SIMBAD references

2011ApJ...743...74W - Astrophys. J., 743, 74 (2011/December-2)

The identification of the X-ray counterpart to PSR J2021+4026.

WEISSKOPF M.C., ROMANI R.W., RAZZANO M., BELFIORE A., SAZ PARKINSON P., RAY P.S., KERR M., HARDING A., SWARTZ D.A., CARRAMINANA A., ZIEGLER M., BECKER W., DE LUCA A., DORMODY M., THOMPSON D.J., KANBACH G., ELSNER R.F., O'DELL S.L. and TENNANT A.F.

Abstract (from CDS):

We report the probable identification of the X-ray counterpart to the γ-ray pulsar PSR J2021+4026 using imaging with the Chandra X-ray Observatory Advanced CCD Imaging Spectrometer and timing analysis with the Fermi satellite. Given the statistical and systematic errors, the positions determined by both satellites are coincident. The X-ray source position is R.A. 20h21m30.s733, decl. +40°26'46".04 (J2000) with an estimated uncertainty of 1".3 combined statistical and systematic error. Moreover, both the X-ray to γ-ray and the X-ray to optical flux ratios are sensible assuming a neutron star origin for the X-ray flux. The X-ray source has no cataloged infrared-to-visible counterpart and, through new observations, we set upper limits to its optical emission of i' > 23.0 mag and r' > 25.2 mag. The source exhibits an X-ray spectrum with most likely both a power law and a thermal component. We also report on the X-ray and visible light properties of the 43 other sources detected in our Chandra observation.

Abstract Copyright:

Journal keyword(s): pulsars: individual: PSR J2021+4026 - supernovae: individual: SNR 78.2+2.1 - X-rays: general

Nomenclature: Table 1: [WRR2011] NN (Nos 1-44).

Simbad objects: 55

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2021.12.02-20:00:07

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