The Magnificent Seven in the dusty prairie: The role of interstellar absorption on the observed neutron star population
Astrophysics and Space Science 308:1-4 (2007) 171-179
Abstract:
The Magnificent Seven have all been discovered by their exceptional soft X-ray spectra and high ratios of X-ray to optical flux. They all are considered to be nearby sources. Searching for similar objects with larger distances, one expects larger interstellar absorption resulting in harder X-ray counterparts. Current interstellar absorption treatment depends on chosen abundances and scattering cross-sections of the elements as well as on the 3D distribution of the interstellar medium. After a discussion of these factors we use the comprehensive 3D measurements of the Local Bubble by Lallement et al. (2003, Astron. Astrophys. 411, 447) to construct two simple models of the 3D distribution of the hydrogen column density. We test these models by using a set of soft X-ray sources with known distances. Finally, we discuss possible applications for distance estimations and population synthesis studies. 漏 Springer Science+Business Media B.V. 2007.Simultaneous X-ray, radio, near-infrared, and optical monitoring of young stellar objects in the Coronet cluster
Astronomy & Astrophysics EDP Sciences 464:3 (2007) 1003-1013
The Magnificent Seven in the dusty prairie
Chapter in Isolated Neutron Stars: From the Surface to the Interior, Springer Nature (2007) 171-179
The Magnificent Seven in the dusty prairie -- The role of interstellar absorption on the observed neutron star population
(2006)
Candidate Isolated Neutron Stars and Other Optically Blank X-Ray Fields Identified from the ROSAT All-Sky and Sloan Digital Sky Surveys**Includes observations obtained with the Apache Point Observatory 3.5 m telescope, which is owned and operated by the Astrophysical Research Consortium.
The Astronomical Journal American Astronomical Society 131:3 (2006) 1740-1749