Results 51 to 60 of about 2,154,904 (218)
The Circumstellar Matter Around OH44.8-2.3
, 2000 To appear in ``Asymmetrical Planetary Nebulae II: from Origins to Microstructures,'' ASP Conference Series, Vol. 199, 2000; J.H. Kastner, N. Soker, & S.A.
Bobrowsky, M. +3 more
openaire +2 more sources
Circumstellar matter, with particular reference to jets and molecular flows [PDF]
Symposium - International Astronomical Union, 1987 Circumstellar matter exists in many forms, such as winds from early and from late type stars, in infra-red sources and OH and H2O masers, in X-ray sources and jets, and molecular flows and Herbig-Haro objects. There is considerable diversity in the nature of the starlike bodies that underlie these phenomena.
openaire +2 more sources
Clusters Stagnating During Condensation: Metastable Material or a Separate State of Matter?
Annalen der Physik, Volume 537, Issue 10, October 2025.Condensation stagnation, that is, the existence of a delay between nucleation and growth during the gas‐phase particle formation, is a crucial phenomenon, which manifests itself as the presence of supercritical clusters in resulting particulates. The light emission signature of stagnant clusters is identified in the magnesium particle flame in air, and,
Nicholas R. Jaramillo +4 more
wiley +1 more source
The structure of circumstellar shells [PDF]
, 1993 This document provides a report on research activities carried out with the support of NASA grant NAG 5-1174, the Structure of Circumstellar Shells, funded under the Astrophysics Data Program.
Fix, John D.
core
Environmental dependence of Type IIn supernova properties [PDF]
, 2023 Type IIn supernovae occur when stellar explosions are surrounded by dense hydrogen-rich circumstellar matter. The dense circumstellar matter is likely formed by extreme mass loss from their progenitors shortly before they explode.
Hanindyo Kuncarayakti +23 more
core +1 more source
On the Circumstellar Matter Distribution around Herbig Ae/Be Stars
The Astrophysical Journal, 1997 The spectral energy distributions (SEDs) observed in Herbig Ae/Be stars are critically analyzed in connection with a spherically symmetric model for matter distribution around the central objects. The possibility that the dusty component is described by an MRN-DL mixture (see the work of Mathis, Rumpl, and Nordsiek; Draine and Lee) and is constituted ...
PEZZUTO S. +2 more
openaire +2 more sources
Circumstellar grain formation [PDF]
, 1986 Dust formation around cool giant and supergiant stars is examined in terms of grain formulation. Optical properties of small clusters, molecular physics of cluster nucleation and growth, circumstellar mass flows, and their application to alpha Ori are ...
Draine, B. T.
core
Laboratory studies of circumstellar and interstellar materials
, 2009 When the most primitive types of meteorite (chondrites) and interplanetary dust particles (IDPs) formed in the solar protoplanetary disk (solar nebula), all of them incorporated at least two types of presolar material: interstellar organic matter and ...
C.M.O.D. Alexander
core +1 more source
Infall Explains the Disk Kinematics of AB Aur without Gravitational Instability
The Astrophysical Journal LettersLate-stage infall onto protoplanetary disks can produce large-scale spiral arms. In this Letter, we used 3D smoothed particle hydrodynamics and radiative transfer simulations to study the kinematic perturbations induced in disks by infalling material. We
Josh Calcino +2 more
doaj +1 more source
Ion‐Scale Characteristics of the Martian Magnetic Pile‐Up Boundary Layer
Geophysical Research Letters, Volume 52, Issue 3, 16 February 2025.Abstract The Martian magnetic pile‐up boundary (MPB) delineates the interface between the magnetosheath and the induced magnetosphere, but its global ion‐scale characteristics remaining unclear. Utilizing a three‐dimensional Hall magnetohydrodynamic (MHD) model, this study aims to reveal the features of the MPB layer, including magnetic field, current ...
Shibang Li +12 more
wiley +1 more source