2000ApJ...531L...9K


Query : 2000ApJ...531L...9K

2000ApJ...531L...9K - Astrophys. J., 531, L9-L12 (2000/March-1)

A Chandra high-resolution X-ray image of Centaurus A.

KRAFT R.P., FORMAN W., JONES C., KENTER A.T., MURRAY S.S., ALDCROFT T.L., ELVIS M.S., EVANS I.N., FABBIANO G., ISOBE T., JERIUS D., KAROVSKA M., KIM D.-W., PRESTWICH A.H., PRIMINI F.A., SCHWARTZ D.A., SCHREIER E.J. and VIKHLININ A.A.

Abstract (from CDS):

We present first results from a Chandra X-Ray Observatory observation of the radio galaxy Centaurus A with the High-Resolution Camera. All previously reported major sources of X-ray emission including the bright nucleus, the jet, individual point sources, and diffuse emission are resolved or detected. The spatial resolution of this observation is better than 1" in the center of the field of view and allows us to resolve X-ray features of this galaxy not previously seen. In particular, we resolve individual knots of emission in the inner jet and diffuse emission between the knots. All of the knots are diffuse at the 1" level, and several exhibit complex spatial structure. We find the nucleus to be extended by a few tenths of an arcsecond. Our image also suggests the presence of an X-ray counterjet. Weak X-ray emission from the southwest radio lobe is also seen, and we detect 63 pointlike galactic sources (probably X-ray binaries and supernova remnants) above a luminosity limit of ∼1.7x1037 ergs.s–1.

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Journal keyword(s): Galaxies: Active - Galaxies: Individual: Name: Centaurus A - Galaxies: Individual: NGC Number: NGC 5128 - Galaxies: Jets - X-Rays: Galaxies

Nomenclature: Fig.3: BGLO Cen A Knot A2/3, BGLO Cen A Knot AX.

CDS comments: p.12: Chandra observations, not yet registered at time of publication : CXOU (Chandra X-ray Observatory, Unregistred) acronym, not CXO.

Simbad objects: 17

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Number of rows : 17
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 CXOU J132507.7-430114 LXB 13 25 07.66 -43 01 16.0           ~ 8 0
2 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
3 CXOU J132532.4-425851 GlC 13 25 32.4107952984 -42 58 50.114330616 20.44 19.86 18.86 18.24 17.64 ~ 18 0
4 BGLO Cen A Knot B PoC 13 25 32.5 -43 00 36           ~ 19 0
5 BGLO Cen A Knot C PoC 13 25 33.46 -43 00 28.0           ~ 16 0
6 [KKF2001] J132533.95-425859.53 GlC 13 25 34.0914079936 -42 59 00.629564094 20.68 20.09 19.10 18.58 17.91 ~ 15 0
7 SN 1986G SN* 13 25 36.46 -43 01 53.6   12.45 11.44     SNIapec 422 1
8 [HGH92] G370 GlC 13 25 42.2393866248 -42 59 16.933062264 19.61 19.29 18.39 17.86 17.32 ~ 11 0
9 CXOU J132554.5-425924 GlC 13 25 54.5684562024 -42 59 25.329473880 18.92 18.29 17.22 16.62 15.95 ~ 49 0
10 RX J132558.5-430427 X 13 25 58.73 -43 04 30.7   19.26 19.02     ~ 7 0
11 V* AR Lac RS* 22 08 40.8182089680 +45 44 32.107863120 7.09 6.83 6.11     K0IVe+G5IV 745 0
12 BGLO Cen A Knot A2/3 PoG ~ ~           ~ 1 0
13 BGLO Cen A Knot AX PoG ~ ~           ~ 2 0
14 BGLO Cen A Knot G PoG ~ ~           ~ 8 0
15 BGLO Cen A Knot F PoG ~ ~           ~ 13 0
16 BGLO Cen A Knot E PoG ~ ~           ~ 12 0
17 NAME Cen A Jet PoG ~ ~           ~ 51 0

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