New Analysis of the Deep Impact Comet 9P/Tempel 1 Event Using High Resolution Spectroscopy: Evidence From 630 NM [O( 1 D)] Emission

Jason B. Corliss; Walt M. Harris; Edwin J. Mierkiewicz; Frederick L. Roesler

New Analysis of the Deep Impact Comet 9P/Tempel 1 Event Using High Resolution Spectroscopy: Evidence From 630 NM [O( 1 D)] Emission

Jason B. Corliss, Walt M. Harris, Edwin J. Mierkiewicz, Frederick L. Roesler

Research output: Contribution to conference › Presentation

Abstract

Thorough analysis of narrow bandpass high spectral resolution (R ≈ 100,000) observations of [O 1 D] 630nm emission from comet 9P/Tempel 1 taken over a ~1’ FOV both before and after the Deep Impact event provides evidence for a long-lived high velocity jet-like feature. The observations were obtained with an all-reflective spatial heterodyne spectrometer (SHS) coupled to the McMath-Pierce Main telescope. Several spectra centered on Tempel 1 were acquired during the period of 07/04/2005-07/06/2005 UT. We report here on the presence and evolution of a cometary emission feature that appears consistently and exclusively in the post-impact narrow-band spectra centered near the telluric [O 1 D] 630nm emission line. This cometary emission feature shows substantial and distinct Doppler shifts over consecutive post-impact observational nights and if the feature is

the anticipated [O 1 D], the corresponding line of sight velocities are -13.4 to -6.5 km/s, relative to the comet’s rest frame.

Original language	American English
State	Published - Nov 2015
Externally published	Yes
Event	47th American Astronomical Society Division for Planetary Studies Meeting - National Harbor, MD Duration: Nov 1 2015 → …

Conference

Conference	47th American Astronomical Society Division for Planetary Studies Meeting
Period	11/1/15 → …

Keywords

Comet 9P/Tempel 1
cometary emission

Disciplines

Astrophysics and Astronomy

Cite this

@conference{eb216c86e97f40fbaeb70b61a389c0b4,

title = "New Analysis of the Deep Impact Comet 9P/Tempel 1 Event Using High Resolution Spectroscopy: Evidence From 630 NM [O( 1 D)] Emission",

abstract = " Thorough analysis of narrow bandpass high spectral resolution (R ≈ 100,000) observations of [O 1 D] 630nm emission from comet 9P/Tempel 1 taken over a ~1{\textquoteright} FOV both before and after the Deep Impact event provides evidence for a long-lived high velocity jet-like feature. The observations were obtained with an all-reflective spatial heterodyne spectrometer (SHS) coupled to the McMath-Pierce Main telescope. Several spectra centered on Tempel 1 were acquired during the period of 07/04/2005-07/06/2005 UT. We report here on the presence and evolution of a cometary emission feature that appears consistently and exclusively in the post-impact narrow-band spectra centered near the telluric [O 1 D] 630nm emission line. This cometary emission feature shows substantial and distinct Doppler shifts over consecutive post-impact observational nights and if the feature is the anticipated [O 1 D], the corresponding line of sight velocities are -13.4 to -6.5 km/s, relative to the comet{\textquoteright}s rest frame.",

keywords = "Comet 9P/Tempel 1, cometary emission",

author = "Corliss, {Jason B.} and Harris, {Walt M.} and Mierkiewicz, {Edwin J.} and Roesler, {Frederick L.}",

year = "2015",

month = nov,

language = "American English",

note = "47th American Astronomical Society Division for Planetary Studies Meeting ; Conference date: 01-11-2015",

}

TY - CONF

T1 - New Analysis of the Deep Impact Comet 9P/Tempel 1 Event Using High Resolution Spectroscopy: Evidence From 630 NM [O( 1 D)] Emission

AU - Corliss, Jason B.

AU - Harris, Walt M.

AU - Mierkiewicz, Edwin J.

AU - Roesler, Frederick L.

PY - 2015/11

Y1 - 2015/11

N2 - Thorough analysis of narrow bandpass high spectral resolution (R ≈ 100,000) observations of [O 1 D] 630nm emission from comet 9P/Tempel 1 taken over a ~1’ FOV both before and after the Deep Impact event provides evidence for a long-lived high velocity jet-like feature. The observations were obtained with an all-reflective spatial heterodyne spectrometer (SHS) coupled to the McMath-Pierce Main telescope. Several spectra centered on Tempel 1 were acquired during the period of 07/04/2005-07/06/2005 UT. We report here on the presence and evolution of a cometary emission feature that appears consistently and exclusively in the post-impact narrow-band spectra centered near the telluric [O 1 D] 630nm emission line. This cometary emission feature shows substantial and distinct Doppler shifts over consecutive post-impact observational nights and if the feature is the anticipated [O 1 D], the corresponding line of sight velocities are -13.4 to -6.5 km/s, relative to the comet’s rest frame.

AB - Thorough analysis of narrow bandpass high spectral resolution (R ≈ 100,000) observations of [O 1 D] 630nm emission from comet 9P/Tempel 1 taken over a ~1’ FOV both before and after the Deep Impact event provides evidence for a long-lived high velocity jet-like feature. The observations were obtained with an all-reflective spatial heterodyne spectrometer (SHS) coupled to the McMath-Pierce Main telescope. Several spectra centered on Tempel 1 were acquired during the period of 07/04/2005-07/06/2005 UT. We report here on the presence and evolution of a cometary emission feature that appears consistently and exclusively in the post-impact narrow-band spectra centered near the telluric [O 1 D] 630nm emission line. This cometary emission feature shows substantial and distinct Doppler shifts over consecutive post-impact observational nights and if the feature is the anticipated [O 1 D], the corresponding line of sight velocities are -13.4 to -6.5 km/s, relative to the comet’s rest frame.

KW - Comet 9P/Tempel 1

KW - cometary emission

M3 - Presentation

T2 - 47th American Astronomical Society Division for Planetary Studies Meeting

Y2 - 1 November 2015

ER -