2011ApJ...743...74W

Query : 2011ApJ...743...74W

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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Number of rows : 55
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 SNR G119.5+10.2 SNR 00 06.6 +72 47           ~ 268 1
2 PSR J0633+1746 Psr 06 33 54.153 +17 46 12.91           ~ 1308 0
3 PSR B0656+14 Psr 06 59 48.18800 +14 14 19.2000   24.85 24.90     ~ 943 1
4 PSR B1055-52 Psr 10 57 59.0450 -52 26 56.330           ~ 757 0
5 NAME Cyg Arm PoG 20 02 +40.0           ~ 163 0
6 NAME gam Cyg SNR SNR 20 20 17.100 +40 26 09.00           ~ 247 2
7 2MASS J20210903+4027032 * 20 21 09.0370004256 +40 27 03.343095756           ~ 1 0
8 [WRR2011] 2 X 20 21 10.472 +40 28 44.47           ~ 1 0
9 [WRR2011] 3 * 20 21 11.4272848944 +40 28 04.779422724     13.92     K5 3 0
10 [WRR2011] 4 * 20 21 12.7081507392 +40 28 32.198893428           ~ 1 0
11 2MASS J20211332+4026029 * 20 21 13.3247645616 +40 26 02.962000968           ~ 1 0
12 2MASS J20211359+4025558 * 20 21 13.5975208680 +40 25 55.783559856           ~ 1 0
13 [WRR2011] 7 X 20 21 13.665 +40 28 59.60           ~ 1 0
14 [WRR2011] 8 * 20 21 14.3484661296 +40 25 20.380135764           ~ 1 0
15 [WRR2011] 9 * 20 21 16.9658886288 +40 25 17.207033880           ~ 1 0
16 2MASS J20211954+4025325 * 20 21 19.5443719416 +40 25 32.643925968           ~ 1 0
17 [WRR2011] 11 * 20 21 20.7043952616 +40 24 01.893646404           ~ 1 0
18 [WRR2011] 12 X 20 21 21.132 +40 27 46.35           ~ 1 0
19 [WRR2011] 13 X 20 21 22.317 +40 28 50.75           ~ 1 0
20 [WRR2011] 14 X 20 21 25.164 +40 28 13.34           ~ 1 0
21 2MASS J20212576+4027440 * 20 21 25.7643260544 +40 27 44.167374324           ~ 1 0
22 [WRR2011] 16 X 20 21 26.087 +40 23 05.22           ~ 1 0
23 [WRR2011] 17 X 20 21 28.6791603672 +40 24 15.604982136           ~ 1 0
24 [WRR2011] 18 * 20 21 29.7789452520 +40 24 55.565413596           ~ 1 0
25 GRO J2019+40 gam 20 21.5 +40 26           ~ 131 1
26 [WRR2011] 19 X 20 21 30.342 +40 29 48.31           ~ 1 0
27 PSR J2021+4026 Psr 20 21 30.496 +40 26 53.56           ~ 300 2
28 USNO-B1.0 1304-00388702 X 20 21 30.655 +40 26 46.39           ~ 14 1
29 [WRR2011] 20 X 20 21 30.733 +40 26 46.04           ~ 2 1
30 [WRR2011] 21 X 20 21 30.801 +40 25 16.38           ~ 1 0
31 2MASS J20213142+4022564 * 20 21 31.4172425784 +40 22 56.466584904           ~ 2 0
32 [WRR2011] 23 X 20 21 31.889 +40 24 25.51           ~ 1 0
33 [WRR2011] 24 X 20 21 32.659 +40 28 21.38           ~ 1 0
34 [WRR2011] 25 X 20 21 32.905 +40 24 20.88           ~ 1 0
35 [WRR2011] 26 X 20 21 33.031 +40 23 00.62           ~ 1 0
36 [WRR2011] 27 X 20 21 33.650 +40 29 08.97           ~ 1 0
37 [WRR2011] 28 X 20 21 34.0929684192 +40 25 26.451371568           ~ 1 0
38 [WRR2011] 29 X 20 21 34.559 +40 23 19.16           ~ 1 0
39 [WRR2011] 30 X 20 21 35.2827359520 +40 28 35.770118484           ~ 1 0
40 [WRR2011] 31 X 20 21 35.485 +40 28 13.57           ~ 1 0
41 V* V405 Cyg AB* 20 21 36.2229921696 +40 26 49.749871920   9.802 8.50     M5III 20 0
42 RX J202137.6+402959 * 20 21 37.5734689848 +40 29 58.028146116           ~ 2 0
43 [WRR2011] 33 X 20 21 38.401 +40 29 35.49           ~ 1 0
44 2MASS J20213842+4024426 * 20 21 38.4273467232 +40 24 42.725162844           ~ 3 0
45 [WRR2011] 35 X 20 21 38.579 +40 24 14.88           ~ 1 0
46 [WRR2011] 36 X 20 21 39.214 +40 27 09.90           ~ 1 0
47 [WRR2011] 37 X 20 21 40.0683953976 +40 24 09.520431228           ~ 1 0
48 2MASS J20214311+4023540 * 20 21 43.1201393616 +40 23 53.937841308           ~ 1 0
49 2MASS J20214453+4029334 * 20 21 44.5343691120 +40 29 33.534459924           ~ 1 0
50 [WRR2011] 40 X 20 21 47.294 +40 24 54.84           ~ 1 0
51 [WRR2011] 41 * 20 21 47.6632619256 +40 26 57.807335976           ~ 1 0
52 2MASS J20215255+4025081 * 20 21 52.5550262928 +40 25 08.033044836           ~ 1 0
53 [WRR2011] 43 X 20 21 57.240 +40 26 23.10           ~ 1 0
54 [WRR2011] 44 X 20 21 57.751 +40 26 46.78           ~ 1 0
55 * gam Cyg V* 20 22 13.7018357 +40 15 24.044963 3.44 2.90 2.23 1.74 1.40 F8Ib 607 0

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