shao, Jan Steinhoff, , | Summary: Universal relations that are insensitive to the equation of state (EoS) are useful in reducing the parameter space when measuring global quantities of neutron stars (NSs). In this paper, we reveal a new universal relation that connects the […]


Continue.. A tight universal relation between the shape eccentricity and the moment of inertia for rotating neutron stars

Physical space approach to wave equation bilinear estimates revisit

Kavli Affiliate: Yi Zhou | First 5 Authors: Sheng Wang, Yi Zhou, , , | Summary: In the paper by Klainerman, Rodnianski and Tao cite{Klainerman-Rodnianski-Tao}, they give a physical space proof to a classical result of Klainerman and Machedon cite{Klainerman-Machedon} for the bilinear space-time estimates of null forms. In this paper, we shall give an […]


Continue.. Physical space approach to wave equation bilinear estimates revisit