Results 71 to 80 of about 650 (183)
The Effect of Viscosity on the Temperature of Ae Star Disks
GalaxiesThis study explores the impact of viscous heating on decretion disks around Classical Ae (CAe) stars, with a focus on modeling the disk’s thermal structure.
R. Anusha, T. A. A. Sigut
doaj +1 more source
The Energy Sources, the Physical Properties, and the Mass-loss History of SN 2017dio
The Astrophysical JournalWe study the energy sources, the physical properties of the ejecta and the circumstellar medium (CSM), and the mass-loss history of the progenitor of SN 2017dio, which is a broad-lined Ic (Ic-BL) supernova (SN) having unusual light curves (LCs) and ...
Deng-Wang Shi +3 more
doaj +1 more source
The Astrophysical JournalInteraction between supernova (SN) ejecta and dense circumstellar medium (CSM) with a flat density structure ( ρ ∝ r ^− ^s , s < 1.5) was recently proposed as a possible mechanism behind interacting SNe that exhibit exceptionally long rise times ...
Ryotaro Chiba, Takashi J. Moriya
doaj +1 more source
Supernovae, by Chandra and XMM-Newton
UniverseX-ray emission from supernovae can arise from multiple interactions during their evolution. The immediate explosion is sufficiently energetic to generate X-rays; so, too, is the impact of the shock as it runs into circumstellar matter from earlier mass ...
Eric M. Schlegel
doaj +1 more source
87th Annual Meeting of the Meteoritical Society 2025: Abstracts
Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley +1 more source
Be/X-Ray Binaries: Phenomenology, Variability, and Accretion Dynamics
UniverseBe/X-ray binaries constitute the largest and most diverse subgroup of neutron star high-mass X-ray binaries. These systems feature a rapidly rotating Be star surrounded by a circumstellar decretion disk that serves as the primary reservoir of accreted ...
Pablo Reig
doaj +1 more source
The Astrophysical JournalSuperluminous supernovae (SLSNe) are often modeled as being powered either by a central engine or by strong interaction with dense circumstellar material (CSM).
Guang-Lei Wu, Yun-Wei Yu, Liang-Duan Liu
doaj +1 more source
Detached Circumstellar Matter as an Explanation for Slowly-Rising Interacting Type Ibc Supernovae
The Open Journal of AstrophysicsSome hydrogen-poor (Type Ibc) supernovae (SNe) are known to have massive circumstellar matter (CSM) that are well detached from the star. Using the open-source code \texttt{CHIPS}, we construct a grid of models of SN Ibc interacting with detached CSM ...
Yuki Takei, Daichi Tsuna
doaj +1 more source
Searching for New Objects with the B[e] Phenomenon
GalaxiesObjects with the B[e] phenomenon, whose defining features are the presence of forbidden emission lines and infrared excess coming from circumstellar dust, represent a broad range of evolutionary stages from pre-main-sequence to planetary nebulae.
Aisha Zh. Naurzbayeva +14 more
doaj +1 more source
A Spectroscopic and Photometric Study of MWC 342 and Its B[e] Phenomenon over the Last 40 Years
GalaxiesMWC 342 (V1972 Cyg) was discovered nearly 90 years ago as an early-type emission-line star. It was among the first hot stars whose strong infrared excess was detected in the early 1970s.
Aigerim Zh. Akniyazova +13 more
doaj +1 more source