Results 41 to 50 of about 63,480 (217)
, 2016 We present a comprehensive study of interstellar X-ray extinction using the extensive Chandra supernova remnant archive and use our results to refine the empirical relation between the hydrogen column density and optical extinction.
Foight, Dillon +3 more
core +1 more source
Variations of Interstellar Ultra-Violet Absorption [PDF]
Symposium - International Astronomical Union, 1973 It is shown that mixtures of graphite core-ice mantle grains with large and small mean size and graphite grains provide good fits to the observed interstellar extinction curve.
openaire +1 more source
Interstellar Absorption of Some Be Stars [PDF]
International Astronomical Union Colloquium, 1987 It is well known that the intrinsic colors of Be stars are not the same as those of “normal” B stars and they are often redder. So interstellar absorption of Be stars determined from photometric indices may be overestimated. In order to avoid this, a method often used to determine the interstellar absorption of Be stars is based on the ultraviolet ...
D. Briot, J. Zorec
openaire +1 more source
Ryugu Reference Project: Recommendations from the Measurement Definition Team
Meteoritics &Planetary Science, EarlyView.Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama +16 more
wiley +1 more source
The Impact of Accurate Extinction Measurements for X-ray Spectral Models
, 2015 Interstellar extinction includes both absorption and scattering of photons from interstellar gas and dust grains, and it has the effect of altering a source's spectrum and its total observed intensity.
Corrales, Lia +2 more
core +1 more source
Small-scale structure in the interstellar medium: time-varying interstellar absorption towards κ Velorum [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 17 pages, 11 figures, 4 tables.
Smith, Keith T. +6 more
openaire +3 more sources
Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight
Experimental Physiology, EarlyView.Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley +1 more source
, 2003 We have obtained new STIS/HST spectra to search for structure in the ultraviolet interstellar extinction curve, with particular emphasis on a search for absorption features produced by polycyclic aromatic hydrocarbons (PAHs).
A. N. Witt +20 more
core +1 more source
A search for interstellar absorptions towards Sgr dSph [PDF]
Astronomy & Astrophysics, 2005 accepted by Astronomy & ...
Monai, S., Bonifacio, P., Sbordone, L.
openaire +2 more sources
FAST Discovery of a Fast Neutral Hydrogen Outflow
The Astrophysical Journal Letters, 2023 In this letter, we report the discovery of a fast neutral hydrogen outflow in SDSS J145239.38+062738.0, a merging radio galaxy containing an optical type I active galactic nucleus (AGN).
Renzhi Su +11 more
doaj +1 more source