A5004527100- Galaxies: Formation, Evolution, Phenomena
- Astrophysical Phenomena and Observations
- Astrophysics and Star Formation Studies
- Astronomy and Astrophysical Research
- Astrophysics and Cosmic Phenomena
- X-ray Spectroscopy and Fluorescence Analysis
- Advanced X-ray Imaging Techniques
- Stellar, planetary, and galactic studies
- Neutrino Physics Research
- Dark Matter and Cosmic Phenomena
- Astronomical Observations and Instrumentation
- Gamma-ray bursts and supernovae
- Veterinary Equine Medical Research
- Plant Water Relations and Carbon Dynamics
University of Concepción
2018-2023
Pontificia Universidad Católica de Chile
2022-2023
The $z$~0.1 type-2 QSO J1430+1339 (the 'Teacup') is a complex galaxy showing loop of ionised gas ~10 kpc in diameter, co-spatial radio bubbles, compact (~1 kpc) jet, and outflow activity. We used VLT/MUSE optical integral field spectroscopic observations to characterise the properties effects galactic from up tens scales compare them with those jet. detect velocity dispersion enhancement (>300 km/s) elongated over several perpendicular AGN ionisation lobes, fast outflow, similar what found...
We aim to measure the mass of supermassive black hole (SMBH) in S0 galaxy using CO J:3-2 emission from 5 nuclear rotating molecular disk. imaged kpc-scale gas disk at 0 (∼28 pc) spatial and 28 spectral resolution line neighboring continuum, with Atacama Large Millimeter Array (ALMA). used Hubble Space Telescope ( imaging stellar ionized kinematics 100 pc kpc-scales, derived integral field spectroscopy, determine morphology circular velocity attributed potential. Markov chain Monte Carlo...
We present the molecular gas morphology and kinematics of seven nearby Seyfert galaxies obtained from our 230~GHz ALMA observations. The CO J=2-1 within inner $\sim30$" ($\lesssim9$~kpc) reveals rotation patterns that have been explored using Bertola model a modified version Kinemetry package. latter algorithm various deviations pure circular in kiloparsec all galaxies, including kinematic twists, decoupled counter-rotating cores. A comparison global stellar show overall agreement position...
NGC 3393, a nearby Seyfert 2 galaxy with nuclear radio jets, large-scale and bars, posited secondary super massive black hole, provides an interesting laboratory to test the physics of inflows outflows. Here we present analyse molecular gas (ALMA observations CO J:2-1 emission over field view (FOV) 45\arcsec \times 45\arcsec, at 0\farcs56 (143 pc) spatial 5 km/s spectral resolution), ionised stars (GEMINI-GMOS/IFU; FOV 4\arcsec 5\arcsec, 0\farcs62 (159 23 resolution) in 3393. The emission,...
We aim to map the distribution and kinematics of molecular ionized gas in a sample active galaxies, quantify nuclear inflows outflows. Here, we analyze NGC 1566 via ALMA observations CO J:2-1 emission at 24 pc spatial $\sim$2.6 km s$^{-1}$ spectral resolution, Gemini-GMOS/IFU lines stellar absorption similar 123 intrinsic resolution. The morphology stellar, (CO) ([N II]) are compared expectations from rotation, outflows, streaming inflows. While both show rotation signatures, there...
We present integral field spectroscopic observations of NGC 5972 obtained with the Multi Unit Spectroscopic Explorer (MUSE) at VLT. is a nearby galaxy containing both an active galactic nucleus (AGN), and extended emission line region (EELR) reaching out to $\sim 17$ kpc from nucleus. analyze physical conditions EELR using spatially-resolved spectra, focusing on radial dependence ionization state together light travel time distance probe variability AGN $\gtrsim 10^{4}$ yr timescales. The...
Abstract We present optical and near-IR Integral Field Unit (IFU) ALMA band 6 observations of the nearby dual active galactic nuclei (AGNs) Mrk 463. At a distance 210 Mpc, nuclear separation ∼4 kpc, 463 is an excellent laboratory to study gas dynamics, star formation processes supermassive black hole (SMBH) accretion in late-stage gas-rich major galaxy merger. The IFU reveal complex morphology, including tidal tails, star-forming clumps, emission-line regions. data, which map full extent...
We present two-dimensional stellar and gaseous kinematics of the inner 0.7 $\times$ 1.2 kpc$^{2}$ Seyfert galaxy ESO 362-G18, derived from optical spectra obtained with GMOS/IFU on Gemini South telescope at a spatial resolution $\approx$170 pc spectral 36 km s$^{-1}$. 362-G18 is strongly perturbed morphological type Sa or S0/a, minor merger approaching along NE direction. Previous studies have shown that [OIII] emission shows fan-shaped extension $\approx$ 10\arcsec\ to SE. detect doublet,...
ABSTRACT We present two-dimensional ionized gas and stellar kinematics in the inner 1.4 × 1.9 kpc2 of Seyfert 2 galaxy ESO 153-G20 obtained with Gemini-South/Gemini multi-object spectrograph integral field unit (GMOS-IFU) at a spatial resolution ~250 pc spectral 36 km s−1. Strong [O iii], Hα, [N ii] [S emission lines are detected over entire view. The trace circular rotation projected velocity amplitude ±96 s−1, kinematic major axis position angle 11°, an average dispersion 123 To analyse...
ABSTRACT We present Chandra X-ray Observatory observations and Space Telescope Imaging Spectrograph spectra of NGC 5972, one the 19 ‘Voorwerpjes’ galaxies. This galaxy contains an extended emission-line region (EELR) arcsecond scale nuclear bubble. 5972 is a faded active galactic nucleus (AGN), with EELR luminosity suggesting 2.1 dex decrease in Lbol last ∼5 × 104 yr. investigate role AGN feedback exciting bubble given long-term variability potential accretion state changes. detect...
ABSTRACT As part of a high-resolution observational study feeding and feedback processes occurring in the vicinity active galactic nucleus 40 galaxies, we observed inner 3${^{\prime\prime}_{.}}$5 × 5 arcsec nearby spiral Seyfert 2 galaxy UGC 2024 with integral field unit Gemini-South Telescope. The observations enabled stellar gas kinematics this region at spatial resolution 0${^{\prime\prime}_{.}}$5 (218 pc), spectral 36 km s−1 over wavelength range 4100–7300 Å. For strongest emission-lines...
Context. The source population(s) of ultra-high energy cosmic rays (UHECRs) with energies ≥57 × 10 18 eV (57 EeV) are still unknown and continue to be a subject debate. published arrival directions 303 UHECRs from the Pierre Auger Observatory Telescope Array enable correlations astronomical sources. However, deflections in Galactic Magnetic Field (GMF) can considerable, especially for heavy UHECR compositions. Aims. We aim constrain source(s) by focusing on subset that experience minimal...
We present Chandra X-ray Observatory observations and Space Telescope Imaging Spectrograph spectra of NGC 5972, one the 19 "Voorwerpjes" galaxies. This galaxy contains an Extended Emission Line Region (EELR) arc-second scale nuclear bubble. 5972 is a faded AGN, with EELR luminosity suggesting 2.1 dex decrease in L$_{\textrm{bol}}$ last $\sim5\times10^{4}$ yr. investigate role AGN feedback exciting bubble given long-term variability potential accretion state changes. detect broadband (0.3-8...