AstroNote 2024-238

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DRAFT
2024-09-03 13:37:03
Type: Object/s-Discovery/Classification
ZTF superluminous supernova candidates
Authors: Daniel A. Perley (LJMU), Ragnhild Lunnan (OKC), Lin Yan (Caltech), Jacob Wise (LJMU), Priscila Pessi, Anamaria Gkini, Sean Brennan, Jesper Sollerman (OKC), Steve Schulze (Northwestern),Ting-Wan Chen (NCU)
Source Group: ZTF
Abstract:
We report 6 ZTF superluminous supernova candidates selected by our software filter and subsequent human vetting. In this sample, a typical rise time is longer than 30 days and a typical peak r-band magnitude is 19-20 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, Pessi et al. 2024) reports 6 candidate SLSNe, following the methodology outlined by Perley et al. (in prep.)  We selected transients that have long rise time (>20 days) and/or faint host galaxies.

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.

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 Weizmann Institute for Science, the Oskar Klein Center at Stockholm University, the University of Maryland, Deutsches Elektronen-Synchrotron and Humboldt University, the TANGO Consortium of Taiwan, the University of Wisconsin at Milwaukee, Trinity College Dublin, Lawrence Livermore National Laboratories, and IN2P3, France. 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
TNS2024sed [ZTF24aaybjvl]16:18:24.661+34:42:03.07SDSS J161824.75+344203.745-day rising light curve with potential initial bump. Currently r~19.7 mag and g-r ~ 0. Host has SDSS photo-z of 0.33 ± 0.07.16:18:24.661+34:42:03.07
TNS2024qqy [ZTF24aaxudbj]18:00:27.272+62:20:42.94PS1 18281270114107502245-day light curve, now around peak at r~20.1 mag. Host has LS photo-z of 0.32 ± 0.05.18:00:27.272+62:20:42.94
TNS2024jsj [ZTF24aapfhxo]17:38:22.636+50:15:32.59SDSS J173822.41+501532.8At least 30 days rise time (with a marginal forced photometry detection 20 days earlier); currently declining after a plateau, r~20.1. Offset from host with SDSS photo-z 0.22 ± 0.03.17:38:22.636+50:15:32.59
TNS2024qkt [ZTF24aaxavnf]15:57:36.654+45:28:41.23SDSS J155736.60+452841.040-day rise, currently r~19.0 mag. Host has SDSS photo-z of 0.31 ± 0.07. Also reported as SLSN candidate by NEEDLE in Astronote # 2024-231.15:57:36.654+45:28:41.23
TNS2024qqn [ZTF24aaxnldo]22:16:00.124-23:18:21.1450-day slow/mostly flat light curve, currently r~20.1 and g-r ~ 0. Offset from extended host in PS1, no photo-z available.22:16:00.124-23:18:21.14
TNS2024ukj [ZTF24abbblyh]16:08:04.690+59:32:39.47Slowly rising for 35 days, currently r~20.0 mag. Hostless to LS limits.16:08:04.690+59:32:39.47