Results 131 to 140 of about 167,251 (265)

A Small Pathbreaking Spacecraft: Giants of Space Research (Bernard Blake, Dieter Hovestadt, and Edward Stone)

Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract The Solar, Anomalous, and Magnetospheric Explorer (SAMPEX) mission launched in July 1992 was the first NASA “Small Explorer” project. It had the goal to show how space missions could be developed much more rapidly than had become the situation in the 1980s and 1990s.
D. N. Baker, G. M. Mason
wiley   +1 more source

The Green Monster Hiding in Front of Cas A: JWST Reveals a Dense and Dusty Circumstellar Structure Pockmarked by Ejecta Interactions

The Astrophysical Journal Letters
JWST observations of the young Galactic supernova remnant Cassiopeia A revealed an unexpected structure seen as a green emission feature in colored composite MIRI F1130W and F1280W images—hence dubbed the Green Monster—that stretches across the central ...
Ilse De Looze, Dan Milisavljevic, Tea Temim, Danielle Dickinson, Robert Fesen, Richard G. Arendt, Jeremy Chastenet, Salvatore Orlando, Jacco Vink, Michael J. Barlow, Florian Kirchschlager, Felix D. Priestley, John C. Raymond, Jeonghee Rho, Nina S. Sartorio, Tassilo Scheffler, Franziska Schmidt, William P. Blair, Ori Fox, Christopher Fryer, Hans-Thomas Janka, Bon-Chul Koo, J. Martin Laming, Mikako Matsuura, Dan Patnaude, Mónica Relaño, Armin Rest, Judy Schmidt, Nathan Smith, Niharika Sravan   +29 more
doaj   +1 more source

Development of Photo‐Biocatalytic Redox System for Asymmetric Synthesis of Optically Active Amines Using Blue Light and Transaminases. A Case Study Toward Mavacamten

Advanced Synthesis &Catalysis, Volume 367, Issue 12, June 26, 2025.
Abstract α‐Chiral amines are versatile building blocks for the asymmetric synthesis of optically pure high‐added‐value chemicals, including pharmaceuticals, agrochemicals, and natural products. Herein, we report a one‐pot, two‐step sequential deracemization of racemic sec‐alcohols to optically enriched primary amines throught a photo‐biocatalytic ...
Natalia Antos, Aleksandra Rudzka, Anna Hoser, Tamara Reiter, Wolfgang Kroutil, Paweł Borowiecki   +5 more
wiley   +1 more source

The Distance to the S147 Supernova Remnant

The Astrophysical Journal
In the absence of a parallax distance to a pulsar or a surviving binary in a supernova remnant (SNR), distances to Galactic SNRs are generally very uncertain.
C. S. Kochanek, John C. Raymond, Nelson Caldwell   +2 more
doaj   +1 more source

Ionisation loss and shock excitation of 4420Са I and 4420Са II atoms in cold remnants of type II supernovae

Odessa Astronomical Publications, 2017
The light emission (“glow”) of cold dusty plasma of the remnant of SN 1987A was confirmed by the Hubble Space Telescope observations on 7th January,  1995.
D. N. Doikov, S. M. Andrievsky
doaj   +1 more source

Supernova 1987A: The Birth of a Supernova Remnant [PDF]

International Astronomical Union Colloquium, 2005
SummaryI describe and interpret observations of the rapidly developing impact of the debris of SN1987A with its circumstellar ring.
openaire   +2 more sources

Confinement of the Crab pulsar's wind by its supernova remnant

, 1984
We construct a steady state, spherically symmetric, magnetohydrodynamic model of the Crab nebual. A highly relativistic, positronic pulsar wind is terminated by a strong MHD shock that decelerates the flow and increases its pressure to match boundary ...
C. Kennel, F. Coroniti
semanticscholar   +1 more source

RADIO SPECTRA OF COMPLETE SAMPLE OF GALACTIC SUPERNOVA REMNANT

Odessa Astronomical Publications, 2017
We present radio continuum spectra for 192 Galactic supernova remnants (SNRs) from 220 known and included in Green's (1998) catalog. These spectra include most of measurements available in literature, as well as multi- frequency measurements of nearly ...
S. A. Trushkin
doaj   +1 more source

OB stars near the supernova remnant RCW 86. [PDF]

, 1969
B. E. Westerlund
openalex   +1 more source

The Absorption by the Interstellar Medium of 80 MHz Radio Emission from Galactic Supernova Remnants [PDF]

, 1972
G. Dulk, Ο. B. Slee
openalex   +1 more source