A New Outburst Stage of the Symbiotic Triple–Star System CH Cygni

A. Skopal; M. F. Bode; Stewart Eyres; L. Errico; M. Teodorani; A. A. Vittone; V. G. Elkin; M. M. Crocker; R. Davis

A New Outburst Stage of the Symbiotic Triple–Star System CH Cygni

A. Skopal, M. F. Bode, Stewart Eyres, L. Errico, M. Teodorani, A. A. Vittone, V. G. Elkin, M. M. Crocker, R. Davis

Faculty of Computing, Engineering and Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We present the HST imaging, the VLA radio map (5 GHz), plus optical high-resolution (echelle) spectroscopy and the U photoelectric photometry of the symbiotic star CH Cyg obtained during its 1998-2000 active phase. The HST image shows the central stars are embedded in a nebula extended to ~620+/-150 A.U. The nebula is a product of the recent 1998 outburst. The flux contours of the radio VLA observation follow well the shape of the optical HST image. Photometric observations revealed an eclipse of the active star in the inner binary (the symbiotic pair) by the cool giant on the outer, 14.5-year period orbit. Evolution of the spectrum and variation in the hydrogen line profiles result from an irregular, high-velocity (~1200 km/sec) mass outflow from the central star.

Original language	English
Title of host publication	Astronomical Society of the Pacific Conference
Subtitle of host publication	Eta Carinae and Other Mysterious Stars: The Hidden Opportunities of Emission Spectroscopy
Publisher	Astronomical Society of the Pacific
Pages	15-18
Volume	242
ISBN (Electronic)	978-1-58381-578-6
ISBN (Print)	1-58381-080-3
Publication status	Published - 2001

Cite this

Skopal, A., Bode, M. F., Eyres, S., Errico, L., Teodorani, M., Vittone, A. A., Elkin, V. G., Crocker, M. M., & Davis, R. (2001). A New Outburst Stage of the Symbiotic Triple–Star System CH Cygni. In Astronomical Society of the Pacific Conference: Eta Carinae and Other Mysterious Stars: The Hidden Opportunities of Emission Spectroscopy (Vol. 242, pp. 15-18). Astronomical Society of the Pacific.

@inproceedings{cb15dc8565aa41ce8ca76c3ae319313c,

title = "A New Outburst Stage of the Symbiotic Triple–Star System CH Cygni",

abstract = "We present the HST imaging, the VLA radio map (5 GHz), plus optical high-resolution (echelle) spectroscopy and the U photoelectric photometry of the symbiotic star CH Cyg obtained during its 1998-2000 active phase. The HST image shows the central stars are embedded in a nebula extended to ~620+/-150 A.U. The nebula is a product of the recent 1998 outburst. The flux contours of the radio VLA observation follow well the shape of the optical HST image. Photometric observations revealed an eclipse of the active star in the inner binary (the symbiotic pair) by the cool giant on the outer, 14.5-year period orbit. Evolution of the spectrum and variation in the hydrogen line profiles result from an irregular, high-velocity (~1200 km/sec) mass outflow from the central star.",

author = "A. Skopal and Bode, {M. F.} and Stewart Eyres and L. Errico and M. Teodorani and Vittone, {A. A.} and Elkin, {V. G.} and Crocker, {M. M.} and R. Davis",

year = "2001",

language = "English",

isbn = "1-58381-080-3",

volume = "242",

pages = "15--18",

booktitle = "Astronomical Society of the Pacific Conference",

publisher = "Astronomical Society of the Pacific",

}

Skopal, A, Bode, MF, Eyres, S, Errico, L, Teodorani, M, Vittone, AA, Elkin, VG, Crocker, MM & Davis, R 2001, A New Outburst Stage of the Symbiotic Triple–Star System CH Cygni. in Astronomical Society of the Pacific Conference: Eta Carinae and Other Mysterious Stars: The Hidden Opportunities of Emission Spectroscopy. vol. 242, Astronomical Society of the Pacific, pp. 15-18.

A New Outburst Stage of the Symbiotic Triple–Star System CH Cygni. / Skopal, A.; Bode, M. F.; Eyres, Stewart et al.
Astronomical Society of the Pacific Conference: Eta Carinae and Other Mysterious Stars: The Hidden Opportunities of Emission Spectroscopy. Vol. 242 Astronomical Society of the Pacific, 2001. p. 15-18.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - A New Outburst Stage of the Symbiotic Triple–Star System CH Cygni

AU - Skopal, A.

AU - Bode, M. F.

AU - Eyres, Stewart

AU - Errico, L.

AU - Teodorani, M.

AU - Vittone, A. A.

AU - Elkin, V. G.

AU - Crocker, M. M.

AU - Davis, R.

PY - 2001

Y1 - 2001

N2 - We present the HST imaging, the VLA radio map (5 GHz), plus optical high-resolution (echelle) spectroscopy and the U photoelectric photometry of the symbiotic star CH Cyg obtained during its 1998-2000 active phase. The HST image shows the central stars are embedded in a nebula extended to ~620+/-150 A.U. The nebula is a product of the recent 1998 outburst. The flux contours of the radio VLA observation follow well the shape of the optical HST image. Photometric observations revealed an eclipse of the active star in the inner binary (the symbiotic pair) by the cool giant on the outer, 14.5-year period orbit. Evolution of the spectrum and variation in the hydrogen line profiles result from an irregular, high-velocity (~1200 km/sec) mass outflow from the central star.

AB - We present the HST imaging, the VLA radio map (5 GHz), plus optical high-resolution (echelle) spectroscopy and the U photoelectric photometry of the symbiotic star CH Cyg obtained during its 1998-2000 active phase. The HST image shows the central stars are embedded in a nebula extended to ~620+/-150 A.U. The nebula is a product of the recent 1998 outburst. The flux contours of the radio VLA observation follow well the shape of the optical HST image. Photometric observations revealed an eclipse of the active star in the inner binary (the symbiotic pair) by the cool giant on the outer, 14.5-year period orbit. Evolution of the spectrum and variation in the hydrogen line profiles result from an irregular, high-velocity (~1200 km/sec) mass outflow from the central star.

M3 - Conference contribution

SN - 1-58381-080-3

VL - 242

SP - 15

EP - 18

BT - Astronomical Society of the Pacific Conference

PB - Astronomical Society of the Pacific

ER -

A New Outburst Stage of the Symbiotic Triple–Star System CH Cygni

Abstract

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