Results 81 to 90 of about 57,378 (307)
Magnetospheric accretion-ejection processes in the classical T Tauri star AA Tauri [PDF]
, 2006 Context. Accretion and ejection are complex and related processes that vary on various timescales in young stars. Aims. We intend to investigate the accretion and outflow dynamics and their interaction from observations of the classical T Tauri star AA ...
J. Bouvier +12 more
semanticscholar +1 more source
The variability of T Tauri stars [PDF]
Symposium - International Astronomical Union, 1990 For many years we have monitored the variability of some bright T Tauri stars with the 0.6 m “Perkin telescope” at Van Vleck Observatory. Collaborators in this endeavor have included several astronomers at the Crimea Astrophysical Observatory, at Capidomonte Observatory, at the U.S. Naval Observatory, and even some sophisticated amateurs.
openaire +1 more source
Astronomy & Astrophysics, 2005 Using the UVES echelle spectrograph at the ESO VLT we obtained two-dimensional high-resolution (R = 50 000) spectra of the edge-on disk objects HH30*, HK Tau B, and HV Tau C. For comparison purposes we also observed with the same equipment both the classical T Tauri star HL Tau and the active late-type star LDN 1551-9. The spectra of all three observed
Appenzeller, Immo +2 more
openaire +3 more sources
, 2011 Context: A large sample of T Tauri stars exhibits optical jets, approximately half of which rotate slowly, only at ten per cent of their breakup velocity.
Agra-Amboage +93 more
core +2 more sources
Doppler Probe of Accretion onto a T Tauri star [PDF]
, 2014 The YY Ori stars are T Tauri stars with prominent time-variable redshifted absorption components that flank certain emission lines. One of the brightest in this class is S CrA, a visual double star. We have obtained a series of high-resolution spectra of
Gahm, Gösta +4 more
core +1 more source
Some resolutions on T Tauri stars [PDF]
Symposium - International Astronomical Union, 1990 This symposium is dedicated to the results of studies of flare stars. The necessity of the detailed analysis of observational data on flare stars follows from the very simple fact, that until now the theory has not found for the answer to the question: why the young stars of low luminosity are flaring.
openaire +1 more source
, 2005 We present the results of an XMM-Newton observation of the young (~2-4 Myr) cluster around the hot star sigma Orionis. In a previous paper we presented the analysis of the RGS spectrum of the central hot star; here we discuss the results of the analysis ...
Argiroffi +69 more
core +1 more source
A Two-Dimensional Near-Infrared Speckle Imaging Survey of T Tauri Stars in Taurus and Ophiuchus [PDF]
, 1992 We present the results of a magnitude limited (K≤8.5 mag) multiplicity survey of T Tauri stars in the two nearest star forming regions, Taurus-Auriga and Ophiuchus-Scorpius (D = 150 pc), observable from the northern hemisphere.
Ghez, A., Matthews, K., Neugebauer, G.
core +1 more source
The Canary Down the Coalmine: Dagenham, London and Labour Politics
The Political Quarterly, EarlyView.Abstract The history of Dagenham offers unique insights into both the changing composition of the working class and the forces that have reshaped domestic politics throughout the last 100 years, particularly the politics of the British labour movement.
Jon Cruddas
wiley +1 more source
THE PTF ORION PROJECT: A POSSIBLE PLANET TRANSITING A T-TAURI STAR [PDF]
, 2012 We report observations of a possible young transiting planet orbiting a previously known weak-lined T-Tauri star in the 7–10 Myr old Orion-OB1a/25-Ori region. The candidate was found as part of the Palomar Transient Factory (PTF) Orion project.
J. V. Eyken +37 more
semanticscholar +1 more source