Results 31 to 40 of about 160,430 (344)

DYNAMICAL EVIDENCE FOR A MAGNETOCENTRIFUGAL WIND FROM A 20 M☉ BINARY YOUNG STELLAR OBJECT [PDF]

open access: yes, 2013
In Orion BN/KL, proper motions of λ7 mm vibrationally excited SiO masers trace the rotation of a nearly edge-on disk and a bipolar wide-angle outflow 10–100 AU from radio source I, a binary young stellar object of ∼20 M☉.
L. Greenhill   +4 more
semanticscholar   +1 more source

Discovery of an Unusual Dwarf Galaxy in the Outskirts of the Milky Way [PDF]

open access: yes, 2007
In this Letter, we announce the discovery of a new dwarf galaxy, Leo T, in the Local Group. It was found as a stellar overdensity in the Sloan Digital Sky Survey Data Release 5 (SDSS DR5).
Barentine, J. C.   +26 more
core   +2 more sources

The AKARI Far-Infrared Surveyor young stellar object catalog [PDF]

open access: yes, 2013
We demonstrate the use of the AKARI all-sky survey photometric data in the study of galactic star formation. Our aim was to select young stellar objects (YSOs) in the AKARI Far-Infrared Surveyor (FIS) Bright Source Catalogue.
L. Tóth   +8 more
semanticscholar   +1 more source

Star/disk interaction and angular momentum evolution model for solar-like stars

open access: yesEPJ Web of Conferences, 2014
The magnetic field in young stellar object is undoubtedly the most important component when one dealing with the angular momentum evolution. It controls this latter one from the pre-main sequence, during the so-called disk locking phase where the stars ...
Gallet Florian
doaj   +1 more source

LBT/LUCIFER near-infrared spectroscopy of PV Cephei - An outbursting young stellar object with an asymmetric jet [PDF]

open access: yes, 2013
Context. Young stellar objects (YSOs) occasionally experience enhanced accretion events, the nature of which is still poorly understood. The discovery of various embedded outbursting YSOs has recently questioned the classical definition of EXors and ...
A. C. O. Garatti   +6 more
semanticscholar   +1 more source

VVV-WIT-12 and Its Fashionable Nebula: A 4 yr Long-period Young Stellar Object with a Light Echo?

open access: yesThe Astrophysical Journal Letters, 2023
We report the serendipitous discovery of VVV-WIT-12, an unusual variable source that seems to induce variability in its surrounding nebula. The source belongs to the rare objects that we call WITs (short for What Is This?) discovered within the VISTA ...
Roberto K. Saito   +9 more
doaj   +1 more source

ISAAC/VLT observations of a lensed galaxy at z=10.0 [PDF]

open access: yes, 2004
We report the first likely spectroscopic confirmation of a z 10.0 galaxy from our ongoing search for distant galaxies with ISAAC/VLT. Galaxy candidates at z >~ 7 are selected from ultra-deep JHKs images in the core of gravitational lensing clusters for ...
Borgne, J. -F. Le   +4 more
core   +7 more sources

A Perspective from Extinct Radionuclides on a Young Stellar Object: The Sun and Its Accretion Disk [PDF]

open access: yes, 2011
Meteorites, which are remnants of solar system formation, provide a direct glimpse into the dynamics and evolution of a young stellar object (YSO), namely our Sun.
N. Dauphas, M. Chaussidon
semanticscholar   +1 more source

Mid-infrared interferometry of massive young stellar objects. I. VLTI and Subaru observations of the enigmatic object M8E-IR [PDF]

open access: yes, 2009
[abridged] Our knowledge of the inner structure of embedded massive young stellar objects is still quite limited. We attempt here to overcome the spatial resolution limitations of conventional thermal infrared imaging.
Chesneau, O.   +12 more
core   +3 more sources

VLBA DETERMINATION OF THE DISTANCE TO NEARBY STAR-FORMING REGIONS. VI. THE DISTANCE TO THE YOUNG STELLAR OBJECT HW 9 IN CEPHEUS A [PDF]

open access: yes, 2011
Using the Very Long Baseline Array (VLBA), we have observed the radio continuum emission from the young stellar object HW 9 in the Cepheus A star-forming region at 10 epochs between 2007 February and 2009 November.
S. Dzib   +4 more
semanticscholar   +1 more source

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