Results 151 to 160 of about 1,290 (180)

BIPOLAR MOLECULAR OUTFLOWS FROM YOUNG STARS AND PROTOSTARS

Annual Review of Astronomy and Astrophysics, 1996
▪ Abstract  A violent outflow of high-velocity gas is one of the first manifestations of the formation of a new star. Such outflows emerge bipolarly from the young object and involve amounts of energy similar to those involved in accretion processes.
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Feedback from the Vicinity of Massive Protostars in the First Star Formation

Proceedings of the International Astronomical Union, 2020
AbstractMany simulations have been performed to elucidate the formation process of first stars. In first star formation, radiative feedback is a key process in determining stellar masses. However, previous simulations which follow the feedback process don’t resolve the small scale ( 10 AU) to realize long-term calculation, and the structure near ...
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Radiative feedback from primordial protostars and final mass of the first stars

AIP Conference Proceedings, 2012
In this contribution, we review our efforts toward understanding the typical mass-scale of primordial stars. Our direct numerical simulations show that, in both of Population III.1 and III.2 cases, strong UV stellar radiative feedback terminatesmass accretion onto a protostar.
Takashi Hosokawa, Kazuyuki Omukai, Naoki Yoshida, Harold W. Yorke   +3 more
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Magnetic Reconnection and Flares in Star Forming Regions: Flares in Protostars

1998
The solar X-ray satellite, Yohkoh, has found extensive evidence for magnetic reconnection in solar corona. Here we extend the magnetic reconnection model of solar flares to hard X-ray flares observed in star forming regions. A new ingredient is a protostellar disk which can inject helicity into the magnetosphere if the disk is threaded by the dip ole ...
Mitsuru Hayashi, Kazunari Shibata, Ryoji Matsumoto   +2 more
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Hydrogen flash divides accreting objects into T-Tauri stars and embedded protostars

AIP Conference Proceedings, 1997
The birth of stars at the low mass end of main sequence is investigated. Possible deuterium-burning shells slightly increase the critical mass for H burning which is about 0.08 solar masses for homogeneous stellar models with pop I composition, since the degree of central condensation is higher for inhomogeneous models than for those of homogeneous one.
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A Galactic survey of radio jets from massive protostars

Monthly Notices of the Royal Astronomical Society, 2021
S J D Purser, S L Lumsden, M G Hoare
exaly  

The CALYPSO IRAM-PdBI survey of jets from Class 0 protostars

Astronomy and Astrophysics, 2021
L Podio, B Tabone, F Gueth
exaly  

Star Formation: Protostars and Planets II.

Science, 1986
openaire   +2 more sources

A multi-epoch study of radio continuum emission from massive protostars

Monthly Notices of the Royal Astronomical Society, 2021
S L Lumsden, M G Hoare, S Kurtz
exaly  

The relationship between mid-infrared and sub-millimetre variability of deeply embedded protostars

Monthly Notices of the Royal Astronomical Society, 2020
CARLOS Contreras Pena, Doug Johnstone, Giseon Baek   +2 more
exaly