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Rates and Propertie...
Rates and Properties of Supernovae Strongly Gravitationally Lensed by Elliptical Galaxies in Time-domain Imaging Surveys
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Goldstein, Daniel A. (författare)
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Nugent, Peter E. (författare)
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- Goobar, Ariel (författare)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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(creator_code:org_t)
- 2019-07-01
- 2019
- Engelska.
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Ingår i: Astrophysical Journal Supplement Series. - : American Astronomical Society. - 0067-0049 .- 1538-4365. ; 243:1
- Relaterad länk:
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https://arxiv.org/ab...
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visa fler...
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https://iopscience.i...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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visa färre...
Abstract
Ämnesord
Stäng
- Supernovae that are strongly gravitationally lensed (gLSNe) by elliptical galaxies are powerful probes of astrophysics and cosmology that will be discovered systematically by wide-field, high-cadence imaging surveys such as the Zwicky Transient Facility (ZTF) and the Large Synoptic Survey Telescope (LSST). Here we use pixel-level simulations that include observing strategy, target selection, supernova properties, and dust to forecast the rates and properties of gLSNe that ZTF and LSST will find. Applying the resolution-insensitive discovery strategy of Goldstein et al., we forecast that ZTF (LSST) can discover 0.02 (0.79) 91bg-like, 0.17 (5.92) 91T-like, 1.22 (47.84) Type Ia, 2.76 (88.51) Type IIP, 0.31 (12.78) Type IIL, and 0.36 (15.43) Type Ib/c gLSNe per year, with uncertainties dominated by uncertainties in the supernova rate. We also forecast that the surveys can discover at least 3.75 (209.32) Type IIn gLSNe per year, for a total of at least 8.60 (380.60) gLSNe per year under fiducial observing strategies. ZTF gLSNe have a median z(s) = 0.9, z(l) = 0.35, vertical bar mu(tot)vertical bar = 30, Delta t(max) = 10 days, min (theta) = 0 ''.25, and N-img = 4. LSST gLSNe are less compact and less magnified, with a median z(s) = 1.0, z(l) = 0.4, vertical bar mu(tot)vertical bar = 6, Delta t(max) = 25 days, min(theta) = 0 ''.6, and N-img = 2. We develop a model of the supernova-host galaxy connection and find that the vast majority of gLSN host galaxies will be multiply imaged, enabling detailed constraints on lens models with sufficiently deep high-resolution imaging taken after the supernova has faded. We release the results of our simulations as catalogs at http://portal.nersc.gov/project/astro250/glsne/.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- gravitational lensing: strong
- supernovae: general
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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