Results 51 to 60 of about 31,062 (274)
Connection between jets, winds and accretion in T Tauri stars: the X-shooter view [PDF]
, 2017 We have analysed the [OI]6300 A line in a sample of 131 young stars with discs in the Lupus, Chamaeleon and signa Orionis star forming regions, observed with the X-shooter spectrograph at VLT. The stars have mass accretion rates spanning from 10^{-12} to
B. Nisini +8 more
semanticscholar +1 more source
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
The variability of T Tauri stars [PDF]
Symposium - International Astronomical Union, 1990 For many years we have monitored the variability of some bright T Tauri stars with the 0.6 m “Perkin telescope” at Van Vleck Observatory. Collaborators in this endeavor have included several astronomers at the Crimea Astrophysical Observatory, at Capidomonte Observatory, at the U.S. Naval Observatory, and even some sophisticated amateurs.
openaire +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
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
doaj +1 more source
Some resolutions on T Tauri stars [PDF]
Symposium - International Astronomical Union, 1990 This symposium is dedicated to the results of studies of flare stars. The necessity of the detailed analysis of observational data on flare stars follows from the very simple fact, that until now the theory has not found for the answer to the question: why the young stars of low luminosity are flaring.
openaire +1 more source
A Comprehensive Analysis of Rovibrational CO in the Era of JWST
The Astronomical JournalWe present an analysis of CO rovibrational emission lines in the 183 infrared spectra of nearby Class II objects obtained with the NIRSPEC instrument on the Keck II telescope over the past two decades.
D. Annie Dickson-Vandervelde +5 more
doaj +1 more source
The Canary Down the Coalmine: Dagenham, London and Labour Politics
The Political Quarterly, EarlyView.Abstract The history of Dagenham offers unique insights into both the changing composition of the working class and the forces that have reshaped domestic politics throughout the last 100 years, particularly the politics of the British labour movement.
Jon Cruddas
wiley +1 more source
Tests of Disk-locking in T Tauri Stars of the Orion Nebula Cluster
The Astrophysical JournalWe look for specific correlations predicted by magnetospheric accretion models for young stars that assume disk-locking using stellar and accretion parameters derived from low-resolution HST-STIS spectra of 33 T Tauri stars in the Orion Nebula Cluster ...
Margaret A. Mueller +3 more
doaj +1 more source
Gendering Late Ottoman Society and Reconstructing Gender in the Women's Press
Gender &History, EarlyView.ABSTRACT This article analyses the construction of gender differences in the late Ottoman Empire through women's periodicals, which acted as a key medium in the redefinition of gender roles. It examines how new understandings of gender roles emerged amid rapid transformations in traditional societal structures, particularly in the women’s press.
Tuğba Karaman
wiley +1 more source