Open Access

Table D.1

The 29 comets studied in the present paper.

Label Date (orbita) Nomenclatureb Total RV rangec (km/s) Fitted RV ranged (km/s) Studied linese
1f 1997-12-06 C19971206 a [+10,+50] [+21,+42] Fe II λ2250, λ2400, λ2600, λ2750 Å
Ni II λ1750, λ2200, λ2400 Å
Cr II λ2000, λ2700 Å
Si II λ1800 Å
Co II λ2300 Å
Mn II λ2600 Å
S I λ1800 Å
Al III λ1850 Å
Zn II λ2000 Å
Ca II λ3900 Å

2 1997-12-06 C19971206 b [+60,+200] [+70,+150] Fe II λ2400, λ2600, λ2750 Å
Mg II λ2800 Å
Ca II λ3900 Å

3 1997-12-19 C19971219 a [-45,-31] [-43,-33] Fe II λ2400, λ2600, λ2750 Å
Ni II λ1700, λ2200, Ni II λ2400 Å

4 1997-12-19 C19971219 b [-17,-6] [-16,-7] Fe II λ2250, λ2400, λ2600, λ2750 Å
Ni II λ1700, λ2200, λ2400 Å
Mn II λ2600 Å
Al III λ1850 Å

5g 1997-12-19 C19971219 c [0,+19] [+3,+15] Fe II λ1600, λ1700, λ2750 Å
Mn II λ2600 Å
Ni II λ1700Å
Cr II λ2700 Å
Si II λ1800 Å
S I λ1800 Å
Al III λ1850 Å

6 1997-12-19 C19971219 d [+50,+150] [+60,+120] Fe II λ2400, λ2600, λ2750 Å
Al III λ1850 Å
Mg II λ2800 Å

7 2001-08-27 C20010827 a [-15,0] [-13,-6] Fe II λ1700, λ2600, Å
λ2750 Å
Al III λ1850 Å
Mg II λ2800 Å

8 2002-05-22 C20020522 a [+18,+31] [+21,+29] Fe II λ2400, λ2600 Å
Ni II λ2400 Å
Mn II λ2600 Å

9 2017-10-09 C20171009 a [+2,+15] [+4,+12] Fe II λ2750Å
Cr II λ2700 Å

10 2017-03-07 C20170307 a [-20,-6] [-35,0] Fe II λ2750Å
Cr II λ2700 Å

11 2018-10-29 C20181029 a [-22,-5] [-22,-5] Fe II λ2750Å
S II λ1250Å
Cr II λ2700Å

12 2018-10-29 C20181029 b [+11,+28] [+11,+28] Fe II λ2750Å
S II λ1250Å
Cr II λ2700Å

13 2018-10-29 C20181029 c [+30,+50] [+30,+50] Fe II λ2750Å
S II λ1250Å
Cr II λ2700Å

14h 2018-10-29 C20181029 d [+50,+150] [+60,+90] Fe II λ2750Å
S II λ1250Å
Cr II λ2700Å

15 2018-12-15 C20181215 a [-50,-20] [-50,-30] Fe II λ2750Å
Mg II λ2800Å
Ca II λ3900Å

16 2018-12-15 C20181215 b [-11,-3] [-12,-6] Fe II λ2750Å
Ca II λ3900Å

17i 2018-12-15 C20181215 c [-2,+5] [-2,+5] Fe II λ2750Å
Cr II λ2700Å

18 2018-12-15 C20181215 d [+12,+32] [+13,+28] Fe II λ2750Å
S II λ1250Å
Cr II λ2700Å
Ca II λ3900Å

19 2018-12-15 C20181215 e [+32,+55] [+32,+46] Fe II λ2750Å
Mg II λ2800Å
Ca II λ3900Å

20 2024-04-17 (1-3) C20240417 a [-14,-5] [-12,-6] Fe II λ1700Å
Ni II λ1700Å
Si II λ1800Å
S I λ1800Å
Al III λ1850Å
Ca II λ3900Å

21f 2024-04-17 (1-3) C20240417 b [+2,+11] [+2,+11] Fe II λ1700Å
Ni II λ1700Å
Si II λ1800Å
S I λ1800Å
Al III λ1850Å

22 2024-04-17 (2) C20240417 c [+24,+58] [+25,+55] Fe II λ1700Å
Ni II λ1700Å
Si II λ1800Å
Al III λ1850Å
Ca II λ3900Å

23 2024-04-17 (1) C20240417 d [+60,+104] [+60,+95] Fe II λ1700Å
Al III λ1850Å
Ca II λ3900Å

24j 2024-07-31 (1-3) C20240731 a [-60,-10] [-40,-15] Fe II λ1700Å
Ni II λ1700Å
Si II λ1800Å

25j 2024-07-31 (2) C20240731 b [+40,+75] [+45,+70] Fe II λ1700Å
Ni II λ1700Å
Si II λ1800Å

26j 2024-07-31 (3) C20240731 c [+70,+105] [+78,+102] Fe II λ1700Å
Ni II λ1700Å

27 2024-08-08 (1-3) C20240808 a [-50,-10] [-40,-15] Fe II λ1700Å
Ni II λ1700Å
Si II λ1800Å
Al III λ1850Å
Ca II λ3900Å

28 2024-08-08 (1-3) C20240808 b [+60,+85] [+67,+83] Fe II λ1700Å
Ni II λ1700Å
Si II λ1800Å
Al III λ1850Å
Ca II λ3900Å

29 2024-08-08 (1-3) C20240808 c [+85,+105] [+85,+100] Fe II λ1700Å
Ni II λ1700Å
Si II λ1800Å
Al III λ1850Å
Ca II λ3900Å

a Specific HST orbits used to analyse comets 20-29 (see Sect. 4.3.

b The full nomenclature should also contain the stellar name, e.g. “β Pic C19971206 a” for comet 1, as proposed by Lecavelier des Etangs et al. (in prep).

c RV range where each comet is detected.

d RV range used to measure the comets absorption depths.

e Fitted line series for each comet.

f Comet 1 was already studied in Vrignaud et al. (2024a).

g For comet 5, the Mn II/Fe II ratio was estimated from the λ2600 Å Mn II and λ2400-2600 Å Fe II line series, using the 2002-05-22 spectrum as a reference.

h Comet 14 was also studied in Vrignaud et al. (2024a).

i For comets 17 and 22, the much poorer EFS determination of Fe II lines compared to Ca II makes the retrieval of the Ca II/Fe II ratio hazardous.

j For comets 24 to 26, the Al III doublet was removed from the analysis, due to many overlapping absorption features.

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