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21.
iPTF Discoveries of Recent Type Ia Supernovae
Tanja Petrushevska, 2015, other component parts

Abstract: The intermediate Palomar Transient Factory (ATel #4807) reports the discovery and classification of the following Type Ia SNe. Our automated candidate vetting to distinguish a real astrophysical source (1.0) from bogus artifacts (0.0) is powered by three generations of machine learning algorithms: RB2 (Brink et al. 2013MNRAS.435.1047B), RB4 (Rebbapragada et al. 2015AAS...22543402R) and RB5 (Wozniak et al. 2013AAS...22143105W). See ATel #7112 for additional details. The approved classification (and/or subsequent) spectra are made publicly available through WISeREP (Yaron & Gal-Yam 2012).
Found in: ključnih besedah
Summary of found: ... Supernova, Transient...
Keywords: Supernova, Transient
Published: 24.01.2018; Views: 1687; Downloads: 0
.pdf Fulltext (83,71 KB)

22.
iPTF Discoveries of Recent Type Ia Supernovae
R. Ferretti, C. Fremling, L. Hangard, S. Papadogiannakis, T. Petrushevska, other component parts

Abstract: The intermediate Palomar Transient Factory (ATel #4807) reports the discovery and classification of the following Type Ia SNe. Our automated candidate vetting to distinguish a real astrophysical source (1.0) from bogus artifacts (0.0) is powered by three generations of machine learning algorithms: RB2 (Brink et al. 2013MNRAS.435.1047B), RB4 (Rebbapragada et al. 2015AAS...22543402R) and RB5 (Wozniak et al. 2013AAS...22143105W). See ATel #7112 for additional details. The approved classification (and/or subsequent) spectra are made publicly available through WISeREP (Yaron & Gal-Yam 2012).
Found in: ključnih besedah
Summary of found: ... supernova, transient...
Keywords: supernova, transient
Published: 24.01.2018; Views: 1823; Downloads: 0
.pdf Fulltext (87,84 KB)

23.
iPTF Discoveries of Recent Core-Collapse Supernovae
F. Taddia, T. Petrushevska, 2015, other component parts

Abstract: The intermediate Palomar Transient Factory (ATel #4807) reports the discovery and classification of the following Core-Collapse SNe. Our automated candidate vetting to distinguish a real astrophysical source (1.0) from bogus artifacts (0.0) is powered by three generations of machine learning algorithms: RB2 (Brink et al. 2013MNRAS.435.1047B), RB4 (Rebbapragada et al. 2015AAS...22543402R) and RB5 (Wozniak et al. 2013AAS...22143105W). See ATel #7112 for additional details. The approved classification (and/or subsequent) spectra are made publicly available through WISeREP (Yaron & Gal-Yam 2012).
Found in: ključnih besedah
Summary of found: ... supernova, transient...
Keywords: supernova, transient
Published: 24.01.2018; Views: 1711; Downloads: 0
.pdf Fulltext (85,56 KB)

24.
iPTF Discoveries of Recent Type Ia Supernovae
L. Hangard, Tanja Petrushevska, 2015, other component parts

Abstract: The intermediate Palomar Transient Factory (ATel #4807) reports the discovery and classification of the following Type Ia SNe. Our automated candidate vetting to distinguish a real astrophysical source (1.0) from bogus artifacts (0.0) is powered by three generations of machine learning algorithms: RB2 (Brink et al. 2013MNRAS.435.1047B), RB4 (Rebbapragada et al. 2015AAS...22543402R) and RB5 (Wozniak et al. 2013AAS...22143105W). See ATel #7112 for additional details. The approved classification (and/or subsequent) spectra are made publicly available through WISeREP (Yaron & Gal-Yam 2012).
Found in: ključnih besedah
Summary of found: ... supernova, transient...
Keywords: supernova, transient
Published: 24.01.2018; Views: 1684; Downloads: 0
.pdf Fulltext (85,79 KB)

25.
iPTF Discoveries of Recent Type Ia Supernovae
R. Ferretti, Tanja Petrushevska, 2015, other component parts

Abstract: The intermediate Palomar Transient Factory (ATel #4807) reports the discovery and classification of the following Type Ia SNe. Our automated candidate vetting to distinguish a real astrophysical source (1.0) from bogus artifacts (0.0) is powered by three generations of machine learning algorithms: RB2 (Brink et al. 2013MNRAS.435.1047B), RB4 (Rebbapragada et al. 2015AAS...22543402R) and RB5 (Wozniak et al. 2013AAS...22143105W). See ATel #7112 for additional details. The approved classification (and/or subsequent) spectra are made publicly available through WISeREP (Yaron & Gal-Yam 2012).
Found in: ključnih besedah
Summary of found: ... supernova, transient...
Keywords: supernova, transient
Published: 24.01.2018; Views: 1578; Downloads: 0
.pdf Fulltext (85,00 KB)

