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Related papers: ALMA's high-cadence imaging capabilities for solar…

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A diverse array of science goals require accurate flux calibration of observations with the Atacama Large Millimeter/Submillimeter array (ALMA), however, this goal remains challenging due to the stochastic time-variability of the ``grid''…

Instrumentation and Methods for Astrophysics · Physics 2020-11-25 Logan Francis , Doug Johnstone , Gregory Herczeg , Todd R. Hunter , Daniel Harsono

We present thermal observations of Callisto's leading and trailing hemispheres obtained using the Atacama Large Millimeter/submillimeter Array (ALMA) at 0.87 mm (343 GHz), 1.3 mm (233 GHz), and 3 mm (97 GHz). The angular resolution achieved…

Earth and Planetary Astrophysics · Physics 2025-07-18 Maria Camarca , Katherine de Kleer , Bryan Butler , Alexander Thelen , Cole Meyer , Alex Akins , Imke de Pater , Mark Gurwell

Formation processes of high-mass stars have been long-standing issues in astronomy and astrophysics. This is mainly because of major difficulties in observational studies such as a smaller number of high-mass young stellar objects (YSOs),…

Astrophysics of Galaxies · Physics 2018-12-21 Tomoya Hirota

With the ability to see into optically obscured regions with more than an order of magnitude better sensitivity and spatial resolution relative to current (sub)mm telescopes, ALMA will provide a unique look into the physics of galaxy…

Astrophysics · Physics 2007-05-23 C. L. Carilli

The Atacama Large Millimeter/Submillimeter Array (ALMA) in the sub-millimeter and the James Webb Space Telescope (JWST) in the infrared have achieved robust spectroscopic detections of emission lines from the interstellar medium (ISM) in…

Astrophysics of Galaxies · Physics 2023-08-08 Shengqi Yang , Adam Lidz , Aaron Smith , Andrew Benson , Hui Li

The Atacama Large Millimeter/submillimeter Array (ALMA) was used to obtain measurements of spatially and spectrally resolved CH$_3$OH emission from comet C/2012 K1 (PanSTARRS) on 28-29 June 2014. Detection of 12-14 emission lines of…

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

We present Atacama Large Millimeter/submillimiter Array (ALMA) high sensitivity ($\sigma_P \simeq 0.4\,$mJy) polarimetric observations at $97.5\,$GHz (Band 3) of a complete sample of $32$ extragalactic radio sources drawn from the faint…

We present initial results of very high resolution Atacama Large Millimeter/submillimeter Array (ALMA) observations of the $z$=3.042 gravitationally lensed galaxy HATLAS J090311.6+003906 (SDP.81). These observations were carried out using a…

We first present spatially resolved ALMA and VLA continuum observations of the early-M red supergiant Antares to search for the presence of a chromosphere at radio wavelengths. We resolve the free-free emission of the Antares atmosphere at…

If the dark matter halos of galaxies contain large numbers of subhalos as predicted by the $\Lambda$CDM model, these subhalos are expected to appear in strong galaxy--galaxy lens systems as small--scale perturbations in individual images.…

Astrophysics of Galaxies · Physics 2017-09-13 Saghar Asadi , Erik Zackrisson , Emily Freeland

ALMA will revolutionize the study of star formation by providing a combination of angular resolution and sensitivity that far exceeds that of present instruments. I will focus on studies of relatively isolated cores that are forming…

Astrophysics · Physics 2007-05-23 Neal J. Evans

Images of the Sun at millimeter wavelengths obtained by ALMA show a significant correspondence with the magnetograms. In this paper, we investigate this correspondence by comparing ALMA full-disk solar image taken at 1.2 mm with a SDO/HMI…

Solar and Stellar Astrophysics · Physics 2022-03-23 I. Skokić , D. Sudar , R. Brajša

New instruments sensitive to chromospheric radiation at X-ray, UV, Visible, IR, and sub-mm wavelengths have become available that significantly enhance our ability to understand the bi-directional flow of energy through the chromosphere. We…

