DRAFT
2024-05-25 00:48:44
Type: Object/s-Discovery/Classification
Bibcode: 2024TNSAN.137....1P
Hostless candidates detected by ELEPHANT
Abstract:
We report 5 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 the 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 5 recently reported 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 | 2024hph [ZTF24aajjcnd] | 21:03:31.789 | +09:37:28.84 | Supernova candidate. The light curve seems to show a shallow bump. | 21:03:31.789 | +09:37:28.84 | ||||||
| TNS | 2024gtg [ZTF24aajxobf] | 14:40:55.672 | +55:17:50.07 | Supernova candidate. Past peak. | 14:40:55.672 | +55:17:50.07 | ||||||
| TNS | 2024gsi [ZTF24aajxsgx] | 23:48:28.061 | +35:36:13.82 | Supernova candidate. The light curve shows a sharp rise and decline. | 23:48:28.061 | +35:36:13.82 | ||||||
| TNS | 2024hqs [ZTF24aalazse] | 08:34:44.518 | +40:45:18.82 | Supernova candidate. Unfortunately there has not been detections after May 5th 2024, when the light curve was still rising. | 08:34:44.518 | +40:45:18.82 | ||||||
| TNS | 2024hvc [ZTF24aalngme] | 00:43:21.992 | +41:32:45.80 | Supernova candidate. Declining light curve. The observed declination rate is ~1mag over 20days. | 00:43:21.992 | +41:32:45.80 |
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