English
Related papers

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

200 papers

The morphology, kinematics and entrainment mechanism of the HH 46/47 molecular outflow were studied using new ALMA Cycle 0 observations. Results show that the blue and red lobes are strikingly different. We argue that these differences are…

Solar and Stellar Astrophysics · Physics 2015-06-15 Hector G. Arce , Diego Mardones , Stuartt A. Corder , Guido Garay , Alberto Noriega-Crespo , Alejandro C. Raga

A spectral scan of the circumstellar environment of the asymptotic giant branch (AGB) star R~Doradus was taken with ALMA in cycle 2 at frequencies between 335 and 362 GHz and with a spatial resolution of $\sim$150 milliarcseconds. Many…

Solar and Stellar Astrophysics · Physics 2018-06-27 Ward Homan , Taissa Danilovich , Leen Decin , Alex de Koter , Joseph Nuth , Marie Van de Sande

The chemical composition of planets is inherited by the distribution of the various molecular species in the protoplanetary disk at thetime of their formation. As of today, only a handful of disks has been imaged in multiple spectral lines…

There is a group of binary post-AGB stars that show a conspicuous NIR excess, usually assumed to arise from hot dust in very compact possibly rotating disks. These stars are surrounded by significantly fainter nebulae than the "standard",…

Astrophysics of Galaxies · Physics 2015-06-16 V. Bujarrabal , J. Alcolea , H. Van Winckel , M. Santander-Garcia , A. Castro-Carrizo

We report the discovery of a very dense jet-like fast molecular outflow surrounded by a wide-angle wind in a massive young stellar object (MYSO) G18.88MME (stellar mass $\sim$8 M$_{\odot}$) powering an Extended Green Object G18.89$-$0.47.…

Astrophysics of Galaxies · Physics 2021-07-07 I. I. Zinchenko , L. K. Dewangan , T. Baug , D. K. Ojha , N. K. Bhadari

Atacama Large Millimetre/sub-millimetre Array (ALMA) observations of the CO(1-0) and CO(2-1) emissions from the circumstellar envelope of the Asymptotic Giant Branch (AGB) star EP Aqr have been made with four times better spatial resolution…

Solar and Stellar Astrophysics · Physics 2019-05-01 P. T. Nhung , D. T. Hoai , P. Tuan-Anh , T. Le Bertre , P. Darriulat , P. N. Diep , N. T. Phuong , N. T. Thao , J. M. Winters

We present first results from a program of Atacama Large Millimeter/submillimeter Array (ALMA) CO(2-1) observations of circumnuclear gas disks in early-type galaxies. The program was designed with the goal of detecting gas within the…

Astrophysics of Galaxies · Physics 2016-06-01 A. J. Barth , J. Darling , A. J. Baker , B. D. Boizelle , D. A. Buote , L. C. Ho , J. L. Walsh

We present an overview of the ALMA chemical survey of disk-outflow sources in Taurus (ALMA-DOT), a campaign devoted to the characterization of the molecular emission from partly embedded, young stars. The project aims at better…

We present $^{29}$SiO(J=8--7) $\nu$=0, SiS (J=19--18) $\nu$=0, and $^{28}$SiO (J=8--7) $\nu$=1 molecular line archive observations made with the Atacama Large Millimeter/Submillimeter Array (ALMA) of the molecular outflow associated with…

Solar and Stellar Astrophysics · Physics 2020-12-09 J. A. López-Vázquez , Luis A. Zapata , Susana Lizano , Jorge Cantó

Large-scale outflows are believed to be an important mechanism in the evolution of galaxies. We can determine the impact of these outflows by studying either current galaxy outflows and their effect in the galaxy or by studying the effect…

Astrophysics of Galaxies · Physics 2023-01-11 J. Scholtz , R. Maiolino , G. C. Jones , S. Carniani

Active galactic nuclei (AGNs) influence their host galaxies through winds and jets that can drive molecular outflows, traceable with CO line emissions using the Atacama Large Millimeter Array (ALMA). Recent studies leveraging ALMA data have…

Astrophysics of Galaxies · Physics 2025-05-28 Yuze Zhang , Serena Viti , Santiago García-Burillo , Ko-Yun Huang

We present Atacama Large Millimeter/submillimeter Array (ALMA) observations at 0.3 arcsec-resolution of EX Lup, the prototype of the EXor class of outbursting pre-main sequence stars. The circumstellar disk of EX Lup is resolved for the…

Solar and Stellar Astrophysics · Physics 2018-06-13 A. S. Hales , S. Peréz , M. Saito , C. Pinte , L. Knee , I. de Gregorio-Monsalvo , C. López , A. Plunkett , P. Córtes , S. Corder , L. Cieza

We present the molecular gas morphology and kinematics of seven nearby Seyfert galaxies obtained from our 230~GHz ALMA observations. The CO J=2-1 kinematics within the inner $\sim30$" ($\lesssim9$~kpc) reveals rotation patterns that have…

Recent observations by the Atacama Large Millimeter/submillimeter Array (ALMA) of disks around young stars revealed distinct asymmetries in the dust continuum emission. In this work we want to study axisymmetric and non-axisymmetric…

Earth and Planetary Astrophysics · Physics 2015-01-28 M. Flock , J. P. Ruge , N. Dzyurkevich , Th. Henning , H. Klahr , S. Wolf

We present ALMA [\ion{C}{1}]~$^3P_1$--$^3P_0$ imaging of the central $6.6\times4.2~\mathrm{pc}^2$ region of the Galaxy encompassing the circumnuclear disk (CND). The data reveal low-density ($n_\mathrm{H_2}\sim10^3~$cm$^{-3}$) molecular gas…

Astrophysics of Galaxies · Physics 2026-02-11 Kunihiko Tanaka , Makoto Nagai , Kazuhisa Kamegai

We present an extensive study of the structure and kinematics of the jet and outflow of EC 53, a Class I protostar with a quasi-periodic variability, using combined James Webb Space Telescope (JWST) and Atacama Large…

The proto-planetary Red Rectangle nebula is powered by HD 44179, a spectroscopic binary (P = 318 d), in which a luminous post-AGB component is the primary source of both luminosity and current mass loss. Here, we present the results of a…

We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of molecular line emission from d216-0939, one of the largest and most massive protoplanetary disks in the Orion Nebula Cluster (ONC). We model the spectrally…