ZTF SN Ia DR2
Open Access

Table 3.

Objects with a detected sibling transient.

Primary name IAU name Sibling name IAU name (b) Type Date (a) Offset (″) (c)
ZTF18aasdted SN 2018big ZTF19abqhobb SN 2019nvm IIP 58 714 3.7
ZTF19aaysiwt SN 2019hnt ZTF20acwpads 59 186 1.2
ZTF19acihfxz SN 2019tjz ZTF18aanhpii 59 774 1.2
ZTF20abzetdf SN 2020tft Ia 59 867 < 1
ZTF20acehyxd SN 2020uvd ZTF21abouuow SN 2021udv Ia 59 422 3.1

Notes.

(a)

MJD of the first detection of the sibling.

(b)

The siblings ZTF19aaysiwt and ZTF20acwpads share an IAU name. For ZTF20abzetdf, the siblings are too close together (< 1″ separation) to be automatically recognised as separate events, causing them to share both ZTF and IAU names. ZTF18aanhpii is a sibling transient in 2022 on top of the host nucleus, resulting in the internal name being from 2018.

(c)

Angular separation on the sky between the siblings.

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