2008ApJ...673L.135W

Query : 2008ApJ...673L.135W

2008ApJ...673L.135W - Astrophys. J., 673, L135-L138 (2008/February-1)

Where Centaurus A gets its X-ray knottiness.

WORRALL D.M., BIRKINSHAW M., KRAFT R.P., SIVAKOFF G.R., JORDAN A., HARDCASTLE M.J., BRASSINGTON N.J., CROSTON J.H., EVANS D.A., FORMAN W.R., HARRIS W.E., JONES C., JUETT A.M., MURRAY S.S., NULSEN P.E.J., RAYCHAUDHURY S., SARAZIN C.L. and WOODLEY K.A.

Abstract (from CDS):

We report an X-ray spectral study of the transverse structure of the Centaurus A jet using new data from the Chandra Cen A Very Large Project. We find that the spectrum steepens with increasing distance from the jet axis, and that this steepening can be attributed to a change in the average spectrum of the knotty emission. Such a trend is unexpected if the knots are predominantly a surface feature residing in a shear layer between faster and slower flows. We suggest that the spectral steepening of the knot emission as a function of distance from the jet axis is due to knot migration, implying a component of transverse motion of knots within the flow.

Abstract Copyright: ∼

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

Simbad objects: 6

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Number of rows : 6
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 NGC 315 LIN 00 57 48.88334410 +30 21 08.8119345 12.80 12.20 11.16 11.26   ~ 869 2
2 NGC 383 AGN 01 07 24.9647814840 +32 24 45.132586200   13.6 12.14     ~ 821 3
3 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
4 NAME Cen A Core PoG 13 25 27.6039817176 -43 01 09.493008456           ~ 39 0
5 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
6 NAME Cen A Jet PoG ~ ~           ~ 51 0

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