Results 61 to 70 of about 46,048 (306)
Stellar energetic particle ionization in protoplanetary disks around T Tauri stars [PDF]
, 2017 Context. Anomalies in the abundance measurements of short lived radionuclides in meteorites indicate that the protosolar nebulae was irradiated by a large number of energetic particles ( E ≳ 10 MeV).
C. Rab +6 more
semanticscholar +1 more source
UVES spectra of young brown dwarfs in Cha I: radial and rotational velocities [PDF]
, 2001 Based on high-resolution UVES spectra we found that the radial velocity (RV) dispersion of nine of twelve known young bona fide and candidate brown dwarfs in the Cha I dark cloud is 2.0 km/s, i.e.
Balthasar +12 more
core +2 more sources
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
Discovery of a New Molecular Bubble–Outflow Structure in the Taurus B18 Cloud
The Astrophysical Journal, 2023 Star formation can produce bubbles and outflows, as a result of stellar feedback. Outflows and bubbles inject momentum and energy into the surrounding interstellar medium, and so are related to the overall energy balance of the molecular cloud. Molecular
Yan Duan +7 more
doaj +1 more source
MAGNETOSPHERIC ACCRETION IN T TAURI STARS: OBSERVATIONAL TEST
Odessa Astronomical Publications, 2017 In the classical T Tauri stars (CTTS) the magnetic field plays an important role in the interaction between the star and the accretion disk. In 1996-2000 we have carried out an extensive spectroscopic and photometric monitoring of the extremly active ...
P. P. Petrov
doaj +1 more source
Discovery of Seven T Tauri Stars and a Brown Dwarf Candidatein the Nearby TW Hydrae Association [PDF]
, 1998 We report the discovery of five T Tauri star systems, two of which are resolved binaries, in the vicinity of the nearest known region of recent star formation: the TW Hydrae Association.
R. Webb +7 more
semanticscholar +1 more source
A Three Micron Survey of the Chamaeleon I Dark Cloud [PDF]
, 2001 We describe an L-band photometric survey of 0.5 square deg of the Cha I dark cloud. The survey has a completeness limit of L < 11.0. Our survey detects 124 sources, including all known pre-main sequence stars with L < 11.
Alcala J. M. +14 more
core +2 more sources
Observational Tests of Magnetospheric Accretion Models in Young Stars
EPJ Web of Conferences, 2014 Magnetically controlled accretion of disk material onto the surface of Classical T Tauri stars is the dominant paradigm in our understanding of how these young stars interact with their surrounding disks.
Johns–Krull Christopher M. +1 more
doaj +1 more source
A Population of Dipper Stars from the Transiting Exoplanet Survey Satellite Mission
The Astrophysical Journal Supplement Series, 2022 Dipper stars are a classification of young stellar objects that exhibit dimming variability in their light curves, dropping in brightness by 10%–50%, likely induced by occultations due to circumstellar disk material.
Benjamin K. Capistrant +14 more
doaj +1 more source
Are Both Stars in a Classic T Tauri Binary Classic T Tauri Stars?
The Astrophysical Journal, 1997 Large near-IR color excesses and emission-line spectra indicate the presence of optically thick circumstellar accretion disks and active boundary layers in young stars. We investigate whether this classic T Tauri (TT) behavior is found in one or both members of a binary system previously identified as a TT on the basis of the unresolved light.
M. Simon, M. Simon, L. Prato, L. Prato
openaire +2 more sources