Results 81 to 90 of about 218,608 (214)

Investigation of ultraviolet interstellar extinction [PDF]

, 1973
Results concerning interstellar extinction in the ultraviolet are reported. These results were initially obtained by using data from main-sequence stars and were extended to include supergiants and emission stars. The principal finding of the analysis of
Payne, C., Haramundanis, K. L.
core  

An Empirical Extinction Curve Revealed by Gaia XP Spectra and LAMOST

The Astrophysical Journal
We present a direct measurement of extinction curves using corrected Gaia XP spectra of the common sources in Gaia DR3 and LAMOST DR7. Our analysis of approximately 370,000 high-quality samples yielded a high-precision average extinction curve for the ...
Ruoyi Zhang, Haibo Yuan, Bowen Huang, Tao Wang, Lin Yang, Gregory M. Green, Xiangyu Zhang   +6 more
doaj   +1 more source

Measurements of Light Extinction by Single Aerosol Particles [PDF]

, 2013
A Bessel beam optical trap is combined with continuous wave cavity ringdown spectroscopy to measure the extinction cross section of individual aerosol particles.
Reid, Jonathan P., Carruthers, Antonia E., Walker, Jim S., Orr-Ewing, Andrew J.   +3 more
core   +1 more source

Estimation of Host Galaxy Extinction for SNe Ia

Galaxies
Type Ia supernovae are used as fundamental probes of the cosmological parameters, based on a tight empirical relation between their peak luminosity and the width of their light curve. However, it has been recognized that SNe Ia are not “standard” candles,
Oleg Malkov, Alexey Sytov, Gang Zhao, Zehao Zhong   +3 more
doaj   +1 more source

Interstellar Migration, the Population ‘Problem’ and the Climate Emergency

Critical Quarterly, Volume 68, Issue 1, Page 103-119, April 2026.
Anna Hartnell
wiley   +1 more source

Interstellar extinction and polarization in the infrared

The Astrophysical Journal, 1990
The wavelength dependences of interstellar continuum extinction and polarization in the range 0.35-5 microns are examined. The existence of a universal extinction curve with power law index of about 1.8 extending from the near-IR to at least 5 microns appears to be established for both diffuse and dense cloud dust.
P. G. Martin, D. C. B. Whittet
openaire   +1 more source

Variations of the Ratio of Total-To-selective Extinction in the Galaxy

Open Astronomy, 2003
The results of the study of variations of total-to-selective extinction RV near the Galactic plane (-12° ≤ b ≤+12°) are presented. It is shown that variations of RV range from 1.9 to 3.4 and it is not possible to determine its typical value for the ...
Sūdžius J., Raudeliūnas S.
doaj   +1 more source

Narrow absorption lines from intervening material in supernovae

Astronomy & Astrophysics
Narrow interstellar absorption features in supernova (SN) spectra serve as valuable diagnostics for probing dust extinction and the presence of circumstellar or interstellar material.
Gutiérrez Claudia P., González-Gaitán Santiago, Anderson Joseph P., Galbany Lluís   +3 more
doaj   +1 more source

Overlapping Open Clusters NGC 1750 and NGC 1758 behind the Taurus Dark Clouds. II. CCD Photometry in the Vilnius System

Open Astronomy, 2003
Seven-color photometry in the Vilnius system has been obtained for 420 stars down to V = 16 mag in the area containing the overlapping open clusters NGC 1750 and NGC 1758 in Taurus.
Straižys V., Kazlauskas A., Černiauskas A., Boyle R. P., Vrba F. J., Philip A. G. Davis, Laugalys V., Černis K., Smriglio F.   +8 more
doaj   +1 more source

An analysis of the Type Ia SN 2024gy and a comparison of different host extinction estimation techniques

Astronomy & Astrophysics
Type Ia supernovae (SNe Ia) are well-known standardisable candles, and are one of the main ways to measure the distance to their host galaxies. However, extinction due to interstellar dust causes objects to appear fainter and redder.
Terwel Jacco H., Maguire Kate, O’Donnell Cillian, Pursiainen Miika, Casasbuenas Alba, Thiim Gadeberg Julie, Godson Ben, Harvey Luke, Nobre Hauptmann Benjamin, Koivisto Niilo, Liu Chang, Shenoy Shravya, Grund Sørensen Samuel, Alejandra Díaz Teodori María, Guldberg Theil Astrid, Turkki Mikael, Alburai Alaa, Anderson Joe, de Boer Thomas, Müller Bravo Tomás, Burgaz Umut, Chambers Kenneth C., Chen Ting-Wan, Duarte João, Galbany Lluis, Gromadzki Mariusz, Inserra Cosimo, Johansson Joel, Kim Young-Lo, Lowe Thomas, Magnier Eugene, Santos Rita P., Sollerman Jesper, Wainscoat Richard, Young David R., Chen Tracy X., Graham Matthew J., Kasliwal Mansi M., Masci Frank J., Purdum Josiah N., Belkhodja Ines   +40 more
doaj   +1 more source