Results 111 to 120 of about 267,461 (212)

Spatial Variations of Dust Opacity and Grain Growth in Dark Clouds: L1689, L1709, and L1712

The Astrophysical Journal
The far-infrared (FIR) opacity of dust in dark clouds within the Ophiuchus molecular cloud is investigated through multiwavelength infrared observations from UKIDSS, Spitzer, and Herschel.
Jun Li, Biwei Jiang, He Zhao, Xi Chen, Yang Yang   +4 more
doaj   +1 more source

Time Evolution of Optical Darkness in Gamma-Ray Burst Afterglow: The Case of GRB 240825A

The Astrophysical Journal
Long-duration gamma-ray bursts (GRBs) are believed to occur in star-forming regions. The multiwavelength follow-up observations of the early afterglow of GRB 240825A provided insights into the evolution of the optical-to-X-ray spectral feature of the ...
Rui-Zhi Li, Jirong Mao, Yuan-Pei Yang, Bo-Ting Wang, Fei-Fan Song, Yu-Xin Xin, Jin-Ming Bai   +6 more
doaj   +1 more source

Silicate Extinction Profile Based on the Stellar Spectrum by Spitzer/IRS

The Astrophysical Journal
The 9.7 and 18 μ m interstellar spectral features, arising from the Si–O stretching and O–Si–O bending modes of amorphous silicate dust, are the strongest extinction features in the infrared.
Zhenzhen Shao, Biwei Jiang
doaj   +1 more source

An All-sky 3D Dust Map Based on Gaia and LAMOST

The Astrophysical Journal Supplement Series
We present a comprehensive 3D dust-reddening map covering the entire Milky Way, constructed by combining reddening estimates based on Large Sky Area Multi-Object Fiber Spectroscopy Telescope (LAMOST) low-resolution spectra ( E ( B  −  V ) _LAMOST ) with ...
Tao Wang, Haibo Yuan, Bingqiu Chen, Maosheng Xiang, Ruoyi Zhang, Bowen Huang, Hongrui Gu, Shuaicong Wang, Jiawei Li   +8 more
doaj   +1 more source

IRON: A KEY ELEMENT FOR UNDERSTANDING THE ORIGIN AND EVOLUTION OF INTERSTELLAR DUST. [PDF]

Astrophys J, 2016
Dwek E.
europepmc   +1 more source

A First Taste of MEAD (Measuring Extinction and Abundances of Dust). I. Diffuse Milky Way Interstellar Dust Extinction Features in JWST Infrared Spectra

The Astronomical Journal
We present the initial results of the Measuring Extinction and Abundances of Dust project, with a focus on the dust extinction features observed in our JWST near- and mid-infrared spectra of nine diffuse Milky Way sightlines (1.2 ≤ A ( V ) ≤ 2.5).
Marjorie Decleir, Karl D. Gordon, Karl A. Misselt, Burcu Günay, Julia Roman-Duval, Sascha T. Zeegers   +5 more
doaj   +1 more source

Interstellar dust as generator of x ray radiation [PDF]

, 1989
The x ray generation due to arising of hot dense plasma balls at high-velocity (greater than or equal to 70 km/s) collisions of dust grains in the interstellar medium is considered.
Ibadov, Subhon
core  

Atom Addition Formation of Thionylimide (HNSO) on Interstellar Dust Grains: Chemical Routes Requiring Oxygen and Nitrogen Atom Surface Diffusion. [PDF]

ACS Earth Space Chem
Del Valle JC, Sanz-Novo M, Kästner J, Furuya K, Rivilla VM, Martín-Doménech R, Molpeceres G.   +6 more
europepmc   +1 more source

Direct Samples of Interstellar and Interplanetary Material with IMAP. [PDF]

Space Sci Rev
Szalay JR, Provornikova E, Ayari E, Bzowski M, Christian ER, Funsten HO, Galli A, Gkioulidou M, Horányi M, Livi S, McComas DJ, Möbius E, Ogasawara K, Rahmanifard F, Rankin JS, Reisenfeld DB, Schwadron NA, Sternovsky Z, Swaczyna P, Turner D, Zank GP, Zirnstein EJ.   +21 more
europepmc   +1 more source

Secondary Ion-Ice Chemistry in UV-Irradiated Oxygen Ice: New Astrochemical Models Including Bulk Ionic Species. [PDF]

ACS Earth Space Chem
Darnell K, Lopez-Sanders D, Warren D, Carroll RA, Stanley E, Majumdar L, Caselli P, Arumainayagam CR, Shingledecker CN.   +8 more
europepmc   +1 more source