Neutron Star Interior Composition Explorer X-Ray Timing of the Radio and γ-Ray Quiet Pulsars PSR J1412+7922 and PSR J1849-0001

@article{Bogdanov2019NeutronSI,
  title={Neutron Star Interior Composition Explorer X-Ray Timing of the Radio and $\gamma$-Ray Quiet Pulsars PSR J1412+7922 and PSR J1849-0001},
  author={Slavko Bogdanov and Wynn C. G. Ho and Teruaki Enoto and Sebastien Guillot and Alice K. Harding and Gaurava K. Jaisawal and Christian Malacaria and Sridhar s. Manthripragada and Zaven Arzoumanian and Keith C. Gendreau},
  journal={The Astrophysical Journal},
  year={2019},
  volume={877}
}
We present new timing and spectral analyses of PSR J1412+7922 (Calvera) and PSR J1849−0001, which are only seen as pulsars in X-rays, based on observations conducted with the Neutron Star Interior Composition Explorer. We obtain updated and substantially improved pulse ephemerides compared to previous X-ray studies, as well as spectra that can be well fit by simple blackbodies and/or a power law. Our refined timing measurements enable deeper searches for pulsations at other wavelengths and… 

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References

SHOWING 1-10 OF 26 REFERENCES

X-RAY MEASUREMENT OF THE SPIN-DOWN OF CALVERA: A RADIO- AND GAMMA-RAY-QUIET PULSAR

We measure spin-down of the 59 ms X-ray pulsar Calvera by comparing the XMM-Newton discovery data from 2009 with new Chandra timing observations taken in 2013. Its period derivative is , which

DISCOVERY OF AN ENERGETIC 38.5 ms PULSAR POWERING THE GAMMA-RAY SOURCE IGR J18490−0000/HESS J1849−000

We report the discovery of a 38.5 ms X-ray pulsar in observations of the soft γ-ray source IGR J18490−0000 with the Rossi X-ray Timing Explorer (RXTE). PSR J1849−0001 is spinning down rapidly with

The soft γ-ray pulsar population: a high-energy overview

At high-energy gamma-rays (>100 MeV) the Large Area Telescope (LAT) on the Fermi satellite already detected more than 145 rotation-powered pulsars (RPPs), while the number of pulsars seen at soft

THE SECOND FERMI LARGE AREA TELESCOPE CATALOG OF GAMMA-RAY PULSARS

This catalog summarizes 117 high-confidence ⩾0.1 GeV gamma-ray pulsar detections using three years of data acquired by the Large Area Telescope (LAT) on the Fermi satellite. Half are neutron stars

DEEP OPTICAL OBSERVATIONS OF UNUSUAL NEUTRON STAR CALVERA WITH THE GTC

Calvera is an unusual, isolated neutron star with a pure thermal X-ray spectrum typical of central compact objects in supernova remnants. On the other hand, its rotation period and spin-down rate are

Gravitational waves from known pulsars: Results from the initial detector era

We present the results of searches for gravitational waves from a large selection of pulsars using data from the most recent science runs (S6, VSR2 and VSR4) of the initial generation of

Gravitational waves from single neutron stars: an advanced detector era survey

With the doors beginning to swing open on the new gravitational wave astronomy, this review provides an up-to-date survey of the most important physical mechanisms that could lead to emission of

A strong upper limit on the pulsed radio luminosity of the compact object 1RXS J141256.0+792204

Context: The ROSAT X-ray source 1RXS J141256.0+792204 has recently been identified as a likely compact object whose properties suggest it could be a very nearby radio millisecond pulsar at d = 80-260

Discovery of 59 ms pulsations from 1RXS J141256.0+792204 (Calvera)

We report on the results of a multi-wavelength study of the compact object candidate 1RXS J141256.0+792204 (Calvera). Calvera was observed in the X-rays with XMM-Newton/EPIC twice for a total

THE SPIN-DOWN OF PSR J0821–4300 AND PSR J1210–5226: CONFIRMATION OF CENTRAL COMPACT OBJECTS AS ANTI-MAGNETARS

Using XMM-Newton and Chandra, we measure period derivatives for the second and third known pulsars in the class of central compact objects (CCOs) in supernova remnants, proving that these young