Results 111 to 120 of about 1,535 (206)

Time Evolution of Optical Darkness in Gamma-Ray Burst Afterglow: The Case of GRB 240825A

The Astrophysical Journal
Long-duration gamma-ray bursts (GRBs) are believed to occur in star-forming regions. The multiwavelength follow-up observations of the early afterglow of GRB 240825A provided insights into the evolution of the optical-to-X-ray spectral feature of the ...
Rui-Zhi Li, Jirong Mao, Yuan-Pei Yang, Bo-Ting Wang, Fei-Fan Song, Yu-Xin Xin, Jin-Ming Bai   +6 more
doaj   +1 more source

Silicate Extinction Profile Based on the Stellar Spectrum by Spitzer/IRS

The Astrophysical Journal
The 9.7 and 18 μ m interstellar spectral features, arising from the Si–O stretching and O–Si–O bending modes of amorphous silicate dust, are the strongest extinction features in the infrared.
Zhenzhen Shao, Biwei Jiang
doaj   +1 more source

Diverse reddening distributions in sight lines for type Ia supernovae

Astronomy & Astrophysics
Context. Accurate cosmological constraints from type Ia supernovae (SNe) require sufficiently accurate corrections for host-galaxy extinction. Modelling these corrections is challenged by the problem of disentangling the SN’s intrinsic colours from host ...
Hallgren Lucas, Wojtak Radosław, Hjorth Jens, Steinhardt Charles L.   +3 more
doaj   +1 more source

Extreme Starlight Polarization Efficiency toward ζ Ophiuchi: A Case for Line-of-sight Foreground Subtraction

The Astronomical Journal
Despite the pervasive nature of interstellar dust and its impact on nearly all observations, most dust corrections employ line-of-sight averages over large angular scales.
Jordan A. Bartlett, Henry A. Kobulnicky
doaj   +1 more source

Interstellar matter in elliptical galaxies - III. Properties of dust extinction [PDF]

Monthly Notices of the Royal Astronomical Society, 1994
Goudfrooy, P., de Jong, T., Hansen, L., Norgaard-Nielsen, H.U.   +3 more
openaire   +3 more sources

Dust destruction in interstellar shocks [PDF]

, 2003
Ein Teil der interstellaren Materie (ISM) liegt in Form von winzigen Festkörpern vor, die mit dem interstellaren Gas vermischt sind. Diese Teilchen werden als interstellarer Staub bezeichnet.
Völker, Roland
core  

A Catalog of Stellar and Dust Properties for 500,000 Stars in the Southwest Bar of the Small Magellanic Cloud

The Astrophysical Journal
We present a catalog of individual stellar and dust extinction properties along close to 500,000 sight lines in the southwest bar of the Small Magellanic Cloud (SMC). The catalog is based on multiband Hubble Space Telescope photometric data spanning near-
Petia Yanchulova Merica-Jones, Karl Gordon, Karin Sandstrom, Claire E. Murray, L. Clifton Johnson, Julianne J. Dalcanton, Julia Roman-Duval, Jeremy Chastenet, Benjamin F. Williams, Daniel R. Weisz, Andrew E. Dolphin   +10 more
doaj   +1 more source

Interstellar extinction and the composition of dust grains [PDF]

Monthly Notices of the Royal Astronomical Society, 1987
openaire   +1 more source

IR emission and UV extinction in two open clusters [PDF]

, 1989
Recent models of interstellar extinction have shown the importance of understanding both the UV and IR properties of interstellar dust grains. IRAS data have shown variations in 60 and 100 micron emissions presumably due to the presence of IR cirrus ...
Hackwell, James A., Hecht, James H.
core   +1 more source

Estimating Dust Attenuation from Galactic Spectra. III. Radial Variations of Dust Attenuation Scaling Relations in MaNGA Galaxies

The Astrophysical Journal
We investigate the radial dependence of the scaling relations of dust attenuation in nearby galaxies using integral field spectroscopy data from MaNGA.
Niu Li, Cheng Li
doaj   +1 more source