ROTATIONAL VELOCITIES FOR T-TAURI STARS WITH STRONG EMISSION-LINES

Authors
GAMEIRO JF LAGO MTVT
Citation
Jf. Gameiro et Mtvt. Lago, ROTATIONAL VELOCITIES FOR T-TAURI STARS WITH STRONG EMISSION-LINES, Monthly Notices of the Royal Astronomical Society, 265(2), 1993, pp. 359-364
Citations number
20
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Monthly Notices of the Royal Astronomical Society → ACNP
ISSN journal
00358711
Volume
265
Issue
2
Year of publication
1993
Pages
359 - 364
Database
ISI
SICI code
0035-8711(1993)265:2<359:RVFTSW>2.0.ZU;2-M
Abstract
We discuss the use of the Fourier fast transform technique in the dete rmination of stellar rotational velocities and its applicability to sl ow rotators. Specifically, we identify the limiting (smallest) rotatio nal velocity that can be measured as a function of the resolution and signal-to-noise ratio of the observations. We apply this technique to new observations of five T Tauri stars with strong emission. The first measurements of v sin i for one of these stars, LkHalpha 264, are pre sented.