Results 21 to 30 of about 37,338 (51)
Resolved Measurements of the CO-to-H2 Conversion Factor in 37 Nearby Galaxies
The Astrophysical JournalWe measure the CO-to-H _2 conversion factor ( α _CO ) in 37 galaxies at 2 kpc resolution, using the dust surface density inferred from far-infrared emission as a tracer of the gas surface density and assuming a constant dust-to-metal ratio.
I-Da Chiang +8 more
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Theoretical Spectroscopic Study of Isopropyl Alcohol (CH3-CHOH-CH3)
The Astrophysical JournalAccurate spectroscopic parameters of isopropyl alcohol, a volatile organic compound present on Earth and in extraterrestrial atmospheres, are provided.
Mohammed Salah +3 more
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ALMA-LEGUS. II. The Influence of Subgalactic Environments on Molecular Cloud Properties
The Astrophysical JournalWe compare the molecular cloud properties in subgalactic regions of two galaxies, barred spiral NGC 1313, which is forming many massive clusters, and flocculent spiral NGC 7793, which is forming significantly fewer massive clusters despite having a ...
Molly K. Finn +26 more
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Zone of Preferential Heating for Minor Ions in the Solar Wind
The Astrophysical JournalThe properties of minor ions in the solar wind are important indicators of the state of the solar corona and the heating processes it undergoes as it expands.
Janelle Holmes +4 more
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Ejection Patterns in the DG Tau Jet over the Last 40 yr: Insights into Mass Accretion Variability
The Astrophysical JournalWe aim to clarify the link between mass accretion and ejection by analyzing DG Tau’s jet observations from optical and near-infrared data spanning 1984–2019, alongside photometric variations between 1983 and 2015.
Tae-Soo Pyo +3 more
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The Origins of Gas Accreted by Supermassive Black Holes: The Importance of Recycled Gas
The Astrophysical JournalWe investigate the fueling mechanisms of supermassive black holes (SMBHs) by analyzing 10 zoom-in cosmological simulations of massive galaxies, with stellar masses 10 ^11–12 M _⊙ and SMBH masses 10 ^8.9–9.7 M _⊙ at z = 0, featuring various major and ...
Ena Choi +4 more
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GRB 220304A: Another Gamma-Ray Burst Dominated by Thermal Radiation
The Astrophysical JournalWe report a recently detected long-duration gamma-ray burst (GRB) event by Fermi-GBM, GRB 220304A. The spectral analysis of the burst by the Band function shows that both the time-integrated and time-resolved spectra are very narrow, with low-energy ...
Jia-Ming Chen, Zhao-Yang Peng
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Energy Dissipation in Electron-only Reconnection
The Astrophysical JournalMagnetic reconnection is a fundamental process in space and astrophysical plasmas that converts magnetic energy to particle energy. Recently, a novel kind of reconnection, called electron-only reconnection, has been observed in Earth's magnetosheath ...
S. Roy +3 more
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The Astrophysical JournalThe James Webb Space Telescope is revealing a new population of dust-reddened broad-line active galactic nuclei (AGN) at redshifts z ≳ 5. Here we present deep NIRSpec/Prism spectroscopy from the Cycle 1 Treasury program Ultradeep NIRSpec and NIRCam ...
Jenny E. Greene +35 more
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The Astrophysical JournalCosmic rays (CRs) travel throughout the Galaxy, leaving traces from radio to ultra-high-energy γ -rays due to interactions with the interstellar gas, radiation field, and magnetic field.
Xin-Yu He +3 more
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