activity
20182026
most citedA measure of the size of the magnetospheric accretion region in TW Hydrae

42 citations · 354 across the 53 of their papers we have counts for

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31 papers · 1 filter

astro-ph.GA2026

Discovery of thermal radio recombination line emission toward the high-mass protostar IRAS181622048

R. Fedriani, J. F. Gomez, Y. Cheng +7

The physical conditions within the innermost few tens of au of high-mass protostars () remain largely unexplored. At these scales, ionised emission may trace photoio…

astro-ph.GA2026

Low-Metallicity Star Formation Survey in Sh2-284 (LZ-STAR): The Core Mass Function

Yu Cheng, Jonathan C. Tan, Morten Andersen +4

We present an ALMA 1.3~mm dust continuum study of the dense core mass function (CMF) in Sh2-284, a low metallicity outer Galaxy star-forming complex with --.…

astro-ph.GA2026

ALMA Central molecular zone Exploration Survey (ACES) V: CS(2-1), SO(2_3-1_2), CH3CHO(5_1,4-4_1,3), HC3N(11-10), and H40a lines data

Pei-Ying Hsieh, Daniel L. Walker, Adam Ginsburg +59

We present data from the ALMA Central Molecular Zone Exploration Survey (ACES) Large Program, which provides broad spectral-line and 3 mm continuum coverage of the Central Molecula…

astro-ph.GA2026

ALMA Central Molecular Zone Exploration Survey (ACES)-IV. Data of the two intermediate-width spectral windows

Xing Lu, Daniel L. Walker, Adam Ginsburg +61

We release the intermediate-width spectral window data from the ALMA Central Molecular Zone Exploration Survey (ACES) Large Program, which covers SiO(2-1), SO(2_2-1_1), H13CO+(1-0)…

astro-ph.GA2026

ALMA Central Molecular Zone Exploration Survey (ACES) I: Overview

Steven N. Longmore, John Bally, Ashley T. Barnes +95

The mass flows and energy cycles within the inner regions of galaxies exert a powerful influence on the evolution of the galaxy population. The centre of the Milky Way is the only…

astro-ph.GA2026

ALMA Central molecular zone Exploration Survey (ACES) III: Molecular line data reduction and HNCO and HCO data

Daniel L. Walker, Adam Ginsburg, Ashley T. Barnes +64

The ALMA Central molecular zone Exploration Survey (ACES) large program has observed the inner ~ 200 pc of the Milky Way at 3 mm (Band 3) using ALMA's 12m, 7m, and Total Power arra…

astro-ph.GA2026

ALMA Central Molecular Zone Exploration Survey (ACES) II: 3mm continuum images

Adam Ginsburg, Daniel L. Walker, Ashley T. Barnes +69

The ALMA Central Molecular Zone Exploration Survey, ACES, has mapped square arcminutes at 3 mm toward the center of our Galaxy. ACES provides the first large-scale, h…

astro-ph.GA2026

Herschel/HIFI Observations of Molecular Lines Toward G10.47+0.03

Indrajit Mondal, Prasanta Gorai, Ankan Das +6

We present a spectral line analysis of the hot molecular core G10.47+0.03 (hereafter, G10). Our aim is to determine molecular abundances and excitation conditions across a wide spe…

astro-ph.GA2025★ 1 cited

Chemical complexity in star formation induced by stellar feedback: cores shock-formed by the supernova remnant W44

G. Cosentino, I. Jiménez-Serra, F. Fontani +8

Low-velocity shocks from Supernova Remnants (SNRs) may set the physical and chemical conditions of star formation in molecular clouds. Recent evidence suggests that the Sun might h…

astro-ph.GA2025

Diverse stages of star formation in the IRAS 18162-2048 region. Emergence of UV Feedback

R. Fedriani, G. Anglada, A. Caratti o Garatti +15

Methods: We obtained adaptive optics-assisted integral field spectroscopy in the near-infrared (IR) band () with VLT/SINFONI, complemented by VLA X and C…

astro-ph.GA2025

The SOMA MM Survey. I. An Astrochemical Census of Massive Protostars

D. Gigli, P. Gorai, C. Y. Law +9

During massive star formation, dense gas undergoes chemical evolution, producing both simple and complex organic molecules (COMs) characteristic of hot molecular cores. How this ev…

astro-ph.GA2025★ 3 cited

The JWST-NIRCam View of Sagittarius C. III. The Extinction Curve

Lucía Bravo Ferres, Francisco Nogueras-Lara, Rainer Schödel +8

Determining the infrared extinction curve towards the Galactic centre is crucial for accurately correcting observed data and deriving the underlying stellar populations. However, e…

astro-ph.GA2025

Low-Metallicity Star Formation Survey in Sh2-284 (LZ-STAR). II. The initial mass function

