Results 111 to 120 of about 45,569 (296)
Magnetospheric accretion in T Tauri stars
EAS Publications Series, 2003 This presentation focuses on the current status of and challenges related to the magnetospheric accretion process in young stars. It also highlights recent efforts to characterize structure and dynamics of the magnetic star-disk interaction region from an observational approach combining various techniques (e.g. spectropolarimetry, interferometry, high-
openaire +2 more sources
Magnetic Fields of T Tauri Stars [PDF]
Symposium - International Astronomical Union, 1997 The magnetic field strengths of several T Tauri stars are derived by measuring the width of unblended Fe I lines of high and low values of geff·λ2 using the autocorrelation function. The T Tauri stars were selected for their low values of v · sin i, and large strengths of the Ca II emission component.
Jim Emerson, Eike W. Guenther
openaire +3 more sources
c2d Spitzer IRS Spectra of Disks around T Tauri Stars. III. [Ne II], [Fe I], and H2 Gas-Phase Lines [PDF]
, 2007 We present a survey of mid-infrared gas-phase lines toward a sample of 76 circumstellar disks around low-mass pre-main-sequence stars from the Spitzer "Cores to Disks" legacy program.
F. Lahuis +5 more
semanticscholar +1 more source
Orbital motion in T Tauri binary systems [PDF]
, 2001 Using speckle-interferometry we have carried out repeated measurements of relative positions for the components of 34 T Tauri binary systems. The projected separation of these components is low enough that orbital motion is expected to be observable ...
Baraffe +37 more
core +2 more sources
Antinomies of Alignment Redux: The United Arab Emirates and the United States
Middle East Policy, Volume 32, Issue 2, Page 134-152, Summer 2025.Abstract Over the past three decades, the United Arab Emirates has forged a sturdy bilateral security alignment with the United States. It has also pursued foreign policies that conflict with US interests in the Gulf and the broader Middle East. This contradiction is usually attributed to a hedging strategy.
Fred H. Lawson, Matteo Legrenzi
wiley +1 more source
The evolution of stars in the Taurus-Auriga T association
, 2007 In a recent study, individual parallaxes were determined for many stars of the Taurus-Auriga T association that are members of the same moving group. We use these new parallaxes to re-address the issue of the relationship between classical T Tauri stars (
Bertout, C., Cabrit, S., Siess, L.
core +2 more sources
Star formation environments and the distribution of binary separations [PDF]
, 1998 We have carried out K-band speckle observations of a sample of 114 X-ray selected weak-line T Tauri stars in the nearby Scorpius-Centaurus OB association. We find that for binary T Tauri stars closely associated to the early type stars in Upper Scorpius,
Brandner W. +9 more
core +2 more sources
Food and Energy Security, Volume 14, Issue 3, May/June 2025.ABSTRACT Iron deficiency anemia (IDA) is alarmingly prevalent in sub‐Saharan Africa, where populations often rely on nutrient‐poor staple crops as their primary energy source. The East African highland banana (EAHB), a staple for millions in Uganda and most of East Africa's highlands, contains insufficient iron to meet dietary needs.
Tal Cooper +7 more
wiley +1 more source
Magnetic activity and hot Jupiters of young Suns: The weak-line T Tauri stars V819 Tau and V830 Tau [PDF]
, 2015 We report results of a spectropolarimetric and photometric monitoring of the weak-line T Tauri stars (wTTSs) V819 Tau and V830 Tau within the MaTYSSE (Magnetic Topologies of Young Stars and the Survival of close-in giant Exoplanets) programme, involving ...
J. Donati +21 more
semanticscholar +1 more source