K. L. J. Rygl YOU? Author Swipe

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ALMAGAL VIII. Cataloging Hierarchical Mass Structure from Cores to Clumps across the Galactic Disk Open

J. Wallace, Taevis Kolz, Cara Battersby, Aleksandra Kuznetsova, Á. Sánchez-Monge , et al. · 2025

Investigating the multi-scale fragmentation of dense clumps into compact cores is essential for understanding the processes that govern the initial distribution of mass in stellar clusters and how high-mass stars ($>8~M_{\odot}$) form. We …

Global wind map on Mars during and after the global dust storm in 2018 measured by ALMA Open

Nozomi Kakinuma, Shohei Aoki, Hideo Sagawa, Eric Villard, K. L. J. Rygl , et al. · 2025

The wind velocity field plays a fundamental role in understanding atmospheric physics. Gaining insight into the three-dimensional structure of atmospheric circulation leads to a deeper comprehension of the mechanisms governing the transpor…

ALMAGAL Open

C. Mininni, S. Molinari, J. D. Soler, Á. Sánchez-Monge, Alessandro Coletta , et al. · 2025

Context . The study of molecular line emission is crucial to unveil the kinematics and the physical conditions of gas in star-forming regions. We use data from the ALMAGAL survey, which provides an unprecedentedly large statistical sample …

ALMAGAL Open

S. Molinari, P. Schilke, C. Battersby, Paul T. P. Ho, A. S'anchez-Monge , et al. · 2025

Context . A large fraction of stars form in clusters containing high-mass stars, which subsequently influences the local and galaxy-wide environment. Aims . Fundamental questions about the physics responsible for fragmenting molecular pars…

ALMAGAL Open

A. Coletta, S. Molinari, E. Schisano, A. Traficante, D. Elia , et al. · 2025

The physical mechanisms behind the fragmentation of high-mass dense clumps into compact star-forming cores and the properties of these cores are fundamental topics that are heavily investigated in current astrophysical research. The ALMAGA…

ALMAGAL Open

A. S'anchez-Monge, C. L. Brogan, T. R. Hunter, A. Ahmadi, A. Avison , et al. · 2025

Context. Stars form preferentially in clusters embedded inside massive molecular clouds, many of which contain high-mass stars. Thus, a comprehensive understanding of star formation requires a robust and statistically well-constrained char…

Physical conditions around high-mass young star-forming objects via simultaneous observations of excited OH and methanol masers Open

A. Kobak, A. Bartkiewicz, K. L. J. Rygl, A. M. S. Richards, M. Szymczak , et al. · 2025

Context . Astrophysical masers are widely used in star formation studies. In particular, they are valuable in investigations of high-mass star-forming regions that are difficult to observe at optical frequencies. Aims . We used multi-trans…

Dynamical accretion flows Open

M. R. A. Wells, H. Beuther, S. Molinari, P. Schilke, Cara Battersby , et al. · 2024

Context. Investigating the flow of material along filamentary structures towards the central core can help provide insights into high-mass star formation and evolution. Aims. Our main motivation is to answer the question of what the proper…

A Search for Pulsars around Sgr A* in the First Event Horizon Telescope Data Set Open

Pablo Torné, Kuo Liu, Ralph P. Eatough, J. Wongphechauxsorn, J. M. Cordes , et al. · 2023

In 2017 the Event Horizon Telescope (EHT) observed the supermassive black hole at the center of the Milky Way, Sagittarius A* (Sgr A*), at a frequency of 228.1 GHz ( λ = 1.3 mm). The fundamental physics tests that even a single pulsar orbi…

A search for pulsars around Sgr A* in the first Event Horizon Telescope dataset Open

Pablo Torné, Kuo Liu, Ralph P. Eatough, J. Wongphechauxsorn, J. M. Cordes , et al. · 2023

The Event Horizon Telescope (EHT) observed in 2017 the supermassive black hole at the center of the Milky Way, Sagittarius A* (Sgr A*), at a frequency of 228.1 GHz ($λ$=1.3 mm). The fundamental physics tests that even a single pulsar orbit…

The Forgotten Quadrant Survey: a 12CO and 13CO (1–0) survey of the Galactic Plane in the range 220° Open

M. Benedettini, S. Molinari, A. Baldeschi, M. T. Beltrán, J. Brand , et al. · 2023

I will present the Forgotten Quadrant Survey (FQS), a project that used 700 hr of the 12m antenna at the Arizona Radio Observatory to map a strip of the Milky Way plane in the range 220°

The SQUALO project (Star formation in QUiescent And Luminous Objects) I: clump-fed accretion mechanism in high-mass star-forming objects Open

A. Traficante, B. Jones, A. Avison, G. A. Fuller, M. Benedettini , et al. · 2023

The formation mechanism of the most massive stars is far from completely understood. It is still unclear if the formation is core-fed or clump-fed, i.e. if the process is an extension of what happens in low-mass stars, or if the process is…

The SQUALO project (Star formation in QUiescent And Luminous Objects) I: clump-fed accretion mechanism in high-mass star-forming objects Open

A. Traficante, B. M. Jones, A. Avison, G. A. Fuller, M. Benedettini , et al. · 2023

Galactic Astrometry with VLBI Open

K. L. J. Rygl · 2022

Astrometric very long baseline interferometry (VLBI) observations of stellar masers are an excellent method to determine distances and proper motions in our Galaxy. Large maser astrometry surveys, the Bar and Spiral Structure Legacy survey…

CASA on the Fringe—Development of VLBI Processing Capabilities for CASA Open

Ilse van Bemmel, Mark Kettenis, Des Small, Michaël Janssen, G. Moellenbrock , et al. · 2022

