Results 61 to 70 of about 218,608 (214)

Interstellar Extinction of Planetary Nebulae [PDF]

open access: yesSymposium - International Astronomical Union, 1993
We have compared the extinction of planetary nebulae (PN) as derived from the Balmer decrement and from the ratio of radio to Hβ fluxes.
G. Stasinska   +3 more
openaire   +1 more source

Grain growth, optical polarisation, and extinction in interstellar clouds [PDF]

open access: yes, 1989
Increases in the wavelength of maximum polarization and the ratio of total to selective extinction are generally assumed to be the result of grain growth in interstellar clouds.
Jones, A. P.
core  

The Multiwavelength Extinction Law and Its Variation in the Coalsack Molecular Cloud Based on the Gaia, APASS, SMSS, 2MASS, GLIMPSE, and WISE Surveys

open access: yesThe Astrophysical Journal
Accurate interpretation of observations relies on the interstellar dust extinction law, which also serves as a powerful diagnostic for probing dust properties.
Juan Deng   +3 more
doaj   +1 more source

Light‐Activated Protein‐Imprinted Hydrogels Capable of Translating Protein Surface Accessibility Into Missing‐Peptide Footprints

open access: yesSmall Structures, Volume 7, Issue 6, June 2026.
Light‐activated protein‐imprinted PFPA‐functionalized hydrogels crosslink captured proteins and report protein surface accessibility as missing‐peptide patterns readable by standard LC‐MS/MS. Mass spectrometry (MS)‐based structural proteomics can reveal higher‐order structural features in complex biological samples, but many covalent footprinting and ...
Eisuke Kanao   +10 more
wiley   +1 more source

A Unified Model of Interstellar Extinction and Polarization. I [PDF]

open access: yesThe Astrophysical Journal, 1965
The Most Completely Observed Characteristics of Interstellar Grains are their ability to dim and polarize the light of distant stars in our own galaxy. The principal limitation in previous theoretical models of interstellar dust clouds has been the fact that the extinction and polarization have been calculated for different particles, the connection ...
J. Mayo Greenberg, G. Shah
openaire   +1 more source

GALExtin: an alternative online tool to determine the interstellar extinction in the Milky Way

open access: yes, 2021
International audienceEstimates of interstellar extinction are essential in a broad range of astronomical research. In the last decades, several maps and models of the large-scale interstellar extinction in the Galaxy have been published.
Arsenijevic, Vladan   +8 more
core   +1 more source

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

open access: yesThe 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   +4 more
doaj   +1 more source

Polarization‐Selective Metamaterial Absorber for Long‐ to Very Long‐Wavelength Infrared Broadband

open access: yesNanophotonics, Volume 15, Issue 9, 13 May 2026.
Broadband and polarization‐selective metamaterial absorbers for long‐ to very long‐wavelength infrared light with high extinction ratios are designed and demonstrated, which provide a new method for broadband polarization‐selective absorbers. ABSTRACT Metamaterial absorbers have received extensive research interest and sustained attention due to their ...
Zhe Wu   +10 more
wiley   +1 more source

The Flattest Infrared Extinction Curve in Four Isolated Dense Molecular Cloud Cores

open access: yesThe Astrophysical Journal Letters
The extinction curve of interstellar dust in the dense molecular cloud cores is crucial for understanding dust properties, particularly size distribution and composition.
Jun Li   +5 more
doaj   +1 more source

Discovery and Initial Investigation of a New Low Surface Brightness Planetary Nebula Candidate at High Galactic Latitude

open access: yesAstronomische Nachrichten, Volume 347, Issue 3, March 2026.
ABSTRACT Planetary nebulae represent a late evolutionary phase of low‐ to intermediate‐mass stars. In this article, we present the serendipitous discovery of a previously unknown, faint potential Galactic planetary nebula (PN) in the constellation Camelopardalis, identified during a survey‐inspection, aiming at the detection of dwarf companions of the ...
W. E. Celnik   +12 more
wiley   +1 more source

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