The variable star SU Tauri
نویسندگان
چکیده
منابع مشابه
Magnetospheric accretion and winds on the T Tauri star SU Aurigae Multi-spectral line variability and cross-correlation analysis
SU Aurigae is a T Tauri star that was well monitored during the MUSICOS 96 multi-site campaign. We present the results of the spectroscopic analysis of the circumstellar environment of this star, particularly of the Hα, Hβ, Na i D and He i D3 line profiles. The signatures of modulated outflows and mass accretion events are analysed, as well as transient spectral features. We compute the cross-c...
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 Third Star in the T Tauri System.
New speckle holographic images of the T Tauri infrared companion (T Tauri IRC; T Tauri S) reveal it to be a double system with a sky-projected separation of 0&farcs;05, corresponding to a linear distance of 7 AU. The presence of this third star may account for the relative paucity of dust surrounding the IRC.
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 کاملSpectropolarimetry 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...
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ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 1909
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.19091822404