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Sökning: AMNE:(NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi) > Rapport

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1.
  • Valtonen-Mattila, Nora (författare)
  • IceCube Search of MeV Neutrino Bursts Correlated with Gravitational Waves from LIGO-Virgo-KAGRA
  • 2024
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • Numerous models predict MeV neutrino production correlated with gravitational waves from neutron star merger systems. The IceCube Neutrino Observatory is sensitive to the MeV neutrinos from bright transients such as core-collapse supernovae via the Supernova Data Acquisition system (SNDAQ). We perform a search for MeV neutrinos correlated with gravitational waves, using the data recorded by SNDAQ and the times of the gravitational wave detections. We searched in four different search windows: 0.5 s, 1.5 s, 4 s, and 10 s. We then perform a binomial test on the two populations in the catalog: those events that contain no neutron star (Binary black hole mergers) and events that contain at least one neutron star (binary neutron star mergers and black hole - neutron star mergers).
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  • Hjort, Adam, 1990- (författare)
  • Synthetic photometry of M-type AGB stars with JWST & WISE
  • 2017
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • In this study we present a data set of synthetic photometry of M-type AGB stars for JWST, WISE and a filter set that will be referred to as the generic lter set, consisting of: UX BX B V R I J J2m H H2m Ks2m K L L' M M'. 106 dierent models compromised of 4741 spectra have been processed for the three filter sets. We have also fitted the models to eight observations of M-type AGB stars made by WISE, showing that the models fairly well can recreate observations but that there is definitely still room for improvements. The resulting photometric files can be accessed at http://www.astro.uu.se/AGBmodels/ABmags
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  • Beswick, R. J., et al. (författare)
  • MERLIN radio observations of two recent supernovae in Arp299 : SN2010O & SN2010P
  • 2010
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • We report MERLIN radio observations of the two recent supernovae in Arp299; SN2010P and SN2010O (CBET #2145 and CBET #2144, respectively). Observations of Arp299 were made between 1900UT 29th Jan 2010 and 0150UT 1st Feb 2010 at 4994MHz. The previously known compact radio structure of Arp299, including the nuclear starburst components associated with A=IC694 and B1=the southernmost nucleus of NGC3690 are detected (Neff, Ulvestad & Teng 2004, ApJ, 611, 186; Ulvestad 2009 AJ, 138, 152; Perez-Torres et al 2009, A&A 507, 17).
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  • Pastorello, A., et al. (författare)
  • Detection of PTF10cwr/CSS100313 on PS1 sky survey images and host galaxy identification
  • 2010
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • We report that the transient PTF10cwr (Quimby et al. ATEL #2492), a.k.a. CSS100313:112547-084941 (Mahabal et al. ATel #2490), was also recovered on images from the Pan-STARRS Telescope #1 (PS1) as part of the PS1 3Pi survey (PS1-1000037). Magnitudes of i=18.96 and r=18.65 where measured with respect to SDSS sequence stars on March 12.45 and 13.49 UT respectively. Further photometry was gathered at the Liverpool Telescope on March 20.92 and March 23.00 UT.
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  • Resultat 1-10 av 43

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