Results 101 to 110 of about 52,995 (203)

A Survey of Recent Interstellar Reddening Observations [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1967
K. Nandy, N. C. Wickramasinghe
openaire   +1 more source

Electrons in the cosmic radiation [PDF]

open access: yes, 1990
The nature of cosmic ray electrons and their radiation in the Universe has been studied. A convection associated diffusion model is proposed to describe the main characteristics of the large-scale distribution of cosmic ray electrons in the Galaxy: (1) a
Chi, Xinyu, Chi, X
core  

Interstellar Reddening of Type Ia Supernovae

open access: yes, 2006
We re-investigate the Lira-Phillips relation of Type Ia supernovae and its use for determination of reddening of individual SNe Ia. We use a more recent, more extensive dataset of SNe Ia with negligible reddening, and attempt to refine the prediction of ...
Sipos, N., Vinkó, J.
core   +1 more source

The Dependence of the Extinction Coefficient on Reddening for Galactic Cepheids

open access: yesThe Astrophysical Journal
Cepheids are fundamental distance indicators, playing a crucial role not only in the cosmic distance ladder but also in mapping the structure, kinematics, and extinction properties of the Milky Way.
Huajian Wang, Xiaodian Chen, Shu Wang
doaj   +1 more source

The Ratio of Interstellar Absorption to Reddening.

open access: yesThe Astrophysical Journal, 1941
J. L. Greenstein, L. G. Henyey
openaire   +1 more source

An intrinsic source of reddening in the cataclysmic variable SS Cygni

open access: yes, 2010
By using the INES archive of the IUE satellite, we analyzed the spectra of SS Cygni in quiescence in order to determine the value of the reddening of the binary system.
GIOVANNELLI F   +9 more
core   +1 more source

Photographic Photometry of NGC 6866

open access: yesJournal of Mathematical and Fundamental Sciences, 2019
. Magnitudes and colors in the UBV photometric system have been determined for 575 stars in and around NGC 6866. The color-color relation of the cluster stars provides an estimate of interstellar reddening of 0.16 mag. The distance of cluster is found to
B. Hidajat, W. Sutantyo
doaj  

Observational Evidence of Dust Evolution in Supernova Remnants: Size Redistribution toward Larger Grains in the Early Sedov Phase

open access: yesThe Astrophysical Journal Letters
Recent observations have revealed that dust is widespread and abundant in galaxies up to z  ≃ 8, significantly influencing their appearance and spectral properties.
He Zhao, Bingqiu Chen, Jun Li
doaj   +1 more source

Connecting Dust and Outflows in Active Galactic Nuclei: The Intriguing Case of NGC 6860

open access: yesThe Astrophysical Journal
Cosmic dust plays a crucial role in the evolution of galaxies, significantly influencing star formation and the interstellar medium. However, in active galactic nuclei (AGNs), the role and origin of dust remain poorly understood.
I. Psaradaki   +6 more
doaj   +1 more source

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