Results 131 to 140 of about 25,001 (219)

Interstellar and cometary dust [PDF]

Aspects of interstellar dust which are known from direct observation will be discussed. Some specific difficulties that various theories have in explaining the observations will be presented.
Mathis, John S.
core   +1 more source

Extinction Distributions in Nearby Star-resolved Galaxies. II. M33

The Astronomical Journal
Extinction maps are essential for tracing interstellar dust and enabling accurate stellar population studies in galaxies. Here, a high-resolution extinction distribution of the nearby Triangulum galaxy (M33), is constructed by fitting multiband color ...
Yuxi Wang, Yi Ren, Jian Gao, Bingqiu Chen, Ying Li   +4 more
doaj   +1 more source

A cationic carrier for the diffuse interstellar band at 862.1 nm: Evidence of the skin effect in nearby diffuse to translucent clouds

Astronomy & Astrophysics
The tendency of some diffuse interstellar band (DIB) carriers to concentrate in the outer UV-illuminated layers of molecular clouds (MCs), the so-called skin effect, makes their spatial distribution a powerful probe of their physical nature. We leveraged
Zhao H., Li L.
doaj   +1 more source

Gas-phase Oxygenation and Sulfurization Processes of Fullerene Cations

The Astrophysical Journal
Atomic oxygen and sulfur are known to efficiently react with fullerenes and may thus form a long list of oxygenated and sulfurated fullerene species in the interstellar medium (ISM).
Nian Zhao, Xiaoyi Hu, Yanan Ge, Congcong Zhang, Aigen Li, Junfeng Zhen, Xuejuan Yang   +6 more
doaj   +1 more source

Pathway to the identification of C60+ in diffuse interstellar clouds. [PDF]

Philos Trans A Math Phys Eng Sci, 2016
Maier JP, Campbell EK.
europepmc   +1 more source

Ambipolar diffusion in interstellar clouds - A new solution

The Astrophysical Journal, 1979
We present a solution for the relative drift velocity between the neutral and ionized matter in a cylindrically symmetric, magnetic cloud, which contracted gravitationally to an equilibrium state from an initially uniform state. The cloud is bounded by a hot and tenuous external medium.
openaire   +1 more source

87th Annual Meeting of the Meteoritical Society 2025: Abstracts

Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley   +1 more source

The Gas-phase Nitridation Processes of Fullerene Cations in the Interstellar Medium

The Astrophysical Journal
The chemical evolution of fullerene molecules is an important and interesting topic in astrochemistry. In this work, the coevolution processes occurring in fullerene cations ([C _60 ] ^+ and [C _58/56 ] ^+ ) in response to ultraviolet radiation and N ...
Yanan Ge, Congcong Zhang, Junfeng Zhen, Yuming Wang   +3 more
doaj   +1 more source

Observation of Diffuse Galactic Light Near the Galactic Center with ONC-T on Board Hayabusa2

The Astrophysical Journal
Diffuse Galactic light (DGL) is starlight scattered by interstellar dust. In visible wavelengths, earlier studies observed DGL toward regions of low optical depth in high Galactic latitude, and show marginal consistency with a theoretical model assuming ...
Kei Sano, Yuto Tome, Kana Kurosaki, Kohji Tsumura, Shuji Matsuura, Kohji Takimoto, Takahiro Iwata, Manabu Yamada, Tomokatsu Morota, Toru Kouyama, Masahiko Hayakawa, Yasuhiro Yokota, Eri Tatsumi, Moe Matsuoka, Naoya Sakatani, Koki Yumoto, Shingo Kameda, Hidehiko Suzuki, Yuichiro Cho, Kazuo Yoshioka, Kazunori Ogawa, Kei Shirai, Hirotaka Sawada, Seiji Sugita   +23 more
doaj   +1 more source

Galactic gamma-ray observations and galactic structure [PDF]

Recent observations of gamma-rays originating in the galactic disk together with radio observations, support an emerging picture of the overall structure of our galaxy with higher interstellar gas densities and star formation rates in a region which ...
Stecker, F. W.
core   +1 more source