High-resolution X-ray spectroscopy of BD +30°3639

Joel H. Kastner; Sam Yu Young; John Houck; Ehud Behar; Raanan Nordon; Noam Soker

doi:10.1017/S1743921306002936

High-resolution X-ray spectroscopy of BD +30°3639

Joel H. Kastner^*, Sam Yu Young, John Houck, Ehud Behar, Raanan Nordon, Noam Soker

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

We present preliminary results from the first X-ray gratings spectrometer observations of a planetary nebula, (PN). We have used the Chandra X-ray Observatory Low Energy Transmission Gratings Spectrometer (LETGS) to observe the bright, diffuse X-ray source within the well-studied BD +30°3639. The LETGS spectrum of BD +30°3639 displays prominent and well-resolved emission lines of H-like C, O, and Ne and He-like O and Ne. Initial modeling indicates a plasma temperature T_X ∼ 2.5 × 10⁶ K and abundance ratios of C/O ∼ 20, N/O ≲ 1, Ne/O ∼ 4, and Fe/O ∼ 0.1. These results suggest that the X-ray-emitting plasma is dominated by the shocked fast wind from the emerging PN core, where this wind gas likely originated from the intershell region of the progenitor asymptotic giant branch star.

Original language	English
Pages (from-to)	169-172
Number of pages	4
Journal	Proceedings of the International Astronomical Union
Volume	2
Issue number	234
DOIs	https://doi.org/10.1017/S1743921306002936
State	Published - Apr 2006
Externally published	Yes

Keywords

Planetary nebulae: individual (BD +30°3639)
Stars: mass loss
X-rays: individual (BD +30°3639)

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@article{cb50409dbeda405386f353e73b26c700,

title = "High-resolution X-ray spectroscopy of BD +30°3639",

abstract = "We present preliminary results from the first X-ray gratings spectrometer observations of a planetary nebula, (PN). We have used the Chandra X-ray Observatory Low Energy Transmission Gratings Spectrometer (LETGS) to observe the bright, diffuse X-ray source within the well-studied BD +30°3639. The LETGS spectrum of BD +30°3639 displays prominent and well-resolved emission lines of H-like C, O, and Ne and He-like O and Ne. Initial modeling indicates a plasma temperature TX ∼ 2.5 × 106 K and abundance ratios of C/O ∼ 20, N/O ≲ 1, Ne/O ∼ 4, and Fe/O ∼ 0.1. These results suggest that the X-ray-emitting plasma is dominated by the shocked fast wind from the emerging PN core, where this wind gas likely originated from the intershell region of the progenitor asymptotic giant branch star.",

keywords = "Planetary nebulae: individual (BD +30°3639), Stars: mass loss, X-rays: individual (BD +30°3639)",

author = "Kastner, {Joel H.} and Young, {Sam Yu} and John Houck and Ehud Behar and Raanan Nordon and Noam Soker",

year = "2006",

month = apr,

doi = "10.1017/S1743921306002936",

language = "英语",

volume = "2",

pages = "169--172",

journal = "Proceedings of the International Astronomical Union",

issn = "1743-9213",

publisher = "Cambridge University Press",

number = "234",

}

TY - JOUR

T1 - High-resolution X-ray spectroscopy of BD +30°3639

AU - Kastner, Joel H.

AU - Young, Sam Yu

AU - Houck, John

AU - Behar, Ehud

AU - Nordon, Raanan

AU - Soker, Noam

PY - 2006/4

Y1 - 2006/4

N2 - We present preliminary results from the first X-ray gratings spectrometer observations of a planetary nebula, (PN). We have used the Chandra X-ray Observatory Low Energy Transmission Gratings Spectrometer (LETGS) to observe the bright, diffuse X-ray source within the well-studied BD +30°3639. The LETGS spectrum of BD +30°3639 displays prominent and well-resolved emission lines of H-like C, O, and Ne and He-like O and Ne. Initial modeling indicates a plasma temperature TX ∼ 2.5 × 106 K and abundance ratios of C/O ∼ 20, N/O ≲ 1, Ne/O ∼ 4, and Fe/O ∼ 0.1. These results suggest that the X-ray-emitting plasma is dominated by the shocked fast wind from the emerging PN core, where this wind gas likely originated from the intershell region of the progenitor asymptotic giant branch star.

AB - We present preliminary results from the first X-ray gratings spectrometer observations of a planetary nebula, (PN). We have used the Chandra X-ray Observatory Low Energy Transmission Gratings Spectrometer (LETGS) to observe the bright, diffuse X-ray source within the well-studied BD +30°3639. The LETGS spectrum of BD +30°3639 displays prominent and well-resolved emission lines of H-like C, O, and Ne and He-like O and Ne. Initial modeling indicates a plasma temperature TX ∼ 2.5 × 106 K and abundance ratios of C/O ∼ 20, N/O ≲ 1, Ne/O ∼ 4, and Fe/O ∼ 0.1. These results suggest that the X-ray-emitting plasma is dominated by the shocked fast wind from the emerging PN core, where this wind gas likely originated from the intershell region of the progenitor asymptotic giant branch star.

KW - Planetary nebulae: individual (BD +30°3639)

KW - Stars: mass loss

KW - X-rays: individual (BD +30°3639)

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U2 - 10.1017/S1743921306002936

DO - 10.1017/S1743921306002936

M3 - 文章

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VL - 2

SP - 169

EP - 172

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

SN - 1743-9213

IS - 234

ER -