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A Hydrogen Atmosphere Spectral Model Applied to the Neutron Star X7 in the Globular Cluster 47 Tucanae
- C. Heinke, G. Rybicki, R. Narayan, J. Grindlay
- Physics
- 23 June 2005
Current X-ray missions are providing high-quality X-ray spectra from neutron stars (NSs) in quiescent low-mass X-ray binaries (qLMXBs). This has motivated us to calculate new hydrogen atmosphere…
Bayesian Estimation of Hardness Ratios: Modeling and Computations
- Taeyoung Park, V. Kashyap, B. Wargelin
- Computer Science
- 10 June 2006
TLDR
High-Resolution X-ray Imaging of a Globular Cluster Core: Compact Binaries in 47Tuc
- J. Grindlay, C. Heinke, P. Edmonds, S. Murray
- PhysicsScience
- 17 May 2001
TLDR
Formation and evolution of compact binaries in globular clusters – II. Binaries with neutron stars
- N. Ivanova, C. Heinke, F. Rasio, K. Belczynski, J. Fregeau
- Physics
- 27 June 2007
In this paper, the second of a series, we study the stellar dynamical and evolutionary processes leading to the formation of compact binaries containing neutron stars (NSs) in dense globular…
A Deep Chandra Survey of the Globular Cluster 47 Tucanae: Catalog of Point Sources
- C. Heinke, J. Grindlay, P. Freire
- Physics
- 7 March 2005
We have detected 300 X-ray sources within the half-mass radius (2.′79) of the globular cluster 47 Tucanae in a deep (281 ks) Chandra exposure. We perform photometry and simple spectral fitting for…
Flaring Activity of Sagittarius A* at 43 and 22 GHz: Evidence for Expanding Hot Plasma
- F. Yusef-Zadeh, D. Roberts, M. Wardle, C. Heinke, G. Bower
- Physics
- 24 March 2006
We have carried out Very Large Array (VLA) continuum observations to study the variability of Sgr A* at 43 GHz (λ = 7 mm) and 22 GHz (λ = 13 mm). A low level of flare activity has been detected with…
Discovery of Powerful Gamma-Ray Flares from the Crab Nebula
- M. Tavani, A. Bulgarelli, G. Bignami
- PhysicsScience
- 12 January 2011
TLDR
Analysis of the Quiescent Low-Mass X-Ray Binary Population in Galactic Globular Clusters
- C. Heinke, J. Grindlay, A. Cool
- Physics
- 22 May 2003
Quiescent low-mass X-ray binaries (qLMXBs) containing neutron stars have been identified in several globular clusters using Chandra or XMM X-ray observations, via their distinctive soft thermal…
SIMULTANEOUS MULTI-WAVELENGTH OBSERVATIONS OF Sgr A* DURING 2007 APRIL 1–11
- F. Yusef-Zadeh, H. Bushouse, H. Maness
- Physics
- 22 July 2009
We report the detection of variable emission from Sgr A* in almost all wavelength bands (i.e., centimeter, millimeter, submillimeter, near-IR, and X-rays) during a multi-wavelength observing…
A Multiwavelength Study of Sgr A*: The Role of Near-IR Flares in Production of X-Ray, Soft γ-Ray, and Submillimeter Emission
- F. Yusef-Zadeh, H. Bushouse, G. Belanger
- Physics
- 27 October 2005
Although Sgr A* is known to be variable in radio, millimeter, near-IR, and X-rays, the correlation of the variability across its spectrum has not been fully studied. Here we describe highlights of…
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