Results 21 to 30 of about 23,880 (220)

A low optical depth region in the inner disk of the HerbigAe star HR5999 [PDF]

, 2011
Circumstellar disks surrounding young stars are known to be the birthplaces of planets, and the innermost astronomical unit is of particular interest.
A. Isella, A. Mérand, A. Natta, Bagnoli, Benisty, Chelli, de Winter, Dullemond, E. Thiébaut, Eiroa, Eisner, Eisner, Eisner, F. Malbet, F. Massi, G. Weigelt, Grady, Haubois, Henning, Hillenbrand, Hubrig, Isella, Isella, J. L. Monin, J. P. Berger, Jennison, Kama, Kraus, Kraus, L. Testi, Lachaume, Le Bouquin, Le Bouquin, M. Benisty, M. Vannier, Millan-Gabet, Monnier, Monnier, Monnier, Natta, P. J. V. Garcia, Pauls, Perez, Perez, Petrov, Pollack, Preibisch, Renard, Rodrigues, S. Renard, Schöller, Siebenmorgen, Sitko, Stecklum, Strong, Tannirkulam, Tannirkulam, Tatulli, Thiébaut, Tjin, van Boekel, Weingartner, Zhao   +62 more
core   +3 more sources

THE PROTOPLANETARY SYSTEM FORMATION AS A RESULT OF THE MERGING OF CLOSE BINARY STAR CONSISTING OF THE LOW MASS PRE-MS STARS

Odessa Astronomical Publications, 2017
The mechanism of protoplanetary system formation as a result of a merge of binary star consisting of the low mass (0.5-1M⊙) pre-MS stars is considered. During the merging the more massive component is destroyed. The substance of the destroyed component
F. V. Sirotkin, V. G. Karetnikov
doaj   +1 more source

Formation Process of the Circumstellar Disk: Long-term Simulations in the Main Accretion Phase of Star Formation

, 2010
The formation and evolution of the circumstellar disk in unmagnetized molecular clouds is investigated using three-dimensional hydrodynamic simulations from the prestellar core until the end of the main accretion phase.
Bate, Bodenheimer, Boley, Calvet, Caselli, Duffin, Durisen, Dutrey, Enoch, Gammie, Goodwin, Hayashi, Inutsuka, Kratter, Larson, Machida, Machida, Machida, Machida, Masahiro N. Machida, Masunaga, Masunaga, Matsumoto, Matzner, Mellon, Mellon, Meyer, Najita, Natta, Saigo, Shu-ichiro Inutsuka, Tomoaki Matsumoto, Truelove, Vorobyov, Watson   +34 more
core   +1 more source

Testing circumstellar disk lifetimes in young embedded clusters associated with the Vela Molecular Ridge [PDF]

, 2010
Context. The Vela Molecular Ridge hosts a number of young embedded star clusters in the same evolutionary stage. Aims. The main aim of the present work is testing whether the fraction of members with a circumstellar disk in a sample of clusters in the ...
Codella, Claudio, Di Carlo, Elisa, Gomes, Joana, Massi, Fabrizio, Testi, Leonardo, Vanzi, Leonardo   +5 more
core   +3 more sources

Modeling of large-scale disk perturbation eclipses of UX Ori stars with the puffed-up inner disks

Open Astronomy, 2022
Eclipses of UX Ori stars by compact gas–dust clouds and large-scale circumstellar disk perturbations are modeled. A flared disk and a disk with a puffing-up in the dust sublimation zone are considered.
Shulman Sergey, Grinin Vladimir
doaj   +1 more source

