Results 21 to 30 of about 114,083 (289)
A Low-mass line-rich Core Found in Massive Star-forming Region IRAS 16351-4722
The Astrophysical Journal, 2023 We present Atacama Large Millimeter/submillimeter Array subarcsecond-resolution observations of both continuum and molecular lines at 345 GHz toward the massive star-forming region IRAS 16351-4722 (hereafter I16351).
Meizhu Liu +12 more
doaj +1 more source
Critically Evaluated Atomic Data for the Au iv Spectrum
The Astrophysical Journal Supplement Series, 2023 A spectral investigation of triply ionized gold (Au iv ) has been carried out in the wavelength region of 500–2106 Å. The gold spectra were photographed at the National Institute of Standards and Technology, USA, on a 10.7 m normal incidence vacuum ...
Aashna Zainab +4 more
doaj +1 more source
New identifications of Fe XVII spectral lines in solar flares [PDF]
Monthly Notices of the Royal Astronomical Society, 1985 The identifications of Fe XVII transitions between the 2s(2)2p(5)3s, 3p, and 3d configurations published by Jupen (1984) are reviewed. The review is based on examining spectroheliograms of solar flares obtained by a Naval Research Laboratory instrument on Skylab (S082-A).
U. Feldman, G. A. Doschek, J. F. Seely
openaire +1 more source
Discovery of the Elusive Carbonic Acid (HOCOOH) in Space
The Astrophysical Journal, 2023 A quarter century after the detection of the last interstellar carboxylic acid, acetic acid (CH _3 COOH), we report the discovery of a new one, the cis-trans form of carbonic acid (HOCOOH), toward the Galactic center molecular cloud G+0.693–0.027. HOCOOH
Miguel Sanz-Novo +14 more
doaj +1 more source
Detection and identification of microplastics directly in water by hyperspectral imaging [PDF]
EPJ Web of Conferences, 2023 We use hyperspectral imaging to identify the plastic types constituting mixtures of microplastics directly in water. For the current study we used known microplastics made by milling original pristine plastic sheets and mixed them in water.
Gebejes Ana +8 more
doaj +1 more source
The Astrophysical Journal, 2023 Freshly synthesized r -process elements in kilonovae ejecta imprint absorption features on optical spectra, as observed in the GW170817 binary neutron star merger. These spectral features encode insights into the physical conditions of the r -process and
Nicholas Vieira +6 more
doaj +1 more source
Chemosensors, 2022 The increasing demand for rare earth elements (REE) requires faster analysis techniques for their rapid exploration. Laser-induced breakdown spectroscopy (LIBS) has on-site and real time analysis capability.
Muhammad Sher Afgan +6 more
doaj +1 more source
电力工程技术, 2022 To solve the problem of traditional pollution detection methods on the prevention and control of pollution flashover of transmission line insulators,the non-contact and high-resolution hyperspectral technology is used to study the on-line pollution ...
SHEN Long +5 more
doaj +1 more source
LifeWe employed data from the Spitzer Space Telescope to investigate the presence of the aromatic amino acids tyrosine and phenylalanine in the interstellar gas of the young star cluster IC 348.
Susana Iglesias-Groth +3 more
doaj +1 more source
Spectuner: A Framework for Automated Line Identification of Interstellar Molecules
The Astrophysical Journal Supplement SeriesInterstellar molecules, which play an important role in astrochemistry, are identified using observed spectral lines. Despite the advent of spectral analysis tools in the past decade, the identification of spectral lines remains a tedious task that ...
Yisheng Qiu +6 more
doaj +1 more source