Results 61 to 70 of about 14,826 (213)
A Predicted Great Dimming of T Tauri: Has it Begun?
The Astronomical JournalThe optical star in the T Tauri triple system is the prototype of young Sun-like stars in our galaxy. This complex and dynamic system has evidence for misaligned disks and outflows, and molecular material in a circumbinary ring that obscures the southern
Tracy L. Beck
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The Astrophysical Journal, 2022 Accurate disk mass measurements are necessary to constrain disk evolution and the timescale of planet formation, but such measurements are difficult to make and are very dependent on assumptions. Here, we look at the assumption that the disk is optically
Z. Xin +4 more
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Disappearing race in criminology: Stigma, race, and loss
Criminology, EarlyView.Abstract This article is based on Katheryn Russell‐Brown's 2025 presidential address at the 85th annual meeting of the American Society of Criminology, held in Washington, D.C. The article begins with an overview of the Author's approach to research and the highlights of her scholarly contributions.
Katheryn Russell‐Brown
wiley +1 more source
Are Both Stars in a Classic T Tauri Binary Classic T Tauri Stars?
The Astrophysical Journal, 1997 Large near-IR color excesses and emission-line spectra indicate the presence of optically thick circumstellar accretion disks and active boundary layers in young stars. We investigate whether this classic T Tauri (TT) behavior is found in one or both members of a binary system previously identified as a TT on the basis of the unresolved light.
L. Prato, M. Simon
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Actvity on T Tauri Stars [PDF]
International Astronomical Union Colloquium, 1995 We have made a detailed investigation of the short-term variability of the classical T Tauri star BP Tauri in UBVRI. Data were collected from the Wendelstein Observatory in 1991, 1992 and 1993 with time resolutions down to 1 sec. The 0.8m telescope was equipped with a fiber-fed fifteen channel high-speed photometer (Barwig et al. 1987).
Erik Gullbring +3 more
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Star Spot Induced Radial Velocity Variability in LkCa 19
, 2007 We describe a new radial velocity survey of T Tauri stars and present the first results. Our search is motivated by an interest in detecting massive young planets, as well as investigating the origin of the brown dwarf desert.
Bouvier J. +9 more
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T Tauri variability in the context of the beat-frequency model [PDF]
, 1995 We examine the implications of a beat frequency modulated model of T Tauri accretion. In particular we show that measurements of the variability of accretion generated lines can be used in conjunction with existing photometry to obtain a measurement of ...
Bonnell, I. A. +2 more
core +2 more sources
Spectacle and Spy Stories: The 1954 Royal Commission on Espionage
Australian Journal of Politics &History, EarlyView.ABSTRACT The Menzies government's 1954 royal commission, established to investigate Soviet espionage in Australia, is well known as the backdrop to the Labor Party split. It saw opposition leader H.V. Evatt's demise and ushered in an almost 20‐year period of Liberal Party governance.
Ebony Nilsson
wiley +1 more source
Stellar wind flows in T Tauri stars [PDF]
Symposium - International Astronomical Union, 1987 Following the successful modelling of the wind from RU Lupi using data at moderate and high dispersion we report on similar observations of other T Tauri stars where the general pattern of the wind, as deduced from the widths of the emission lines of the various species, seems to be similar.
C. Sá, M. T. V. T. Lago, M. V. Penston
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The Astrophysical JournalMagnetospheric accretion is a key process that shapes the inner disks of T Tauri stars, controlling mass and angular momentum evolution. It produces strong ultraviolet and optical emission that irradiates the planet-forming environment.
Caeley V. Pittman +22 more
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