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Related papers: Conducting High Frequency Radio SETI using ALMA

200 papers

The Atacama Large mm and sub-mm Array (ALMA) radio observatory is one of the world's largest astronomical projects. After the very successful conclusion of the first observation cycles Early Science Cycles 0 and 1, the ALMA project can…

Instrumentation and Methods for Astrophysics · Physics 2020-12-17 Dirk Petry , Baltasar Vila-Vilaro , Eric Villard , Shinya Komugi , Scott Schnee

Wide, deep, blind continuum surveys at submillimetre/millimetre (submm/mm) wavelengths are required to provide a full inventory of the dusty, distant Universe. However, conducting such surveys to the necessary depth, with sub-arcsec angular…

We estimate the amount of negative feedback energy injected into the ISM of the host galaxy of 3C273, a prototypical radio loud quasar. We obtained 93, 233 and 343 GHz continuum images with the Atacama Large Millimeter/Sub-millimeter Array…

Astrophysics of Galaxies · Physics 2022-05-11 Shinya Komugi , Yoshiki Toba , Yoshiki Matsuoka , Toshiki Saito , Takuji Yamashita

The Atacama Large millimeter/submillimeter Array (ALMA) obtains spatial resolutions of 15 to 5 milli-arcsecond (mas) at 275-950GHz (0.87-0.32mm) with 16km baselines. Calibration at higher-frequencies is challenging as ALMA sensitivity and…

The Five-hundred-meter Aperture Spherical Telescope (FAST) is the world's largest single-dish radio telescope, and the search for extraterrestrial intelligence (SETI) is one of its five key science objectives. We conducted a targeted…

Instrumentation and Methods for Astrophysics · Physics 2025-09-09 Guang-Yuan Song , Zhen-Zhao Tao , Bo-Lun Huang , Yan Cui , Bo Yu , Tong-Jie Zhang

Radio-emitting jets might be one of the main ingredients shaping the evolution of massive galaxies in the Universe since early cosmic times. However, identifying early radio active galactic nuclei (AGN) and confirming this scenario has been…

We measure the sizes of redshift ~2 star-forming galaxies by stacking data from the Atacama Large Millimeter/submillimeter Array (ALMA). We use a uv-stacking algorithm in combination with model fitting in the uv-domain and show that this…

Astrophysics of Galaxies · Physics 2016-09-07 L. Lindroos , K. K. Knudsen , L. Fan , J. Conway , K. Coppin , R. Decarli , G. Drouart , J. A. Hodge , A. Karim , J. M. Simpson , J. Wardlow

The thermal radio and sub-mm emission from the winds of massive stars is investigated and the contribution to the emission due to the stellar wind acceleration region and clumping of the wind is quantified. Building upon established theory,…

Solar and Stellar Astrophysics · Physics 2016-09-07 S. Daley-Yates , I. R. Stevens , T. D. Crossland

The Atacama Large Millimetre/submillimetre Array (ALMA) is currently in the process of transforming our view of star-forming galaxies in the distant ($z\gtrsim1$) universe. Before ALMA, most of what we knew about dust-obscured star…

Astrophysics of Galaxies · Physics 2021-01-18 Jacqueline A. Hodge , Elisabete da Cunha

The ALMA SPECtroscopic Survey in the {\it Hubble} Ultra Deep Field is an ALMA large program that obtained a frequency scan in the 3\,mm band to detect emission lines from the molecular gas in distant galaxies. We here present our search…

The Submillimeter Array (SMA), a collaboration between the Smithsonian Astrophysical Observatory and the Academica Sinica Institute for Astronomy and Astrophysics of Taiwan, is an eight-element radio-interferometer designed to operate…

We have performed targeted searches of known extragalactic transient events at millimetre wavelengths using nine seasons (2013--2021) of 98, 150, and 229\,GHz Atacama Cosmology Telescope (ACT) observations that mapped ${\sim}40$ per cent of…

Among the numerous known extrasolar planets, only a handful have been imaged directly so far, at large orbital radii and in rather evolved systems. The Atacama Large Millimeter/submillimeter Array (ALMA) will have the capacity to observe…

Solar and Stellar Astrophysics · Physics 2015-06-16 Jean-François Gonzalez , Christophe Pinte , Sarah T. Maddison , François Ménard

We have exploited ALMA calibration observations to carry out a novel, wide and deep submm survey, ALMACAL. These calibration data comprise a large number of observations of calibrator fields in a variety of frequency bands and array…

Astrophysics of Galaxies · Physics 2016-05-25 I. Oteo , M. A. Zwaan , R. J. Ivison , I. Smail , A. D. Biggs

We report optical-infrared (IR) properties of faint 1.3 mm sources (S_1.3mm = 0.2-1.0 mJy) detected with the Atacama Large Millimeter/submillimeter Array (ALMA) in the Subaru/XMM-Newton Deep Survey (SXDS) field. We searched for optical/IR…

Astrophysics of Galaxies · Physics 2015-09-16 Bunyo Hatsukade , Kouji Ohta , Kiyoto Yabe , Akifumi Seko , Ryu Makiya , Masayuki Akiyama

The Breakthrough Listen program is, to date, the most extensive search for technological life beyond Earth. As part of this goal, over the past nine years it has surveyed thousands of nearby stars, close to 100 nearby galaxies, and a…

Instrumentation and Methods for Astrophysics · Physics 2025-08-07 Caleb Painter , Steve Croft , Matthew Lebofsky , Alex Andersson , Carmen Choza , Vishal Gajjar , Danny Price , Andrew P. V. Siemion

The Atacama Cosmology Telescope was designed to measure small-scale anisotropies in the Cosmic Microwave Background and detect galaxy clusters through the Sunyaev-Zel'dovich effect. The instrument is located on Cerro Toco in the Atacama…

Most sub-mm emission line studies of galaxies to date have targeted sources with known redshifts where the frequencies of the lines are well constrained. Recent blind line scans circumvent the spectroscopic redshift requirement, which could…

After eight observing Cycles, the Atacama Large Millimeter-submillimeter Array (ALMA) is capable of observing in eight different bands (covering a frequency range from 84 to 950 GHz), with 66 antennas and two correlators. For the current…

Instrumentation and Methods for Astrophysics · Physics 2021-01-12 Jorge F. García Yus , Bill Dent , Drew Brisbin , Chin-Shin Chang , Laura Gómez , Theodoros Nakos