Results 91 to 100 of about 239,171 (281)
Molecular Hydrogen in Orion as Observed by the Far Ultraviolet Spectroscopic Explorer
, 2005 Diffuse far-ultraviolet stellar emission scattered by dust grains has been observed in a region near the Orion Nebula. In addition to the scattered stellar continuum, emission and absorption features produced by molecular hydrogen have been identified ...
France, K., McCandliss, S. R.
core +1 more source
Slingshot mechanism for clusters: Gas density regulates star density in the Orion Nebula Cluster (M42) [PDF]
, 2017 We characterize the stellar and gas volume density, potential, and gravitational field profiles in the central $\sim$ 0.5 pc of the Orion Nebula Cluster (ONC), the nearest embedded star cluster (or rather, proto-cluster) hosting massive star formation ...
A. Stutz
semanticscholar +1 more source
A Review of the Migration of Hydrogen From the Planetary to Basin Scale
Journal of Geophysical Research: Solid Earth, Volume 129, Issue 6, June 2024.Abstract The occurrence of natural hydrogen and its sources have been reviewed extensively in the literature over the last few years, with current research across both academia and industry focused on assessing the feasibility of utilizing natural hydrogen as an energy resource.
Bhavik Harish Lodhia +2 more
wiley +1 more source
Argon Abundances in the Solar Neighborhood: Non-LTE Analysis of Orion Association B-type Stars
, 2008 Argon abundances have been derived for a sample of B main-sequence stars in the Orion association. The abundance calculations are based on NLTE metal line-blanketed model atmospheres calculated with the NLTE code TLUSTY and an updated and complete argon ...
Bennett W. R., Jr. +12 more
core +1 more source
Gaia Stellar Kinematics in the Head of the Orion A Cloud: Runaway Stellar Groups and Gravitational Infall [PDF]
, 2019 This work extends previous kinematic studies of young stars in the Head of the Orion A cloud (OMC-1/2/3/4/5). It is based on large samples of infrared, optical, and X-ray selected pre-main sequence stars with reliable radial velocities and Gaia-derived ...
Feigelson, E. D. +3 more
core +2 more sources
Wide binaries in the Orion nebula cluster [PDF]
Monthly Notices of the Royal Astronomical Society, 1999 Using proper motion data for 894 stars in the Orion Nebula Cluster (ONC) compiled by Jones & Walker in 1988, we search for binaries with apparent separations in the range 1000-5000 AU, and find an upper limit of three. Using a Monte Carlo method, we test the consistency of this result with two hypotheses: i) that the cluster contains a binary ...
Aylwyn Scally +2 more
openaire +4 more sources
The catastrophic break‐up of the ureilite parent body: Modeling constraints on the debris size
Meteoritics &Planetary Science, Volume 59, Issue 6, Page 1407-1420, June 2024.Abstract The ureilite parent body (UPB) was, in all likelihood, completely broken apart when hit by another object early in its history and reassembled into daughter bodies. We here present a study tailored to constrain the dimensions of the impact debris produced in the catastrophic disruption.
Andrea Patzer +3 more
wiley +1 more source
SPECTROSCOPIC BINARIES IN THE ORION NEBULA CLUSTER AND NGC 2264 [PDF]
, 2016 We examine the spectroscopic binary population for two massive nearby regions of clustered star formation, the Orion Nebula Cluster (ONC) and NGC 2264, supplementing the data presented by Tobin et al.
M. Kounkel +5 more
semanticscholar +1 more source
Limitations of the modified blackbody fit method for determining molecular cloud properties
Astronomische Nachrichten, Volume 345, Issue 4, May 2024.Abstract Achieving a comprehensive understanding of the star and planet formation process is one of the fundamental tasks of astrophysics, requiring detailed knowledge of the physical conditions during the different phases of this process. During the earliest stages, that is, concerning physical processes in molecular clouds and filaments, the column ...
Niko Zielinski, Sebastian Wolf
wiley +1 more source
Large-scale Wind-driven Structures in the Orion Nebula
The Astronomical JournalA study of [C ii ] 158 μ m and H i 21 cm spectroscopic images plus high-velocity-resolution optical and ultraviolet spectra has shown the structure of the Orion Nebula to be different from that found from the study of those data separately.
C. R. O’Dell, N. P. Abel
doaj +1 more source