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SUMMARY:Measuring the Hubble constant from AGN continuum time delay in LSS
 T data
DTSTART;VALUE=DATE-TIME:20261020T093500Z
DTEND;VALUE=DATE-TIME:20261020T095500Z
DTSTAMP;VALUE=DATE-TIME:20261112T103435Z
UID:indico-contribution-437-2261@events.ncbj.gov.pl
DESCRIPTION:Speakers: Shivangi Pandey (Center for theoretical Physics PAS)
 \nDetermining the Hubble constant through active galactic nuclei continuum
  reverberation mapping requires high quality photometric light curves to d
 isentangle physical components near supermassive black holes. Within the f
 ramework of the Rubin LSST In Kind Contribution POL NCB S6\, we utilize ou
 r dedicated HORIZON AGN code software to model continuum light curves and 
 spectral energy distributions. This physically motivated framework incorpo
 rates standard Shakura Sunyaev accretion disks\, lamppost X ray irradiatio
 n\, warm coronas\, diffuse continuum and line emission from the radiation 
 pressure regulated broad line region\, and dusty torus reprocessing. By si
 multaneously fitting continuum lag spectra and broad spectral energy distr
 ibutions\, HORIZON AGN treats the accretion rate and luminosity distance a
 s free parameters\, yielding an independent measurement of the Hubble cons
 tant.\n\nWe have successfully applied this framework to two completed sour
 ces\, archival data of NGC 5548 and our first target Fairall 9 from the Hu
 bble Constant Constraint through AGN Light curve Observations program at O
 bserwatorium Cerro Murphy\, while modeling for a third target is currently
  in progress. These targets illustrate the light curve quality needed for 
 accurate time delay recovery. \n\nLooking ahead\, the Vera C Rubin Observa
 tory will deliver transformative datasets. For Data Release 2\, light curv
 es spanning 6 filters (u\, g\, r\, i\, z\, y) will benefit from up to a fu
 ll year of continuous rolling history and forced photometry precision bett
 er than 20 milli magnitudes\, where 1 mmag equals one thousandth of a magn
 itude or sub percent flux accuracy. In the LSST Deep Drilling Fields\, thi
 s photometric precision combined with continuous baseline monitoring will 
 dramatically improve continuum light curve resolution for vast AGN samples
 . However\, applying HORIZON AGN to hundreds of sources requires reducing 
 model free parameters. In this talk\, I will present results from our comp
 leted and in progress targets\, evaluate light curve standards for continu
 um mapping\, and outline our strategy to optimize HORIZON AGN for upcoming
  Rubin LSST datasets.\n\nhttps://events.ncbj.gov.pl/event/502/contribution
 s/2261/
LOCATION:
URL:https://events.ncbj.gov.pl/event/502/contributions/2261/
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BEGIN:VEVENT
SUMMARY:Synergistic Science with Rubin and MeerKAT
DTSTART;VALUE=DATE-TIME:20261020T095500Z
DTEND;VALUE=DATE-TIME:20261020T101500Z
DTSTAMP;VALUE=DATE-TIME:20261112T103435Z
UID:indico-contribution-437-2262@events.ncbj.gov.pl
DESCRIPTION:Speakers: Unnikrishnan Sureshkumar (NCBJ)\nPanchromatic data\,
  by combining observations across multiple wavelengths\, offer an unparall
 eled\, comprehensive view of galaxies. This enables the determination of k
 ey physical properties and leads to discoveries not possible with single-w
 avelength data alone. While Rubin is preparing to make enormous discoverie
 s in the optical wavebands\, the MeerKAT radio telescope in South Africa i
 s providing wide-field radio continuum imaging of the same sky observed by
  Rubin. These radio continuum observations are crucial as they provide dus
 t extinction-free star formation rates (SFR) of galaxies\, as well as the 
 properties of Active Galactic Nuclei (AGN). In this talk\, I will present 
 a semi-automated pipeline\, developed as a part of the South African in-ki
 nd contribution towards the LSST Galaxy Science Collaboration. This pipeli
 ne is designed for MeerKAT data reduction\, source extraction and cross-ma
 tching them with the optical data from Rubin and hence creating a powerful
  synergistic dataset. The resulting multi-wavelength catalog will be highl
 y beneficial for diverse science cases\, including accurate SFR estimation
 \, precise source counts\, and detailed radio source clustering analyses. 
 I will also present preliminary results using existing sources extracted f
 rom MeerKAT images\, cross-matched with the DECaLS optical survey\, demons
 trating the immediate utility of this approach.\n\nhttps://events.ncbj.gov
 .pl/event/502/contributions/2262/
LOCATION:
URL:https://events.ncbj.gov.pl/event/502/contributions/2262/
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BEGIN:VEVENT
SUMMARY:Statust of LSST and Polish consortium
DTSTART;VALUE=DATE-TIME:20261020T091500Z
DTEND;VALUE=DATE-TIME:20261020T093500Z
DTSTAMP;VALUE=DATE-TIME:20261112T103435Z
UID:indico-contribution-437-2260@events.ncbj.gov.pl
DESCRIPTION:Speakers: Agnieszka Pollo (National Centre for Nuclear Researc
 h AND Jagiellonian University)\nTBD\n\nhttps://events.ncbj.gov.pl/event/50
 2/contributions/2260/
LOCATION:
URL:https://events.ncbj.gov.pl/event/502/contributions/2260/
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