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Articles by Ariel Goobar
SN Zwicky: uncovering a population of gravitational lens galaxies with magnified "standard candles"
SN Zwicky: uncovering a population of gravitational lens galaxies with magnified "standard candles" Domaines Origine Fichiers éditeurs autorisés sur une archive ouverte Licence
White Dwarfs in Dwarf Spheroidal Galaxies: A New Class of Compact-Dark-Matter Detectors
Recent surveys have discovered a population of faint supernovae, known as Ca-rich gap transients, inferred to originate from explosive ignitions of white dwarfs. In addition to their unique spectra and luminosities, these supernovae have an unusual spatial distribution and are predominantly found at large distances from their presumed host galaxies.
Constraining MeV-scale axionlike particles with Fermi-LAT observations of SN 2023ixf
The Fermi-LAT observations of SN 2023ixf, a type II supernova in the nearby Pinwheel Galaxy, Messier 101 (M101), presents us with an excellent opportunity to constrain MeV-scale axionlike particles (ALPs). By examining the photon decay signature from heavy ALPs that could be produced in the explosion, the existing constraints on the ALP-photon coupling can be improved, under optimistic assumptions, by up to a factor of ∼2 for masses ma≲3 MeV.
Author Correction: Uncovering a population of gravitational lens galaxies with magnified standard candle SN Zwicky - Nature Astronomy
Correction to: Nature Astronomy https://doi.org/10.1038/s41550-023-01981-3. Published online 12 June 2023. In the version of this article initially published, the given name of Jozsef Vinko was misspelled as Yozsef and has now been corrected in the HTML and PDF versions of the article.
Uncovering a population of gravitational lens galaxies with magnified standard candle SN Zwicky - Nature Astronomy
Supernova survey and follow-up The ZTF has been monitoring the transient sky at optical wavelengths since 20189,10,11,34. SN Zwicky16 was discovered under the BTS programme15. The first detection of the SN was in a ZTF g-band image from 2022 August 1. It was saved to the BTS as an SN candidate by on-duty scanners on August 335 and subsequently assigned to the queue for spectroscopic follow-up with SEDM mounted on P60 under standard BTS protocols.
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