The Knotty Question of the Jet of PKS B1421-490

JM Gelbord; HL Marshall; DM Worrall; M Birkinshaw; JEJ Lovell; R Ojha; L Godfrey; DA Schwartz; ES Perlman; M Georganopoulos; DW Murphy; DL Jauncey

The Knotty Question of the Jet of PKS B1421-490

JM Gelbord, HL Marshall, DM Worrall, M Birkinshaw, JEJ Lovell, R Ojha, L Godfrey, DA Schwartz, ES Perlman, M Georganopoulos, DW Murphy, DL Jauncey

School of Physics

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Abstract

We report the discovery of unusually strong optical and X-ray emission associated with a knot in the radio jet of PKS B1421-490. The knot is the brightest feature observed beyond the radio band, with knot/core flux ratios 300 and 3.7 at optical and X-ray frequencies, respectively. We interpret the extreme optical output of the knot as synchrotron emission. The nature of the X-ray emission is unclear. We consider a second synchrotron component, inverse Compton emission from a relativistic, decelerating jet, and the possibility that this feature is a chance superposition of an unusual BL Lac object.

Translated title of the contribution	The Knotty Question of the Jet of PKS B1421-490
Original language	English
Pages (from-to)	L75 - L78
Number of pages	4
Journal	Astrophysical Journal
Volume	632
Publication status	Published - 2005

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Publisher: University of Chicago Press

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title = "The Knotty Question of the Jet of PKS B1421-490",

abstract = "We report the discovery of unusually strong optical and X-ray emission associated with a knot in the radio jet of PKS B1421-490. The knot is the brightest feature observed beyond the radio band, with knot/core flux ratios 300 and 3.7 at optical and X-ray frequencies, respectively. We interpret the extreme optical output of the knot as synchrotron emission. The nature of the X-ray emission is unclear. We consider a second synchrotron component, inverse Compton emission from a relativistic, decelerating jet, and the possibility that this feature is a chance superposition of an unusual BL Lac object.",

author = "JM Gelbord and HL Marshall and DM Worrall and M Birkinshaw and JEJ Lovell and R Ojha and L Godfrey and DA Schwartz and ES Perlman and M Georganopoulos and DW Murphy and DL Jauncey",

note = "Publisher: University of Chicago Press",

year = "2005",

language = "English",

volume = "632",

pages = "L75 -- L78",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

}

TY - JOUR

T1 - The Knotty Question of the Jet of PKS B1421-490

AU - Gelbord, JM

AU - Marshall, HL

AU - Worrall, DM

AU - Birkinshaw, M

AU - Lovell, JEJ

AU - Ojha, R

AU - Godfrey, L

AU - Schwartz, DA

AU - Perlman, ES

AU - Georganopoulos, M

AU - Murphy, DW

AU - Jauncey, DL

N1 - Publisher: University of Chicago Press

PY - 2005

Y1 - 2005

N2 - We report the discovery of unusually strong optical and X-ray emission associated with a knot in the radio jet of PKS B1421-490. The knot is the brightest feature observed beyond the radio band, with knot/core flux ratios 300 and 3.7 at optical and X-ray frequencies, respectively. We interpret the extreme optical output of the knot as synchrotron emission. The nature of the X-ray emission is unclear. We consider a second synchrotron component, inverse Compton emission from a relativistic, decelerating jet, and the possibility that this feature is a chance superposition of an unusual BL Lac object.

AB - We report the discovery of unusually strong optical and X-ray emission associated with a knot in the radio jet of PKS B1421-490. The knot is the brightest feature observed beyond the radio band, with knot/core flux ratios 300 and 3.7 at optical and X-ray frequencies, respectively. We interpret the extreme optical output of the knot as synchrotron emission. The nature of the X-ray emission is unclear. We consider a second synchrotron component, inverse Compton emission from a relativistic, decelerating jet, and the possibility that this feature is a chance superposition of an unusual BL Lac object.

M3 - Article (Academic Journal)

VL - 632

SP - L75 - L78

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

ER -

The Knotty Question of the Jet of PKS B1421-490

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