Results 11 to 20 of about 3,519 (205)
The Outflow of The Protostar in B335. I. [PDF]
The Astronomical JournalThe 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.
Klaus W. Hodapp +12 more
doaj +6 more sources
An Outbursting Protostar: The Environment of L1251 VLA 6 [PDF]
The Astrophysical JournalYoung protostars that undergo episodic accretion can provide insight into the impact on their circumstellar environments while matter is accreted from the disk onto the protostar.
Ava Nederlander +8 more
doaj +4 more sources
Multiple Outflows around a Single Protostar IRAS 15398−3359
The Astrophysical JournalWe present the results of our mosaic observations of a single Class 0 protostar IRAS 15398−3359 with the Atacama Compact Array in the CO J = 2–1 line.
Jinshi Sai +6 more
doaj +2 more sources
Connecting a Magnetized Disk to a Convective Low-mass Protostar: A Global 3D Model of Boundary Layer Accretion [PDF]
The Astrophysical JournalIn the early stages of star formation, boundary layer accretion, where protostars accrete material from disks extending down to their surfaces, plays a crucial role.
Shinsuke Takasao +3 more
doaj +2 more sources
IPA: Accretion Rate of a Low-mass Class 0 Protostar, Measured via Mid-IR Fluorescent OH Emission
The Astrophysical JournalThe earliest stages of star formation are highlighted by complex interactions between accretion, outflow, and radiative processes, which shape the chemical and physical environment of the emerging protostar. James Webb Space Telescope observations of the
Dan M. Watson +43 more
doaj +2 more sources
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 +3 more
openaire +2 more sources
The Role of Benzonitrile Chlorination Explored by Dissociative Electron Attachment. [PDF]
ChemphyschemExperimental and theoretical dissociative electron attachment study of 2‐ and 4‐chlorobenzonitrile. The dissociative electron attachment process to ortho‐ and para‐chlorobenzonitrile was investigated in the 0–12 eV energy range with a crossed‐beam time‐of‐flight mass spectrometer, supported by quantum chemical scattering calculations.
Guerra P +5 more
europepmc +2 more sources
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 +3 more
openaire +1 more source
CO in Protostars (COPS): Herschel-SPIRE Spectroscopy of Embedded Protostars∗ [PDF]
The Astrophysical Journal, 2018 Abstract We present full spectral scans from 200 to 670 μm of 26 Class 0+I protostellar sources obtained with Herschel-SPIRE as part of the “COPS-SPIRE” Open Time program, complementary to the DIGIT and WISH Key Programs. Based on our nearly continuous, line-free spectra from 200 to 670 μm, the calculated bolometric luminosities (L
Yao-Lun Yang +15 more
openaire +8 more sources