93 citations · 509 across the 27 of their papers we have counts for
29 papers
Intermediate- and high-resolution optical spectroscopy on the nascent planetary nebula Vy 2-2: Evidence of binary-star evolution
Roldán A. Cala, Luis F. Miranda, José F. Gómez +2
Planetary nebulae (PNe) tend to show spectacular non-spherical shapes whose origin is not fully understood. Crucial information about PNe formation can be obtained by studying thei…
Very Long Baseline Interferometry with the SKA Observatory
J. F. Radcliffe, J. Yang, Z. Paragi +129
Very Long Baseline Interferometry (VLBI) is a fundamental technique that combines signals from telescopes separated by thousands of kilometres to obtain some of the highest-resolut…
Cosmic Rulers: Masers as Tools for Probing Structure in the Galaxy and Beyond, from AU to kpc
Kazi L. J. Rygl, Anna Bartkiewicz, Olga Bayandina +9
Maser emission provides an unique window into astronomical sources across vast spatial scales - from tens to hundreds of astronomical units around protostars and evolved stars up t…
A neutral hydrogen absorption study of cold gas in the outskirts of the Magellanic Clouds using the GASKAP-HI survey
Hongxing Chen, Snežana Stanimirović, Nickolas M. Pingel +18
Cold neutral hydrogen (HI) is a crucial precursor for molecular gas formation and can be studied via HI absorption. This study investigates HI absorption in low column density regi…
A Galactic Eclipse: The Small Magellanic Cloud is Forming Stars in Two, Superimposed Systems
Claire E. Murray, Sten Hasselquist, Joshua E. G. Peek +22
The structure and dynamics of the star-forming disk of the Small Magellanic Cloud (SMC) have long confounded us. The SMC is widely used as a prototype for galactic physics at low m…
FLASHING: Project Overview
Hiroshi Imai, Yuhki Hamae, Kei Amada +8
This paper describes the overview of the FLASHING (Finest Legacy Acquisitions of SiO-/ HO-maser Ignitions by the Nobeyama Generation) project promoted using the 45 m telescope…
A Keplerian disk with a four-arm spiral birthing an episodically accreting high-mass protostar
R. A. Burns, Y. Uno, N. Sakai +34
High-mass protostars (M 8 M) are thought to gain the majority of their mass via short, intense bursts of growth. This episodic accretion is thought to be faci…
Evolution of the outflow in the water fountain source IRAS 180432116
L. Uscanga, H. Imai, J. F. Gómez +5
We present the spectral and spatial evolution of HO masers associated with the water fountain source IRAS 180432116 found in the observations with the Nobeyama 45 m telescop…
HI filaments as potential compass needles? Comparing the magnetic field structure of the Small Magellanic Cloud to the orientation of GASKAP-HI filaments
Y. K. Ma, N. M. McClure-Griffiths, S. E. Clark +12
High-spatial-resolution HI observations have led to the realisation that the nearby (within few hundreds of parsecs) Galactic atomic filamentary structures are aligned with the amb…
Searching for nascent planetary nebulae: OHPNe candidates in the SPLASH survey
Roldán A. Cala, José F. Gómez, Luis F. Miranda +7
The evolution of asymptotic giant branch stars from the spherical symmetry into the diverse shapes of planetary nebulae (PNe) is a topic of intensive research. Young PNe provide a…
GASKAP-HI Pilot Survey Science I: ASKAP Zoom Observations of HI Emission in the Small Magellanic Cloud
N. M. Pingel, J. Dempsey, N. M. McClure-Griffiths +53
We present the most sensitive and detailed view of the neutral hydrogen (HI) emission associated with the Small Magellanic Cloud (SMC), through the combination of data from the Aus…
The reactivation of water maser emission in the planetary nebula IRAS 18061--2505 through a born-again episode
L. F. Miranda, O. Suárez, L. Olguín +12
Water maser emitting planetary nebulae (HO-PNe) are believed to be among the youngest PNe. We present new optical narrow- and broad-band images, intermediate- and high-resoluti…
FLASHING: New high-velocity HO masers in IRAS 182860959
Hiroshi Imai, Yuri Uno, Daichi Maeyama +8
We discovered new high-velocity components of HO maser emission in one of the "water fountain" sources, IRAS~182860959, which has been monitored using the Nobeyama 45 m tele…
Rapidly-evolving episodic outflow in IRAS 18113-2503: clues to the ejection mechanism of the fastest water fountain
Gabor Orosz, Jose F. Gomez, Hiroshi Imai +11
Water fountains are evolved stars showing early stages of collimated mass loss during transition from the asymptotic giant branch, providing valuable insight into the formation of…
ALMA imaging of the nascent planetary nebula IRAS 15103-5754
Jose F. Gomez, Gilles Niccolini, Olga Suarez +5
We present continuum and molecular line (CO, CO, HCO) observations carried out with the Atacama Large Millimeter/submillimeter Array toward the "water fountain" star IRA…
Interferometric confirmation of "water fountain" candidates
Jose F. Gomez, Olga Suarez, J. Ricardo Rizzo +4
Water fountain stars (WFs) are evolved objects with water masers tracing high-velocity jets (up to several hundreds of km s). They could represent one of the first manifesta…
A search for water maser emission from brown dwarfs and low-luminosity young stellar objects
Jose F. Gomez, Aina Palau, Lucero Uscanga +2
We present a survey for water maser emission toward a sample of 44 low-luminosity young objects, comprising (proto-)brown dwarfs, first hydrostatic cores (FHCs), and other young st…
Polarization properties of OH emission in planetary nebulae
Jose F. Gomez, Lucero Uscanga, James A. Green +3
We present interferometric, full-polarization observations of the four ground-state transitions of OH, toward five confirmed and one candidate OH-emitting planetary nebulae (OHPNe)…
Time-variable non-thermal emission in the planetary nebula IRAS 15103-5754
Olga Suarez, Jose F. Gomez, Philippe Bendjoya +6
The beginning of photoionization marks the transition between the post-Asymptotic Giant Branch (post-AGB) and planetary nebula (PN) phases of stars with masses < 8 M_sun. This crit…
The first "water fountain" collimated outflow in a planetary nebula
J. F. Gomez, O. Suarez, Ph. Bendjoya +8
"Water fountains" (WFs) are evolved objects showing high-velocity, collimated jets traced by water maser emission. Most of them are in the post-Asymptotic Giant Branch and they may…
ALMA sub-mm maser and dust distribution of VY Canis Majoris
A. M. S. Richards, C. M. V. Impellizzeri, E. M. Humphreys +25
Cool, evolved stars have copious, enriched winds. The structure of these winds and the way they are accelerated is not well known. We need to improve our understanding by studying…
HO maser emission associated with the planetary nebula IRAS 163334807
L. Uscanga, J. F. Gómez, L. F. Miranda +5
We present simultaneous observations of HO maser emission and radio continuum at 1.3 cm carried out with the Australia Telescope Compact Array towards two sources, IRAS 16333$-…
Modelling the 3D morphology and proper motions of the planetary nebula NGC 6302
L. Uscanga, P. F. Velázquez, A. Esquivel +3
We present 3D hydrodynamical simulations of an isotropic fast wind interacting with a previously ejected toroidally-shaped slow wind in order to model both the observed morphology…
A sensitive search for methanol line emission toward evolved stars
J. F. Gomez, L. Uscanga, O. Suarez +2
We present a sensitive search for methanol line emission in evolved stars at 1 cm, aiming to detect, for the first time, methanol masers in this type of objects. Our sample compris…