Results 61 to 70 of about 45,569 (296)
ON THE SPECTRAL AND PHOTOMETRIC ACTIVITY IN YOUNG STARS
Odessa Astronomical Publications, 2017 Results of long time homogenous medium resolution spectral observations of classic T Tauri type stars DI Cep, T Tau and GW Ori obtained during 1972-1990 are analyzed.
N. Z. Ismailov
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
A Magnetically Driven Disk Wind in the Inner Disk of PDS 70
The Astrophysical Journal, 2023 PDS 70 is so far the only young disk where multiple planets have been detected by direct imaging. The disk has a large cavity when seen at submillimeter and near-infrared wavelengths, which hosts two massive planets. This makes PDS 70 the ideal target to
Justyn Campbell-White +12 more
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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 deep XMM-Newton X-ray observation of the Chamaeleon I dark cloud [PDF]
, 2006 Methods. The northern-eastern fringe of the Chameleon I dark cloud was observed with XMM-Newton, revisiting a region observed with ROSAT 15 years ago. Centered on the extended X-ray source CHXR49 we are able to resolve it into three major contributing ...
Alcalá +27 more
core +3 more sources
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
The Magnetic Fields of Classical T Tauri Stars [PDF]
, 2007 We report new magnetic field measurements for 14 classical T Tauri stars (CTTSs). We combine these data with one previous field determination in order to compare our observed field strengths with the field strengths predicted by magnetospheric accretion ...
C. Johns–Krull
semanticscholar +1 more source
Dynamical Masses of T Tauri Stars and Calibration of Pre-Main-Sequence Evolution [PDF]
, 2000 We have used the high sensitivity and resolution of the IRAM interferometer to produce subarcsecond 12CO J = 2-1 images of nine protoplanetary disks surrounding T Tauri stars in the Taurus-Auriga cloud (seven singles and two binaries).
M. Simon, A. Dutrey, S. Guilloteau
semanticscholar +1 more source
Pre-main sequence variable stars in young open cluster NGC 1893
, 2012 We present results of multi-epoch (fourteen nights during 2007-2010) $V$-band photometry of the cluster NGC 1893 region to identify photometric variable stars in the cluster. The study identified a total of 53 stars showing photometric variability.
A. K. Pandey +55 more
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The Astrophysical Journal, 2022 Accurate disk mass measurements are necessary to constrain disk evolution and the timescale of planet formation, but such measurements are difficult to make and are very dependent on assumptions. Here, we look at the assumption that the disk is optically
Z. Xin +4 more
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