Results 1 to 10 of about 14,581 (202)
A Third Star in the T Tauri System [PDF]
The Astrophysical Journal, 2000 5 pages in AASTeX preprint form, including one grayscale ...
Chris D. Koresko
core +9 more sources
Is T Tauri North a “Classical” T Tauri Star? [PDF]
The Astrophysical Journal, 2020 Abstract We present high-resolution H- and K-band spectroscopic observations of the archetypal T Tauri star T Tau North. Synthetic spectral modeling is used to derive the K-band temperature, surface gravity, magnetic field strength, and rotational velocity for this star. The K-band spectroscopic temperature measured is
C. Flores, B. Reipurth, M. S. Connelley
openaire +4 more sources
Gender &History, EarlyView., 2023 Abstract This article uses election addresses to consider how the early women parliamentary candidates sought to make their case to English voters. It then explores the insights that Mass Observation's election surveys offer into public attitudes to women politicians, and gender and political leadership more broadly, from the late 1930s to the early ...
David Thackeray, Lisa Berry‐Waite
wiley +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 +6 more sources
Magnetospheric accretion on the T Tauri star BP Tauri [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 From observations collected with the ESPaDOnS and NARVAL spectropolarimeters, we report the detection of Zeeman signatures on the classical T Tauri star BP Tau. Circular polarisation signatures in photospheric lines and in narrow emission lines tracing magnetospheric accretion are monitored throughout most of the rotation cycle of BP Tau at two ...
Donati, J.-F. +17 more
openaire +8 more sources
Mass accretion on to T Tauri stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2006 17 pages, 10 figures, accepted for publication by ...
Gregory, S. G. +3 more
openaire +8 more sources
Evolutionary status of T Tauri stars [PDF]
Research in Astronomy and Astrophysics, 2018 The problem of the determination of T Tauri stars masses and ages using their evolutionary status is discussed. We test of pre-main sequence evolutionary models of D'Antona \& Mazzitelli (1994), Dotter et al. (2008), Bressan et al. (2012) and Chen et al. (2014), Baraffe et al.
Olga V. Eretnova, A. E. Dudorov
openaire +4 more sources
Spectropolarimetry of the Classical T Tauri Star T Tauri [PDF]
The Astronomical Journal, 2006 High-resolution (R ≈ 60,000) circular spectropolarimetry of the classical T Tauri star T Tau is presented. The star was observed on 1997 November 21 and 22. Analyzing 12 photospheric absorption lines, the mean longitudinal magnetic field is found to be Bz = 12 ± 35 G. The 3 σ upper limit of |Bz| ≤ 105 G.
Jeff A. Valenti +4 more
openaire +2 more sources
Circular polarization in T Tauri stars [PDF]
The Astrophysical Journal, 1986 We report the detection of circular polarization in three T Tauri stars with known intrinsic linear polarization. A circumstellar origin is required.
Pierre Bastien, R. Nadeau
openaire +2 more sources
The magnetic obliquity of accreting T Tauri stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT Classical T Tauri stars (CTTSs) accrete material from their discs through their magnetospheres. The geometry of the accretion flow strongly depends on the magnetic obliquity, i.e. the angle between the rotational and magnetic axes. We aim at deriving the distribution of magnetic obliquities in a sample of 10 CTTSs.
Jerome Bouvier +3 more
openaire +5 more sources