2003ApJ...582..783H


Query : 2003ApJ...582..783H

2003ApJ...582..783H - Astrophys. J., 582, 783-792 (2003/January-2)

Chandra X-ray imaging spectroscopy of the young supernova remnant Kesteven 75.

HELFAND D.J., COLLINS B.F. and GOTTHELF E.V.

Abstract (from CDS):

We present a spatially resolved spectroscopic analysis of the young Galactic supernova remnant Kes 75 (SNR G29.7-0.3) using the Chandra X-Ray Observatory. Kes 75 is one of an increasing number of examples of a shell-type remnant with a central pulsar powering an extended radio/X-ray core. We are able to pinpoint the location of the recently discovered pulsar, PSR J1846-0258, and confirm that X-rays from the remnant's core component are consistent with nonthermal power-law emission from both the pulsar and its surrounding wind nebula. We find that the spectrum of the pulsar is significantly harder than that of the wind nebula. Fainter diffuse emission is detected from throughout the volume delineated by the radio shell with a surface brightness distribution strikingly similar to the radio emission. The presence of strong lines attributable to ionized Mg, Si, and S indicates that at least some of this emission is thermal in nature. However, when we characterize the emission using a model of an underionized plasma with nonsolar elemental abundances, we find that we require an additional diffuse high-energy component. We show that a significant fraction of this emission is an X-ray scattering halo from the pulsar and its wind nebula, although a nonthermal contribution from electrons accelerated in the shock cannot be excluded.

Abstract Copyright:

Journal keyword(s): Stars: Pulsars: Individual: Alphanumeric: PSR J1846-0258 - Stars: Individual: Alphanumeric: PSR J1846-02558 (read: PSR J1846-0258) - Stars: Neutron - ISM: Supernova Remnants - Stars: Supernovae: Individual: Alphanumeric: G29.7-0.3 - X-Rays: General

CDS comments: Parag. 4.2 : J2229+6122 = 3EG J2229+6122, PSR = PSR J2229+6114

Simbad objects: 16

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Number of rows : 16
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 SNR G130.7+03.1 SNR 02 05 37.0 +64 49 42           ~ 591 4
2 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 16153 1
3 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5060 0
4 M 1 SNR 05 34 32 +22 00.8           ~ 5938 1
5 PSR B0540-69 Psr 05 40 10.84 -69 19 54.2           ~ 849 3
6 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2207 1
7 ESO 134-11 HII 14 40 29 -62 38.7           ~ 540 1
8 SNR G315.0-02.3 SNR 14 43 00 -62 30.0           ~ 357 1
9 SNR G347.3-00.5 SNR 17 12 27 -39 41.2     12.27     ~ 680 1
10 SNR G011.2-00.3 SNR 18 11 28.9 -19 25 29           ~ 270 1
11 PSR J1811-1926 Psr 18 11 29.15 -19 25 25.4           ~ 117 1
12 SNR G011.2-01.1 SNR 18 14.0 -19 46           ~ 63 1
13 V* V5512 Sgr LXB 18 14 31.55 -17 09 26.7     12.73     K5III 371 0
14 SNR G021.5-00.9 SNR 18 33 33.612 -10 34 07.69           ~ 422 1
15 PSR J1846-0258 Psr 18 46 24.94 -02 58 30.1           ~ 328 2
16 SNR G029.7-00.2 SNR 18 46 25.5 -02 59 14           ~ 321 2

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2022.08.10-01:05:00

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