Observations of small-scale structure in AGB star winds: Precursors of neutral globules in PNE?

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Millimeter-interferometric mapping of thermal emission from molecules which trace dense gas reveals much clumpy structure in the envelopes of two AGB stars. Observations were made with the Caltech OVRO mm-array. The signal-to-noise ratio of the data allowed use of self-calibration to achieve high dynamic range images (∼ 100:1) in individual spectral channel maps of 0.7 km s-1 width. The angular resolution is ∼ 2″.

Original languageEnglish (US)
Title of host publicationRevista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
Pages68
Number of pages1
Volume15
StatePublished - 2003
EventWinds, Bubbles and Explosions: A Conference to Honor John Dyson - Patzcuaro, Michoacan, Mexico
Duration: Sep 9 2002Sep 13 2002

Other

OtherWinds, Bubbles and Explosions: A Conference to Honor John Dyson
CountryMexico
CityPatzcuaro, Michoacan
Period9/9/029/13/02

Fingerprint

globules
asymptotic giant branch stars
thermal emission
angular resolution
signal-to-noise ratio
dynamic range
signal to noise ratios
envelopes
calibration
gases
gas
molecules

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Bieging, J. H. (2003). Observations of small-scale structure in AGB star winds: Precursors of neutral globules in PNE? In Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias (Vol. 15, pp. 68)

Observations of small-scale structure in AGB star winds : Precursors of neutral globules in PNE? / Bieging, John H.

Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias. Vol. 15 2003. p. 68.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bieging, JH 2003, Observations of small-scale structure in AGB star winds: Precursors of neutral globules in PNE? in Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias. vol. 15, pp. 68, Winds, Bubbles and Explosions: A Conference to Honor John Dyson, Patzcuaro, Michoacan, Mexico, 9/9/02.
Bieging JH. Observations of small-scale structure in AGB star winds: Precursors of neutral globules in PNE? In Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias. Vol. 15. 2003. p. 68
Bieging, John H. / Observations of small-scale structure in AGB star winds : Precursors of neutral globules in PNE?. Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias. Vol. 15 2003. pp. 68
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