Results 161 to 170 of about 57,378 (307)

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

The weak-line T Tauri star V410 Tau in the eyes of SPIRou and TESS

, 2021
B Finociety, J.‐F. Donati, Baptiste Klein   +2 more
openalex   +1 more source

TIC 290061484: A Triply Eclipsing Triple System with the Shortest Known Outer Period of 24.5 Days

The Astrophysical Journal
We have discovered a triply eclipsing triple-star system, TIC 290061484, with the shortest known outer period, P _out , of only 24.5 days. This “eclipses” the previous record set by λ Tauri at 33.02 days, which held for 68 yr.
V. B. Kostov, S. A. Rappaport, T. Borkovits, B. P. Powell, R. Gagliano, M. Omohundro, I. B. Bíró, M. Moe, S. B. Howell, T. Mitnyan, C. A. Clark, M. H. Kristiansen, I. A. Terentev, H. M. Schwengeler, A. Pál, A. Vanderburg   +15 more
doaj   +1 more source

The pre-main sequence binary HK Ori : Spectro-astrometry and EXPORT data

, 2004
In this paper we present multi-epoch observations of the pre-main sequence binary HK Ori. These data have been drawn from the EXPORT database and are complemented by high quality spectro-astrometric data of the system. The spectroscopic data appear to be
Baines, D, Cameron, Andrew Collier, Davies, JK, de Winter, D, Deeg, HJ, Eiroa, C, Ferlet, R, Garzon, F, Grady, CA, Harris, AW, Hoare, MG, Horne, Keith Douglas, Lumsden, SL, Merín, B, Miranda, LF, Montesinos, B, Mora, A, Oudmaijer, RD, Palacios, J, Penny, A, Porter, John M, Quirrenbach, A, Rauer, H, Schneider, J, Solano, E, Wesselius, PR   +25 more
core   +1 more source

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

X‐Ray Spectroscopy of the Nearby, Classical T Tauri Star TW Hydrae [PDF]

, 1999
Joel H. Kastner, David P. Huenemoerder, Norbert S. Schulz, David A. Weintraub   +3 more
openalex   +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

Ionisation of inner T Tauri star discs: effects of in-situ energetic\n particles produced by strong magnetic reconnection events [PDF]

, 2022
V Brunn, Alexandre Marcowith, C. Sauty, M Padovani, Rab C, C Meskini   +5 more
openalex   +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

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