26.
iPTF Discoveries of Recent Core-Collapse Supernovae
F. Taddia, Tanja Petrushevska, 2015, other component parts

Abstract: The intermediate Palomar Transient Factory (ATel #4807) reports the discovery and classification of the following Core-Collapse SNe. The approved classification (and/or subsequent) spectra are made publicly available through WISeREP (Yaron & Gal-Yam 2012).
Found in: ključnih besedah
Summary of found: ... supernova, transient...
Keywords: supernova, transient
Published: 25.01.2018; Views: 1670; Downloads: 0
.pdf Fulltext (92,39 KB)

27.
iPTF Discoveries of Recent Type Ia Supernovae
S. Papadogiannakis, Tanja Petrushevska, 2015, other component parts

Abstract: The intermediate Palomar Transient Factory (ATel #4807) reports the discovery and classification of the following Type Ia SNe. Our automated candidate vetting to distinguish a real astrophysical source (1.0) from bogus artifacts (0.0) is powered by three generations of machine learning algorithms: RB2 (Brink et al. 2013MNRAS.435.1047B), RB4 (Rebbapragada et al. 2015AAS...22543402R) and RB5 (Wozniak et al. 2013AAS...22143105W). See ATel #7112 for additional details. The approved classification (and/or subsequent) spectra are made publicly available through WISeREP (Yaron & Gal-Yam 2012).
Found in: ključnih besedah
Summary of found: ... supernova, transients...
Keywords: supernova, transients
Published: 25.01.2018; Views: 1707; Downloads: 0
.pdf Fulltext (86,82 KB)

28.
The intermediate Palomar Transient Factory reports the discovery and classification of the following SN Ia
Tanja Petrushevska, 2015, other component parts

Found in: ključnih besedah
Summary of found: ... supernova, transients...
Keywords: supernova, transients
Published: 25.01.2018; Views: 1852; Downloads: 0
.pdf Fulltext (81,62 KB)

29.
High-redshift supernova rates measured with the gravitational telescope A1689
Tanja Petrushevska, 2016, published scientific conference contribution abstract

Abstract: Aims. We present a ground-based, near-infrared search for lensed supernovae behind the massive cluster Abell 1689 at z = 0.18, which is one of the most powerful gravitational telescopes that nature provides. Methods. Our survey was based on multi-epoch J-band observations with the HAWK-I instrument on VLT, with supporting optical data from the Nordic Optical Telescope. Results. Our search resulted in the discovery of five photometrically classified, core-collapse supernovae with high redshifts of 0.671 < z < 1.703 and magnifications in the range ∆m = −0.31 to −1.58 mag, as calculated from lensing models in the literature. Owing to the power of the lensing cluster, the survey had the sensitivity to detect supernovae up to very high redshifts, z ∼ 3, albeit for a limited region of space. We present a study of the core-collapse supernova rates for 0.4 ≤ z < 2.9, and find good agreement with previous estimates and predictions from star formation history. During our survey, we also discovered two Type Ia supernovae in A 1689 cluster members, which allowed us to determine the cluster Ia rate to be 0.14+0.19 ± 0.01 SNuB h2 (SNuB ≡ −0.09 10−12 SNe L−1 yr−1 ), where the error bars indicate 1σ confidence intervals, statistical and systematic, respectively. The cluster rate ⊙,B normalized by the stellar mass is 0.10+0.13 ± 0.02 in SNuM h2 (SNuM ≡ 10−12 SNe M−1 yr−1). Furthermore, we explore the optimal −0.06 ⊙ future survey for improving the core-collapse supernova rate measurements at z 2 using gravitational telescopes, and for detections with multiply lensed images, and we find that the planned WFIRST space mission has excellent prospects. Conclusions. Massive clusters can be used as gravitational telescopes to significantly expand the survey range of supernova searches, with important implications for the study of the high-z transient Universe.
Found in: ključnih besedah
Keywords: supernova, gravitational telescope, galaxy clusters, Abell 1689, strong lensing
Published: 26.01.2018; Views: 2080; Downloads: 0
.pdf Fulltext (9,17 MB)

30.
Survey with gravitational telescope to measure high redshift supernova rates
Tanja Petrushevska, 2016, published scientific conference contribution abstract

Found in: ključnih besedah
Keywords: supernova rates, high-redshift universe, gravitational telescopes, galaxy clusters
Published: 26.01.2018; Views: 2110; Downloads: 0
.pdf Fulltext (12,65 MB)

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