Results 131 to 140 of about 45,569 (296)
CSI 2264: Accretion process in classical T Tauri stars in the young cluster NGC 2264 [PDF]
Our goal is to relate the photometric and spectroscopic variability of classical T Tauri stars, of the star-forming cluster NGC 2264, to the physical processes acting in the stellar and circumstellar environment, within a few stellar radii from the star.
A. Sousa+14 more
semanticscholar +1 more source
Korea's Solidarity with the Global South (to Which It Didn't and Doesn't Belong)*
The Global South is a relational and collective identity of a group of states suffering colonialism and sharing particular material and normative traits. Drawing on an exploration of the historical path of Korea's Southern identity, or the lack thereof, this article explores the origins of Korea's diplomatic narrative of solidarity as a Southern donor.
Suweon Kim
wiley +1 more source
Out of Proportion: Israel's Paradox In China's Middle Eastern Policy
Abstract After Hamas's brutal October 7, 2023, attack on Israel, China appeared to side with the Islamists, as if its relationship with the Jewish state had deteriorated beyond repair. This was accompanied by an officially inspired wave of antisemitism and votes against Israel at the United Nations.
Yitzhak Shichor
wiley +1 more source
Dynamical investigations of the multiple stars
Two multiple stars - the quadruple star - Bootis (ADS 9173) and the triple star T Taury were investigated. The visual double star - Bootiswas studied on the basis of the Pulkovo 26-inch refractor observations 1982-2013.
Kiyaeva Olga V., Zhuchkov Roman Ya.
doaj +1 more source
Rotational and radial velocities of T Tauri stars
Rotational and radial velocities are reported for 50 T Tauri stars in the Taurus-Auriga and Orion complexes. The results indicate that most T Tauri stars rotate at rates an order of magnitude or more below breakup velocity, with high-mass stars ...
L. Hartmann+3 more
semanticscholar +1 more source
Mass accretion rates in self-regulated disks of T Tauri stars
We have studied numerically the evolution of protostellar disks around intermediate and upper mass T Tauri stars (0.25 M_sun < M_st < 3.0 M_sun) that have formed self-consistently from the collapse of molecular cloud cores.
Basu, Shantanu, Vorobyov, E. I.
core +1 more source
Low mass T Tauri and young brown dwarf candidates in the Chamaeleon II dark cloud found by DENIS [PDF]
We define a sample designed to select low-mass T Tauri stars and young brown dwarfs using DENIS data in the Chamaeleon II molecular cloud. We use a star count method to construct an extinction map of the Chamaeleon II cloud.
Alcalá+30 more
core +3 more sources
Specific cyanobacteria, primarily Synechococcus, and other microbes show strong seasonal enrichment in San Diego Bay. Circulation, higher temperatures, light and other altered environmental conditions create a unique zone for microbial evolution and diversification. Amplicon sequence data and isolates provide evidence of these processes.
Katie J. Harding+7 more
wiley +1 more source
The enviroments of T Tauri stars
The environments of T Tauri stars are probably determined by the interaction of a stellar wind with matter which is falling toward a newly formed star. As shown by Ulrich, the steady infall of cool gas with angular momentum toward the star leads to a density distribution with rhoproportionalr/sup -1/2/ inside a radius r/sub d/ and rhoproportionalr/sup -
openaire +2 more sources
Observations and Modeling of the Inner Disk Region of T Tauri Stars [PDF]
We present observations of four T Tauri stars using long baseline infrared interferometry from the Palomar Testbed Interferometer. The target sources, T Tau N, SU Aur, RY Tau, and DR Tau, are all known to be surrounded by dusty circumstellar disks.
R. Akeson+9 more
semanticscholar +1 more source