HST-GHRS observations of alpha Piscis Austrini

Details HST-GHRS observations of alpha Piscis Austrini HST-GHRS observations of alpha Piscis Austrini

May 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...297l...5f&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 297, no. 1, p. L5-L8

Astronomy and Astrophysics

Astrophysics

13

Line Spectra, Spectral Signatures, Spectrum Analysis, Stellar Envelopes, Stellar Spectra, Absorption Spectra, Cosmic Dust, Hubble Space Telescope, Interstellar Matter

Scientific paper

The origin of the gaseous disk around the star beta Picoris is still unclear. A way to progress is to search for gas signatures in the envoironment of other stars presenting known IR excesses as initially discovered with the IRAS satellite. Recently, Cheng et al.(1994) reported the possible detection of circumstellar gas absorptions in the spectrum of alpha PsA from IUE archival data. Here, we present observations done in the same line of sight with the Goddard high resolution spectrograph (GHRS) on board the Space Telescope. No circumstellar absorption lines are observed. The implications of such a non detection are briefly discussed.

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