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Related papers: ALMA observations of the Red Rectangle, a prelimin…

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We present a new study of archival ALMA observations of the CO(2-1) line emission of the host galaxy of quasar RX J1131 at redshift $z$=0.654, lensed by a foreground galaxy. A simple lens model is shown to well reproduce the optical images…

Astrophysics of Galaxies · Physics 2021-01-05 T. T. Thai , P. Tuan-Anh , P. Darriulat , D. T. Hoai , P. T. Nhung , P. N. Diep , N. B. Ngoc , N. T. Phuong

This is the first paper of a series exploring the multi-frequency properties of a sample of eleven nearby low excitation radio galaxies (LERGs) in the southern sky. We are conducting an extensive study of different galaxy components (stars,…

Transition disks are protoplanetary disks with inner cavities possibly cleared by massive companions, which makes them prime targets to observe at high resolution to map their velocity structure. We present ALMA Band 6 dust and gas…

To investigate the formation process of multiple systems, we have analyzed the ALMA archival data of the 1.3 mm continuum, $^{12}$CO (2-1) and C$^{18}$O (2-1) emission in a proto-multiple system consisting of a Class 0 protostar Per-emb-8…

Solar and Stellar Astrophysics · Physics 2024-06-25 Shang-Jing Lin , Hsi-Wei Yen , Shih-Ping Lai

ALMA observations of CO(1-0) and CO(2-1) emissions of the circumstellar envelope of EP Aqr, an oxygen-rich AGB star, are reported. A thorough analysis of their properties is presented using an original method based on the separation of the…

Solar and Stellar Astrophysics · Physics 2019-01-16 D. T. Hoai , P. T. Nhung , P. Tuan-Anh , P. Darriulat , P. N. Diep , T. Le Bertre , N. T. Phuong , T. T. Thai , J. M. Winters

We have obtained ALMA Band 7 observations of the FU Ori outburst system at 0.6"x0.5" resolution to measure the link between the inner disk instability and the outer disk through sub-mm continuum and molecular line observations. Our…

Solar and Stellar Astrophysics · Physics 2015-10-28 A. S. Hales , S. A. Corder , W. R. D. Dent , S. M. Andrews , J. A. Eisner , L. A. Cieza

We present our recent results on mm-wave CO observations of proto-planetary nebulae. These include high-resolution interferometric maps of various CO lines in three well known bipolar PPNe: M1-92, M2-56 and OH231.8+4.2. The global…

Astrophysics · Physics 2007-05-23 J. Alcolea , V. Bujarrabal , A. Castro-Carrizo , C. Sanchez Contreras , R. Neri , J. Zweigle

Using the Atacama Large Millimetre/submillimeter Array (ALMA) and the Karl G. Jansky Very Large Array (VLA), we observed the Extended Green Object (EGO) G19.01$-$0.03 with sub-arcsecond resolution from 1.05 mm to 5.01 cm wavelengths. Our…

The Boomerang Nebula is the coldest known object in the Universe, and an extreme member of the class of Pre-Planetary Nebulae, objects which represent a short-lived transitional phase between the AGB and Planetary Nebula evolutionary…

Solar and Stellar Astrophysics · Physics 2015-06-16 R. Sahai , W. H. T. Vlemmings , P. J. Huggins , L-A. Nyman , I. Gonidakis

The plethora of asymmetric planetary nebulae and the curiously high momenta of pre-planetary nebula outflows suggest that rotational energy is extracted from the engines. Magneto-rotational outflows driven by dynamos might be operating…

Astrophysics · Physics 2007-05-23 Eric G. Blackman

We present interferometric observations with the Atacama Large Millimeter Array (ALMA) of the free-free continuum and recombination line emission at 1 and 3mm of the "Red Square Nebula" surrounding the B[e]-type star MWC922. The unknown…

Solar and Stellar Astrophysics · Physics 2019-09-18 C. Sánchez Contreras , A. Báez-Rubio , J. Alcolea , A. Castro-Carrizo , V. Bujarrabal , J. Martín-Pintado , D. Tafoya

Context. There is a class of binary post-asymptotic giant branch (post-AGB) stars that exhibit remarkable near-infrared (NIR) excess. Such stars are surrounded by Keplerian or quasi-Keplerian disks, as well as extended outflows composed of…

Solar and Stellar Astrophysics · Physics 2022-04-20 I. Gallardo Cava , V. Bujarrabal , J. Alcolea , M. Gómez-Garrido , M. Santander-García

For a binary protostellar outflow system in which its members are located so close to each other (the separation being smaller than the addition of the widths of the flows) and with large opening angles, the collision seems unavoidable…

HD 163296 is one of the few protoplanetary discs displaying rings in the dust component. The present work uses ALMA observations of the 0.9 mm continuum emission having significantly better spatial resolution (~8 au) than previously…

Solar and Stellar Astrophysics · Physics 2019-06-03 P. N. Diep , D. T. Hoai , N. B. Ngoc , P. T. Nhung , N. T. Phuong , T. T. Thai , P. Tuan-Anh

We present Atacama Large Millimeter/sub-millimeter Array (ALMA) observations of the star-forming environment surrounding V1647 Ori, an outbursting FUor/EXor pre-MS star. Dust continuum and the (J = 2 - 1) $^{12}$CO, $^{13}$CO, C$^{18}$O…

We present 12CO(J=1-0) mapping observations over ~1/2 of the optical disk of 12 nearby galaxies from the Fundamental CO 1-0 Transition Survey of nearby galaxies (FACTS), using the ALMA Total Power array. Variations in the…

Astrophysics of Galaxies · Physics 2025-05-15 Shinya Komugi , Tsuyoshi Sawada , Jin Koda , Fumi Egusa , Fumiya Maeda , Akihiko Hirota , Amanda M. Lee

We present Atacama Large Millimeter/sub-millimeter Array (ALMA) Cycle-2 observations of the HBC 494 molecular outflow and envelope. HBC 494 is an FU Ori-like object embedded in the Orion A cloud and is associated with the reflection nebulae…

We have newly observed the Class 0/I protostar L1527 IRS using the Atacama Large Millimeter/submillimeter Array (ALMA) during its Cycle 1 in 220 GHz dust continuum and C18O (J=2-1) line emissions with a ~2 times higher angular resolution…

We present the first high-resolution ($\sim$ 0.14") Atacama Large Millimeter/submillimeter Array (ALMA) Band 6 dust continuum and CO molecular line emission observations of the quadruple system HD 34700. In particular, HD 34700AaAb is a…

Earth and Planetary Astrophysics · Physics 2026-03-18 J. Stadler , M. Benisty , F. Zagaria , A. F. Izquierdo , J. Speedie , A. J. Winter , L. Wölfer , J. Bae , S. Facchini , D. Fasano , N. Kurtovic , R. Teague

We present a spatio-kinematical analysis of the CO~($J$=2$\rightarrow$1) line emission, observed with the Atacama Large Millimter/submillimter Array (ALMA), of the outflow associated with the most massive core, ALMA1, in the 70 $\mu$m dark…

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