Results 81 to 90 of about 25,802 (223)

Study of variable extinction of hot stars with circumstellar dust shells [PDF]

Various projects on the topic of hot stars with circumstellar dust are reported. The surface temperature, wind speed, and interstellar reddening were determined for the variable WC7 star HD 193793.

core   +1 more source

Dusty Blue Supergiants: News from High-Angular Resolution Observations

Advances in Astronomy, 2014
An overview is presented of the recent advances in understanding the B[e] phenomenon among blue supergiant stars in light of high-angular resolution observations and with an emphasis on the results obtained by means of long baseline optical stellar ...
W. J. de Wit, R. D. Oudmaijer, J. S. Vink   +2 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

Evidence of V-band polarimetric separation of carbon stars at high Galactic latitude

, 2010
Polarization is an important indicator of stellar evolution, especially for stars evolving from red-giant stage to planetary nebulae. However, not much is known about the polarimetric properties of the carbon-enhanced metal-poor (CEMP) stars, although ...
Aoki, Aoki, Aoki, Bartkevicius, Beers, Beichmann, Clarke, Daniel, Drake, Eggen, Goswami, Harrington, Leonard, Parthasarathy, Parthasarathy, Parthasarathy, Rautela, Raveendran, Rowan-Robinson, Serkowski, Skinner, Weitenbeck   +21 more
core   +1 more source

The evolution of dust in the terrestrial planet region of circumstellar disks around young stars.

, 2021
D. Dutkevitch
openalex   +2 more sources

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

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

Hα Emission among Evolved FGKM Stars: A Compendium from the Literature

The Astronomical Journal
Emission in the wings of the H α line among late-type giant stars occurs as a consequence of conditions in their chromospheres. Data from the literature have been used to document the incidence of H α emission among Population I giant stars as a function
Graeme H. Smith
doaj   +1 more source

Photophoretic Structuring of Circumstellar Dust Disks

, 2008
We study dust accumulation by photophoresis in optically thin gas disks. Using formulae of the photophoretic force that are applicable for the free molecular regime and for the slip-flow regime, we calculate dust accumulation distances as a function of ...
Augereau J.-C., Borysow A., Hidy G. M., Liseau R., Oliver Krauss, Taku Takeuchi, Tsuji T., Tsuji T.   +7 more
core   +1 more source

Debris Disk Radiative Transfer Simulation Tool (DDS)

, 2005
A WWW interface for the simulation of spectral energy distributions of optically thin dust configurations with an embedded radiative source is presented.
Hillenbrand, L. A., Wolf, S.
core   +1 more source