Results 41 to 50 of about 10,106 (229)

Asymmetric mass-loss from the white dwarf WD 0253+209 : Secret revealed

open access: yesBibechana, 2012
Dust structures around the white dwarf WD 0253+209 is studied in 100 and 60 micron infrared image. These images are received from Infrared Astronomical Satellite Survey (IRAS Survey).
Binil Aryal
doaj   +3 more sources

The interstellar medium

open access: yes
This is a pre-print of a chapter for the Encyclopedia of Astrophysics (edited by I. Mandel, section editor S.
openaire   +3 more sources

A Nest of Diffuse Interstellar Bands—Likely of Common Origin

open access: yesThe Astronomical Journal
Diffuse interstellar bands (DIBs) have been proposed to cluster into distinct “families” each potentially linked to a single carrier molecule. In our study, we focus on identifying such a family within the spectral range of approximately 4945–4990 Å ...
J. Krełowski   +2 more
doaj   +1 more source

A systematic study of radiative torque grain alignment in the diffuse interstellar medium [PDF]

open access: green, 2020
Stefan Reißl   +5 more
openalex   +1 more source

Revisiting CN− Formation Mechanisms in Electron Collisions with Benzonitrile

open access: yesChemPhysChem, Volume 27, Issue 1, January 2026.
This study explores negative ion formation via electron attachment, revealing CN− formation at 3.0 and 7–10 eV. Dissociation pathways are analyzed using G4(MP2) and CASPT2 calculations, highlighting the coupling between the π4* and σ* resonances critical for interstellar chemistry. Radiation‐induced processes in the aromatic cyano compound benzonitrile
Rodrigo Rodrigues   +8 more
wiley   +1 more source

Dust/ice mixing in cold regions and solid-state water in the diffuse interstellar medium [PDF]

open access: green, 2020
А. В. Потапов   +3 more
openalex   +1 more source

Exploring the Effects of Reduced Gravitational Field Impacts on Convective Heat Transfer: A Comprehensive Review

open access: yesHeat Transfer, Volume 55, Issue 1, Page 764-774, January 2026.
ABSTRACT This review explores the impact of gravitational instability on convective heat transfer, integrating existing research results and theoretical models. Gravitational instability is vital in promoting or hindering convective actions in different systems, such as atmospheric events, ocean currents, and industrial processes.
Hossam A. Nabwey   +3 more
wiley   +1 more source

Cherenkov Telescope Array Observatory: Die Zukunft der Gammaastronomie

open access: yesPhysik in unserer Zeit, Volume 57, Issue 1, Page 10-18, January 2026.
Im Jahr 1989 hat das Wipple‐Observatorium die erste Quelle hochenergetischer Gammastrahlung entdeckt. 2002 waren dann sechs Quellen bekannt, 2024 schon mehr als 300. Und das ist immer noch lediglich die Spitze des Eisbergs in der jungen Geschichte der Gammaastronomie.
Daniela Hadasch, Daniel Mazin
wiley   +1 more source

Quasiperiodic Oscillations in GRB 210514A: a Case of a Newborn Supramassive Precessing Magnetar Collapsing into a Black Hole?

open access: yesThe Astrophysical Journal
Magnetar is proposed as one of the possible central engines for a gamma-ray burst (GRB). Recent studies show that if a magnetar has a rotational axis misaligned from the magnetic one, a periodic lightcurve pattern is expected with a period of seconds to ...
Le Zou, Ji-Gui Cheng
doaj   +1 more source

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