Results 101 to 110 of about 4,353 (222)

Circumstellar grain formation

, 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  

Formation and destruction of dust grains in circumstellar regions [PDF]

Symposium - International Astronomical Union, 1987
The existence of circumstellar dust in late-type stars is connected with stellar pulsations since periodic shocks accompanying pulsations seem to be the most probable mechanism of the gas density increase needed for condensation of dust particles in outer layers of the stellar atmosphere.
openaire   +1 more source

Characterizing circumstellar disk around young stars

, 2010
The circumstellar disks play a fundamental role in star and planet formation process. Studies on circumstellar disks are generally carried on following two viable approaches: "statistical" studies, where a large samples of sources are measured to ...
Schisano, Eugenio
core  

Unveiling the progenitor of SN 2023ixf: Circumstellar dust and its implications for the red supergiant problem

Astronomy & Astrophysics
The nearby Type II supernova SN 2023ixf offers a critical test of the long-standing ‘red supergiant problem’ – the apparent absence of high-mass red-supergiant progenitors in pre-explosion imaging.
Ragosta Fabio, Simongini Andrea, Ambrosino Filippo, Imbrogno Matteo, Illiano Giulia, Piranomonte Silvia, Melandri Andrea, Di Palma Irene, Papitto Alessandro, Ghedina Adriano, Cecconi Massimo, Leone Francesco, González Manuel, Pérez Ventura Héctor, Hernandez Diaz Marcos, San Juan José   +15 more
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

Circumstellar Dust in Symbiotic Miras during Obscuration Events

, 2007
International audienceWe present a study of circumstellar dust properties in the symbiotic Miras RX Pup, V835 Cen, RR Tel and R Aqr, which show obscuration events during the observed time intervals.
Kotnik-Karuza, D., Friedjung, M., Jurkic, T.   +2 more
core  

The interstellar dust properties of nearby galaxies

, 2018
International audienceThis article gives an overview of the constitution, physical conditions, and observables of dust in the interstellar medium of nearby galaxies.
Galametz, Maud, Galliano, Frédéric, Jones, Anthony P.   +2 more
core   +1 more source

Early Planet Formation in Embedded Disks (eDisk). XVII. A Compact but Structured Keplerian Disk and Large-scale Streamers Revealed in the Class I Protostellar System IRAS 04169+2702

The Astrophysical Journal
We present high-resolution (∼0 $\mathop{.}\limits^{^{\prime\prime} }$ 05; 8 au) dust continuum and molecular line observations toward the Class I protostellar system IRAS 04169+2702 in the Taurus B213 region, as part of the Atacama Large Millimeter ...
Ilseung Han, Woojin Kwon, Yusuke Aso, Nagayoshi Ohashi, John J. Tobin, Jes K. Jørgensen, Shigehisa Takakuwa, Leslie W. Looney, Yuri Aikawa, Christian Flores, Itziar de Gregorio-Monsalvo, Patrick M. Koch, Chang Won Lee, Jeong-Eun Lee, Zhi-Yun Li, Zhe-Yu Daniel Lin, Jinshi Sai, Travis J. Thieme, Jonathan P. Williams, Sacha Gavino, Miyu Kido, Shih-Ping Lai, Nguyen Thi Phuong, Alejandro Santamaría-Miranda, Hsi-Wei Yen   +24 more
doaj   +1 more source

Atacama Large Aperture Submillimeter Telescope (AtLAST) science: Our Galaxy [version 1; peer review: 2 approved]

Open Research Europe
As we learn more about the multi-scale interstellar medium (ISM) of our Galaxy, we develop a greater understanding for the complex relationships between the large-scale diffuse gas and dust in Giant Molecular Clouds (GMCs), how it moves, how it is ...
Pamela Klaassen, Maria Beltrán, Alessio Traficante, Mark Booth, Kate Pattle, Jonathan Marshall, Joshua Lovell, Brandt Gaches, Alvaro Hacar, Nicolas Peretto, Caroline Bot, Doris Arzoumanian, Thomas Stanke, Gaspard Duchêne, Ana Duarte Cabral, Antonio Hales, David Eden, Patricia Luppe, Jens Kauffmann, Elena Redaelli, Sebastian Marino, Álvaro Sánchez-Monge, Andrew Rigby, Dmitry Semenov, Eugenio Schisano, Mark Thompson, Silvia Spezzano, Claudia Cicone, Friedrich Wyrowski, Martin Cordiner, Tony Mroczkowski, Doug Johnstone, Luca Di Mascolo, Minju Lee, Eelco van Kampen, Thomas Maccarone, Daizhong Liu, Matthew Smith, Amélie Saintonge, Sven Wedemeyer, Alexander Thelen   +40 more
doaj   +1 more source

Imaging the circumstellar dust around AGB stars with PolCor

, 2011
Aims. The aim of this paper is to investigate how the new imaging Polarimeter and Coronograph (PolCor) at the Nordic Optical Telescope** (NOT) can be used in the study of circumstellar structures around AGB stars. The purpose is to prepare for a study of
H. Olofsson, Olofsson, G., Schöier, Fredrik L., G. Olofsson, Olofsson, Hans, F. L. Schöier, Maercker, M., Olofsson, G.,, Olofsson, H.,, Schoier, F. L., Ramstedt, S., Sch\uf6ier, Fredrik, Schöier, Fredrik,, Olofsson, Hans,, Maercker, Matthias, S. Ramstedt, Maercker, Matthias,, M. Maercker, Olofsson, Göran,, Ramstedt, S.,   +19 more
core   +1 more source