Results 31 to 40 of about 239,171 (281)
HST Survey of the Orion Nebula Cluster in the H2O 1.4 μm Absorption Band. II. The Substellar IMF Down to Planetary Masses [PDF]
Astrophysical Journal, 2020 We utilize the ability of the Hubble Space Telescope to probe near-infrared water absorption present in the atmosphere of low-mass stars and brown-dwarf and planetary-mass objects to create a pure sample of Orion Nebula Cluster (ONC) members, not ...
M. Gennaro, M. Robberto
semanticscholar +1 more source
Explaining the Chemical Inventory of Orion KL through Machine Learning
The Astrophysical Journal, 2023 The interplay of the chemistry and physics that exists within astrochemically relevant sources can only be fully appreciated if we can gain a holistic understanding of their chemical inventories. Previous work by Lee et al.
Haley N. Scolati +4 more
doaj +1 more source
Protoplanetary Disk Properties in the Orion Nebula Cluster: Initial Results from Deep, High-resolution ALMA Observations [PDF]
Astrophysical Journal, 2018 We present Atacama Large Millimeter Array 850 μm continuum observations of the Orion Nebula Cluster that provide the highest angular resolution (∼0.″1 ≈ 40 au) and deepest sensitivity (∼0.1 mJy) of the region to date. We mosaicked a field containing ∼225
J. Eisner +15 more
semanticscholar +1 more source
Chemical and genetic characterization of the ungrouped pallasite Lieksa
Meteoritics &Planetary Science, Volume 58, Issue 12, Page 1747-1759, December 2023., 2023 ABSTRACT The meteorite Lieksa was found in 2017 in Löpönvaara, Finland, and later donated to the Finnish Museum of Natural History. Here, we report siderophile element concentrations, genetic isotopic data, and a metal–silicate segregation age for the meteorite.
Emily M. Chiappe +6 more
wiley +1 more source
The Orion Nebula in the Mid-Infrared [PDF]
The Astronomical Journal, 2005 34 pages, 22 figures, 5 tables, AJ in ...
Mario Bertero +12 more
openaire +4 more sources
Photoelectron Photoion Coincidence Spectroscopy of Biradicals
ChemPhysChem, Volume 24, Issue 16, August 15, 2023., 2023 Biradical species are notoriously difficult to detect, due to their open‐shell character and the resulting high reactivity. As reactive intermediates, they are found in flames, in the interstellar medium, and in earths’ atmosphere. Unveiling their electronic structure is of paramount interest to understand their chemistry.
Ingo Fischer, Patrick Hemberger
wiley +1 more source
Hunting for Runaways from the Orion Nebula Cluster [PDF]
Astrophysical Journal, 2020 We use Gaia DR2 to hunt for runaway stars from the Orion Nebula Cluster (ONC). We search a region extending 45° around the ONC and out to 1 kpc to find sources that have overlapped in angular position with the cluster in the last ∼10 Myr. We find ∼17,000
J. Farias, J. Tan, L. Eyer
semanticscholar +1 more source
ChemPlusChem, Volume 88, Issue 5, May 2023., 2023 A metal worker's laboratory: from Georg Agricola, De re Metallica, Libri XII, Basel, 1556, illustrating a reverberatory oven similar to what Carl Wenzel would have used to divide his metals in the 1770s. This Perspective essay discusses Wenzel, who was a chemist and an alchemist with deep knowledge of acids, bases and salts, and he was credited with ...
Curt Wentrup
wiley +1 more source
Review of European, Comparative &International Environmental Law, Volume 32, Issue 1, Page 105-118, April 2023., 2023 Abstract This article compares the framework of environmental public interest litigation in China to the individualized system of judicial review in Germany. It shows that environmental reform requires modern States such as Germany and China to consider certain objective criteria related to the public interest.
Nicholas Campbell
wiley +1 more source
Meteoritics &Planetary Science, Volume 58, Issue 3, Page 383-404, March 2023., 2023 Abstract Models of planetary core formation beginning with melting of Fe,Ni metal and troilite are not readily applicable to oxidized and sulfur‐rich chondrites containing only trace quantities of metal. Cores formed in these bodies must be dominated by sulfides.
Samuel D. Crossley +4 more
wiley +1 more source