Publications (17)
The ALMA Science Archive Reaches a Major Milestone
Felix Stoehr, Alisdair Manning, Stewart McLay +11
Science archives are cornerstones of modern astronomical facilities. In this paper we describe the version 1.0 milestone of the Atacama Large Millimeter/submillimeter Array Science…
ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): I. Detection of New Hot Corinos with ACA
Shih-Ying Hsu, Sheng-Yuan Liu, Tie Liu +29
We report the detection of four new hot corino sources, G211.47-19.27S, G208.68-19.20N1, G210.49-19.79W and G192.12-11.10 from a survey study of Planck Galactic Cold Clumps in the…
Bringing Computation to the data: Interoperable serverless function execution for astrophysical data analysis in the SRCNet
Manuel Parra-Royón, Julián Garrido-Sánchez, Susana Sánchez-Expósito +10
Serverless computing is a paradigm in which the underlying infrastructure is fully managed by the provider, enabling applications and services to be executed with elastic resource…
ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Deriving Inclination Angle and Velocity of the Protostellar Jets from their SiO Knots
Kai-Syun Jhan, Chin-Fei Lee, Doug Johnstone +23
We have selected six sources (G209.55-19.68S2, G205.46-14.56S1A, G203.21-11.20W2, G191.90-11.21S, G205.46-14.56S3, and G206.93-16.61W2) from the Atacama Large Millimeter/subm…
Detection of a dense SiO jet in the evolved protostellar phase
Somnath Dutta, Chin-Fei Lee, Doug Johnstone +25
Jets and outflows trace the accretion history of protostars. High-velocity molecular jets have been observed from several protostars in the early Class\,0 phase of star formation,…
Power spectra of outflow-driven turbulence
Anthony Moraghan, Jongsoo Kim, Suk-Jin Yoon
We investigate the power spectra of outflow-driven turbulence through high-resolution three-dimensional isothermal numerical simulations where the turbulence is driven locally in r…
An update on Fermi-LAT transients in the Galactic plane, including strong activity of Cygnus X-3 in mid-2020
Dmitry Prokhorov, Anthony Moraghan
We present a search for Galactic transient gamma-ray sources using 13 years of the Fermi Large Area Telescope data. The search is based on a recently developed variable-size slidin…
ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Evidence for a Molecular Jet Launched at an Unprecedented Early Phase of Protostellar evolution
Somnath Dutta, Chin-Fei Lee, Naomi Hirano +31
Protostellar outflows and jets play a vital role in star formation as they carry away excess angular momentum from the inner disk surface, allowing the material to be transferred t…
A study of the wiggle morphology of HH 211 through numerical simulations
Anthony Moraghan, Chin-Fei Lee, Po-Sheng Huang +1
Recent high-resolution high-sensitivity observations of protostellar jets have shown many to possess deviations to their trajectories. HH 211 is one such example where sub-mm obser…
Core collapse and horizontal-branch morphology in galactic globular clusters
Mario Pasquato, Gabriella Raimondo, Enzo Brocato +3
Context. Stellar collision rates in globular clusters (GCs) do not appear to correlate with horizontal branch (HB) morphology, sug- gesting that dynamics does not play a role in th…
Search for gamma rays from SNe with a variable-size sliding-time-window analysis of the Fermi-LAT data
Dmitry Prokhorov, Anthony Moraghan, Jacco Vink
We present a systematic search for gamma-ray emission from supernovae (SNe) in the Fermi Large Area Telescope (LAT) Pass 8 data. The sample of targets consists of 55,880 candidates…
First Detection of A Linear Structure in the Midplane of the Young HH 211 Protostellar Disk: A Spiral Arm?
Chin-Fei Lee, Kai-Syun Jhan, Anthony Moraghan
Spiral structures have been detected in evolved protostellar disks, driving the disk accretion towards the central protostars to facilitate star formation. However, it is still unc…
ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP) II. Survey overview: a first look at 1.3 mm continuum maps and molecular outflows
Somnath Dutta, Chin-Fei Lee, Tie Liu +32
Planck Galactic Cold Clumps (PGCCs) are contemplated to be the ideal targets to probe the early phases of star formation. We have conducted a survey of 72 young dense cores inside…
The Shaping of the Multipolar Pre-Planetary Nebula CRL 618 by Multi-directional Bullets
Po-Sheng Huang, Chin-Fei Lee, Anthony Moraghan +1
In order to understand the formation of the multipolar structures of the pre-planetary nebula (PPN) CRL 618, we perform 3D simulations using a multi-directional bullet model. The o…
Density distributions of outflow driven turbulence
Anthony Moraghan, Jongsoo Kim, Suk-Jin Yoon
Protostellar jets and outflows are signatures of star formation and promising mechanisms for driving supersonic turbulence in molecular clouds. We quantify outflow-driven turbulenc…
Episodic Accretion in Protostars -- An ALMA Survey of Molecular Jets in the Orion Molecular Cloud
Somnath Dutta, Chin-Fei Lee, Doug Johnstone +20
Protostellar outflows and jets are almost ubiquitous characteristics during the mass accretion phase, and encode the history of stellar accretion, complex-organic molecule (COM) fo…
ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Detection of extremely high density compact structure of prestellar cores and multiple substructures within
Dipen Sahu, Sheng-Yuan Liu, Tie Liu +38
Prestellar cores are self-gravitating dense and cold structures within molecular clouds where future stars are born. They are expected, at the stage of transitioning to the protost…