Imaging of the supernova remnant cassiopeia a with the Multiband Imaging Photometer For Spitzer (MIPS)

D. C. Hines; G. H. Rieke; K. D. Gordon; J. Rho; K. A. Misselt; C. E. Woodward; M. W. Werner; O. Krause; W. B. Latter; C. W. Engelbracht; E. Egami; D. M. Kelly; J. Muzerolle; J. A. Stansberry; K. Y.L. Su; J. E. Morrison; E. T. Young; A. Noriega-Crespo; D. L. Padgett; R. D. Gehrz; E. Polomski; J. W. Beeman; E. E. Haller

doi:10.1086/422583

Imaging of the supernova remnant cassiopeia a with the Multiband Imaging Photometer For Spitzer (MIPS)

D. C. Hines, G. H. Rieke, K. D. Gordon, J. Rho, K. A. Misselt, C. E. Woodward, M. W. Werner, O. Krause, W. B. Latter, C. W. Engelbracht, E. Egami, D. M. Kelly, J. Muzerolle, J. A. Stansberry, K. Y.L. Su, J. E. Morrison, E. T. Young, A. Noriega-Crespo, D. L. Padgett, R. D. GehrzE. Polomski, J. W. Beeman, E. E. Haller

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Abstract

We present new images of the supernova remnant (SNR) Cas A observed in the 24 and 70 μm bands of the Spitzer Space Telescope (Spitzer). The IR emission correlates well with the Si X-ray and optical [S II] emission but poorly with either the synchrotron-dominated radio structure or the continuum X-ray emission. The IR is therefore dominated by thermal emission from dust within the SNR and associated with emission-line gas inside the reverse shock region, confirming earlier IRAS and Infrared Space Observatory results. Supplemented by new photometric measurements from archived Midcourse Space Experiment images, we suggest stochastic heating to model the overall mid- to far-IR spectral energy distribution. The 24 and 70 μm images also reveal a counterjet to the well-known northeast jet feature imaged previously at X-ray, optical, and radio wavelengths. This IR counterjet corresponds well with (optical) fast-moving knots confirming its outflow nature. The opposing jetlike features define a symmetry axis that bisects the SNR and suggest that the supernova explosion was axisymmetric. The IR images also show a region in which the SNR forward shock appears to be propagating into a ∼650 M_⊙ molecular cloud. The new images also show other details of the surrounding ISM structure, including two groups of knots extending ∼6′-12′ on either side of the SNR.

Original language	English (US)
Pages (from-to)	290-295
Number of pages	6
Journal	Astrophysical Journal, Supplement Series
Volume	154
Issue number	1
DOIs	https://doi.org/10.1086/422583
State	Published - Sep 2004

Keywords

ISM: individual (Cassiopeia A)
Infrared: ISM
Supernova remnants

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/422583

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Hines, D. C., Rieke, G. H., Gordon, K. D., Rho, J., Misselt, K. A., Woodward, C. E., Werner, M. W., Krause, O., Latter, W. B., Engelbracht, C. W., Egami, E., Kelly, D. M., Muzerolle, J., Stansberry, J. A., Su, K. Y. L., Morrison, J. E., Young, E. T., Noriega-Crespo, A., Padgett, D. L., ... Haller, E. E. (2004). Imaging of the supernova remnant cassiopeia a with the Multiband Imaging Photometer For Spitzer (MIPS). Astrophysical Journal, Supplement Series, 154(1), 290-295. https://doi.org/10.1086/422583

Hines, DC, Rieke, GH, Gordon, KD, Rho, J, Misselt, KA, Woodward, CE, Werner, MW, Krause, O, Latter, WB, Engelbracht, CW, Egami, E, Kelly, DM, Muzerolle, J, Stansberry, JA, Su, KYL, Morrison, JE, Young, ET, Noriega-Crespo, A, Padgett, DL, Gehrz, RD, Polomski, E, Beeman, JW & Haller, EE 2004, 'Imaging of the supernova remnant cassiopeia a with the Multiband Imaging Photometer For Spitzer (MIPS)', Astrophysical Journal, Supplement Series, vol. 154, no. 1, pp. 290-295. https://doi.org/10.1086/422583

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title = "Imaging of the supernova remnant cassiopeia a with the Multiband Imaging Photometer For Spitzer (MIPS)",

abstract = "We present new images of the supernova remnant (SNR) Cas A observed in the 24 and 70 μm bands of the Spitzer Space Telescope (Spitzer). The IR emission correlates well with the Si X-ray and optical [S II] emission but poorly with either the synchrotron-dominated radio structure or the continuum X-ray emission. The IR is therefore dominated by thermal emission from dust within the SNR and associated with emission-line gas inside the reverse shock region, confirming earlier IRAS and Infrared Space Observatory results. Supplemented by new photometric measurements from archived Midcourse Space Experiment images, we suggest stochastic heating to model the overall mid- to far-IR spectral energy distribution. The 24 and 70 μm images also reveal a counterjet to the well-known northeast jet feature imaged previously at X-ray, optical, and radio wavelengths. This IR counterjet corresponds well with (optical) fast-moving knots confirming its outflow nature. The opposing jetlike features define a symmetry axis that bisects the SNR and suggest that the supernova explosion was axisymmetric. The IR images also show a region in which the SNR forward shock appears to be propagating into a ∼650 M⊙ molecular cloud. The new images also show other details of the surrounding ISM structure, including two groups of knots extending ∼6′-12′ on either side of the SNR.",

