Catalina Flores
A5023377166- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Adaptive optics and wavefront sensing
- Gamma-ray bursts and supernovae
- Astronomical Observations and Instrumentation
- Astrophysics and Cosmic Phenomena
- Satellite Communication Systems
- Space Satellite Systems and Control
- Astro and Planetary Science
- Statistical and numerical algorithms
- Radio Astronomy Observations and Technology
- Advanced X-ray and CT Imaging
- Calibration and Measurement Techniques
- Pulsars and Gravitational Waves Research
Universidad Andrés Bello
2020-2023
Millennium Institute of Astrophysics
2021-2023
Large constellations of bright artificial satellites in low Earth orbit pose significant challenges to ground-based astronomy1. Current orbiting constellation have brightnesses between apparent magnitudes 4 and 6, whereas the near-infrared Ks band, they can reach magnitude 2 (ref. 2). Satellite operators, astronomers other users night sky are working on brightness mitigation strategies3,4. Radio emissions induce further potential risk radio telescopes that also need be evaluated. Here we...
Context. The ESO public survey VISTA Variables in the Vía Láctea (VVV) surveyed inner Galactic bulge and adjacent southern disk from 2009–2015. Upon its conclusion, complementary VVV extended (VVVX) has expanded both temporal as well spatial coverage of original area, widening it 562 to 1700 sq. deg., providing additional epochs JHK s filters 2016–2023. Aims. With completion VVVX observations during first semester 2023, we present here observing strategy, a description data quality access,...
The ESO public survey VISTA Variables in the V\'ia L\'actea (VVV) surveyed inner Galactic bulge and adjacent southern disk from $2009-2015$. Upon its conclusion, complementary VVV eXtended (VVVX) has expanded both temporal as well spatial coverage of original area, widening it $562$ to $1700$ sq. deg., providing additional epochs $JHK_{\rm s}$ filters $2016-2023$. With completion VVVX observations during first semester 2023, we present here observing strategy, a description data quality...
Accurate measurement of exoplanetary masses is a critical step in addressing key aspects NASA's science vision. Measuring Earth-analogs around FGK stars out to 10 pc requires sub-microarcsecond astrometric accuracy, which not within the capabilities current instrumentation. Thus, new technology will be required build an instrument capable achieving such performance. This immediately empower possibility for dedicated missions, and perhaps most enticing, it enable observing modes added (with...
Abstract Large constellations of bright artificial satellites in low Earth orbit pose significant challenges to ground-based astronomy [1]. Currently orbiting constellation have visual brightnesses between apparent magnitudes 4 and 6, satellite operators, astronomers, other users the night sky are working on brightness mitigation strategies [2,3]. Here we report outcome an international optical observation campaign a prototype satellite, AST Space Mobile’s “BlueWalker 3”. BlueWalker 3...
Accurate measurement of exoplanetary masses is a critical step in addressing key aspects NASA's science vision. Measuring Earth-analogs around FGK stars out to 10 pc requires sub-microarcsecond astrometric accuracy, which not within the capabilities current instrumentation. Thus, new technology will be required build an instrument capable achieving such performance. This immediately empower possibility for dedicated missions, and perhaps most enticingly, it enable observing modes added any...
Detecting exoplanets and measuring their masses is a priority for astrophysics. Stellar astrometry capable of detecting unequivocally measure exoplanet masses, solving the system inclination ambiguity that constrains accuracy radial velocity techniques. The astrometric signal an Earth-like planet around nearby stars ∼ 1 micro-arcsecond (μas), while current instrumentation (Hubble, GAIA) reaches 25 μas at best. After photon noise, main limiting factor to such signals related optical...