Results 61 to 70 of about 4,213,215 (189)

Millimeter observations of Young Stellar Objects with the CARMA interferometer [PDF]

, 2016
Presento uno studio di 81 young stellar Objects di classe con l'obiettivo di ricavarne la massa in polvere dai ...
Zennaro, Marco
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The Structure and Kinematics of Three Class 0 Protostellar Jets from JWST

The Astrophysical Journal
We 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, S. Thomas Megeath, Alessio Caratti o Garatti, Mayank Narang, Himanshu Tyagi, Neal J. Evans II, Carolin N. Kimmig, Łukasz Tychoniec, Henrik Beuther, Amelia Stutz, P. Manoj, Robert Gutermuth, Tyler L. Bourke, Joel Green, Lee Hartmann, Pamela Klaassen, Rolf Kuiper, Leslie W. Looney, Pooneh Nazari, Thomas Stanke, Dan M. Watson, Yao-Lun Yang, Wafa Zakri   +22 more
doaj   +1 more source

Illuminating Youth: Decades of Mid-infrared Variability and Color Evolution of Young Stellar Objects

The Astrophysical Journal Supplement Series
The 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 STEADY-STATE WIND MODEL FOR YOUNG STELLAR CLUSTERS WITH AN EXPONENTIAL STELLAR DENSITY DISTRIBUTION [PDF]

, 2011
A hydrodynamic model for steady-state, spherically symmetric winds driven by young stellar clusters with an exponential stellar density distribution is presented.
GUILLERMO TENORIO TAGLE, SERGIO MARTINEZ GONZALEZ, SERGIY SILICH   +2 more
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Multiple Components of the Outflow in the Protostellar System HH 212: Outer Outflow Shell, Rotating Wind, Shocked Wind, and Jet

The Astrophysical Journal
We 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, Chin-Fei Lee, Hsien Shang, Sylvie Cabrit, Ruben Krasnopolsky, Claudio Codella, Chun-Fan Liu, Linda Podio, Somnath Dutta, A. Murphy, Jennifer Wiseman   +10 more
doaj   +1 more source

Multiple Shells Driven by Disk Winds: ALMA Observations in the HH 30 Outflow

The Astrophysical Journal
We 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, Chin-Fei Lee, M. Fernández-López, Fabien Louvet, O. Guerra-Alvarado, Luis A. Zapata   +5 more
doaj   +1 more source

Molecular Bubble and Outflow in S Mon Revealed by Multiband Data Sets

The Astrophysical Journal
We identify a molecular bubble, and study the star formation and its feedback in the S Mon region, using multiple molecular lines, young stellar objects (YSOs), and infrared data.
Dejian Liu, Ye Xu, YingJie Li, Zehao Lin, Chaojie Hao, WenJin Yang, Jingjing Li, Xinrong Liu, Yiwei Dong, Shuaibo Bian, Deyun Kong   +10 more
doaj   +1 more source

Optical & X-ray Studies of Ultraluminous X-ray Sources [PDF]

, 2009
Ultraluminous X-ray Sources (ULXs) are point like X-ray sources situated external to the nucleus of their host galaxy, with inferred X-ray luminosities in excess of 10^{39} erg s^{−1} .
Gladstone, Jeanette Claire, GLADSTONE, JEANETTE,CLAIRE   +1 more
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The Outflow of The Protostar in B335. I.

The Astronomical Journal
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.
Klaus W. Hodapp, Laurie L. Chu, Thomas Greene, Michael R. Meyer, Doug Johnstone, Marcia J. Rieke, John Stansberry, Martha Boyer, Charles Beichman, Scott Horner, Tom Roellig, George Rieke, Eric T. Young   +12 more
doaj   +1 more source

Theoretical studies of the outer envelopes of young stellar objects [PDF]

, 1992
With the Monte Carlo code developed by Whitney and Hartmann, a series of models was computed of scattering in disks around young stellar objects. The code calculates scattering by dust, including polarization, in arbitrary geometries.
Hartmann, Lee
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