Solar and Stellar Astrophysics · Physics 2022-07-27 Adam R. Kobelski , Lucas A. Tarr , Sarah A. Jaeggli , Nicholas Luber , Harry P. Warren , Sabrina L. Savage

The densities of mid-sized Kuiper belt objects are a key constraint into understanding the assembly of objects in the outer solar system. These objects are critical for understanding the currently unexplained transition from the smallest…

Earth and Planetary Astrophysics · Physics 2017-06-28 Michael E. Brown , Bryan J. Butler

We present observational constraints on the solar chromospheric heating contribution from acoustic waves with frequencies between 5 and 50 mHz. We utilize observations from the Dunn Solar Telescope in New Mexico complemented with…

Solar and Stellar Astrophysics · Physics 2021-11-03 Momchil E. Molnar , Kevin P. Reardon , Steven R. Cranmer , Adam F. Kowalski , Yi Chai , Dale Gary

Submillimeter and millimeter wavelengths provide a unique view of the Universe, from the gas and dust that fills and surrounds galaxies to the chromosphere of our own Sun. Current single-dish facilities have presented a tantalising view of…

Instrumentation and Methods for Astrophysics · Physics 2024-08-22 Mark Booth , Pamela Klaassen , Claudia Cicone , Tony Mroczkowski , Martin A. Cordiner , Luca Di Mascolo , Doug Johnstone , Eelco van Kampen , Minju M. Lee , Daizhong Liu , John Orlowski-Scherer , Amélie Saintonge , Matthew W. L. Smith , Alexander Thelen , Sven Wedemeyer , Kazunori Akiyama , Stefano Andreon , Doris Arzoumanian , Tom J. L. C. Bakx , Caroline Bot , Geoffrey Bower , Roman Brajša , Chian-Chou Chen , Elisabete da Cunha , David Eden , Stefano Ettori , Brandt Gaches , Evanthia Hatziminaoglou , Patricia Luppe , Benjamin Magnelli , Jonathan P. Marshall , Francisco Miguel Montenegro-Montes , Michael Niemack , Conor Nixon , Imke de Pater , Yvette Perrott , Sandra I. Raimundo , Elena Redaelli , Anita Richards , Matus Rybak , Nikolina Šarčević , Dmitry Semenov , Silvia Spezzano , Sundar Srinivasan , Thomas Stanke , Paola Andreani , Maria T. Beltrán , Bryan J. Butler , Sebastiano Cantalupo , Miguel Chavez Dagostino , Ana Duarte-Cabral , Bjorn Emonts , Leigh Fletcher , Dale E. Gary , Stanislav Gunar , Alvaro Hacar , Bendix Hagedorn , Tomek Kaminski , Fiona Kirton , Katherine de Kleer , Eduard Kontar , Yi-Jehng Kuan , John Lightfoot , Enrique Lopez-Rodriguez , Andreas Lundgren , Stefanie N. Milam , Atul Mohan , Raphael Moreno , Galina G. Motorina , Arielle Moullet , Kate Pattle , Alberto Pellizzoni , Nicolas Peretto , Joanna Ramasawmy , Claudio Ricci , Andrew J. Rigby , Álvaro Sánchez-Monge , Maryam Saberi , Masumi Shimojo , Aurora Simionescu , Mark Thompson , Alessio Traficante , Cristian Vignali , Stephen M. White

The radio astronomical data analysis package CASA was selected to be the designated tool for observers to analyse the data from the Atacama Large mm/sub-mm Array (ALMA) which is under construction and has recently started taking its first…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Dirk Petry

We present preliminary results of an extensive research project aimed at describing the physical and chemical conditions of hot molecular cores (HMCs). Using millimeter continuum and spectroscopic data extracted from the Atacama Large…

Astrophysics of Galaxies · Physics 2026-03-06 N. C. Martinez , S. Paron , M. E. Ortega , L. Supán , A. Petriella

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…