Results 1 to 10 of about 71,232 (305)

Early Planet Formation in Embedded Disks (eDisk). V. Possible Annular Substructure in a Circumstellar Disk in the Ced110 IRS4 System

open access: yesThe Astrophysical Journal, 2023
We have observed the Class 0/I protostellar system Ced110 IRS4 at an angular resolution of 0.″05 (∼10 au) as part of the Atacama Large Millimeter/submillimeter Array large program, Early Planet Formation in Embedded Disks.
Jinshi Sai (Insa Choi)   +27 more
doaj   +1 more source

Gone with the heat: a fundamental constraint on the imaging of dust and molecular gas in the early Universe [PDF]

open access: yesRoyal Society Open Science, 2016
Images of dust continuum and carbon monoxide (CO) line emission are powerful tools for deducing structural characteristics of galaxies, such as disc sizes, H2 gas velocity fields and enclosed H2 and dynamical masses. We report on a fundamental constraint
Zhi-Yu Zhang   +5 more
doaj   +1 more source

The 300 pc Resolution Imaging of a z = 8.31 Galaxy: Turbulent Ionized Gas and Potential Stellar Feedback 600 Million Years after the Big Bang

open access: yesThe Astrophysical Journal, 2023
We present the results of 300 pc resolution Atacama Large Millimeter/submillimeter Array imaging of the [O iii ] 88 μm line and dust continuum emission from a z = 8.312 Lyman-break galaxy MACS0416_Y1.
Yoichi Tamura   +18 more
doaj   +1 more source

FORCASTing the Spectroscopic Dust Properties of the WC+O Binary WR 137 with SOFIA

open access: yesThe Astrophysical Journal, 2023
WR 137 (HD 192641) is a binary system consisting of a carbon-rich Wolf–Rayet (W-R) star and an Oe companion star in a 13 yr orbit. Near periastron, the winds of the two stars collide and form carbonaceous dust.
Megan J. Peatt   +7 more
doaj   +1 more source

On the integrated continuum radio spectrum of supernova remnant W44 (G34.7-0.4): New insights from Planck [PDF]

open access: yesSerbian Astronomical Journal, 2015
In this paper, the integrated continuum radio spectrum of supernova remnant (SNR) W44 was analyzed up to 70 GHz, testing the different emission models that can be responsible for its particular shape.
Onić D.
doaj   +1 more source

Star Formation and Molecular Gas Diagnostics with Mid- and Far-infrared Emission

open access: yesThe Astrophysical Journal, 2023
With the start of JWST observations, mid-infrared (MIR) emission features from polycyclic aromatic hydrocarbons (PAHs), H _2 rotational lines, fine structure lines from ions, and dust continuum will be widely available tracers of gas and star formation ...
C. M. Whitcomb   +3 more
doaj   +1 more source

On the nature of the transition disk around LkCa 15 [PDF]

open access: yes, 2012
We present CARMA 1.3 mm continuum observations of the T Tauri star LkCa 15,which resolve the circumstellar dust continuum emission on angular scales between 0.2-3 arcsec, corresponding to 28-420 AU at the distance of the star.
Andrea Isella   +39 more
core   +2 more sources

Infrared Ejecta and Cold Dust in the Young Supernova Remnant N132D

open access: yesThe Astrophysical Journal, 2023
We present Spitzer, Wide-field Infrared Survey Explorer (WISE), and Herschel observations of the young supernova remnant (SNR) N132D in the Large Magellanic Cloud, including 3–40 μ m Spitzer Infrared Spectrograph (IRS) mapping, 12 μ m WISE and 70, 100 ...
Jeonghee Rho   +3 more
doaj   +1 more source

Hot gas and dust in a protostellar cluster near W3(OH [PDF]

open access: yes, 1999
We used the IRAM Interferometer to obtain sub-arcsecond resolution observations of the high-mass star-forming region W3(OH) and its surroundings at a frequency of 220 GHz.
Baudry A.   +10 more
core   +2 more sources

A Multi-Wavelength Analysis of Dust and Gas in the SR 24S Transition Disk [PDF]

open access: yes, 2017
We present new Atacama Large Millimeter/sub-millimeter Array (ALMA) 1.3 mm continuum observations of the SR 24S transition disk with an angular resolution $\lesssim0.18"$ (12 au radius).
Andrews, S.   +11 more
core   +5 more sources

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