New functionality to process Very Long Baseline Interferometry (VLBI) data has been implemented in the CASA package. This includes two new tasks to handle fringe fitting and VLBI-specific amplitude calibration steps. Existing tasks have be…

Accurate Distances of Massive Young Stars in the Scutum Spiral Arm Open

J. J. Li, K. Immer, M. J. Reid, A. Sanna, K. L. J. Rygl , et al. · 2022

As part of the BeSSeL Survey, we have used the Very Long Baseline Array to measure 16 trigonometric parallaxes and proper motions of molecular masers associated with 14 high-mass star-forming regions in the Scutum arm in the first quadrant…

An Updated View of the Milky Way from Maser Astrometry Open

K. Immer, K. L. J. Rygl · 2022

Astrometric observations of maser sources in the Milky Way, using the Very Long Baseline Interferometry (VLBI) technique, have been exploited to determine the spiral structure of our Galaxy. Several major spiral arms have now been pinpoint…

The science case and challenges of space-borne sub-millimeter interferometry Open

Leonid Gurvits, Z. Paragi, Ricardo Amils, Ilse van Bemmel, Paul Boven , et al. · 2022

The science case and challenges of space-borne sub-millimeter interferometry Open

Leonid Gurvits, Z. Paragi, Ricardo Amils, Ilse van Bemmel, Paul Boven , et al. · 2022

Ultra-high angular resolution in astronomy has always been an important vehicle for making fundamental discoveries. Recent results in direct imaging of the vicinity of the supermassive black hole in the nucleus of the radio galaxy M87 by t…

The Additional Representative Images for Legacy (ARI-L) Project for the ALMA Science Archive Open

M. Massardi, F. Stoehr, G. J. Bendo, M. Bonato, J. Brand , et al. · 2021

The Additional Representative Images for Legacy (ARI-L) project is a European Development project for ALMA Upgrade approved by the Joint ALMA Observatory (JAO) and the European Southern Observatory (ESO), started in June 2019. It aims to i…

THEZA: TeraHertz Exploration and Zooming-in for Astrophysics Open

Leonid Gurvits, Z. Paragi, V. Casasola, J. E. Conway, Jordy Davelaar , et al. · 2021

The Hi-GAL compact source catalogue – II. The 360° catalogue of clump physical properties Open

D. Elia, Manuel Merello, S. Molinari, E. Schisano, A. Zavagno , et al. · 2021

We present the 360° catalogue of physical properties of Hi-GAL compact sources, detected between 70 and 500 $\mu$m. This release not only completes the analogous catalogue previously produced by the Hi-GAL collaboration for −71° ≲ ℓ ≲ 67°,…

ALMA chemical survey of disk-outflow sources in Taurus (ALMA-DOT) Open

A. Garufi, L. Podio, C. Codella, D. Fedele, E. Bianchi , et al. · 2020

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 is aimed at attaining a bet…

ALMA chemical survey of disk-outflow sources in Taurus (ALMA-DOT) V: Sample, overview, and demography of disk molecular emission Open

A. Garufi, L. Podio, C. Codella, D. Fedele, E. Bianchi , et al. · 2020

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 understandi…

ALMA chemical survey of disk-outflow sources in Taurus (ALMA-DOT) Open

L. Podio, A. Garufi, C. Codella, D. Fedele, K. L. J. Rygl , et al. · 2020

Context. Planets form in protoplanetary disks and inherit their chemical composition. It is therefore crucial to understand the molecular content of protoplanetary disks in their gaseous and solid components. Aims. We aim to characterize t…

ALMA chemical survey of disk-outflow sources in Taurus (ALMA-DOT) Open

C. Codella, L. Podio, A. Garufi, Jessica Perrero, Piero Ugliengo , et al. · 2020

Context. Planet formation starts around Sun-like protostars with ages ≤1 Myr, but the chemical compositions of the surrounding discs remains unknown. Aims. We aim to trace the radial and vertical spatial distribution of a key species of S-…

ALMA chemical survey of disk-outflow sources in Taurus (ALMA-DOT). IV. Thioformaldehyde (H$_2$CS) in protoplanetary disks: spatial distributions and binding energies Open

C. Codella, L. Podio, A. Garufi, Jessica Perrero, Piero Ugliengo , et al. · 2020

Aims: To trace the radial and vertical spatial distribution of H2CS, a key species of the S-bearing chemistry, in protoplanetary disks. To analyse the observed distributions in light of the H2CS binding energy, in order to discuss the role…

ALMA chemical survey of disk-outflow sources in Taurus (ALMA-DOT) III: The interplay between gas and dust in the protoplanetary disk of DG Tau Open

L. Podio, A. Garufi, C. Codella, D. Fedele, K. L. J. Rygl , et al. · 2020

Planets form in protoplanetary disks and inherit their chemical composition. It is therefore crucial to understand the disks molecular content. We aim to characterize the distribution and abundance of molecules in the disk of DG Tau. In th…

The chemical content of planet-forming disks: towards a comparison with comets to unveil the origin of the Solar System Open

L. Podio, A. Garufi, C. Codella, D. Fedele, K. L. J. Rygl , et al. · 2020

How have planets formed in the Solar System? And what chemical composition they inherited from their natal environment? Is the chemical composition passed unaltered from the earliest stages of the formation of the Sun to its disk and then …

Square Kilometre Array Science Data Challenge 1: analysis and results Open

Anna Bonaldi, Tao An, M. Brüggen, Sandra Burkutean, Bruno Coelho , et al. · 2020

As the largest radio telescope in the world, the Square Kilometre Array (SKA) will lead the next generation of radio astronomy. The feats of engineering required to construct the telescope array will be matched only by the techniques devel…