Near-UV and optical spectroscopy of comets using the ISIS spectrograph on the WHT

M G Hyland; A Fitzsimmons; C Snodgrass

doi:10.1093/mnras/stz075

Near-UV and optical spectroscopy of comets using the ISIS spectrograph on the WHT

M G Hyland, A Fitzsimmons, C Snodgrass

School of Mathematics and Physics

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Abstract

We present an analysis of long-slit cometary spectroscopy using the dual-arm ISIS spectrograph on the 4.2 m WHT. Eleven comets were observed over two nights in 2016 March and we detected the OH (0-0) emission band at 3085 {\AA} in the spectra of five of these comets. Emission bands of the species NH, CN, C$_{3}$, C$_{2}$, NH$_{2}$ and [OI] were also detected. We used Haser modelling to determine molecular production rates and abundance ratios for the observed species. We found that our average abundances relative to OH and CN were generally consistent with those measured in previous studies.

Original language	English
Pages (from-to)	1347–1358
Journal	Monthly Notices of the Royal Astronomical Society
Volume	484
Issue number	1
Early online date	09 Jan 2019
DOIs	https://doi.org/10.1093/mnras/stz075
Publication status	Published - 21 Mar 2019

Bibliographical note

13 pages, 7 figures, 9 tables, accepted for publication in MNRAS

Keywords

astro-ph.EP

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10.1093/mnras/stz075Licence: Unspecified

Near-UV and optical spectroscopy of comets using the ISIS spectrograph on the WHT
© 2019 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. This work is made available online in accordance with the publisher’s policies. Please refer to any applicable terms of use of the publisher.
Final published version, 803 KBLicence: Unspecified

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title = "Near-UV and optical spectroscopy of comets using the ISIS spectrograph on the WHT",

abstract = "We present an analysis of long-slit cometary spectroscopy using the dual-arm ISIS spectrograph on the 4.2 m WHT. Eleven comets were observed over two nights in 2016 March and we detected the OH (0-0) emission band at 3085 {\AA} in the spectra of five of these comets. Emission bands of the species NH, CN, C$_{3}$, C$_{2}$, NH$_{2}$ and [OI] were also detected. We used Haser modelling to determine molecular production rates and abundance ratios for the observed species. We found that our average abundances relative to OH and CN were generally consistent with those measured in previous studies. ",

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AU - Fitzsimmons, A

AU - Snodgrass, C

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AB - We present an analysis of long-slit cometary spectroscopy using the dual-arm ISIS spectrograph on the 4.2 m WHT. Eleven comets were observed over two nights in 2016 March and we detected the OH (0-0) emission band at 3085 {\AA} in the spectra of five of these comets. Emission bands of the species NH, CN, C$_{3}$, C$_{2}$, NH$_{2}$ and [OI] were also detected. We used Haser modelling to determine molecular production rates and abundance ratios for the observed species. We found that our average abundances relative to OH and CN were generally consistent with those measured in previous studies.

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DO - 10.1093/mnras/stz075

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