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]

open access: yes, 2015
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)*

open access: yesPacific Focus, Volume 40, Issue 1, Page 125-144, April 2025.
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

open access: yesMiddle East Policy, Volume 32, Issue 1, Page 54-73, Spring 2025.
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

open access: yesOpen Astronomy, 2017
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

open access: yes, 1986
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

open access: yes, 2008
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]

open access: yes, 2001
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

Temporal and Spatial Dynamics of Synechococcus Clade II and Other Microbes in the Eutrophic Subtropical San Diego Bay

open access: yesEnvironmental Microbiology, Volume 27, Issue 2, February 2025.
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

open access: yesThe Astrophysical Journal, 1983
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]

open access: yes, 2004
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

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