Open Access

Table B.1

Log of the 11 observations of β Pic from which our cometary sample was extracted. Other observations, not listed below, were used to reconstruct the EFS.

Date Instrument Program ID Wavelength (Å) Start time (UT) Exposure time (s) RV ranges showing comet absorption (km/s)a
1997-12-06 STIS 7512 1463 - 1661 07:18 900 [-4;+200]
1628 - 1902 07:48 679
1879 - 2150 07:42 80
2128 - 2396 09:16 288
2377 - 2650 09:02 360
2620 - 2888 08:48 360
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
MJUO 3900 - 4000 09:24 1800

1997-12-19 STIS 7512 1463 - 1661 19:51 900 [-17;+19], [+50;+150]
1628 - 1902 20:22 679
1879 - 2150 20:14 80
2128 - 2396 21:53 288
2377 - 2650 21:40 360
2620 - 2888 21:26 360

2001-08-27 STIS 9154 1628 - 1897 01:15 210 [-17;-3]

2002-05-22 STIS 9154 2327 - 2606 17:09 200 [-8,40]

2017-10-09 STIS 14735 2665 - 2931 23:40 475 [-35;+120]

2018-03-07 STIS 14735 2665 - 2931 02:33 475 [-40;+13]
COS 15479 1163 - 1480 23:15 2012
2018-10-29 – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – [-30;-4], [+8;+140]
STIS 15479 2665 - 2931 21:49 2101

COS 15479 1163 - 1480 05:50 2101
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
2018-12-15 STIS 15479 2665 - 2931 04:22 2101 [-40;+50]
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
HARPS 0102.C-0584 3783 - 6913 05:38 540

1629 - 1897 00:09 1886
STIS 17421 1629 - 1897 01:36 2392
2024-04-17 1629 - 1897 03:11 2392 [-17;+100]
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
HARPS 112.26ZF 3783 - 6913 23:12b 10800

1629 - 1897 11:42 1886
2024-07-31 STIS 17421 1629 - 1897 13:09 2392 [-65;-5], [+3;+100]
1629 - 1897 14:44 2392

STIS 17421 1629 - 1897 11:03 1886 [-55,-15], [+2,+35], [+62,+140]
1629 - 1897 12:17 1886
2024-08-08 1629 - 1897 13:51 2392
1629 - 1897 15:26 2392
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
HARPS 112.26ZF 3783 - 6913 09:51 2400

a The RV ranges apply to all exposures of each visit.

b On April 16, 2024

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