The expansion of SN2008iz in M82

A Brunthaler; I Marti-Vidal; K M Menten; M J Reid; C Henkel; G C Bower; H D E Falcke; R J Beswick; T W B Muxlow; D Fenech

The expansion of SN2008iz in M82

A Brunthaler, I Marti-Vidal, K M Menten, M J Reid, C Henkel, G C Bower, H D E Falcke, R J Beswick, T W B Muxlow, D Fenech

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We present first results from the ongoing radio monitoring of SN 2008iz in M82. The VLBI images reveal a shell-like structure with circular symmetry, which expands in a self-similar way. There is strong evidence of a compact component with a steep spectrum at the center of the shell. The expansion curve obtained from our VLBI observations is marginally decelerated (m = 0.89) and can be modeled simultaneously with the available radio light curves. While the results of this simultaneous fitting are not conclusive (i.e. different combinations of values of the magnetic field, CSM density profile, and electron energy distribution, provide fits to the available data with similar quality), additional observations should allow a more robust and detailed modeling.

Original language	English
Title of host publication	host publication
Publication status	Published - 2010
Event	10th European VLBI Network Symposium and EVN Users Meeting: VLBI and the new generation of radio arrays - Manchester, UK Duration: 22 Nov 2010 → 24 Nov 2011 http://adsabs.harvard.edu/abs/2010evn..confE..14G

Conference

Conference	10th European VLBI Network Symposium and EVN Users Meeting: VLBI and the new generation of radio arrays
City	Manchester, UK
Period	22/11/10 → 24/11/11
Internet address	http://adsabs.harvard.edu/abs/2010evn..confE..14G

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@inproceedings{eefdb47e124e471ca17fe978ed439275,

title = "The expansion of SN2008iz in M82",

abstract = "We present first results from the ongoing radio monitoring of SN 2008iz in M82. The VLBI images reveal a shell-like structure with circular symmetry, which expands in a self-similar way. There is strong evidence of a compact component with a steep spectrum at the center of the shell. The expansion curve obtained from our VLBI observations is marginally decelerated (m = 0.89) and can be modeled simultaneously with the available radio light curves. While the results of this simultaneous fitting are not conclusive (i.e. different combinations of values of the magnetic field, CSM density profile, and electron energy distribution, provide fits to the available data with similar quality), additional observations should allow a more robust and detailed modeling.",

author = "A Brunthaler and I Marti-Vidal and Menten, {K M} and Reid, {M J} and C Henkel and Bower, {G C} and Falcke, {H D E} and Beswick, {R J} and Muxlow, {T W B} and D Fenech",

year = "2010",

language = "English",

booktitle = "host publication",

note = "10th European VLBI Network Symposium and EVN Users Meeting: VLBI and the new generation of radio arrays ; Conference date: 22-11-2010 Through 24-11-2011",

url = "http://adsabs.harvard.edu/abs/2010evn..confE..14G",

}

TY - GEN

T1 - The expansion of SN2008iz in M82

AU - Brunthaler, A

AU - Marti-Vidal, I

AU - Menten, K M

AU - Reid, M J

AU - Henkel, C

AU - Bower, G C

AU - Falcke, H D E

AU - Beswick, R J

AU - Muxlow, T W B

AU - Fenech, D

PY - 2010

Y1 - 2010

N2 - We present first results from the ongoing radio monitoring of SN 2008iz in M82. The VLBI images reveal a shell-like structure with circular symmetry, which expands in a self-similar way. There is strong evidence of a compact component with a steep spectrum at the center of the shell. The expansion curve obtained from our VLBI observations is marginally decelerated (m = 0.89) and can be modeled simultaneously with the available radio light curves. While the results of this simultaneous fitting are not conclusive (i.e. different combinations of values of the magnetic field, CSM density profile, and electron energy distribution, provide fits to the available data with similar quality), additional observations should allow a more robust and detailed modeling.

AB - We present first results from the ongoing radio monitoring of SN 2008iz in M82. The VLBI images reveal a shell-like structure with circular symmetry, which expands in a self-similar way. There is strong evidence of a compact component with a steep spectrum at the center of the shell. The expansion curve obtained from our VLBI observations is marginally decelerated (m = 0.89) and can be modeled simultaneously with the available radio light curves. While the results of this simultaneous fitting are not conclusive (i.e. different combinations of values of the magnetic field, CSM density profile, and electron energy distribution, provide fits to the available data with similar quality), additional observations should allow a more robust and detailed modeling.

M3 - Conference contribution

BT - host publication

T2 - 10th European VLBI Network Symposium and EVN Users Meeting: VLBI and the new generation of radio arrays

Y2 - 22 November 2010 through 24 November 2011

ER -

The expansion of SN2008iz in M82

Abstract

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