Results 21 to 30 of about 11,325,029 (225)
Sodium ionization in T-tauri stars [PDF]
International Astronomical Union Colloquium, 1989 We present the results of a study of the sodium ionization and excitation in the winds of low-luminosity, pre-main-sequence stars. Line profiles for the Nal doublet at 5990,5986 Åare discussed and compared with the observations for those T Tauri stars with P-Cygni profiles.
A. Natta, C. Giovanardi
openaire +1 more source
2M1155-79 (= T chamaeleontis B): A Low-mass, wide-separation companion to the nearby, "old" T Tauri star T chamaeleontis [PDF]
, 2016 The early-K star T Cha, a member of the nearby (D 100pc) ε Cha Association, is a relatively "old" (age 7Myr) T Tauri star that is still sporadically accreting from an orbiting disk whose inner regions are now evidently being cleared by a close ...
Bessell, Michael +4 more
core +1 more source
Observations of suspected low-mass ost-T Tauri stars and their evolutionary status [PDF]
, 1983 We present the results of a study of five X-ray discovered weak emission pre-main-sequence stars in the Taurus-Auriga star formation complex. All are of spectral type K7-M0, and about 1-2 mag above the main sequence.
Mundt, Reinhard +5 more
core +1 more source
Mass accretion on to T Tauri stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2006 17 pages, 10 figures, accepted for publication by ...
Gregory, S. G. +3 more
openaire +4 more sources
Kinematics of T Tauri stars in nearby star forming regions [PDF]
, 1999 The kinematics of T Tauri stars in the nearby star forming regions Taurus-Auriga, Chamaeleon, Lupus and Scorpius-Centaurus is studied using proper motions from the Hipparcos, PPM, ACT, TRC and STARNET proper motion catalogues.
Frink, Sabine
core +1 more source
Astronomy & Astrophysics, 2005 Using the UVES echelle spectrograph at the ESO VLT we obtained two-dimensional high-resolution (R = 50 000) spectra of the edge-on disk objects HH30*, HK Tau B, and HV Tau C. For comparison purposes we also observed with the same equipment both the classical T Tauri star HL Tau and the active late-type star LDN 1551-9. The spectra of all three observed
Appenzeller, Immo +2 more
openaire +3 more sources
Searching for Magnetospheres around Herbig Ae/Be Stars
Universe, 2021 We describe four different approaches for the detection of magnetospheric accretion among Herbig Ae/Be stars with accretion disks. Studies of several unique objects have been carried out.
Mikhail Pogodin +8 more
doaj +1 more source
Oscillations of the Boundary Layer and High-frequency QPOs
EPJ Web of Conferences, 2014 We observed persistent high-frequency oscillations of the boundary layer near an accreting, weakly-magnetized star in global 3D MHD simulations. The tilted dipole magnetic field is not strong enough to open a gap between the star and the disk.
Blinova A. A. +2 more
doaj +1 more source
LIGHT CURVE TYPES OF CLASSIC T TAURI STARS
Odessa Astronomical Publications, 2016 By using the archive photometric data’s obtained for a long time intervals we have carried out a master light curves of 28 classical T Tauri type stars. For the physical character of variability mainly 5 type light curves can be separated.
N. Z. Ismailov, H. N. Adygezalzade
doaj +1 more source
First spectroscopically confirmed discovery of an extragalactic T Tauri star
, 2001 We report the first spectroscopic discovery of an extragalactic bona-fide T Tauri star. The object, LTS J054427-692659, is a low-mass, late-type star located within the LMC dark cloud Hodge II 139.
J. H. M. M. Schmitt +2 more
core +1 more source