Discovery of an Isolated Compact Object at High Galactic Latitude

@article{Rutledge2007DiscoveryOA,
  title={Discovery of an Isolated Compact Object at High Galactic Latitude},
  author={Robert E. Rutledge and Derek B. Fox and A. H. Shevchuk},
  journal={The Astrophysical Journal},
  year={2007},
  volume={672},
  pages={1137 - 1143}
}
We report the discovery of a compact object at high Galactic latitude. The object was initially identified as a ROSAT All-Sky Survey Bright Source Catalog X-ray source, 1RXS J141256.0+792204, statistically likely to possess a high X-ray to optical flux ratio. Further observations using Swift, Gemini-North, and the Chandra X-Ray Observatory refined the source position and confirmed the absence of any optical counterpart to an X-ray to optical flux ratio of FX(0.1–2.4 keV)/FV > 8700 (3… 

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References

SHOWING 1-10 OF 54 REFERENCES

Discovery of a Candidate Central Compact Object in the Galactic Nonthermal SNR G330.2+1.0

We report on the discovery of a pointlike source (CXOU J160103.1-513353) at the center of the Galactic supernova remnant (SNR) G330.2+1.0 with Chandra X-Ray Observatory. The X-ray spectrum fits a

A Neutron Star with a Massive Progenitor in Westerlund 1

We report the discovery of an X-ray pulsar in the young, massive Galactic star cluster Westerlund 1. We detected a coherent signal from the brightest X-ray source in the cluster, CXO

Chandra X-Ray Observations of 19 Millisecond Pulsars in the Globular Cluster 47 Tucanae

We present spectral and long-timescale variability analyses of Chandra X-Ray Observatory ACIS-S observations of the 19 millisecond pulsars (MSPs) with precisely known positions in the globular

The optical counterpart of the isolated neutron star RX J185635−3754

The extreme densities of neutron stars make them an ideal system in which to investigate the equation of state of nuclear matter; accurate determinations of neutron star masses and radii are crucial

Distances to Anomalous X-Ray Pulsars Using Red Clump Stars

We identify "red clump stars"—core helium-burning giants—among 2MASS stars and use them to measure the run of reddening with distance in the direction of each of the Galactic anomalous X-ray pulsars

The isolated neutron star X-ray pulsars RX J0420.0-5022 and RX J0806.4-4123: New X-ray and optical observations

We report on the analysis of new X-ray data obtained with XMM-Newton and Chandra from two ROSAT-discovered X-ray dim isolated neutron stars (XDINs). RX J0806.4−4123 was observed with XMM-Newton in

Discovery of a nearby isolated neutron star

OUR Galaxy should contain between a hundred million and a billion neutron stars; this follows from an extrapolation of pulsar birthrates1 and from the number of supernovae required to account for the

Toward a Mass and Radius Determination of the Nearby Isolated Neutron Star RX J185635–3754

We discuss efforts to determine the mass, radius, and surface composition of the nearby compact object RX J185635-3754 from its multiwavelength spectral energy distribution. We compute nonmagnetized

A Limit on the Number of Isolated Neutron Stars Detected in the ROSAT Bright Source Catalogue

The challenge in searching for non-radio-pulsing isolated neutron stars (INSs) is in excluding association with objects in the very large error boxes (~13'', 1 σ radius) typical of sources from the

X-ray observations of RX J0822-4300 and Puppis-A

Based on observations with the X-ray observatories Chandra and XMM-Newton we present results from a detailed spectro-imaging and timing analysis of the central compact X-ray source RX J0822-4300 in
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