Results 131 to 140 of about 11,325,029 (225)

JWST/MIRI Detection of a Carbon-rich Chemistry in the Disk of a Solar Nebula Analog

The Astrophysical Journal
It has been proposed, and confirmed by multiple observations, that disks around low-mass stars display a molecule-rich emission and carbon-rich disk chemistry as compared to their hotter, more massive solar counterparts.
María José Colmenares, Edwin A. Bergin, Colette Salyk, Klaus M. Pontoppidan, Nicole Arulanantham, Jenny Calahan, Andrea Banzatti, Sean Andrews, Geoffrey A. Blake, Fred Ciesla, Joel Green, Feng Long, Michiel Lambrechts, Joan Najita, Ilaria Pascucci, Paola Pinilla, Sebastiaan Krijt, Leon Trapman, the JDISCS Collaboration   +18 more
doaj   +1 more source

T Tauri Disk Lifetime in the Lupus Association

, 2016
International audienceIn a recent study, we derived individual distances for a sample of pre-main sequence stars that define the comoving association of young stars in the Lupus star-forming region.
Ducourant, C., Teixeira, R., Galli, P. A. B., Bertout, C.   +3 more
core   +1 more source

Using the Ca ii Lines in T Tauri Stars to Infer the Abundance of Refractory Elements in the Innermost Disk Region

The Astrophysical Journal
We present a study of the abundance of calcium in the innermost disk of 70 T Tauri stars in the star-forming regions of Chamaeleon I, Lupus, and Orion OB1b. We use calcium as a proxy for the refractory material that reaches the inner disk.
Marbely Micolta, Nuria Calvet, Thanawuth Thanathibodee, Gladis Magris C., Carlo F. Manara, Laura Venuti, Juan Manuel Alcalá, Gregory J. Herczeg   +7 more
doaj   +1 more source

The ODYSSEUS Survey. Using Accretion and Stellar Rotation to Reveal the Star–Disk Connection in T Tauri Stars

The Astrophysical Journal
Classical T Tauri stars (CTTSs) exhibit strong variability over timescales of minutes to decades. However, much theoretical work assumes that CTTSs are in stable spin states.
Caeley V. Pittman, Catherine C. Espaillat, Zhaohuan Zhu, Thanawuth Thanathibodee, Connor E. Robinson, Nuria Calvet, Ágnes Kóspál   +6 more
doaj   +1 more source

Measuring the density structure of an accretion hot spot. [PDF]

Nature, 2021
Espaillat CC, Robinson CE, Romanova MM, Thanathibodee T, Wendeborn J, Calvet N, Reynolds M, Muzerolle J.   +7 more
europepmc   +1 more source

Four-year observations of T Tauri with adaptive optics

, 1999
We report here on a series of adaptive optics observations of T Tauri made from Dec. 1993 to Nov. 1997. Observations show an arc-like structure extending toward north and north-west.
J. E. Graves, M. J. Northcott, J. P. Veran, Roddier Roddier, F. Roddier, L. Close   +5 more
core  

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

Análisis comparativo de los indicadores de rotación estelar en una muestra de estrellas T-Tauri y post T-Tauri

, 2012
En esta tesis se describen los procesos de medición de dos indicadores rotacionales como la velocidad ecuatorial proyectada vsini usando el método de correlación cruzada, en espectros FEROS (The Fiber-fed Extended Range Optical Spectrograph) obtenidos de
Rodríguez Gómez, Jenny Marcela
core  

Magnetospheric accretion in the intermediate-mass T Tauri Star HQ Tau

, 2019
International audienceMagnetospheric accretion is a main interaction process between Classical T Tauri stars (CTTSs) and their inner disk. Understanding this process is therefore crucial to characterize star-disk interactions.
Pouilly, K., Bouvier, J., Grankin, K., Folsom, C., Alencar, S. H. P., Rebull, L., Alecian, Evelyne, Donati, J.-F., Cody, A.-M.   +8 more
core  

Potential sublimating exocomets around the young star PDS 70. [PDF]

Nat Commun
Novais A, Hoeijmakers HJ, Stockwell Murphy A, Prinoth B, Johansen A, Jaworska K, Ghezzi L.   +6 more
europepmc   +1 more source