Results 61 to 70 of about 7,215 (204)

Observational clues to the physics at the magnetosphere in young stellar objects

EPJ Web of Conferences, 2014
Classical T Tauri stars offer an excellent laboratory to study the accretion process and star-disk interaction, which define the transfer of mass and angular momentum in the system. The interaction takes place very close to the star, in a region of about
Alencar Silvia H. P.
doaj   +1 more source

Estimation of Stellar Parameters and Mass Accretion Rate of Classical T Tauri Stars from LAMOST DR6 [PDF]

, 2023
S. Nidhi, Blesson Mathew, B. Shridharan, Suman Bhattacharyya, Edwin Das, Sreeja S. Kartha   +5 more
openalex   +1 more source

Ecological Processes Shaping Marine Microbial Assemblages Diverge Between Equatorial and Temperate Time‐Series

Molecular Ecology, Volume 35, Issue 2, January 2026.
ABSTRACT Marine microbial communities are structured by a complex interplay of deterministic and stochastic processes, yet how these vary across latitudes remains poorly understood. Most long‐term microbial observatories are restricted to temperate regions, limiting our ability to assess latitudinal contrasts in microbial dynamics.
Pedro C. Junger, Vinicius S. Kavagutti, Ina M. Deutschmann, Carlota R. Gazulla, Paula Huber, Maiara Menezes, Rodolfo Paranhos, André M. Amado, Isabel Ferrera, Janaina Rigonato, Samuel Chaffron, Josep M. Gasol, Ramiro Logares, Hugo Sarmento   +13 more
wiley   +1 more source

Rotational Velocities and Radii Estimates of Low-mass Pre-main-sequence Stars in NGC 2264

The Astrophysical Journal
Investigating the angular momentum evolution of pre-main-sequence (PMS) stars provides important insight into the interactions between Sun-like stars and their protoplanetary disks, and the timescales that govern disk dissipation and planet formation. We
Laurin M. Gray, Katherine L. Rhode, Catrina M. Hamilton-Drager, Tiffany Picard, Luisa M. Rebull   +4 more
doaj   +1 more source

CSI 2264: Accretion process in classical T Tauri stars in the young cluster NGC 2264 [PDF]

, 2016
Context. NGC 2264 is a young stellar cluster (~3 Myr) with hundreds of low-mass accreting stars that allow a detailed analysis of the accretion process taking place in the pre-main sequence. Aims.
Alencar, S. H. P., Bouvier, J., Cody, A. M., Flaccomio, E., Fűrész, G., Gameiro, J. F., Guimarães, M. M., Hillenbrand, L., McGinnis, P. T., Micela, G., Rebull, L., Sousa, A. P., Stauffer, J., Teixeira, P. S., Venuti, L.   +14 more
core   +5 more sources

Ethical mediation: Navigating research ethics and frictions in overseas fieldwork

Area, Volume 57, Issue 4, December 2025.
Short Abstract This paper problematises the application of UK‐based research ethics policy for overseas fieldwork. It draws on the fieldwork experiences of two researchers affiliated with UK universities and conducting fieldwork overseas in their home country.
Sandra Hiari, Maiss Razem
wiley   +1 more source

Variable X-Ray Emission of the Planet Hosting T Tauri Star CI Tau

The Astronomical Journal
We report results of Chandra X-ray observations of CI Tau, a young magnetically active classical T Tauri star for which previous studies have reported periodic variability attributed to a massive planet in a short-period orbit.
Stephen L. Skinner, Manuel Güdel
doaj   +1 more source

X-Ray Observation on the Monoceros R2 Star-Forming Region with the Chandra ACIS-I Array

, 2003
We report on the results of the Chandra observation on the central region of the Monoceros R2 cloud (Mon R2), a high-mass star-forming region (SFR). With a deep exposure of 100 ks, we detected 368 X-ray sources, 80% of which were identified with the NIR ...
Imanishi, Kensuke, Koyama, Katsuji, Nakajima, Hiroshi, Takagi, Shin-ichiro, Tsujimoto, Masahiro   +4 more
core   +1 more source

A Critique of Current Magnetic-Accretion Models for Classical T-Tauri Stars [PDF]

, 1997
Current magnetic-accretion models for classical T-Tauri stars rely on a strong, dipolar magnetic field of stellar origin to funnel the disk material onto the star, and assume a steady-state. In this paper, I critically examine the physical basis of these
Bouvier J., Brown A., Cowling T. G., Haro G., H., Hodgkin S. T., Johnstone R. M., Johnstone R. M., Joncour I., Konigl A., Lynden-Bell D., Pedro N. Safier, Preibisch T., Rosner R., Sakurai T., Schussler M., White S. M., Yamauchi S.   +16 more
core   +3 more sources

The magnetosphere of the close accreting PMS binary V4046 Sgr

EPJ Web of Conferences, 2014
V4046 Sagittarii AB is a close short-period classical T Tauri binary. It is a circularised and synchronised system accreting from a circumbinary disk.
Gregory S. G., Holzwarth V. R., Donati J.-F., Hussain G. A. J., Montmerle T., Alecian E., Alencar S. H. P., Argiroffi C., Audard M., Bouvier J., Damiani F., Güdel M., Huenemoerder D. P., Kastner J. H., Maggio A., Sacco G. G., Wade G. A.   +16 more
doaj   +1 more source