159 citations
- Texas A&M UniversityUS57 papers
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- Institute of Theoretical PhysicsCN29 papers
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12 papers · 1 filter
The M4 Core Project with HST --- I. Overview and First-Epoch
L. R. Bedin, J. Anderson, D. C. Heggie +14
We present an overview of the ongoing Hubble Space Telescope large program GO-12911. The program is focused on the core of M4, the nearest Galactic globular cluster, and the observ…
Enumeration of finite inverse semigroups
Martin E. Malandro
We give an efficient algorithm for the enumeration up to isomorphism of the inverse semigroups of order n, and we count the number S(n) of inverse semigroups of order n<=15. This i…
SN 2005ip: A Luminous Type IIn Supernova Emerging from a Dense Circumstellar Medium as Revealed by X-Ray Observations
Satoru Katsuda, Keiichi Maeda, Takaya Nozawa +2
We report on X-ray spectral evolution of the nearby Type IIn supernova (SN) 2005ip, based on Chandra and Swift observations covering from ~1 to 6 years after the explosion. X-ray s…
Discovery of the Third Transient X-ray Binary in the Galactic Globular Cluster Terzan 5
Arash Bahramian, Craig O. Heinke, Gregory R. Sivakoff +7
We report and study the outburst of a new transient X-ray binary (XRB) in Terzan 5, the third detected in this globular cluster, Swift J174805.3-244637 or Terzan 5 X-3. We find cle…
The neutron star transient and millisecond pulsar in M28: from sub-luminous accretion to rotation-powered quiescence
Manuel Linares, Arash Bahramian, Craig Heinke +6
The X-ray transient IGR J18245-2452 in the globular cluster M28 contains the first neutron star (NS) seen to switch between rotation-powered and accretion-powered pulsations. We an…
A Complete Solution Classification and Unified Algorithmic Treatment for the One- and Two-Step Asymmetric S-Transverse Mass (MT2) Event Scale Statistic
Joel W. Walker
The MT2 or "s-transverse mass" statistic was developed to associate a parent mass scale to a missing transverse energy signature, given that escaping particles are generally expect…