Béla Arwen Research Journal (Summer '22)





-- Massimo Capasso - 2022-06-16



- first time accessing Twiki Journal today


  • continued my work on the SED model for 1215 with major success. Have only a little left to alter for a final fit which this is getting close to.
  • read through the decadal survey from VERITAS, focusing on what has relevance to my work. Was very long and complicated so I will need to go back this resource later.
  • Started to focus on the material I am going to present on Tuesday to the REU group at the REU lunch
    • Want to be more specific with the scientific theory
    • inverse Compton scattering
    • photon reabsorption
    • leptonic vs hadronic modeling
  • ran into hardware issues, my computer would not let me use the trackpad or keyboard
    • went to the apple store and a new computer isn't available for a couple of months...
  • my computer still had issues today but they were resolved by restarting my computer 4 times and leaving it to sit unplugged and shut down for 20 minutes
  • beginning the creation of the slides for the presentation Tuesday.
    • will likely have this as something to continue working on over the break weekend (July 4th)



  • finalized and presented presentation on Blazar physics to REU group
  • gave up on my computer in favor of the spare
  • beginning VEGAS analysis of 1ES 1215+303 for 2021
    • running a crab analysis again to make sure I can do the steps properly
    • will be applying timecuts in the method Leela recommends from thier own experience with VEGAS
  • source has only 3 runs in 2021 which are of acceptable quality (only 1 other run of 'D' quality) to be included in the analysis (timecuts noted)
    • 97993
      • timecut from 10.25 - 11 min
    • 98127
    • 98346
      • timecut from 10.5 - 11.5 min and
      • timecut from 17 - 20.5 min (both)
  • hope to have spectrum, skymap, and lightcurve for this source by the end of the week
  • successfully complete a trial crab analysis
  • set up and began VEGAS analysis of 1ES1215+303
    • downloaded the appropriate runs
    • applied correct time cuts
    • began stages 1-5
  • started work on final presentation/paper
  • Meet with Dr. Muhkerjee to discuss progress and upcoming meeting with the group from CalPoly
    • need to prepare slides for group meeting thursday as well as friday's meeeting
      • Fridays slides: Blazar physics and accelerated jets / SED modeling



  • day off - trip to BNL
  • Ran stage6 and began intrepretation of output
  • using massimo's plotting code for stage6, got significance map and Excess counts map for 121
    • need to now learn more about what these are, the science behind them, and create slides about them
    • understand generally:
      • significance map : source - background / width of source (?)
      • excess counts : counts which are above the background noise (source - background)
    • need to get to the point where I understand how they can be useful to analysis
  • Want to plot flux with archival data I have been plotting already
  • have preliminary slides created for meeting with CalPoly, but need to flesh them out a little more, especially with respect to the main focus which should be SED modeling
  • analysis of 1215+303 was insignificant and may try to rerun analysis with the inclusion of 1218+304


This topic: Veritas > WebHome > GroupMeetings > SummerResearchJournals > 2022Journals > 2022BelaArwenResearchJournal
Topic revision: r8 - 2022-07-13 - BelaArwen
This site is powered by the TWiki collaboration platform Powered by PerlCopyright © 2008-2022 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Send feedback