Multiple Gaps in the Disk of the Class I Protostar GY 91 [PDF]
, 2018 We present the highest spatial resolution Atacama Large Millimeter/submillimeter Array (ALMA) observations to date of the Class I protostar GY 91 in the ρ Ophiuchus L1688 molecular cloud complex.
P. Sheehan, J. Eisner
semanticscholar +1 more source
THE HERSCHEL ORION PROTOSTAR SURVEY: SPECTRAL ENERGY DISTRIBUTIONS AND FITS USING A GRID OF PROTOSTELLAR MODELS [PDF]
, 2016 We present key results from the Herschel Orion Protostar Survey: spectral energy distributions (SEDs) and model fits of 330 young stellar objects, predominantly protostars, in the Orion molecular clouds.
E. Furlan +14 more
semanticscholar +1 more source
Detection of Phosphorus-bearing Molecules toward a Solar-type Protostar [PDF]
Astrophysical Journal, 2019 Phosphorus is a key ingredient in terrestrial biochemistry, but is rarely observed in the molecular interstellar medium and therefore little is known about how it is inherited during the star and planet formation sequence.
J. Bergner +5 more
semanticscholar +1 more source
Revealing the dust grain size in the inner envelope of the Class I protostar Per-emb-50 [PDF]
Astronomy & Astrophysics, 2019 Context. A good constraint of when the growth of dust grains from sub-micrometer to millimeter sizes occurs, is crucial for planet formation models. This provides the first step towards the production of pebbles and planetesimals in protoplanetary disks.
C. Agurto-Gangas +9 more
semanticscholar +1 more source
The Co-evolution of Disks and Stars in Embedded Stages: The Case of the Very-low-mass Protostar IRAS 15398–3359 [PDF]
Astrophysical Journal, 2018 We have observed the CCH (N = 3–2, J = 7/2–5/2, F = 4–3 and 3–2) and SO (67–56) emission at a 0.″2 angular resolution toward the low-mass Class 0 protostellar source IRAS 15398–3359 with ALMA.
Y. Okoda +6 more
semanticscholar +1 more source
Luminosity Outburst of a High-mass Young Stellar Object Triggered by the Surrounding Radiation Field
The Astrophysical Journal Letters, 2023 We present observations of the 6.7 GHz methanol and 4.8 GHz formaldehyde masers toward the high-mass young stellar object G24.33+0.14 (hereafter G24). Our observations were conducted from 2019 to 2021 using the Shanghai Tianma 65 m Radio Telescope and ...
Jun-Ting Liu +10 more
doaj +1 more source
First hot corino detected around an isolated intermediate-mass protostar: Cep E-mm [PDF]
Astronomy & Astrophysics, 2018 Context. Intermediate-mass (IM) protostars provide a bridge between the low- and high-mass protostars. Despite their relevance, little is known about their chemical diversity. Aims.
J. Zamudio +6 more
semanticscholar +1 more source
Hourglass Magnetic Field of a Protostellar System
UniverseAn hourglass-shaped magnetic field pattern arises naturally from the gravitational collapse of a star-forming gas cloud. Most studies have focused on the prestellar collapse phase, when the structure has a smooth and monotonic radial profile.
Shantanu Basu +2 more
doaj +1 more source
Organic chemistry in the innermost, infalling envelope of the Class 0 protostar L483 [PDF]
Astronomy & Astrophysics, 2018 Context. Observations of the innermost regions of deeply embedded protostellar cores have revealed complicated physical structures as well as a rich chemistry with the existence of complex organic molecules. The protostellar envelopes, outflow, and large-
S. Jacobsen +5 more
semanticscholar +1 more source
Crescent-shaped Molecular Outflow from the Intermediate-mass Protostar DK Cha Revealed by ALMA
The Astrophysical Journal, 2023 We report on an Atacama Large Millimeter/submillimeter Array study of the Class I or II intermediate-mass protostar DK Cha in the Chamaeleon II region.
Naoto Harada +8 more
doaj +1 more source