Results 1 to 10 of about 4,978 (213)

The accretion process on protostars

Frontiers in Astronomy and Space Sciences
The process of mass accretion onto Young Stellar Objects (YSOs) plays a fundamental role in determining the final stellar mass and setting the initial conditions for planet formation.
Eleonora Fiorellino, Eleonora Fiorellino, Alice Somigliana   +2 more
doaj   +3 more sources

Gamma-rays from massive protostars [PDF]

, 2009
Fil: Paredes, Josep Maria. Universidad de Barcelona.
Romero, Gustavo Esteban, Araudo, Anabella Teresa, Bosch Ramon, Valentí, Paredes, Josep Maria   +3 more
openaire   +6 more sources

Enlightening the Chemistry of Infalling Envelopes and Accretion Disks Around Sun-Like Protostars: The ALMA FAUST Project

Frontiers in Astronomy and Space Sciences, 2021
The huge variety of planetary systems discovered in recent decades likely depends on the early history of their formation. In this contribution, we introduce the FAUST Large Program which focuses specifically on the early history of solar-like protostars
C. Codella, C. Codella, C. Ceccarelli, C. Chandler, N. Sakai, S. Yamamoto, The FAUST Team   +6 more
doaj   +1 more source

Extension of HOPS out to 500 pc (eHOPS). I. Identification and Modeling of Protostars in the Aquila Molecular Clouds

The Astrophysical Journal Supplement Series, 2023
We present a Spitzer/Herschel focused survey of the Aquila molecular clouds ( d ∼ 436 pc) as part of the eHOPS (extension of the Herschel orion protostar survey, or HOPS, Out to 500 ParSecs) census of nearby protostars.
Riwaj Pokhrel, S. Thomas Megeath, Robert A. Gutermuth, Elise Furlan, William J. Fischer, Samuel Federman, John J. Tobin, Amelia M. Stutz, Lee Hartmann, Mayra Osorio, Dan M. Watson, Thomas Stanke, P. Manoj, Mayank Narang, Prabhani Atnagulov, Nolan Habel, Wafa Zakri   +16 more
doaj   +1 more source

ORPHANED PROTOSTARS [PDF]

The Astrophysical Journal, 2010
We explore the origin of a population of distant companions (~1000 - 5000 AU) to Class I protostellar sources recently found by Connelley and co-workers, who noted that the companion fraction diminished as the sources evolved. Here we present N-body simulations of unstable triple systems embedded in dense cloud cores.
Reipurth, Bo, Mikkola, Seppo, Connelley, Michael, Valtonen, Mauri   +3 more
openaire   +2 more sources

Dynamo in protostars [PDF]

Pramana, 2013
5 ...
Verma, Mahendra K, Karak, Bidya Binay, Kumar, Rohit   +2 more
openaire   +3 more sources

Recent progress with observations and models to characterize the magnetic fields from star-forming cores to protostellar disks

Frontiers in Astronomy and Space Sciences, 2022
In this review article, we aim at providing a global outlook on the progresses made in the recent years to characterize the role of magnetic fields during the embedded phases of the star formation process.
Anaëlle Maury, Anaëlle Maury, Patrick Hennebelle, Josep Miquel Girart, Josep Miquel Girart   +4 more
doaj   +1 more source

Early Planet Formation in Embedded Disks (eDisk). I. Overview of the Program and First Results

The Astrophysical Journal, 2023
We present an overview of the Large Program, “Early Planet Formation in Embedded Disks (eDisk),” conducted with the Atacama Large Millimeter/submillimeter Array (ALMA).
Nagayoshi Ohashi, John J. Tobin, Jes K. Jørgensen, Shigehisa Takakuwa, Patrick Sheehan, Yuri Aikawa, Zhi-Yun Li, Leslie W. Looney, Jonathan P. Williams, Yusuke Aso, Rajeeb Sharma, Jinshi Sai (Insa Choi), Yoshihide Yamato, Jeong-Eun Lee, Kengo Tomida, Hsi-Wei Yen, Frankie J. Encalada, Christian Flores, Sacha Gavino, Miyu Kido, Ilseung Han, Zhe-Yu Daniel Lin, Suchitra Narayanan, Nguyen Thi Phuong, Alejandro Santamaría-Miranda, Travis J. Thieme, Merel L. R. van ’t Hoff, Itziar de Gregorio-Monsalvo, Patrick M. Koch, Woojin Kwon, Shih-Ping Lai, Chang Won Lee, Adele Plunkett, Kazuya Saigo, Shingo Hirano, Ka Ho Lam, Shoji Mori   +36 more
doaj   +1 more source

Identification of A Collapsing Protostar [PDF]

Astrophysics and Space Science, 1994
The globular molecular cloud B335 contains a single, deeply embedded, far-infrared source. Our recent observations of H2CO and CS lines toward this source provide direct kinematic evidence for collapse. Both the intensity and detailed shape of the line profiles match those expected from inside-out collapse inside a radius of 0.036 pc.
Neal J. Evans, Shudong Zhou, Carsten Kömpe, C. M. Walmsley   +3 more
openaire   +1 more source

Submillimetre molecular line observations and modelling of molecular clouds. [PDF]

, 1985
PhDSubmillimetre molecular line observations of molecular clouds in our galaxy are presented, and the data analysed using various alternative cloud models.
Richardson, Kevin John
core   +4 more sources