Results 41 to 50 of about 1,150 (163)
EPISODE. III. The Nested Jet/Outflow Morphology of EC 53 Revealed by JWST and ALMA
The Astrophysical JournalWe present an extensive study of the structure and kinematics of the jet and outflow of EC 53, a Class I protostar with a quasiperiodic variability, using combined James Webb Space Telescope (JWST) and Atacama Large Millimeter/submillimeter Array (ALMA ...
Seonjae Lee +10 more
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Molecular Outflows from Young Stellar Objects
, 1999 30 pages, 6 figures. To appear in Protostars & Planets IV, eds. V. Mannings, A. Boss, S. Russell (Tucson: The University of Arizona Press)
Richer, John +4 more
openaire +2 more sources
Illuminating Youth: Decades of Mid-infrared Variability and Color Evolution of Young Stellar Objects
The Astrophysical Journal Supplement SeriesThe variability of young stellar objects (YSOs) is a crucial tool for understanding the mechanisms driving flux changes. In this study, we present an infrared variability analysis of a large sample of over 20,000 candidate YSOs, using data from the ...
Sharma Neha, Saurabh Sharma
doaj +1 more source
The Astronomical JournalWe present images of IRAS 08235–4316 with the Dark Energy Camera Plane Survey (DECaPS; spanning 0.398–1.034 μ m, at ∼1″ resolution) and the Submillimeter Array (SMA; at 1.38 mm (217 GHz) and ∼1 $\mathop{.}\limits^{^{\prime\prime} }$ 9 × 1 $\mathop ...
Joshua Bennett Lovell +6 more
doaj +1 more source
The Structure and Kinematics of Three Class 0 Protostellar Jets from JWST
The Astrophysical JournalWe present observations of jets within 2000 au of three deeply embedded protostars using 2.9–27 μ m observations with JWST. These observations show the morphologies and kinematics of the collimated jets from three protostars, the low-mass Class 0 ...
Samuel A. Federman +22 more
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The Astrophysical JournalWe present the Atacama Large Millimeter/submillimeter Array Band 7 observations of the CO ( J = 3−2) line emission of the protostellar system HH 212 at ∼24 au spatial resolution and compare them to those of the SiO ( J = 8−7) and SO ( J = 8−7) line ...
J. A. López-Vázquez +10 more
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CO Outflows from Young Stellar Objects
The Astrophysical Journal, 2002 We have mapped the CO J = 1-0 emission from molecular outflows associated with six young stellar systems using the BIMA array. The systems are all relatively nearby, have low-luminosity, and range from Class 0 to Class II sources. The CO outflows in these systems are complicated, showing multipolar structures, multiple cavities, and asymmetric lobes ...
Chin‐Fei Lee +3 more
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Multiple Shells Driven by Disk Winds: ALMA Observations in the HH 30 Outflow
The Astrophysical JournalWe present archival Atacama Large Millimeter/submillimeter Array band 6 observations of the ^13 CO ( J = 2–1) and ^12 CO ( J = 2–1) molecular line emission of the protostellar system associated with HH 30.
J. A. López-Vázquez +5 more
doaj +1 more source
LAMOST Reveals Long-lived Protoplanetary Disks
The Astronomical JournalWhile both observations and theories demonstrate that protoplanetary disks are not expected to live much longer than ∼10 Myr, several examples of prolonged disks have been observed in the past.
Xiao-Long Wang +4 more
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IRAS22150+6190: A POORLY STUDIED YOUNG STAR
Odessa Astronomical Publications, 2016 Many young stellar objects have been discovered in the course of the InfraRed Astronomical Satellite (IRAS) mission, which observed almost the entire sky in four photometric bands between 12 and 100 microns in 1989.
K. S. Kuratov +3 more
doaj +1 more source