Characterization of Type Ibn Supernovae | Astronomy & Astrophysics (A&A)

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Volume 708 (April 2026)

A&A, 708 (2026) A270

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Table D.7

Minimum and maximum velocity* of the narrow and broad components of He I λ5876 Å line of 59 SNe Ibn.^□

Object	v_narrow	v_broad	References^†
	(km/s)	(km/s)
OGLE-2014^††	$2902_{- 126}^{+ 119}$ $Mathematical equation: $\[2902_{-126}^{+119}\]$$	$5286_{- 280}^{+ 300}$ $Mathematical equation: $\[5286_{-280}^{+300}\]$$	2
2015G	~1300	~5500	1
2015U	$1041_{- 30}^{+ 31}$ $Mathematical equation: $\[1041_{-30}^{+31}\]$$	~3450	1,2
iPTF15akq	$1168_{- 147}^{+ 213}$ $Mathematical equation: $\[1168_{-147}^{+213}\]$$	−	2,3
PS1-15dpn	~3000	−	4,5
iPTF15ul	$1234_{- 162}^{+ 121}$ $Mathematical equation: $\[1234_{-162}^{+121}\]$$	−	2,3
15ed^††	~1200	~7000	1
2018bcc	$1232_{- 56}^{+ 44}$ $Mathematical equation: $\[1232_{-56}^{+44}\]$$	−	2,6
2018jmt	$625_{- 100}^{+ 100}$ $Mathematical equation: $\[625_{-100}^{+100}\]$$	$8551_{- 1052}^{+ 1168}$ $Mathematical equation: $\[8551_{-1052}^{+1168}\]$$	2,7
2019cj	~740	~5600	7
2019deh	$1124_{- 458}^{+ 606}$ $Mathematical equation: $\[1124_{-458}^{+606}\]$$	−	2,8
2019kbj	$426_{- 85}^{+ 68}$ $Mathematical equation: $\[426_{-85}^{+68}\]$$	~8000	2,9
2019lsm	$1799_{- 403}^{+ 407}$ $Mathematical equation: $\[1799_{-403}^{+407}\]$$	−	2
2019uo	$683_{- 88}^{+ 72}$ $Mathematical equation: $\[683_{-88}^{+72}\]$$	$4998_{- 524}^{+ 502}$ $Mathematical equation: $\[4998_{-524}^{+502}\]$$	2,10
2019wep	$915_{- 65}^{+ 59}$ $Mathematical equation: $\[915_{-65}^{+59}\]$$	−	2,11
2020able	$980_{- 149}^{+ 449}$ $Mathematical equation: $\[980_{-149}^{+449}\]$$	$4226_{- 656}^{+ 800}$ $Mathematical equation: $\[4226_{-656}^{+800}\]$$	2
2020bqj	$230_{- 130}^{+ 130}$ $Mathematical equation: $\[230_{-130}^{+130}\]$$	$4119_{- 368}^{+ 400}$ $Mathematical equation: $\[4119_{-368}^{+400}\]$$	2,12
2020nxt	$1062_{- 56}^{+ 56}$ $Mathematical equation: $\[1062_{-56}^{+56}\]$$	$5890_{- 221}^{+ 233}$ $Mathematical equation: $\[5890_{-221}^{+233}\]$$	2,13
2022pda	~1900	$4466_{- 403}^{+ 244}$ $Mathematical equation: $\[4466_{-403}^{+244}\]$$	2,14
2022qhy	$2367_{- 66}^{+ 31}$ $Mathematical equation: $\[2367_{-66}^{+31}\]$$	$5860_{- 506}^{+ 413}$ $Mathematical equation: $\[5860_{-506}^{+413}\]$$	2
2022ablq	$2998_{- 955}^{+ 453}$ $Mathematical equation: $\[2998_{-955}^{+453}\]$$	$5173_{- 691}^{+ 542}$ $Mathematical equation: $\[5173_{-691}^{+542}\]$$	2,15
2023emq	$600_{- 62}^{+ 457}$ $Mathematical equation: $\[600_{-62}^{+457}\]$$	$3600_{- 96}^{+ 99}$ $Mathematical equation: $\[3600_{-96}^{+99}\]$$	2,16

Notes. ^(□)Full table available in electronic form.

^(⋆)If the lower and upper uncertainties are reported with the velocity, these correspond to the 50th–16th and 84th–50th percentiles of its marginalized distribution from the MCMC routine described in Sect. 6, respectively. The velocity corresponds to the 50th percentile (median) of the aforementioned distribution.

^(†) [1] Pastorello et al. (2016),[2] This work,[3] Hosseinzadeh et al. (2017),[4] Smartt et al. (2016),[5] Wang & Li (2020),[6] Karamehmetoglu et al. (2021),[7] Wang et al. (2024b),[8] Pellegrino et al. (2022b),[9] Ben-Ami et al. (2023),[10] Gangopadhyay et al. (2020),[11] Gangopadhyay et al. (2022),[12] Kool et al. (2021), [13] Wang et al. (2024a),[14] Cai in prep,[15] Pellegrino et al. (2024),[16] Pursiainen et al. (2023).

^(††) Abbreviations for OGLE-2012-SN-006 (OGLE-12), ASASSN-14ms (14ms), OGLE-2014-SN-131 (OGLE-14) and ASASSN-15ed (15ed).

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