AstroNote 2024-62

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DRAFT
2024-03-06 05:56:16
Type: Object/s-Discovery/Classification
ZTF superluminous supernova candidates
Authors: Steve Schulze (CIERA/Northwestern), Daniel A. Perley, Jacob Wise (LJMU), Ragnhild Lunnan, Anamaria Gkini, Sean Brennan, Priscila Pessi, Jesper Sollerman (OKC), Ting-Wan Chen (NCUIA), Lin Yan (Caltech), Tuomas Kangas (Turku), Avishay Gal-Yam (WIS)
Source Group: ZTF
Abstract:
We report 6 ZTF superluminous supernova candidates selected by our software filter and subsequent vetting. In this sample, a typical rise time is about 50 days and a typical peak r-band magnitude is 18-20 mag. We encourage spectroscopic classifications.

The Zwicky Transient Facility (ZTF; Bellm et al. 2019; Graham et al. 2019) Superluminous Supernova Science Program (Lunnan et al. 2020; Yan et al. 2020; Chen et al. 2023a,b) reports 6 candidate SLSNe, following the methodology outlined by Perley et al. (in prep.)  We selected transients that have a long rise time (>20 days) and a faint host galaxy.

We summarise properties of the candidates in the Related Objects Table. These include coordinates, current magnitudes, approximate rise times, photometric redshifts of potential host galaxies (taken from the SDSS DR14) and special remarks.

We will distribute alerts on such SLSN candidates via AstroNotes periodically; spectroscopic classifications and additional follow-up observations of these transients are encouraged.

This report is based on observations obtained with the Samuel Oschin Telescope 48-inch and the 60-inch Telescope at the Palomar Observatory as part of the Zwicky Transient Facility project. ZTF is supported by the National Science Foundation under Grant No. AST-2034437 and a collaboration including Caltech, IPAC, the Oskar Klein Center at Stockholm University, the University of Maryland, University of California, Berkeley , the University of Wisconsin at Milwaukee, University of Warwick, Ruhr University, Cornell University, Northwestern University and Drexel University. Operations are conducted by COO, IPAC, and UW.

Show current TNS values
CatalogNameReported RAReported DECReported Obj-TypeReported RedshiftHost NameHost RedshiftRemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2024amf [ZTF24aadfmaf]15:34:23.330-00:08:07.98SDSS J153423.31-000807.650-day rise, currently r~17.8 mag. Host with LS photo-z of 0.08 ± 0.04.15:34:23.330-00:08:07.98SLSN-I0.067
TNS2024alt [ZTF24aacfsyl]08:30:42.420+05:28:43.92SDSS J083042.47+052843.720-day rise followed by plateau, now r~19.5 mag. SDSS host photo-z of 0.34 ± 0.11.08:30:42.420+05:28:43.92
TNS2024byt [ZTF24aaejnbx]11:08:34.260-00:30:23.81Sparse light curve but rising for ~35 days, now at r~19.1 mag. No host detected to the depth of PS1 or LS.11:08:34.260-00:30:23.81SLSN-I0.33
TNS2023acko [ZTF23abqgbuh]08:10:25.201-04:09:58.46Slow light curve with 80-day rise, now slowly declining, currently r~19.9 mag. PS1 photo-z of 0.37.08:10:25.201-04:09:58.46
TNS2023aaao [ZTF23absjeul]11:25:22.681+30:57:06.45SDSS J112522.49+305705.440-50 day rise, now slowly declining, currently r~19.6 mag. SDSS host photo-z of 0.204 ± 0.046.11:25:22.681+30:57:06.45
TNS2024ahr [ZTF24aacrbua]14:21:59.270-12:30:22.07Rising for ~50 days, currently r~17.5. Host is blue spiral galaxy detected in PS1 and LS, though no photo-z is available.14:21:59.270-12:30:22.07SLSN-I0.1