Results 81 to 90 of about 615 (185)

Accelerating star formation of dense clumps

open access: yesAstronomy & Astrophysics
We present a statistical framework that establishes an accelerating star formation scenario for dense clumps using ATLASGAL and ALMAGAL samples. By employing the cumulative distribution function of dust temperature as a monotonic evolutionary indicator ...
Liu Xunchuan
doaj   +1 more source

ngVLA Synthetic Observations of Ionized Gas in Massive Protostars

open access: yesThe Astrophysical Journal
Massive-star formation involves significant ionization in the innermost regions near the central object, such as gravitationally trapped H ii regions, jets, ionized disks, or winds. Resolved observations of the associated continuum and recombination line
Jesús M. Jáquez-Domínguez   +13 more
doaj   +1 more source

Tracking Protostellar Variability in Massive Protoclusters with ALMA. I. Insights from QUARKS and MaMMOtH

open access: yesThe Astrophysical Journal
Millimeter/submillimeter variability is often attributed to dynamical disk-mediated accretion, yet detection is limited to low-mass protostars in nearby clouds.
Yuhan Yang   +24 more
doaj   +1 more source

Editorial: The Role of Magnetic Fields in the Formation of Stars

open access: yesFrontiers in Astronomy and Space Sciences, 2020
Derek Ward-Thompson   +3 more
doaj   +1 more source

The Outflow of The Protostar in B335. I.

open access: yesThe Astronomical Journal
Abstract The isolated globule B335 contains a single, low-luminosity Class 0 protostar associated with a bipolar nebula and outflow system seen nearly perpendicular to its axis. We observed the innermost regions of this outflow as part of JWST/NIRCam Guaranteed Time Observations program 1187, primarily intended for wide-field slitless ...
Klaus W. Hodapp   +12 more
openaire   +3 more sources

The Protostars in Orion: Characterizing the Properties of Their Magnetized Envelopes

open access: yesThe Astrophysical Journal
We present a study connecting the physical properties of protostellar envelopes to the morphology of the envelope-scale magnetic field. We used the Atacama Large Millimeter/submillimeter Array (ALMA) polarization observations of 61 young protostars at 0 ...
Bo Huang   +19 more
doaj   +1 more source

The infrared Galactic disk: What have we learned?

open access: yesEPJ Web of Conferences, 2012
A brief overview is given of some of the new insights we have achieved from the Spitzer/GLIMPSE/MIPSGAL surveys of the Galactic plane. Particular emphasis is given to infrared bubbles, rapidly accreting protostars, infrared dark clouds, and diffuse PAH ...
Churchwell E.
doaj   +1 more source

Protostellar Disk Formation Regimes: Angular Momentum Conservation versus Magnetic Braking

open access: yesThe Astrophysical Journal Letters
Protostellar disks around young protostars exhibit diverse properties, with their radii ranging from less than ten to several hundred astronomical units.
Hsi-Wei Yen, Yueh-Ning Lee
doaj   +1 more source

Gamma-rays from massive protostars

open access: yes, 2009
Fil: Paredes, Josep Maria. Universidad de Barcelona.
Romero, Gustavo Esteban   +3 more
openaire   +5 more sources

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