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51 papers · 1 filter
Initial Size Distribution of the Galactic Globular Cluster System
Jihye Shin, Sungsoo Kim, Suk-Jin Yoon +1
Despite the importance of their size evolution in understanding the dynamical evolution of globular clusters (GCs) of the Milky Way, studies are rare that focus specifically on thi…
On EVH black hole solution in Heterotic string theory
Hossein Yavartanoo
We study the near horizon geometry of charged rotating black holes in toroidal compactifications of heterotic string theory. We analyze the extremal vanishing horizon (EVH) limit f…
Variability at the Edge: Optical Near/IR Rapid Cadence Monitoring of Newly Outbursting FU Orionis Object HBC 722
Joel D. Green, Paul Robertson, Giseon Baek +7
We present the detection of day-timescale periodic variability in the r-band lightcurve of newly outbursting FU Orionis-type object HBC 722, taken from > 42 nights of observation w…
Kappa Distribution Model for Hard X-Ray Coronal Sources of Solar Flares
M. Oka, S. Ishikawa, P. Saint-Hilaire +2
Solar flares produce hard X-ray emission of which the photon spectrum is often represented by a combination of thermal and power-law distributions. However, the estimates of the nu…
Conformally Lifshitz solutions from Horava-Lifshitz Gravity
Mohsen Alishahiha, Hossein Yavartanoo
We show that the IR action of the healthy non-projectable Hořava-Lifshitz (HL) gravity and its small modification exhibit asymptotically Lifshitz and hyperscaling violating solutio…
Doppler shift of hot coronal lines in a moss area of an active region
Neda Dadashi, Luca Teriaca, Durgesh Tripathi +2
The moss is the area at the footpoint of the hot (3 to 5 MK) loops forming the core of the active region where emission is believed to result from the heat flux conducted down to t…