Results 101 to 110 of about 22,763 (197)

Infrared emission from protostars

open access: yesThe Astrophysical Journal, 1985
The emergent spectral energy distribution at infrared to radio wavelengths is calculated for the simplest theoretical construct of a low-mass protostar. It is shown that the emergent spectrum in the infrared is insensitive to the details assumed for the temperature profile as long as allowance is made for a transition from optically thick to optically ...
F. C. Adams, F. H. Shu
openaire   +1 more source

IPA: Class 0 Protostars Viewed in CO Emission Using JWST

open access: yesThe Astrophysical Journal
We investigate the bright CO fundamental emission in the central regions of five protostars in their primary mass assembly phase using new observations from JWST’s Near-Infrared Spectrograph and Mid-Infrared Instrument. CO line emission images and fluxes
Adam E. Rubinstein   +26 more
doaj   +1 more source

Theory of Disk Accretion onto Magnetic Stars

open access: yesEPJ Web of Conferences, 2014
Disk accretion onto magnetic stars occurs in a variety of systems, including accreting neutron stars (with both high and low magnetic fields), white dwarfs, and protostars.
Lai Dong
doaj   +1 more source

CORINOS. II. JWST-MIRI Detection of Warm Molecular Gas from an Embedded, Disk-bearing Protostar

open access: yesThe Astrophysical Journal
We present James Webb Space Telescope (JWST) Mid-InfraRed Instrument (MIRI) observations of warm CO and H _2 O gas in emission toward the low-mass protostar IRAS 15398-3359, observed as part of the CORINOS program.
Colette Salyk   +10 more
doaj   +1 more source

Identification of solid N2O in interstellar ices using open JWST data

open access: yesAstronomy & Astrophysics
Context. Only six molecules containing an N-O bond are detected in the gaseous phase of the interstellar medium. One of them is nitrous oxide (N2O), which was unsuccessfully searched for in solid form since the launch of the Infrared Space Observatory ...
Karteyeva V.   +4 more
doaj   +1 more source

Episodic accretion, radiative feedback, and their role in low-mass star formation

open access: yes, 2011
It is speculated that the accretion of material onto young protostars is episodic. We present a computational method to include the effects of episodic accretion in radiation hydrodynamic simulations of star formation.
Hubber, David   +2 more
core  

Effect of Magnetic Field on the Accretion Phase of Population III Star Formation

open access: yesThe Astrophysical Journal
We examine the impact of the magnetic field on Population III star formation by varying its strength. We perform simulations with magnetic field strengths ranging from 10 ^−20 G to 10 ^−4 G, in addition to a model without a magnetic field.
Masahiro N. Machida   +2 more
doaj   +1 more source

Search for Binary Protostars

open access: yes, 2000
In an effort to shed more light on the formation process of binary stars, we have started a program to study multiplicity among nearby low- and intermediate-mass protostars using the OVRO Millimeter Array. Here, we describe the project and present the first results on the protostellar core in the Bok globule CB230 (L1177).
Launhardt, R.   +2 more
openaire   +2 more sources

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

ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Molecular Jets and Episodic Accretion in Protostars

open access: yesThe Astronomical Journal
Protostellar outflows and jets are almost ubiquitous characteristics during the mass accretion phase and encode the history of stellar accretion, complex organic molecule (COM) formation, and planet formation.
Somnath Dutta   +24 more
doaj   +1 more source

Home - About - Disclaimer - Privacy