Bima array photodissociation measurements of HCN and CS in comet Hale-Bopp (C/1995 O1)

Lewis E. Snyder; J. M. Veal; L. M. Woodney; M. C.H. Wright; Patrick Palmer; Michael F. A'Hearn; Y. J. Kuan; I. De Pater; J. R. Forster

doi:10.1086/318756

Bima array photodissociation measurements of HCN and CS in comet Hale-Bopp (C/1995 O1)

Lewis E. Snyder^*, J. M. Veal, L. M. Woodney, M. C.H. Wright, Patrick Palmer, Michael F. A'Hearn, Y. J. Kuan, I. De Pater, J. R. Forster

^*此作品的通信作者

地球科學系(含海洋環境研究所)

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

20 引文斯高帕斯（Scopus）

摘要

We present single-field images, cross-correlation spectra, and autocorrelation spectra of HCN and CS from comet Hale-Bopp (C/1995 O1) observed with the BIMA array. Haser modeling of our HCN images yields scale length values that are in excellent agreement with both the theoretical prediction and our previous mosaicked-image value. On the other hand, the same method applied to CS yields a scale length that is ∼ 10 times smaller than the commonly accepted value. Consequently, the CS fraction in comets would be increased with respect to some earlier determinations.

原文	英語
頁（從 - 到）	1147-1154
頁數	8
期刊	Astronomical Journal
卷	121
發行號	2
DOIs	https://doi.org/10.1086/318756
出版狀態	已發佈 - 2001 二月

ASJC Scopus subject areas

天文和天體物理學
空間與行星科學

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10.1086/318756

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title = "Bima array photodissociation measurements of HCN and CS in comet Hale-Bopp (C/1995 O1)",

abstract = "We present single-field images, cross-correlation spectra, and autocorrelation spectra of HCN and CS from comet Hale-Bopp (C/1995 O1) observed with the BIMA array. Haser modeling of our HCN images yields scale length values that are in excellent agreement with both the theoretical prediction and our previous mosaicked-image value. On the other hand, the same method applied to CS yields a scale length that is ∼ 10 times smaller than the commonly accepted value. Consequently, the CS fraction in comets would be increased with respect to some earlier determinations.",

keywords = "Comets: individual (Hale-Bopp (C/1995 O1)), Molecular processes, Radio emission lines, Techniques: interferometric",

author = "Snyder, {Lewis E.} and Veal, {J. M.} and Woodney, {L. M.} and Wright, {M. C.H.} and Patrick Palmer and A'Hearn, {Michael F.} and Kuan, {Y. J.} and {De Pater}, I. and Forster, {J. R.}",

year = "2001",

month = feb,

doi = "10.1086/318756",

language = "English",

volume = "121",

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journal = "Astronomical Journal",

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TY - JOUR

T1 - Bima array photodissociation measurements of HCN and CS in comet Hale-Bopp (C/1995 O1)

AU - Snyder, Lewis E.

AU - Veal, J. M.

AU - Woodney, L. M.

AU - Wright, M. C.H.

AU - Palmer, Patrick

AU - A'Hearn, Michael F.

AU - Kuan, Y. J.

AU - De Pater, I.

AU - Forster, J. R.

PY - 2001/2

Y1 - 2001/2

N2 - We present single-field images, cross-correlation spectra, and autocorrelation spectra of HCN and CS from comet Hale-Bopp (C/1995 O1) observed with the BIMA array. Haser modeling of our HCN images yields scale length values that are in excellent agreement with both the theoretical prediction and our previous mosaicked-image value. On the other hand, the same method applied to CS yields a scale length that is ∼ 10 times smaller than the commonly accepted value. Consequently, the CS fraction in comets would be increased with respect to some earlier determinations.

AB - We present single-field images, cross-correlation spectra, and autocorrelation spectra of HCN and CS from comet Hale-Bopp (C/1995 O1) observed with the BIMA array. Haser modeling of our HCN images yields scale length values that are in excellent agreement with both the theoretical prediction and our previous mosaicked-image value. On the other hand, the same method applied to CS yields a scale length that is ∼ 10 times smaller than the commonly accepted value. Consequently, the CS fraction in comets would be increased with respect to some earlier determinations.

KW - Comets: individual (Hale-Bopp (C/1995 O1))

KW - Molecular processes

KW - Radio emission lines

KW - Techniques: interferometric

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JO - Astronomical Journal

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SN - 0004-6256

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Bima array photodissociation measurements of HCN and CS in comet Hale-Bopp (C/1995 O1)

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