keywords = "ISM: individual (Cassiopeia A), Infrared: ISM, Supernova remnants",

author = "Hines, {D. C.} and Rieke, {G. H.} and Gordon, {K. D.} and J. Rho and Misselt, {K. A.} and Woodward, {C. E.} and Werner, {M. W.} and O. Krause and Latter, {W. B.} and Engelbracht, {C. W.} and E. Egami and Kelly, {D. M.} and J. Muzerolle and Stansberry, {J. A.} and Su, {K. Y.L.} and Morrison, {J. E.} and Young, {E. T.} and A. Noriega-Crespo and Padgett, {D. L.} and Gehrz, {R. D.} and E. Polomski and Beeman, {J. W.} and Haller, {E. E.}",

year = "2004",

month = sep,

doi = "10.1086/422583",

language = "English (US)",

volume = "154",

pages = "290--295",

journal = "Astrophysical Journal, Supplement Series",

issn = "0067-0049",

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TY - JOUR

T1 - Imaging of the supernova remnant cassiopeia a with the Multiband Imaging Photometer For Spitzer (MIPS)

AU - Hines, D. C.

AU - Rieke, G. H.

AU - Gordon, K. D.

AU - Rho, J.

AU - Misselt, K. A.

AU - Woodward, C. E.

AU - Werner, M. W.

AU - Krause, O.

AU - Latter, W. B.

AU - Engelbracht, C. W.

AU - Egami, E.

AU - Kelly, D. M.

AU - Muzerolle, J.

AU - Stansberry, J. A.

AU - Su, K. Y.L.

AU - Morrison, J. E.

AU - Young, E. T.

AU - Noriega-Crespo, A.

AU - Padgett, D. L.

AU - Gehrz, R. D.

AU - Polomski, E.

AU - Beeman, J. W.

AU - Haller, E. E.

PY - 2004/9

Y1 - 2004/9

N2 - We present new images of the supernova remnant (SNR) Cas A observed in the 24 and 70 μm bands of the Spitzer Space Telescope (Spitzer). The IR emission correlates well with the Si X-ray and optical [S II] emission but poorly with either the synchrotron-dominated radio structure or the continuum X-ray emission. The IR is therefore dominated by thermal emission from dust within the SNR and associated with emission-line gas inside the reverse shock region, confirming earlier IRAS and Infrared Space Observatory results. Supplemented by new photometric measurements from archived Midcourse Space Experiment images, we suggest stochastic heating to model the overall mid- to far-IR spectral energy distribution. The 24 and 70 μm images also reveal a counterjet to the well-known northeast jet feature imaged previously at X-ray, optical, and radio wavelengths. This IR counterjet corresponds well with (optical) fast-moving knots confirming its outflow nature. The opposing jetlike features define a symmetry axis that bisects the SNR and suggest that the supernova explosion was axisymmetric. The IR images also show a region in which the SNR forward shock appears to be propagating into a ∼650 M⊙ molecular cloud. The new images also show other details of the surrounding ISM structure, including two groups of knots extending ∼6′-12′ on either side of the SNR.

AB - We present new images of the supernova remnant (SNR) Cas A observed in the 24 and 70 μm bands of the Spitzer Space Telescope (Spitzer). The IR emission correlates well with the Si X-ray and optical [S II] emission but poorly with either the synchrotron-dominated radio structure or the continuum X-ray emission. The IR is therefore dominated by thermal emission from dust within the SNR and associated with emission-line gas inside the reverse shock region, confirming earlier IRAS and Infrared Space Observatory results. Supplemented by new photometric measurements from archived Midcourse Space Experiment images, we suggest stochastic heating to model the overall mid- to far-IR spectral energy distribution. The 24 and 70 μm images also reveal a counterjet to the well-known northeast jet feature imaged previously at X-ray, optical, and radio wavelengths. This IR counterjet corresponds well with (optical) fast-moving knots confirming its outflow nature. The opposing jetlike features define a symmetry axis that bisects the SNR and suggest that the supernova explosion was axisymmetric. The IR images also show a region in which the SNR forward shock appears to be propagating into a ∼650 M⊙ molecular cloud. The new images also show other details of the surrounding ISM structure, including two groups of knots extending ∼6′-12′ on either side of the SNR.

KW - ISM: individual (Cassiopeia A)

KW - Infrared: ISM

KW - Supernova remnants

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UR - http://www.scopus.com/inward/citedby.url?scp=5644232311&partnerID=8YFLogxK

U2 - 10.1086/422583

DO - 10.1086/422583

M3 - Article

AN - SCOPUS:5644232311

SN - 0067-0049

VL - 154

SP - 290

EP - 295

JO - Astrophysical Journal, Supplement Series

JF - Astrophysical Journal, Supplement Series

IS - 1

ER -

Imaging of the supernova remnant cassiopeia a with the Multiband Imaging Photometer For Spitzer (MIPS)

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