Chandra observation of the interaction between the plasma nebula RCW89 and the pulsar jet of PSR B1509-58

Y. Yatsu, Jun Kataoka, N. Kawai, K. Tamura, W. Brinkmann

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We present a Chandra observation of the H II region RCW89. The nebula lies 10′ north from the central pulsar PSR B1509-58, and it has been suggested that the nebula is irradiated by the pulsar jet. We performed a spectral analysis of the seven brightest emitting regions aligned in a horse-shoe like shape, and found that the temperature of the knots increases along the horse-shoe in the clockwise direction, while, in contrast, the ionization parameter net decreases. This result implies that RCW89 was heated in sequence. We examined the energy budget assuming that RCW89 is powered by the pulsar jet. The rate of energy injection into RCW89 by the jet was estimated from the synchrotron radiation flux. We obtained a heating time-scale of 1400 yr, which is consistent with the pulsar characteristic age of 1700 yr. To explain the temperature gradient, we discuss the cooling process for plasma clouds in RCW89. We argue that the plasma clumps can be cooled down by the adiabatic expansion within 250 yr, and form the temperature gradient reflecting the sequential heating by the precessing pulsar jet.

Original languageEnglish
Pages (from-to)1066-1069
Number of pages4
JournalAdvances in Space Research
Volume35
Issue number6
DOIs
Publication statusPublished - 2005
Externally publishedYes

Fingerprint

Beam plasma interactions
nebulae
pulsars
Plasmas
plasma
shoes
horse
horses
temperature gradient
Thermal gradients
interactions
heating
temperature gradients
plasma clouds
Heating
energy budget
energy budgets
spectral analysis
H II regions
clumps

Keywords

  • Jets
  • Pulsars
  • Supernova remnants
  • Supernovae

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Chandra observation of the interaction between the plasma nebula RCW89 and the pulsar jet of PSR B1509-58. / Yatsu, Y.; Kataoka, Jun; Kawai, N.; Tamura, K.; Brinkmann, W.

In: Advances in Space Research, Vol. 35, No. 6, 2005, p. 1066-1069.

Research output: Contribution to journalArticle

Yatsu, Y. ; Kataoka, Jun ; Kawai, N. ; Tamura, K. ; Brinkmann, W. / Chandra observation of the interaction between the plasma nebula RCW89 and the pulsar jet of PSR B1509-58. In: Advances in Space Research. 2005 ; Vol. 35, No. 6. pp. 1066-1069.
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AU - Brinkmann, W.

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AB - We present a Chandra observation of the H II region RCW89. The nebula lies 10′ north from the central pulsar PSR B1509-58, and it has been suggested that the nebula is irradiated by the pulsar jet. We performed a spectral analysis of the seven brightest emitting regions aligned in a horse-shoe like shape, and found that the temperature of the knots increases along the horse-shoe in the clockwise direction, while, in contrast, the ionization parameter net decreases. This result implies that RCW89 was heated in sequence. We examined the energy budget assuming that RCW89 is powered by the pulsar jet. The rate of energy injection into RCW89 by the jet was estimated from the synchrotron radiation flux. We obtained a heating time-scale of 1400 yr, which is consistent with the pulsar characteristic age of 1700 yr. To explain the temperature gradient, we discuss the cooling process for plasma clouds in RCW89. We argue that the plasma clumps can be cooled down by the adiabatic expansion within 250 yr, and form the temperature gradient reflecting the sequential heating by the precessing pulsar jet.

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