Outbursts of young stellar objects [PDF]
We argue that the outbursts of the FU Orionis stars occur on timescales which are much longer than expected from the standard disc instability model with _{c} \gtrsim 10^{-3}. The outburst, recurrence, and rise times are consistent with the idea that the accretion disc in these objects is truncated at a radius R_{i} \sim 40 \rsun. In agreement with a
Matthews, OM, Speith, R, Wynn, GA
openaire +5 more sources
Kinematics of Young Stellar Objects under Various Stellar Feedback
Based on the Gaia Data Release 3 and APOGEE data sets, we investigate the kinematic differences between young stellar objects (YSOs) and their parent clouds in five nearby star-forming regions.
Longhui Yang +8 more
doaj +3 more sources
CO Outflows from Young Stellar Objects [PDF]
We have mapped the CO J = 1-0 emission from molecular outflows associated with six young stellar systems using the BIMA array. The systems are all relatively nearby, have low-luminosity, and range from Class 0 to Class II sources. The CO outflows in these systems are complicated, showing multipolar structures, multiple cavities, and asymmetric lobes ...
Chin‐Fei Lee +3 more
openalex +2 more sources
YSOVAR: mid-infrared variability of young stellar objects and their disks in the cluster IRAS 20050+2720 [PDF]
We present a time-variability study of young stellar objects (YSOs) in the cluster IRAS 20050+2720, performed at 3.6 and 4.5 μm with the Spitzer Space Telescope; this study is part of the Young Stellar Object VARiability (YSOVAR) project.
Katja Poppenhaeger +14 more
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A CLASSIFICATION SCHEME FOR YOUNG STELLAR OBJECTS USING THEWIDE-FIELD INFRARED SURVEY EXPLORERAllWISE CATALOG: REVEALING LOW-DENSITY STAR FORMATION IN THE OUTER GALAXY [PDF]
We present an assessment of the performance of WISE and the AllWISE data release for a section of the Galactic Plane. We lay out an approach to increasing the reliability of point-source photometry extracted from the AllWISE catalog in Galactic Plane ...
X. P. Koenig, D. T. Leisawitz
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Complex organic molecules in organic-poor massive young stellar objects [PDF]
Massive young stellar objects (MYSOs) with hot cores are classic sources of complex organic molecules. The origins of these molecules in such sources, as well as the small- and large-scale differentiation between nitrogen- and oxygen-bearing complex ...
Edith C. Fayolle +4 more
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X-shooter spectroscopy of young stellar objects. IV. Accretion in low-mass stars and substellar objects in Lupus [PDF]
We present X-Shooter/VLT observations of a sample of 36 accreting low-mass stellar and sub-stellar objects (YSOs) in the Lupus star forming region, spanning a range in mass from ~0.03 to ~1.2Msun, but mostly with 0.1Msun < Mstar < 0.5Msun.
J. Alcal'a +15 more
semanticscholar +3 more sources
X-shooter spectroscopy of young stellar objects [PDF]
Context. The lack of knowledge of photospheric parameters and the level of chromospheric activity in young low-mass pre-main sequence stars introduces uncertainties when measuring mass accretion rates in accreting (Class II) Young Stellar Objects.
B. Stelzer +9 more
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Infrared Nebulae around Young Stellar Objects [PDF]
79 pages, 33 ...
Connelley, Michael S. +2 more
openaire +2 more sources
X-shooter spectroscopy of young stellar objects in Lupus [PDF]
With the purpose of performing a homogeneous determination of elemental abundances for members of the Lupus T association, we analyzed three chemical elements: lithium, iron, and barium.
K. Biazzo +11 more
semanticscholar +1 more source