Near-Infrared Imaging Polarimetry of Inner Region of GG Tau A Disk

, 2016
By performing non-masked polarization imaging with Subaru/HiCIAO, polarized scattered light from the inner region of the disk around the GG Tau A system was successfully detected in the $H$ band with a spatial resolution of approximately 0.07$\arcsec ...
Abe, Lyu, Akiyama, Eiji, Brandner, Wolfgang, Brandt, Timothy D., Carson, Joseph C., de Leon, Jerome, Egner, Sebastian, Feldt, Markus, Goto, Miwa, Grady, Carol A., Guyon, Olivier, Hashimoto, Jun, Hayano, Yutaka, Hayashi, Masahiko, Hayashi, Saeko S., Henning, Thomas, Hodapp, Klaus W., Ishi, Miki, Iye, Masanori, Janson, Markus, Kandori, Ryo, Knapp, Gillian R., Kudo, Tomoyuki, Kusakabe, Nobuhiko, Kuzuhara, Masayuki, Kwon, Jungmi, Matsuo, Taro, Mayama, Satoshi, Mcelwain, Michael W., Miyama, Shoken, Morino, Jun-Ichi, Moro-Martin, Amaya, Nishimura, Tetsuo, Oh, Daehyeon, Pyo, Tae-Soo, Rafikov, Roman, Serabyn, Eugene, Suenaga, Takuya, Suto, Hiroshi, Suzuki, Ryuji, Takahashi, Yasuhiro H., Takami, Hideki, Takami, Michihiro, Takato, Naruhisa, Tamura, Motohide, Tang, Ya-wen, Terada, Hiroshi, Thalmann, Christian, Turner, Edwin L., Usuda, Tomonori, Watanabe, Makoto, Wisniewski, John, Yamada, Toru, Yang, Yi   +53 more
core   +1 more source

Recurrent Planet Formation and Intermittent Protostellar Outflows Induced by Episodic Mass Accretion

, 2011
The formation and evolution of a circumstellar disk in magnetized cloud cores is investigated from prestellar core stage until sim 10^4 yr after protostar formation.
Banerjee, Bate, Bate, Bodenheimer, Crutcher, Dunham, Durisen, D’Angelo, Enoch, Enoch, Evans, Goodwin, Hayashi, Inutsuka, Kley, Larson, Machida, Machida, Machida, Machida, Machida, Machida, Machida, Machida, Masahiro N. Machida, Masunaga, Matsumoto, Matsumoto, Matsumoto, Nakano, Saigo, Shu, Shu-ichiro Inutsuka, Tassis, Tassis, Tassis, Thalmann, Tomisaka, Tomoaki Matsumoto, Truelove, Vorobyov, Vorobyov, Vorobyov   +42 more
core   +1 more source

Detecting planets in protoplanetary disks: A prospective study [PDF]

, 2002
We investigate the possibility to find evidence for planets in circumstellar disks by infrared and submillimeter interferometry. We present simulations of a circumstellar disk around a solar-type star with an embedded planet of 1 Jupiter mass.
F. Gueth, S. Wolf, T. Henning, W. Kley, Wolf S.   +4 more
core   +2 more sources

JWST Imaging of the Closest Globular Clusters—VI. The Lowest‐Mass Objects in M 4 and the Galactic Bulge

Astronomische Nachrichten, Volume 346, Issue 9, November 2025.
ABSTRACT We present James Webb Space Telescope observations of M 4—the closest globular cluster—that probe the lower Main Sequence down to the hydrogen‐burning limit. The unveiled stellar sequence reaches much fainter luminosities than previously possible, revealing a few extremely red objects that are consistent with brown dwarfs as cool as Teff∼1000K$
L. R. Bedin, R. Gerasimov, A. Calamida, M. Libralato, M. Scalco, D. Nardiello, M. Griggio, D. Apai, J. Anderson, A. Bellini, A. Burgasser   +10 more
wiley   +1 more source

Early Planet Formation in Embedded Disks (eDisk). XIII. Aligned Disks with Nonsettled Dust around the Newly Resolved Class 0 Protobinary R CrA IRAS 32

The Astrophysical Journal
Young protostellar binary systems, with expected ages less than ∼10 ^5 yr, are little modified since birth, providing key clues to binary formation and evolution. We present a first look at the young, Class 0 binary protostellar system R CrA IRAS 32 from
Frankie J. Encalada, Leslie W. Looney, Shigehisa Takakuwa, John J. Tobin, Nagayoshi Ohashi, Jes K. Jørgensen, Zhi-Yun Li, Yuri Aikawa, Yusuke Aso, Patrick M. Koch, Woojin Kwon, Shih-Ping Lai, Chang Won Lee, Zhe-Yu Daniel Lin, Alejandro Santamaría-Miranda, Itziar de Gregorio-Monsalvo, Nguyen Thi Phuong, Adele Plunkett, Jinshi Sai (Insa Choi), Rajeeb Sharma, Hsi-Wei Yen, Ilseung Han   +21 more
doaj   +1 more source