Results 111 to 120 of about 10,538,954 (217)

VLT/MUSE Detection of Accretion/Ejection Associated with the Close Stellar Companion in the HT Lup System

The Astrophysical Journal
The accretion/ejection processes in T Tauri stars are fundamental to their physical evolution, while also impacting the properties and evolution of the circumstellar material at a time when planet formation takes place.
Sebastián Jorquera, Mickaël Bonnefoy, Laura M. Pérez, Gaël Chauvin, Adrian Aguinaga, Catherine Dougados, Rémi Julo, Dorian Demars, Sean M. Andrews, Luca Ricci, Zhaohuan Zhu, Nicolas T. Kurtovic, Nicolás Cuello, Xue-Ning Bai, Til Birnstiel, Cornellis Dullemond, Viviana V. Guzmán   +16 more
doaj   +1 more source

Observable Signatures of Classical T Tauri Stars Accreting in an Unstable Regime

EPJ Web of Conferences, 2014
We discuss key observational signatures of Classical T Tauri stars (CTTSs) accreting through Rayleigh-Taylor instability, which occurs at the interface between an accretion disk and a stellar magnetosphere.
Kurosawa Ryuichi, Romanova M. M.
doaj   +1 more source

Evidence for Dust Depletion in a Misaligned Protoplanetary Disk with JWST

The Astrophysical Journal Letters
Here we report the detection of dust depletion in a misaligned inner disk around UX Tau A using JWST MIRI spectra. Mid-infrared (MIR) continuum “seesaw” variability was detected in this disk by Spitzer and attributed to variable shadows cast on the outer
C. C. Espaillat, T. Thanathibodee, Z. Zhu, I. Rabago, J. Wendeborn, N. Calvet, L. Zamudio-Ruvalcaba, M. Volz, C. Pittman, M. McClure, J. F. Babb, R. Franco-Hernández, E. Macías, M. Reynolds, P.-G. Yan   +14 more
doaj   +1 more source

The lithium abundance of the T Tauri star BP Tauri

The Astrophysical Journal, 1991
The Li abundance of the T Tauri star BP Tau is determined from both the Li I 6707 and 6103 features, using high-accuracy observations and recent model atmospheres. Other work, based solely on analysis of the 6707 line, has found very high Li abundances in T Tauri stars.
openaire   +1 more source

Outflows from the youngest stars are mostly molecular. [PDF]

Nature, 2023
Ray TP, McCaughrean MJ, Caratti O Garatti A, Kavanagh PJ, Justtanont K, van Dishoeck EF, Reitsma M, Beuther H, Francis L, Gieser C, Klaassen P, Perotti G, Tychoniec L, van Gelder M, Colina L, Greve TR, Güdel M, Henning T, Lagage PO, Östlin G, Vandenbussche B, Waelkens C, Wright G.   +22 more
europepmc   +1 more source

Water in the terrestrial planet-forming zone of the PDS 70 disk. [PDF]

Nature, 2023
Perotti G, Christiaens V, Henning T, Tabone B, Waters LBFM, Kamp I, Olofsson G, Grant SL, Gasman D, Bouwman J, Samland M, Franceschi R, van Dishoeck EF, Schwarz K, Güdel M, Lagage PO, Ray TP, Vandenbussche B, Abergel A, Absil O, Arabhavi AM, Argyriou I, Barrado D, Boccaletti A, Caratti O Garatti A, Geers V, Glauser AM, Justannont K, Lahuis F, Mueller M, Nehmé C, Pantin E, Scheithauer S, Waelkens C, Guadarrama R, Jang H, Kanwar J, Morales-Calderón M, Pawellek N, Rodgers-Lee D, Schreiber J, Colina L, Greve TR, Östlin G, Wright G.   +44 more
europepmc   +1 more source

Simultaneous Far-ultraviolet and Near-ultraviolet Observations of T Tauri Stars with UVIT/AstroSat: Probing the Accretion Process in Young Stars

The Astrophysical Journal
We present results from simultaneous far-ultraviolet (FUV) and near-ultraviolet (NUV) observations of T Tauri stars (TTSs) in the Taurus molecular cloud with UVIT/AstroSat. This is the very first UVIT study of TTSs.
Prasanta K. Nayak, Mayank Narang, P. Manoj, Uma Gorti, Annapurni Subramaniam, Nayana George, Chayan Mondal   +6 more
doaj   +1 more source

On a Possible Solution to the Tidal Realignment Problem for Hot Jupiters. [PDF]

Astrophys J, 2021
Anderson KR, Winn JN, Penev K.
europepmc   +1 more source

Can Post T Tauri Stars Be Found? Yes! [PDF]

, 2001
I review the observational challenges of finding post T Tauri stars (PTTS), defined here as low-mass, pre-main-sequence stars with ages of 10(7)-10(8) yr.
Jensen, Eric L.N.
core   +1 more source

The Periastron Passage of T Tauri South B as Viewed by ALMA: Millimeter Flux Variations and Dust Heating Triggered by Orbital Motion

The Astrophysical Journal
We present 225 and 350 GHz imaging of the iconic T Tauri system using the Atacama Large Millimeter submillimeter Array (ALMA). T Tauri is a hierarchical triple system, and the close binary T Tau Sa/Sb underwent periastron passage in 2023 March.
Tracy L. Beck, Stephane Guilloteau, Gail Schaefer, Edwige Chapillon, Anne Dutrey, Emmanuel Di Folco   +5 more
doaj   +1 more source