Spectropolarimetry of the Classical T Tauri Star T Tauri
نویسندگان
چکیده
منابع مشابه
Spectropolarimetry of the Classical T Tauri Star TW Hydrae
We present high resolution (R ≈ 60, 000) circular spectropolarimetry of the classical T Tauri star TW Hydrae. We analyze 12 photospheric absorption lines and measure the net longitudinal magnetic field for 6 consecutive nights. While no net polarization is detected the first five nights, a significant photospheric field of Bz = 149± 33 G is found on the sixth night. To rule out spurious instrum...
متن کاملCaptured at millimeter wavelengths: a flare from the classical T Tauri star DQ Tauri
For several hours on 2008 April 19, the T Tauri spectroscopic binary DQ Tau was observed to brighten, reaching a maximum detected flux of 468 mJy and likely making it (briefly) the brightest object at 3 mm in the Taurus star-forming region. We present the light curve of a rarely before observed millimeter flare originating in the region around a pre-main-sequence star, and the first from a clas...
متن کاملA Hot Wind from the Classical T Tauri Stars: TW Hydrae and T Tauri
Spectroscopy of the infrared He I (λ10830) line with KECK/NIRSPEC and IRTF/CSHELL and of the ultraviolet C III (λ977) and O VI (λ1032) emission with FUSE reveals that the classical T Tauri star TW Hydrae exhibits P Cygni profiles, line asymmetries, and absorption indicative of a continuous, fast (∼400 km/s), hot (∼300,000 K) accelerating outflow with a mass loss rate ∼10–10 M⊙ yr −1 or larger. ...
متن کاملSpectropolarimetry and Modeling of the Eclipsing T Tauri Star Kh 15d
KH 15D is a strongly variable T Tauri star in the young star cluster NGC 2264 that shows a decrease in flux of 3.5 mag lasting for 18 days and repeating every 48 days. The eclipsing material is likely due to orbiting dust or rocky bodies in a partial ring or warped disk that periodically occults the star. We measured the polarized spectrum in and out of eclipse at the Keck and Palomar observato...
متن کاملOptical Variability of the T Tauri Star Hh30
We report results of V RI photometric monitoring of the T Tauri star plus disk system HH30. We find that HH30 is highly variable over timescales of a few days with ∆V ∼ 1.5 mag, ∆I ∼ 1.1 mag. Furthermore we find hints of periodicity with periodograms indicating possible periods of 11.6 and 19.8 days. The V RI photometry is available through the anonymous ftp service. We model the variability wi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2006
ISSN: 0004-6256,1538-3881
DOI: 10.1086/498306