Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994mnras.266..891b&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Vol. 266, NO. 4/FEB15, P. 891, 1994
Astronomy and Astrophysics
Astronomy
19
Stars: Chemically Peculiar - Circumstellar Matter - Stars: Individual: 131 Tau
Scientific paper
High signal-to-noise ratio spectra of 131 Tau indicate that this peculiar λ Boo star has a circumstellar shell similar to that of the well-known Ae shell star 17 Sex. The shell is most apparent in low-excitation Fe II and Ti II lines, but is also visible as narrow core components at Ca II H and K, and in the Balmer lines. The Hα profile of the star is partly filled in by weak emission, in addition to having a shell core. This is the first known case of a λ Boo star displaying shell characteristics in the Balmer line profiles. The presence of circumstellar material supports the recent suggestion that λ Boo stars are A-type stars which are currently accreting atmospheres from interstellar gas that has been metal-depleted by selective condensation into interstellar grains.
Bohlender David A.
Walker Gordon A. H.
No associations
LandOfFree
131-TAURI - another Lambda-Bootis Star with a Shell does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with 131-TAURI - another Lambda-Bootis Star with a Shell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 131-TAURI - another Lambda-Bootis Star with a Shell will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1017881