Results 81 to 90 of about 264 (177)

A Survey of Recent Interstellar Reddening Observations [PDF]

Monthly Notices of the Royal Astronomical Society, 1967
K. Nandy, N. C. Wickramasinghe
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A Near-infrared Extinction and Reddening Map toward the Galactic Bulge Using UKIRT

The Astronomical Journal
The Galactic bulge is one of the most information-dense regions to study resolved stellar populations, variables, and transients, such as microlensing events.
Aiden S. Zelakiewicz, Samson A. Johnson, B. Scott Gaudi, Geoffrey Bryden, David M. Nataf, Yossi Shvartzvald   +5 more
doaj   +1 more source

Diffuse interstellar bands in the near-infrared: expanding the reddening range

Monthly Notices of the Royal Astronomical Society
ABSTRACT We have investigated the behaviour of three strong near-infrared diffuse interstellar bands (DIBs) at λ13177 Å, λ14680 Å, and λ15272 Å, on a larger sample of sightlines and over a wider range of extinctions than previously studied, utilizing spectra from three observatories.
R Castellanos, F Najarro, M Garcia, L R Patrick, T R Geballe   +4 more
openaire   +2 more sources

Considering light-matter interactions in the Friedmann equations. [PDF]

Proc Math Phys Eng Sci, 2022
Vavryčuk V.
europepmc   +1 more source

The Ratio of Interstellar Absorption to Reddening.

The Astrophysical Journal, 1941
J. L. Greenstein, L. G. Henyey
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The Dependence of the Extinction Coefficient on Reddening for Galactic Cepheids

The 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

Photographic Photometry of NGC 6866

Journal 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

The 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

The 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, M. Mehdipour, D. Rogantini, E. Costantini, N. Schulz, S. Zeegers, E. Caruso   +6 more
doaj   +1 more source

A radio-detected type Ia supernova with helium-rich circumstellar material. [PDF]

Nature, 2023
Kool EC, Johansson J, Sollerman J, Moldón J, Moriya TJ, Mattila S, Schulze S, Chomiuk L, Pérez-Torres M, Harris C, Lundqvist P, Graham M, Yang S, Perley DA, Strotjohann NL, Fremling C, Gal-Yam A, Lezmy J, Maguire K, Omand C, Smith M, Andreoni I, Bellm EC, Bloom JS, De K, Groom SL, Kasliwal MM, Masci FJ, Medford MS, Park S, Purdum J, Reynolds TM, Riddle R, Robert E, Ryder SD, Sharma Y, Stern D.   +36 more
europepmc   +1 more source