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17 papers · 1 filter
Direct Measurement of Interstellar Extinction Toward Young Stars Using Atomic Hydrogen Lyman- Absorption
Matthew McJunkin, Kevin France, P. C. Schneider +5
Interstellar reddening corrections are necessary to reconstruct the intrinsic spectral energy distributions (SEDs) of accreting protostellar systems. The stellar SED determines the…
Symplectic structures on the integration of exact Courant algebroids
Rajan Amit Mehta, Xiang Tang
We construct an infinite-dimensional symplectic 2-groupoid as the integration of an exact Courant algebroid. We show that every integrable Dirac structure integrates to a "Lagrangi…
JLab Measurement of the He Charge Form Factor at Large Momentum Transfers
A. Camsonne, A. T. Katramatou, M. Olson +66
The charge form factor of $^$4He has been extracted in the range 29 fm fm from elastic electron scattering, detecting He nuclei and electrons in…
Interpreting Near Infrared Hydrogen Line Ratios in T Tauri Stars
Suzan Edwards, John Kwan, William Fischer +4
In accreting young stars one of the prominent spectral features in the near infrared is the Paschen and Brackett series in emission. We examine hydrogen line ratios for 16 classica…
Projective Dimension of String and Cycle Hypergraphs
Kuei-Nuan Lin, Paolo Mantero
We present a closed formula and a simple algorithmic procedure to compute the projective dimension of square-free monomial ideals associated to string or cycle hypergraphs. As an a…
Benford's Law and Continuous Dependent Random Variables
Thealexa Becker, David Burt, Taylor C. Corcoran +9
Many mathematical, man-made and natural systems exhibit a leading-digit bias, where a first digit (base 10) of 1 occurs not 11\% of the time, as one would expect if all digits were…