Nebular observations of the ejecta surrounding eta Carinae using the STIS and HST

Details Nebular observations of the ejecta surrounding eta Carinae using the STIS and HST Nebular observations of the ejecta surrounding eta Carinae using the STIS and HST

Jun 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aspc..233..185g&link_type=abstract

P Cygni 2000: 400 Years of Progress, ASP Conference Proceeding Vol. 233, Edited by M. de Groot and C. Sterken, San Francisco: As

Astronomy and Astrophysics

Astronomy

Scientific paper

We are using the Space Telescope Imaging Spectrograph (STIS) with the Hubble Space Telescope (HST) to study Eta Carinae and its associated ejecta. The 52 x 0.1 arcsec aperture and medium-dispersion gratings with CCD provide angular resolution of 0.1 arcsec and spectral resolving power of 5000 from 1640 to 10100 A. Observations began at the spectroscopic minimum in early 1998 with the intent to study the time-development of the star and nebulosity through one 5.5-year spectroscopic period. As the star increased in brightness, the nebula underwent very significant changes in brightness, ionization, line emission and structure. A major program is underway to identify the many new lines measured in this series of observations, to model the nebular conditions and to describe the spatial structure of the ejecta.

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