Results 71 to 80 of about 1,388 (238)
The Astrophysical JournalWe report the results of the CO J = 1–0 and SiO J = 2–1 mapping observations toward the broad-velocity-width molecular feature (BVF) CO 16.134–0.553 with the Nobeyama Radio Observatory 45 m telescope.
Hiroki Yokozuka +4 more
doaj +1 more source
Structure Identification of CO Monolayer on Ag(111) Using Atomic Force Microscopy
Advanced Materials Interfaces, Volume 12, Issue 10, May 19, 2025.Physisorption systems of CO molecules on metal surfaces have long been studied. Nondestructive analysis of weakly adsorbed systems on surfaces still remains a challenging task. In this study, the structure of the CO monolayer is successfully determined by directly visualizing individual CO molecules using atomic force microscopy (AFM).
Mitsuo Kimura +2 more
wiley +1 more source
Multi‐isotope (N, O, Ti, and Cr) study of C1 and CM‐like clasts—Probing unsampled C1 material
Meteoritics &Planetary Science, Volume 60, Issue 5, Page 1073-1094, May 2025.Abstract A multi‐element isotope (N, O, Ti, and Cr) study was conducted on C1 and CM‐like clasts hosted in achondrites and chondrite breccias to understand the genesis of these chondritic clasts. The mineralogy, O, and N isotopes confirm that CM‐like clasts in howardites and polymict eucrites closely resemble CM chondrite‐like material.
Markus Patzek +9 more
wiley +1 more source
The ALMA-QUARKS Survey: Detection of Two Extremely Dense Substructures in a Massive Prestellar Core
The Astrophysical Journal LettersOnly a handful of massive starless core candidates have been discovered so far, but none of them have been fully confirmed. Within the MM1 clump in the filamentary infrared dark cloud G34.43+0.24 that was covered by the Atacama Large Millimeter ...
Xiaofeng Mai +34 more
doaj +1 more source
Star formation in infrared dark clouds: Self-gravity and dynamics
, 2016 The role played by gravity in the transfer of interstellar matter from molecular cloud scales to protostellar scales is still highly debated. Only detailed studies on the kinematics of large samples of star-forming clouds will settle the issue.
N. Peretto +5 more
core +1 more source
A sequential acid-base mechanism in the interstellar medium: The emergence of cis-formic acid in dark molecular clouds [PDF]
, 2023 Juan García de la Concepción +7 more
openalex +1 more source
Interstellar Migration, the Population ‘Problem’ and the Climate Emergency
Critical Quarterly, Volume 68, Issue 1, Page 103-119, April 2026.
Anna Hartnell
wiley +1 more source
Advances in Astronomy, Volume 2025, Issue 1, 2025.The Chelyabinsk meteor entered Earth’s atmosphere on 15 February 2013, producing a shock wave that injured about 1500 people and damaged thousands of buildings. Despite its relatively large size (∼20 m), the progenitor asteroid approached Earth undetected. Its apparent radiant was too close to the Sun for standard ground‐based near‐Earth asteroid (NEA)
Thomas Müller +9 more
wiley +1 more source
Phenyl Radical Activates Molecular Hydrogen Through Protium and Deuterium Tunneling
Angewandte Chemie International Edition, Volume 63, Issue 51, December 16, 2024.Activating the strong H2 bond is typically reserved for transition metals, and only a few main group systems can tackle this challenge. Here, we explore a phenyl radical mediated pathway utilizing the photolysis of iodobenzene. The phenyl radical leverages the high C−H bond energy of the forming benzene to drive H2 activation.
Virinder Bhagat +2 more
wiley +1 more source
On the Existence, Rareness, and Uniqueness of Quenched H i-rich Galaxies in the Local Universe
The Astrophysical JournalUsing data from ALFALFA, xGASS, H i -MaNGA, and the Sloan Digital Sky Survey (SDSS), we identify a sample of 47 “red but H i -rich” (RR) galaxies with near-UV (NUV) − r > 5 and unusually high H i -to-stellar mass ratios. We compare the optical properties
Xiao Li +5 more
doaj +1 more source