A Search for Line Shape and Depth Variations in 51 Pegasi and τ Bootis | Zendy

Timothy M. Brown | Zendy; R. Kotak | Zendy; Scott Horner | Zendy; E. J. Kennelly | Zendy; S. G. Korzennik | Zendy; P. Nisenson | Zendy; R. W. Noyes | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

A Search for Line Shape and Depth Variations in 51 Pegasi and τ Bootis

Author(s) -

Timothy M. Brown,

R. Kotak,

Scott Horner,

E. J. Kennelly,

S. G. Korzennik,

P. Nisenson,

R. W. Noyes

Publication year - 1998

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/311168

Subject(s) - astrophysics , line (geometry) , physics , stars , peg ratio , radial velocity , mathematics , geometry , finance , economics

Spectroscopic observations of 51 Pegasi and tau Bootis show no periodicchanges in the shapes of their line profiles; these results for 51 Peg are insignificant conflict with those reported by Gray and Hatzes (1997). Ourdetection limits are small enough to rule out nonradial pulsations as the causeof the variability in tau Boo, but not in 51 Peg. The absence of line shapechanges is consistent with these stars' radial velocity variability arisingfrom planetary-mass companions.Comment: 10 pages, 2 figures, plain TeX, accepted for publication in ApJ

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research