Results 91 to 100 of about 57,383 (218)
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
Forecasting SEP Atmospheric and Space Radiation by Coupling UMASEP and NAIRAS Models
Space Weather, Volume 24, Issue 1, January 2026.Abstract The Nowcast of Aerospace Ionizing RAdiation System (NAIRAS) model predicts the radiation environment from the Earth's surface to free‐space. The model output provides dosimetric and particle flux quantities required to assess the hazardous radiation impacts to human health and adverse effects on vehicle electronic systems.
Christopher J. Mertens +4 more
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
Detection of [O I] 63 μm in absorption toward Sgr B2 [PDF]
, 1997 A high signal-to-noise 52-90 μm spectrum is presented for the central part of the Sagittarius B2 complex. The data were obtained with the Long Wavelength Spectrometer on board the Infrared Space Observatory (ISO).
Armand, C. +28 more
core
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
Diffuse Atomic and Molecular Gas in the Interstellar Medium of M82 toward SN 2014J
, 2014 We present a comprehensive analysis of interstellar absorption lines seen in moderately-high resolution, high signal-to-noise ratio optical spectra of SN 2014J in M82. Our observations were acquired over the course of six nights, covering the period from
Dahlstrom, Julie A. +3 more
core +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
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
GalaxiesThis work is dedicated to the study of interstellar medium (ISM) along the line of sight (LOS) of the transient low-mass X-ray binary, MXB 1659-298, capitalizing the high resolving power of XMM-Newton in the soft energy range.
Rabindra Mahato +2 more
doaj +1 more source
The Astrophysical JournalThe dusty interstellar medium (ISM) of the Milky Way is distributed in a complex, cloudy structure. It is fundamental to the radiation balance within the Milky Way, provides a reaction surface to form complex molecules, and is the feedstock for future ...
S. T. Zeegers +35 more
doaj +1 more source