Results 31 to 40 of about 6,154 (302)

MASS AND LUMINOSITY EVOLUTION OF YOUNG STELLAR OBJECTS [PDF]

The Astrophysical Journal, 2012
To appear in The Astrophysical Journal, Part ...
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A systematic survey for eruptive young stellar objects using mid-infrared photometry [PDF]

, 2013
Accretion in young stellar objects (YSOs) is at least partially episodic, i.e. periods with high accretion rates ('bursts') are interspersed by quiescent phases. These bursts manifest themselves as eruptive variability. Here we presenta systematic survey
Wood, Kenneth, Scholz, Alexander, Froebrich, Dirk   +2 more
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An APEX Study of Molecular Outflows in FUor-type Stars

The Astrophysical Journal, 2023
The FU Orionis–type objects (FUors) are low-mass pre-main-sequence objects that go through a short-lived phase (∼100 yr) of increased mass accretion rate (from 10 ^−8 to 10 ^−4 M _⊙ yr ^−1 ).
Fernando Cruz-Sáenz de Miera, Ágnes Kóspál, Péter Ábrahám, Timea Csengeri, Orsolya Fehér, Rolf Güsten, Thomas Henning   +6 more
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Computation of light scattering in young stellar objects [PDF]

Journal of Quantitative Spectroscopy and Radiative Transfer, 2003
Accepted by The Journal of Quantitative Spectroscopy and Radiative Transfer. Replaced version corrects an error in the definition of the sense of Cpol in the published version and other minor errors found at the proof ...
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THE PALOMAR TRANSIENT FACTORY ORION PROJECT: ECLIPSING BINARIES AND YOUNG STELLAR OBJECTS

, 2011
The Palomar Transient Factory (PTF) Orion project is one of the experiments within the broader PTF survey, a systematic automated exploration of the sky for optical transients.
Mansi M. Kasliwal, Kane, Stephen R., van Eyken, Julian C., Howell, Steve B., Gelino, Dawn M., Surace, Jason A., Steve B. Howell, Hoard, D. W., Shrinivas R. Kulkarni, Plavchan, Peter, Law, Nicholas M., Ciardi, David R., John R. Stauffer, Mattingly, Sean, Stephen R. Kane, S. Bradley Cenko, Kasliwal, Mansi M., Ofek, Eran O., Poznanski, Dovi, Dovi Poznanski, Ramirez, Solange V., Andrew F. Boden, David Levitan, Luisa M. Rebull, Grillmair, Carl J., Akeson, Rachel L., D. W. Hoard, Solange V. Ramírez, Eran O. Ofek, Laher, Russ, Rachel L. Akeson, Peter E. Nugent, David R. Ciardi, Carl J. Grillmair, Joshua S. Bloom, Robert M. Quimby, Nugent, Peter E., Kaspar von Braun, Quimby, Robert M., Cenko, S. Bradley, Russ Laher, Dawn M. Gelino, Rebull, Luisa M., Levitan, David, Boden, Andrew F., von Braun, Kaspar, Beichman, Charles A., Kulkarni, Shrinivas R., Bloom, Joshua S., Jason A. Surace, Charles A. Beichman, Julian C. van Eyken, Nicholas M. Law, Stauffer, John R., Peter Plavchan, Sean Mattingly   +55 more
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Distances to Nearby Molecular Clouds Traced by Young Stars

The Astrophysical Journal Supplement Series, 2023
I present a catalog of distances to 63 molecular clouds located within ∼2.5 kpc of the Sun. The cloud distances are derived based on utilizing the Gaia DR3 parallaxes of the young stellar objects (YSOs). By identifying AllWISE YSO candidates (YSOCs) with
Miaomiao Zhang
doaj   +1 more source

Outflow collimation in young stellar objects [PDF]

Monthly Notices of the Royal Astronomical Society, 1997
In this paper we explore the effect of radiative losses on purely hydrodynamic jet collimation models applicable to Young Stellar Objects (YSOs). In our models aspherical bubbles form from the interaction of a central YSO wind with an aspherical circum-protostellar density distribution.
Mellema, Garrelt, Frank, Adam
openaire   +2 more sources

Magnetic Fields Observed along the East–West Outflow of IRAS 16293-2422

The Astrophysical Journal
Magnetic fields likely play an important role in the formation of young protostars. Multiscale and multiwavelength dust polarization observations can reveal the inferred magnetic field from scales of the cloud to core to protostar.
Frankie J. Encalada, Leslie W. Looney, Giles Novak, Sarah Sadavoy, Erin G. Cox, Fabio Pereira-Santos, Dennis Lee, Rachel Harrison, Kate Pattle   +8 more
doaj   +1 more source

Measurement of the Angular Momenta of Pre-main-sequence Stars: Early Evolution of Slow and Fast Rotators and Empirical Constraints on Spin-down Torque Mechanisms

The Astronomical Journal, 2023
We use TESS full-frame imaging data to investigate the angular momentum evolution of young stars in the Orion Complex. We confirm recent findings that stars with rotation periods faster than 2 days are overwhelmingly binaries, with typical separations of
Marina Kounkel, Keivan G. Stassun, Lynne A. Hillenbrand, Jesús Hernández, Javier Serna, Jason Lee Curtis   +5 more
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Modelling and observations of molecules in discs around young stars [PDF]

, 2013
This thesis contains a study of molecules within circumstellar discs around young stars. Firstly, the chemistry of a disc around a young, Class 0 protostar is modelled.
Ilee, John David
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