Results 161 to 170 of about 58,260 (304)

Properties of the Winds of T Tauri Stars [PDF]

Symposium - International Astronomical Union, 1997
The properties of Classical T Tauri (TTS) winds - their mass loss rate, temperature, origin, and energetics - are reviewed and interpreted in terms of the most recent observational evidence. TTS winds seem to have their origin in the disk and are powered by accretion. Most TTS have Ṁω ≤ 10–9Mʘ yr–1 and Ṁω/Ṁ ∼ 0.1, with T ∼ 104K.
openaire   +2 more sources

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

Ionization and heating by X-rays and cosmic rays*

EPJ Web of Conferences, 2015
High-energy radiation from the central T Tauri and protostars plays an important role in shaping protoplanetary disks and influences their evolution. Such radiation, in particular X-rays and extreme-ultraviolet (EUV) radiation, is predominantly generated
Güdel Manuel
doaj   +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

Cold CO gas in the envelopes of FU Orionis-type young eruptive stars

, 2017
FUors are young stellar objects experiencing large optical outbursts due to highly enhanced accretion from the circumstellar disk onto the star. FUors are often surrounded by massive envelopes, which play a significant role in the outburst mechanism ...
Csengeri, T., Güsten, R., Henning, Th., Kóspál, Á., Moór, A., Ábrahám, P.   +5 more
core   +1 more source

Detection of Quiescent Molecular Hydrogen Gas in the Circumstellar Disk of a Classical T Tauri Star [PDF]

, 2000
David A. Weintraub, Joel H. Kastner, Jeffrey S. Bary   +2 more
openalex   +1 more source

Optical Variability of the T Tauri Star HH 30 IRS [PDF]

, 2000
Kenneth Wood, S. J. Wolk, K. Z. Stanek, George Leussis, Keivan G. Stassun, M. J. Wolff, B. A. Whitney   +6 more
openalex   +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 T Tauri star RX J1608.6-3922 -not an eclipsing binary but a spotted single star [PDF]

, 2001
V. Joergens, E. W. Guenther, R. Neuhäuser, M. Fernández, Jyotsna Vijapurkar   +4 more
openalex   +1 more source

Mass ratios of the components in T Tauri binary systems and implications for multiple star formation [PDF]

, 2001
J. Woitas, S. Wolf, R. Köhler
openalex   +1 more source