Results 1 to 10 of about 1,668 (251)

Predictions of Dust Continuum Emission from a Potential Circumplanetary Disk: A Case Study of the Planet Candidate AB Aurigae b

The Astrophysical Journal
Gas-accreting planets embedded in protoplanetary disks are expected to show dust thermal emission from their circumplanetary disks (CPDs). However, a recently reported gas-accreting planet candidate, AB Aurigae b, has not been detected in (sub)millimeter
Yuhito Shibaike, Jun Hashimoto, Ruobing Dong, Christoph Mordasini, Misato Fukagawa, Takayuki Muto   +5 more
doaj   +2 more sources

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

The 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), Hsi-Wei Yen, Nagayoshi Ohashi, John J. Tobin, Jes K. Jørgensen, Shigehisa Takakuwa, Kazuya Saigo, Yusuke Aso, Zhe-Yu Daniel Lin, Patrick M. Koch, Yuri Aikawa, Christian Flores, Itziar de Gregorio-Monsalvo, Ilseung Han, Miyu Kido, Woojin Kwon, Shih-Ping Lai, Chang Won Lee, Jeong-Eun Lee, Zhi-Yun Li, Leslie W. Looney, Shoji Mori, Nguyen Thi Phuong, Alejandro Santamaría-Miranda, Rajeeb Sharma, Travis J. Thieme, Kengo Tomida, Jonathan P. Williams   +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]

Royal 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, Padelis P. Papadopoulos, R. J. Ivison, Maud Galametz, M. W. L. Smith, Emmanuel M. Xilouris   +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

The 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, Tom J. L. C. Bakx, Akio K. Inoue, Takuya Hashimoto, Tsuyoshi Tokuoka, Chihiro Imamura, Bunyo Hatsukade, Minju M. Lee, Kana Moriwaki, Takashi Okamoto, Kazuaki Ota, Hideki Umehata, Naoki Yoshida, Erik Zackrisson, Masato Hagimoto, Hiroshi Matsuo, Ikkoh Shimizu, Yuma Sugahara, Tsutomu T. Takeuchi   +18 more
doaj   +1 more source

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

The 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, Noel D. Richardson, Peredur M. Williams, Nicole Karnath, Victor I. Shenavrin, Ryan M. Lau, Anthony F. J. Moffat, Gerd Weigelt   +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]

Serbian 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

The 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, K. Sandstrom, A. Leroy, J.-D. T. Smith   +3 more
doaj   +1 more source

Infrared Ejecta and Cold Dust in the Young Supernova Remnant N132D

The 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, Aravind P. Ravi, Jonathan D. Slavin, Heechan Cha   +3 more
doaj   +1 more source

NIKA2 observations around LBV stars Emission from stars and circumstellar material [PDF]

EPJ Web of Conferences, 2020
Luminous Blue Variable (LBV) stars are evolved massive objects, previous to core-collapse supernova. LBVs are characterized by photometric and spectroscopic variability, produced by strong and dense winds, mass-loss events and very intense UV radiation ...
Ricardo Rizzo J., Ritacco Alessia, Bordiu Cristobal   +2 more
doaj   +1 more source

Millimeter dust continuum and polarization in protoplanetary disks with scattering: A slab model

Astronomy & Astrophysics
Context. Millimeter continuum emission and self-scattering polarization from protoplanetary disks are widely used to constrain dust properties. Interpreting these observations requires practical prescriptions for the disk emission.
Kitade Naoya, Kataoka Akimasa
doaj   +1 more source