Results 111 to 120 of about 63,242 (201)

FAST Search for Circumstellar Atomic Hydrogen. III. Planetary Nebulae at Galactic Latitudes ∣b∣ ≥ 10°

open access: yesThe Astronomical Journal
The detection of circumstellar atomic hydrogen (H i ) via the 21 cm line remains a persistent challenge in planetary nebula (PN) studies, primarily due to contamination from ubiquitous interstellar H i 21 cm emission. In this paper, we report the results
Xu-Jia Ouyang   +6 more
doaj   +1 more source

Low-frequency Absorption and Radio Recombination Line Features of the Galactic Center Lobe

open access: yesThe Astrophysical Journal
The Galactic center lobe (GCL) is a ∼1° object located north of the Galactic center. In the mid-infrared, the GCL appears as two 8.0 μ m filaments that roughly define an ellipse.
Natasha Hurley-Walker   +8 more
doaj   +1 more source

A 6 cm Formaldehyde Line Survey toward WISE Point Sources

open access: yesThe Astrophysical Journal Supplement Series
We conducted a 6 cm formaldehyde (H _2 CO) line survey across the northern sky, targeting 3149 high-mass star-forming region candidates selected from the all-sky Wide-field Infrared Survey Explorer (WISE) point-source catalog using the Shanghai TianMa 65
Jun-Ting Liu   +8 more
doaj   +1 more source

Spatially Resolved Comparison of SFRs from UV and Hα in GASP Gas-stripped Galaxies

open access: yesThe Astrophysical Journal
Star formation rates (SFRs) in galaxies offer a view of various physical processes across them, and are measured using various tracers, such as H α and ultraviolet (UV).
Neven Tomičić   +8 more
doaj   +1 more source

METAL-Z: Measuring Dust Depletion in Low-metallicity Dwarf Galaxies

open access: yesThe Astrophysical Journal
The cycling of metals between interstellar gas and dust is a critical aspect of the baryon cycle of galaxies, yet our understanding of this process is limited. This study focuses on understanding dust depletion effects in the low-metallicity regime (
Aleksandra Hamanowicz   +8 more
doaj   +1 more source

Abiotic formation of nitrile precursors to amino acids and nucleobases in interstellar ice analogues. [PDF]

open access: yesChem Sci
Wang J   +8 more
europepmc   +1 more source

Origin of the diffuse interstellar absorption bands - IV. Relation to interstellar depletion [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1979
T. J. Millar, W. W. Duley
openaire   +1 more source

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