Results 121 to 130 of about 520,436 (213)

88th Annual Meeting of the Meteoritical Society 2026: Abstracts

Meteoritics &Planetary Science, Volume 61, Issue S1, Page S48-S551, August 2026.
wiley   +1 more source

Foreground Dust Properties toward the Cluster NGC 7380

The Astronomical Journal
Using starlight polarization, we present the properties of foreground dust toward cluster NGC 7380 embedded in H ii region Sh 2-142. Observations of starlight polarization are carried out in four filters using an imaging polarimeter equipped with a 104 ...
Sadhana Singh, Jeewan C. Pandey, Thiem Hoang, Neelam Panwar, Biman J. Medhi, Vishal Joshi, Shashikiran Ganesh   +6 more
doaj   +1 more source

Correlations between Dust Extinction Features across All Wavelength Scales: From Diffuse Interstellar Bands to R(V)

The Astrophysical Journal
Understanding variations in the dust extinction curve is imperative for using dust as a tracer of local structure in the interstellar medium, understanding dust chemistry, and performing extinction corrections.
Andrew K. Saydjari, Gregory M. Green
doaj   +1 more source

The detection of a broad interstellar extinction feature near 1700 A [PDF]

, 1989
A statistical examination of 126 extinction curves has revealed the presence of a second broad absorption feature similar in nature to the 2200 A feature.
Carnochan, David J.
core  

On the Variation of Interstellar Dust Extinction [PDF]

Dust obscures astronomical observations and plays a important role in the evolution of galaxies. Mapping dust in three dimensions not only allows accurate correction of observations but also constrains the evolution of the interstellar medium (ISM ...
Zhang, Xiangyu
core   +1 more source

Extinction Distributions in Nearby Star-resolved Galaxies. I. M31

The Astronomical Journal
An extinction distribution of the Andromeda galaxy (M31) is constructed with member stars as tracers by fitting multiband photometric data from UKIRT/WFCAM, Panoramic Survey Telescope and Rapid Response System 1, and Gaia DR3.
Yuxi Wang, Jian Gao, Yi Ren, Bingqiu Chen   +3 more
doaj   +1 more source

The Infrared Complex Refractive Index and Band Strengths of Coronene Thin Films

The Astrophysical Journal
Polycyclic aromatic hydrocarbon (PAH) molecules have long been theorized to be present in a multitude of interstellar environments. The radio-frequency detections of specific cyanosubstituted PAH molecules in the Taurus Molecular Cloud have provided new ...
J. E. Roser, L. Jovanović, A. Ricca
doaj   +1 more source

Expanded Sample of Small Magellanic Cloud Ultraviolet Dust Extinction Curves: Correlations between the 2175 Å Bump, q PAH, Ultraviolet Extinction Shape, and N(H i)/A(V)

The Astrophysical Journal
The Small Magellanic Cloud (SMC) shows a large variation in ultraviolet (UV) dust extinction curves, ranging from Milky Way (MW) like to significantly steeper curves with no detectable 2175 Å bump.
Karl D. Gordon, E. L. Fitzpatrick, Derck Massa, Ralph Bohlin, Jérémy Chastenet, Claire E. Murray, Geoffrey C. Clayton, Daniel J. Lennon, Karl A. Misselt, Karin Sandstrom   +9 more
doaj   +1 more source

Visual - near-infrared properties of the interstellar extinction towards the Galactic bulge with RR Lyrae stars

, 2018
Towards the bulge, studies of interstellar extinction are generally limited by uncertainties in the individual distances, magnitudes, and colors of the most commonly utilized stellar tracers.
Catelan, Márcio, Hajdu, Gergely, Dékány, István, Catelan, Márcio (6471491), Hajdu, Gergely (6471488), Grebel, Eva (6471497), Grebel, Eva, Dékány, István (6471494)   +7 more
core   +1 more source

A Detailed Analysis of Intermediate-scale Structure in Optical Extinction Curves: Expanded Census and Two-family Classification

The Astrophysical Journal
The features of interstellar extinction curves serve as powerful diagnostics for interstellar dust, revealing information about its composition, size distribution, and the physical and chemical processes that shape it. D. Massa et al.
Chamani M. Gunasekera, Marjorie Decleir, Karl D. Gordon, Geoffrey C. Clayton, Burcu Günay, Dries Van De Putte, Petia Yanchulova   +6 more
doaj   +1 more source