DRAFT
2024-10-22 13:34:00
Type: Object/s-Discovery/Classification
Bibcode: 2024TNSAN.304....1D
Hostless candidates detected by ELEPHANT
Source Group: COIN
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.
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 |