Results 81 to 90 of about 772 (182)

VLTI/MATISSE observations of the hot dust around β Pictoris Observing faint objects with MATISSE★

Astronomy & Astrophysics
Context. Hot exozodiacal dust has been detected in approximately 20% of nearby main-sequence stars, indicating that it is a common feature in extrasolar planetary systems. However, their spatial distribution and grain properties remain poorly understood.
Priolet P., Augereau J.-C., Milli J., Matter A., Lopez B., Beust H., Varga J., Boley P., Danchi W.-C., Foteini L., Henning T., Houllé M., Letessier M., Millour F., Scigliuto J., Weigelt G., Wolf S., Absil O., Berger J.-P., Bouarour Y.-I., Bourdarot G., Defrère D., Desgrange C., Le Bouquin J.-B., Iglesias D., Stuber T. A., Berio P., Bettonvil F., Cruzalèbes P., Heininger M., Isbell J. W., Lagarde S., Meilland A., Petrov R., Robbe-Dubois S.   +34 more
doaj   +1 more source

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

The Morphology of the Asteroidal Dust around White Dwarf Stars: Optical and Near-infrared Pulsations in G29-38

The Astrophysical Journal
More than 36 yr have passed since the discovery of the infrared excess from circumstellar dust orbiting the white dwarf G29-38, which at 17.5 pc it is the nearest and brightest of its class.
Ted von Hippel, J. Farihi, J. L. Provencal, S. J. Kleinman, J. E. Pringle, A. Swan, G. Fontaine, J. J. Hermes, J. Sargent, Z. Savery, W. Cooper, V. Kim, V. Kozyreva, M. Krugov, A. Kusakin, A. Moss, W. Ogloza, Erika Pakštienė, A. Serebryanskiy, Eda Sonbas, B. Walter, M. Zejmo, S. Zola   +22 more
doaj   +1 more source

THE SPECTROSCOPY OF THE PULSATING CARBON STAR R Lep

Odessa Astronomical Publications, 2017
The first results of detailed spectroscopy are presented for carbon Mira R Leporis. This long-period variable is undergoing deep fadings, apparently caused by dust formation around the star.
L. Zacs, O. Alksnis
doaj   +1 more source

Very Late-time JWST and Keck Spectra of the Oxygen-rich Supernova 1995N

The Astrophysical Journal
We present new JWST/MIRI Medium Resolution Spectroscopy and Keck spectra of SN 1995N obtained in 2022–2023, more than 10,000 days after the supernova (SN) explosion. These spectra are among the latest direct detections of a core-collapse SN, both through
Geoffrey C. Clayton, R. Wesson, Ori D. Fox, Melissa Shahbandeh, Alexei V. Filippenko, Bryony Nickson, Michael Engesser, Schuyler D. Van Dyk, WeiKang Zheng, Thomas G. Brink, Yi Yang, Tea Temim, Nathan Smith, Jennifer Andrews, Chris Ashall, Ilse De Looze, James M. Derkacy, Luc Dessart, Michael Dulude, Eli Dwek, Ryan J. Foley, Suvi Gezari, Sebastian Gomez, Shireen Gonzaga, Siva Indukuri, Jacob Jencson, Joel Johansson, Mansi Kasliwal, Zachary G. Lane, Ryan Lau, David Law, Anthony Marston, Dan Milisavljevic, Richard O’Steen, Justin Pierel, Armin Rest, Arkaprabha Sarangi, Matthew Siebert, Michael Skrutskie, Lou Strolger, Tamás Szalai, Samaporn Tinyanont, Qinan Wang, Brian Williams, Lin Xiao, Szanna Zsíros   +45 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

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

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

86th Annual Meeting of the Meteoritical Society (2024)

Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source

Submillimetre observations of circumstellar dust

, 1989
Bibliography: p. 113-120.
openaire   +2 more sources