2010ApJ...716..663R


Query : 2010ApJ...716..663R

2010ApJ...716..663R - Astrophys. J., 716, 663-670 (2010/June-2)

Discovery of a highly energetic pulsar associated with IGR J14003-6326 in the young uncataloged galactic supernova remnant G310.6-1.6.

RENAUD M., MARANDON V., GOTTHELF E.V., RODRIGUEZ J., TERRIER R., MATTANA F., LEBRUN F., TOMSICK J.A. and MANCHESTER R.N.

Abstract (from CDS):

We report the discovery of 31.18 ms pulsations from the INTEGRAL source IGR J14003-6326 using the Rossi X-ray Timing Explorer (RXTE). This pulsar is most likely associated with the bright Chandra X-ray point source lying at the center of G310.6-1.6, a previously unrecognized Galactic composite supernova remnant (SNR) with a bright central non-thermal radio and X-ray nebula, taken to be the pulsar wind nebula (PWN). PSR J1400-6325 is amongst the most energetic rotation-powered pulsars in the Galaxy, with a spin-down luminosity of {dot}E = 5.1 ×10^37 erg/s. In the rotating dipole model, the surface dipole magnetic field strength is Bs= 1.1 x 1012 G and the characteristic age τ_ c ≡P/2{dot}P = 12.7 kyr. The high spin-down power is consistent with the hard spectral indices of the pulsar and the nebula of 1.22±0.15 and 1.83±0.08, respectively, and a 2-10 keV flux ratio FPWN/FPSR∼ 8. Follow-up Parkes observations resulted in the detection of radio emission at 10 and 20 cm from PSR J1400-6325 at a dispersion measure of ∼560/cm3 pc, which implies a relatively large distance of 10±3 kpc. However, the resulting location off the Galactic plane of ∼280 pc would be much larger than the typical thickness of the molecular disk, and we argue that G310.6-1.6 lies at a distance of ∼7 kpc. There is no gamma-ray counterpart to the nebula or pulsar in the Fermi data published so far. A multi-wavelength study of this new composite SNR, from radio to very high-energy gamma rays, suggests a young (≲103 yr) system formed by a sub-energetic (≲1050 erg), low ejecta mass (Mej∼ 3 M) supernova explosion that occurred in a low-density environment (n0∼ 0.01/cm3).

Abstract Copyright:

Journal keyword(s): gamma rays: general - pulsars: individual: PSR J1400-6325 - ISM: supernova remnants - X-rays: individual (IGR J14003-6326, opbjS{SNR G310.6-01.6}{G310.6-1.6})

Simbad objects: 18

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Number of rows : 18
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* CM Tau Psr 05 34 31.93830 +22 00 52.1758           ~ 4908 1
2 M 1 SNR 05 34 31.94 +22 00 52.2           ~ 5765 4
3 NAME Crux-Scutum Spiral Arm reg 12 30 -60.0           ~ 288 0
4 [KRL2007b] 149 Psr 14 00 20.3 -63 26 09           ~ 21 1
5 MGPS J140045-632542 Rad 14 00 45.17 -63 25 42.2           ~ 1 0
6 PMN J1400-6325 Rad 14 00 45.2 -63 25 43           ~ 1 0
7 SNR G310.6-01.6 SNR 14 00 45.69 -63 25 42.6           ~ 28 1
8 PSR B1358-63 Psr 14 01 52.5900 -63 57 45.400           ~ 66 0
9 PSR J1403-6310 Psr 14 03 14.0 -63 10 27           ~ 5 0
10 NAME Circinus Region reg 14 49 -65.3           ~ 30 0
11 SNR G000.9+00.1 SNR 17 47.3 -28 09           ~ 175 1
12 SNR G001.9+00.3 SNR 17 48 46.10 -27 09 50.9           ~ 173 1
13 NAME AGPS 273.4-17.8 SNR 18 13 35.05 -17 49 58.1           ~ 97 2
14 SNR G012.8-00.0 SNR 18 13.6 -17 49           ~ 50 0
15 SNR G021.5-00.9 SNR 18 33 33.612 -10 34 07.69           ~ 407 1
16 SNR G029.7-00.2 SNR 18 46 25.5 -02 59 14           ~ 309 2
17 NAME Cas A SNR 23 23 24.000 +58 48 54.00     14.30     ~ 2514 1
18 NAME Galactic Ridge ? ~ ~           ~ 451 1

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2021.07.31-17:15:49

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