A catalog of new Blazar candidates with Open Universe by High School students

Blazars are active galactic nuclei whose ultra-relativistic jets are coaligned with the observer direction. They emit throughout the whole e.m. spectrum, from radio waves to VHE gamma rays. Not all blazars are discovered. In this work, we propose a catalog of 54 new candidates based on the association of HE gamma ray emission and radio, X-ray an optical signatures. The relevance of this work is also that it was performed by four high school students from the Liceo Scientifico Statale Ugo Morin in Venice, Italy using the open-source platform Open Universe, in collaboration with the University of Padova. The framework of the activity is the Italian MIUR PCTO programme. The success of this citizen-science experience and results are hereafter reported and discussed.Comment: Proceedings of the 12th Cosmic Ray International Symposium (CRIS 2022), 12-16 September 2022, Naples (Italy). Send correspondence to: [email protected], [email protected]

Metal-poor star RAVE J093730.5-062655 abundances

VizieR online Data Catalogue associated with article published in journal Astronomical Journal (AAS) with title 'The R-Process Alliance: discovery of a Low-{alpha}, r-process-enhanced metal-poor star in the Galactic halo.' (bibcode: 2019ApJ...874..148S

Lockman Hole Apertif map at 1.4GHz

VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'The best of both worlds: combining LOFAR and Apertif to derive resolved radio spectral index images.' (bibcode: 2021A&A...648A...9M

R-Process Alliance: 1st release in Galactic halo

VizieR online Data Catalogue associated with article published in journal Astronomical Journal (AAS) with title 'The R-Process Alliance: first release from the northern search for r-process-enhanced metal-poor stars in the Galactic halo.' (bibcode: 2018ApJ...868..110S

Lockman Hole Apertif map at 1.4GHz

VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'The best of both worlds: combining LOFAR and Apertif to derive resolved radio spectral index images.' (bibcode: 2021A&A...648A...9M

LOFAR Bootes and 3C295 field sources

The Bootes and 3C 295 fields were simultaneously observed on 2012 April 12 as part of a multi-beam observation with the LOFAR LBA stations. The idea behind the multi-beam setup is that we use the 3C 295 observations as a calibrator field to transfer the gain amplitudes to the (target) Bootes field. The total integration time on both fields was 10.25 hr. Complete frequency coverage was obtained between 54 and 70 MHz for both fields, while non-contiguous frequency coverage was obtained between 30 and 54 MHz for the 3C 295 only. All four correlation products were recorded. By default, the frequency band was divided into sub-bands, each 195.3125 kHz wide. Each sub-band was further divided in 64 channels and the integration time was 1 s