Chemical Survey toward Young Stellar Objects in the Perseus Molecular Cloud Complex [PDF]
Astrophysical Journal Supplement Series, 2018 The chemical diversity of gas in low-mass protostellar cores is widely recognized. In order to explore the origin of this diversity, a survey of chemical composition toward 36 Class 0/I protostars in the Perseus molecular cloud complex, which are ...
A. Higuchi +14 more
semanticscholar +1 more source
X-shooter spectroscopy of young stellar objects in Lupus - Atmospheric parameters, membership, and activity diagnostics [PDF]
, 2017 A homogeneous determination of basic stellar parameters of young stellar object (YSO) candidates is needed to confirm their evolutionary stage, membership to star forming regions (SFRs), and to get reliable values of the quantities related to ...
A. Frasca +6 more
semanticscholar +1 more source
The Nature of Blue Stars with Mid-infrared Excesses in the Large Magellanic Cloud
The Astrophysical Journal Supplement Series, 2023 We present low-resolution optical spectra and classifications of 92 blue objects with mid-infrared excesses in the Large Magellanic Cloud. The majority of these objects were selected with the criteria of U − B < 0 and V < 17 from the potential young ...
Ryoko Ishioka +5 more
doaj +1 more source
A Disk Census for Young Brown Dwarfs [PDF]
, 2003 Recent surveys have identified sub-stellar objects down to planetary masses in nearby star-forming regions. Reliable determination of the disk frequency in young brown dwarfs is of paramount importance to understanding their origin.
Armitage P. J. +8 more
core +4 more sources
Resolved 24.5 micron emission from massive young stellar objects [PDF]
, 2006 Massive young stellar objects (MYSO) are surrounded by massive dusty envelopes. Our aim is to establish their density structure on scales of ~1000 AU, i.e.
de Wit, W. J. +10 more
core +3 more sources
Saving Early Disk Formation of Young Stellar Objects from the Magnetic Braking Catastrophe [PDF]
, 2018 Previous observations and ideal magneto-hydrodynamic (MHD) simulations have reported that magnetic fields aligned with the rotation axis, often the bipolar outflow direction, in the youngest protostellar systems prevent a rotationally supported disk from
W. Kwon +13 more
semanticscholar +1 more source
The SEEDS High-Contrast Imaging Survey of Exoplanets Around Young Stellar Objects [PDF]
, 2016 We present high-contrast observations of 68 young stellar objects (YSOs) that have been explored as part of the Strategic Exploration of Exoplanets and Disks with Subaru (SEEDS) survey on the Subaru telescope. Our targets are very young (
T. Uyama +51 more
semanticscholar +1 more source
Apparent Disk-mass Reduction and Planetisimal Formation in GravitationallyUnstable Disks in Class 0/I Young Stellar Objects [PDF]
, 2016 We investigate the dust structure of gravitationally unstable disks undergoing mass accretion from the envelope, envisioning its application to Class 0/I young stellar objects (YSOs).
Y. Tsukamoto, S. Okuzumi, A. Kataoka
semanticscholar +1 more source
Burst occurrence in young massive stellar objects [PDF]
Monthly notices of the Royal Astronomical Society, 2018 Episodic accretion-driven outbursts are an extreme manifestation of accretion variability. It has been proposed that the development of gravitational instabilities in the proto-circumstellar medium of massive young stellar objects (MYSOs) can lead to ...
M. M.-A. +25 more
semanticscholar +1 more source
Salt-bearing Disk Candidates around High-mass Young Stellar Objects
The Astrophysical Journal, 2023 Molecular lines tracing the orbital motion of gas in a well-defined disk are valuable tools for inferring both the properties of the disk and the star it surrounds. Lines that arise only from a disk, and not also from the surrounding molecular cloud core
Adam Ginsburg +8 more
doaj +1 more source