M. Andersen, A. Brizawasi, Y. Cheng +5

To fully understand the star formation process, we are compelled to study it in a variety of environments. Of particular interest are how star formation and the resulting initial m…

astro-ph.GA2025

Low-Metallicity Star Formation Survey in Sh2-284 (LZ-STAR). I. Ordered massive star formation in the outer Galaxy

Yu Cheng, Jonathan C. Tan, Morten Andersen +5

Star formation is a fundamental, yet poorly understood, process of the Universe. It is important to study how star formation occurs in different galactic environments. Thus, here,…

astro-ph.GA2024★ 6 cited

The JWST-NIRCam View of Sagittarius C. II. Evidence for Magnetically Dominated HII Regions in the CMZ

John Bally, Samuel Crowe, Rubén Fedriani +11

We present JWST-NIRCam narrow-band, 4.05 m Brackett- images of the Sgr C HII region, located in the Central Molecular Zone (CMZ) of the Galaxy. Unlike any HII region in the S…

astro-ph.GA2024

The SOFIA Massive (SOMA) Star Formation Survey. V. Clustered Protostars

Zoie Telkamp, Ruben Fedriani, Jonathan C. Tan +16

We present m SOFIA-FORCAST images of seven regions of ``clustered" star formation as part of the SOFIA Massive (SOMA) Star Formation Survey. We identify a total of 34…

astro-ph.GA2024★ 5 cited

Interaction between the Supernova Remnant W44 and the Infrared Dark Cloud G034.77-00.55: shock induced star formation?

G. Cosentino, I. Jiménez-Serra, A. T. Barnes +11

How Supernova Remnant (SNR) shocks impact nearby molecular clouds is still poorly observationally constrained. It is unclear if SNRs can positively or negatively affect clouds star…

astro-ph.GA2024★ 5 cited

The SOFIA Massive (SOMA) Star Formation Q-band follow-up I. Carbon-chain chemistry of intermediate-mass protostars

Kotomi Taniguchi, Prasanta Gorai, Jonathan C. Tan +10

Evidence for similar chemical characteristics around low- and high-mass protostars has been found: in particular, a variety of carbon-chain species and complex organic molecules (C…

astro-ph.GA2024

The JWST-NIRCam View of Sagittarius C. I. Massive Star Formation and Protostellar Outflows

Samuel Crowe, Rubén Fedriani, Jonathan C. Tan +14

We present James Webb Space Telescope (JWST)-NIRCam observations of the massive star-forming molecular cloud Sagittarius C (Sgr C) in the Central Molecular Zone (CMZ). In conjuncti…

astro-ph.GA2024

Spectroscopy evidence for a so far unknown young stellar cluster at the Galactic Center

Á. Martínez-Arranz, R. Schödel, F. Nogueras-Lara +2

The Nuclear Stellar Disk has been a highly active star-forming region in the Milky Way for approximately the last 30 million years. Despite hosting prominent clusters like Arches,…

astro-ph.GA2023

Radio outburst from a massive (proto)star. II. A portrait in space and time of the expanding radio jet from S255 NIRS3

R. Cesaroni, L. Moscadelli, A. Caratti o Garatti +6

Observations indicate that the accretion process in star formation may occur through accretion outbursts. This phenomenon has also now been detected in a few young massive (proto)s…

astro-ph.GA2023★ 6 cited

The JWST Galactic Center Survey -- A White Paper

Rainer Schoedel, Steve Longmore, Jonny Henshaw +111

The inner hundred parsecs of the Milky Way hosts the nearest supermassive black hole, largest reservoir of dense gas, greatest stellar density, hundreds of massive main and post ma…

astro-ph.GA2023★ 9 cited

Deuterium Fractionation across the Infrared Dark Cloud G034.77-00.55 interacting with the Supernova Remnant W44

G. Cosentino, J. C. Tan, I. Jiménez-Serra +10

Supernova remnants (SNRs) may regulate star formation in galaxies. For example, SNR-driven shocks may form new molecular gas or compress pre-existing clouds and trigger the formati…

astro-ph.GA2023

Astrochemical Diagnostics of the Isolated Massive Protostar G28.20-0.05

Prasanta Gorai, Chi-Yan Law, Jonathan C. Tan +8

We study the astrochemical diagnostics of the isolated massive protostar G28.20-0.05. We analyze data from ALMA 1.3~mm observations with resolution of 0.2 arcsec (1,000 au).…