Results 61 to 70 of about 1,217 (186)
Circular polarization of interstellar absorption lines at radio frequencies
The Astrophysical Journal, 1985 On etudie la formation d'un rayonnement de raies lineairement et circulairement polarise aux frequences radio lorsque le rayonnement d'une source continue eloignee se propage dans un gaz diffus comme le milieu interstellaire. On a obtenu les equations du transfert radiatif pour les parametres de Stokes (I, Q, U et V)
S. Deguchi, W. D. Watson
openaire +1 more source
Ryugu reference project: Recommendations from the measurement definition team
Meteoritics &Planetary Science, Volume 61, Issue 5, Page 819-848, May 2026.Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama +16 more
wiley +1 more source
The Local Group L-band Survey: Probing Cold Atomic Gas in IC 10 with Neutral Hydrogen Absorption
The Astrophysical JournalWe present the first localized detections of the cold neutral medium (CNM) in IC 10, offering a rare view of dense atomic gas in a low-metallicity ( Z / Z _⊙ ∼ 0.27) dwarf galaxy.
Ioana A. Stelea +22 more
doaj +1 more source
Spectroscopic Investigation of Thioacrolein by Variational and Perturbational Approaches
Journal of Computational Chemistry, Volume 47, Issue 10, 15 April 2026.The vibrational and rotational spectra of trans and cis‐thioacrolein were studied by high levels of electronic and vibrational structure theory. Comparisons with experimental results are provided for several molecular quantities. ABSTRACT The vibrational spectra of trans and cis‐thioacrolein have been studied by 2nd order vibrational perturbation ...
Guntram Rauhut
wiley +1 more source
Low-frequency Absorption and Radio Recombination Line Features of the Galactic Center Lobe
The Astrophysical JournalThe 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
The Astrophysical Journal Supplement SeriesWe 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
The Astrophysical Journal, 2001 The three unidentified interstellar lines λλ1368.74, 1369.13, and 1370.87 are here assigned to the CH molecule, including the diffuse interstellar band (DIB) at 1369.13 A. A consistent rotational assignment of the interstellar lines and the 3d-X 2Π laboratory spectrum is presented.
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First Observation of CO2 Foreground Absorption toward the Galactic Center with JWST
The Astrophysical JournalCO _2 is an important, stable, and abundant molecule in the Universe, but it is very difficult to detect because it has no observable pure rotational transitions. The unique sensitivity and resolution of the James Webb Space Telescope provide a fresh way
Jiawei Qiu +13 more
doaj +1 more source
Physical and Chemical Properties of Galactic Molecular Gas toward QSO J1851+0035
The Astrophysical JournalAtacama Large Millimeter/submillimeter Array (ALMA) data toward QSO J1851+0035 ( l = 33.°498, b = +0.°194) were used to study absorption lines by Galactic molecular gas.
Kanako Narita +4 more
doaj +1 more source
The Distance to the Magellanic Stream: Constraints from Optical Absorption along Stellar Sight Lines
The Astrophysical JournalThe Magellanic Stream is a large tail of neutral and ionized gas originating from tidal and hydrodynamical interactions between the Magellanic Clouds as they orbit the Milky Way (MW).
Sapna Mishra +4 more
doaj +1 more source