DRAFT
2024-10-22 13:34:00
Type: Object/s-Discovery/Classification
Bibcode: 2024TNSAN.304....1D
Hostless candidates detected by ELEPHANT
Authors: R. Durgesh (independent), P. Pessi (OKC), E. E. O. Ishida (CNRS), E. E. Hayes (KIC), L. Nakazono (USP), R. A. P. Oliveira (UW), A. Moitinho (CENTRA), A. Krone-Martins (UC), B. Moews (UE), R. S. de Souza (UH), R. Beck (independent), M. A. Kuhn (UH), K. Nowak (UH), and S. Vaughan (MU), for the COIN collaboration.
Source Group: COIN
Keywords: Time-domain, Transient, Surveys
Abstract:
We report 11 hostless candidates selected by the ELEPHANT pipeline.

Transient astronomical events that exhibit no evident association with a host galaxy are rare phenomena associated with extremely energetic events. They can offer unique insights into the properties and evolution of stars and galaxies. In this context, we developed the ELEPHANT pipeline (Pessi et al. 2024) to process alerts from the Zwicky Transient Facility (ZTF; Bellm et al. 2019; Graham et al. 2019) ingested by the Fink broker (Möller et al. 2021) and automatically find hostless candidates. 

This report includes recent hostless candidates, sumarized below. We encourage classification and follow up of these targets.

     
Show current TNS values
Catalog Name Reported RA Reported DEC Reported Obj-Type Reported Redshift Host Name Host Redshift Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2024wdo [ZTF24abixjxu] 03:15:57.803 +23:29:43.59 SN candidate, past peak, g band declining faster than r band. 03:15:57.803 +23:29:43.59
TNS 2024ulk [ZTF24abdzkva] 21:58:40.550 +24:52:08.42 SN candidate, past peak, light curve shape suggests H depleted SN 21:58:40.550 +24:52:08.42
TNS 2024wqp [ZTF24abjgazf] 08:47:06.230 +55:56:42.28 SN candidate, declining slowly after peak. 08:47:06.230 +55:56:42.28
TNS 2024yfp [ZTF24abmkoqc] 08:15:17.174 +13:59:14.20 SN candidate. Rising for ~ 10 days. 08:15:17.174 +13:59:14.20 SN Ia 0.095
TNS 2024wdl [ZTF24abizbkp] 04:23:36.037 +04:22:42.61 SN candidate. Light curve increased ~1.4 mag in 1 day, reaching peak. Now fading. 04:23:36.037 +04:22:42.61
TNS 2024wdn [ZTF24abitpxy] 08:15:21.319 +58:52:47.41 SN candidate. Broad-ish light curve, past peak. 08:15:21.319 +58:52:47.41
TNS 2024yfk [ZTF24abmhrjk] 02:51:55.479 -04:57:33.45 Young SN candidate. Rise ~0.2mag in 5 days. Still rising. 02:51:55.477 -04:57:33.41 SN Ia 0.09
TNS 2024yrl [ZTF24abltiwy] 03:17:37.314 +24:00:17.48 SN candidate. Rising. Marginal detections suggest an initial decline before the rise. 03:17:37.314 +24:00:17.48
TNS 2024yrm [ZTF24abhbrfg] 01:32:26.149 +48:52:13.85 SN candidate. ~ 20day shallow rise. Now seems to be past peak. 01:32:26.149 +48:52:13.85
TNS 2024yrn [ZTF24abjfcxt] 02:46:02.623 +16:06:54.73 SN candidate. Broad light curve. Past peak. 02:46:02.623 +16:06:54.73
TNS 2024yro [ZTF24abhgcak] 22:56:48.088 -02:13:48.08 SN candidate. Past peak. Light curve seems to be flattening. 22:56:48.088 -02:13:48.08

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