Results 111 to 120 of about 2,154,904 (218)

The Effect of Viscosity on the Temperature of Ae Star Disks

Galaxies
This 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

RADIAL STRUCTURE IN THE TW Hya CIRCUMSTELLAR DISK

, 2011
We present new near-infrared interferometric data from the CHARA array and the Keck Interferometer on the circumstellar disk of the young star, TW Hya, a proposed "transition disk." We use these data, as well as previously published, spatially resolved ...
D. R. Ciardi, ten Brummelaar, T., Monnier, J. D., A. F. Boden, L. Sturmann, R. L. Akeson, A. I. Sargent, Akeson, R. L., R. Millan-Gabet, Millan-Gabet, R., Sargent, A. I., H. McAlister, T. ten Brummelaar, McAlister, H., Ciardi, D. R., Boden, A. F., Turner, N., J. D. Monnier, Sturmann, J., J. Sturmann, N. Turner, Sturmann, L.   +21 more
core   +1 more source

The Energy Sources, the Physical Properties, and the Mass-loss History of SN 2017dio

The Astrophysical Journal
We 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, Shan-Qin Wang, Wen-Pei Gan, En-Wei Liang   +3 more
doaj   +1 more source

Characterization of Supernovae Interacting with Dense Circumstellar Matter with a Flat Density Profile

The Astrophysical Journal
Interaction 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

Circumstellar interaction in Type IIn supernovae

, 2013
Type IIn supernovae have bright optical emission and high bolometric luminosities. Due to their high mass loss, their are expected to have dense circumstellar interaction, thus produce bright radio and X-ray emission. We aim to carry out systematic study
Chandra, Poonam, Chevalier, Roger A., Soderberg, Alicia M., Chugai, Nikolai, Fransson, Claes   +4 more
core   +1 more source

Spectroscopic diagnosis of extended circumstellar regions about early type stars

, 2019
Nela Dvořáková 19.7.2019 1 Abstract We study a representative of a diverse group of stars exhibiting the B[e] phe- nomenon, designated MWC 939. This object might be an important link be- tween the stage of the asymptotic giant branch and planetary nebula
Dvořáková, Nela
core  

Unravelling the Asphericities in the Explosion and Multifaceted Circumstellar Matter of SN 2023ixf

The Astrophysical Journal
Abstract We present a detailed investigation of photometric, spectroscopic, and polarimetric observations of the Type II SN 2023ixf. Earlier studies have provided compelling evidence for a delayed shock breakout from a confined dense circumstellar matter (CSM) enveloping the progenitor star.
Avinash Singh, Rishabh Singh Teja, Takashi J. Moriya, Keiichi Maeda, Koji S Kawabata, Masaomi Tanaka, Ryo Imazawa, Tatsuya Nakaoka, Anjasha Gangopadhyay, Masayuki Yamanaka, Vishwajeet Swain, D. K. Sahu, G. C. Anupama, Brajesh Kumar, Ramya M. Anche, Yasuo Sano, A. Raj, V. K. Agnihotri, Varun Bhalerao, D. Bisht, M. S. Bisht, K. Belwal, S. K. Chakrabarti, Mitsugu Fujii, Takahiro Nagayama, Katsura Matsumoto, Taisei Hamada, Miho Kawabata, Amit Kumar, Ravi Kumar, Brian K. Malkan, Paul Smith, Yuta Sakagami, Kenta Taguchi, Nozomu Tominaga, Arata Watanabe   +35 more
openaire   +3 more sources

A Magnetar Engine and Circumstellar Medium Interaction: Synergistic Effects in Producing Superluminous Supernovae

The Astrophysical Journal
Superluminous 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

Size distribution of circumstellar disks in the Trapezium cluster

, 2005
In this paper we present results on the size distribution of circumstellar disks in the Trapezium ...
J. Alves, S. M. Vicente
core   +1 more source

Fast X-Ray Transient EP260321a: Shock Breakout through an Extended Circumstellar Matter

The Astrophysical Journal Letters
The Einstein Probe (EP) has discovered a fast X-ray transient, EP260321a, whose optical counterpart was subsequently classified as a broad-lined Type Ic supernova.
Maokai Hu, Yi Yang, Xiaofeng Wang
doaj   +1 more source