Fabry-Perot Observations of Comet Hale-Bopp H_2O(+) Velocity Fields

F. L. Roesler; D. A. Klinglesmith; F. Scherb; E. J. Mierkiewicz; R. J. Oliversen

Fabry-Perot Observations of Comet Hale-Bopp H_2O(+) Velocity Fields

F. L. Roesler, D. A. Klinglesmith, F. Scherb, E. J. Mierkiewicz, R. J. Oliversen

Research output: Contribution to conference › Presentation

Abstract

We have obtained Doppler-sliced images of H_2O(+) emission from Comet Hale-Bopp, using a 15-cm, dual-etalon, Fabry-Perot/CCD imaging spectrometer at the McMath-Pierce 0.8-meter west auxiliary telescope of the National Solar Observatory on Kitt Peak. The 6-arcmin field of view was centered on the comet nucleus, and the spectral resolution was 0.4 Angstroms (20km/sec). The observations consisted of ``data cubes,'' i.e., a sequence of images of the 6158 Angstroms emission doublet at velocity steps of 12.5 or 25km/sec, covering a range from -75km/sec to +75km/sec in the comet reference frame. We were able to follow the comet for 1 to 1(1/_2) hours each clear night. We obtained useable data cubes on at least ten nights between February 25 and April 16. These data are being examined to investigate the comet-solar wind interaction. We will present both still images and time-lapse movies showing sequences of ion velocities and accelerations on the plane of the sky.

Original language	American English
State	Published - Jul 1997
Externally published	Yes
Event	29th American Astronomical Society Division of Planetary Sciences Meeting - Cambridge, MA Duration: Jul 1 1997 → …

Conference

Conference	29th American Astronomical Society Division of Planetary Sciences Meeting
Period	7/1/97 → …

Keywords

Comet Hale-Bopp
cometary comae
solar wind

Disciplines

Astrophysics and Astronomy

Cite this

@conference{5ce3f60c19694279ad8fc964be8fd137,

title = "Fabry-Perot Observations of Comet Hale-Bopp H_2O(+) Velocity Fields",

abstract = " We have obtained Doppler-sliced images of H_2O(+) emission from Comet Hale-Bopp, using a 15-cm, dual-etalon, Fabry-Perot/CCD imaging spectrometer at the McMath-Pierce 0.8-meter west auxiliary telescope of the National Solar Observatory on Kitt Peak. The 6-arcmin field of view was centered on the comet nucleus, and the spectral resolution was 0.4 Angstroms (20km/sec). The observations consisted of ``data cubes,'' i.e., a sequence of images of the 6158 Angstroms emission doublet at velocity steps of 12.5 or 25km/sec, covering a range from -75km/sec to +75km/sec in the comet reference frame. We were able to follow the comet for 1 to 1(1/_2) hours each clear night. We obtained useable data cubes on at least ten nights between February 25 and April 16. These data are being examined to investigate the comet-solar wind interaction. We will present both still images and time-lapse movies showing sequences of ion velocities and accelerations on the plane of the sky.",

keywords = "Comet Hale-Bopp, cometary comae, solar wind",

author = "Roesler, {F. L.} and Klinglesmith, {D. A.} and F. Scherb and Mierkiewicz, {E. J.} and Oliversen, {R. J.}",

year = "1997",

month = jul,

language = "American English",

note = "29th American Astronomical Society Division of Planetary Sciences Meeting ; Conference date: 01-07-1997",

}

TY - CONF

T1 - Fabry-Perot Observations of Comet Hale-Bopp H_2O(+) Velocity Fields

AU - Roesler, F. L.

AU - Klinglesmith, D. A.

AU - Scherb, F.

AU - Mierkiewicz, E. J.

AU - Oliversen, R. J.

PY - 1997/7

Y1 - 1997/7

N2 - We have obtained Doppler-sliced images of H_2O(+) emission from Comet Hale-Bopp, using a 15-cm, dual-etalon, Fabry-Perot/CCD imaging spectrometer at the McMath-Pierce 0.8-meter west auxiliary telescope of the National Solar Observatory on Kitt Peak. The 6-arcmin field of view was centered on the comet nucleus, and the spectral resolution was 0.4 Angstroms (20km/sec). The observations consisted of ``data cubes,'' i.e., a sequence of images of the 6158 Angstroms emission doublet at velocity steps of 12.5 or 25km/sec, covering a range from -75km/sec to +75km/sec in the comet reference frame. We were able to follow the comet for 1 to 1(1/_2) hours each clear night. We obtained useable data cubes on at least ten nights between February 25 and April 16. These data are being examined to investigate the comet-solar wind interaction. We will present both still images and time-lapse movies showing sequences of ion velocities and accelerations on the plane of the sky.

AB - We have obtained Doppler-sliced images of H_2O(+) emission from Comet Hale-Bopp, using a 15-cm, dual-etalon, Fabry-Perot/CCD imaging spectrometer at the McMath-Pierce 0.8-meter west auxiliary telescope of the National Solar Observatory on Kitt Peak. The 6-arcmin field of view was centered on the comet nucleus, and the spectral resolution was 0.4 Angstroms (20km/sec). The observations consisted of ``data cubes,'' i.e., a sequence of images of the 6158 Angstroms emission doublet at velocity steps of 12.5 or 25km/sec, covering a range from -75km/sec to +75km/sec in the comet reference frame. We were able to follow the comet for 1 to 1(1/_2) hours each clear night. We obtained useable data cubes on at least ten nights between February 25 and April 16. These data are being examined to investigate the comet-solar wind interaction. We will present both still images and time-lapse movies showing sequences of ion velocities and accelerations on the plane of the sky.

KW - Comet Hale-Bopp

KW - cometary comae

KW - solar wind

M3 - Presentation

T2 - 29th American Astronomical Society Division of Planetary Sciences Meeting

Y2 - 1 July 1997

ER -