Search for trans-iron elements in hot, helium-rich white dwarfs with the HST Cosmic Origins Spectrograph

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Volume 612 (April 2018)

A&A, 612 (2018) A62

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Table 1

Observation log of our three program stars.

Star	Instrument	Dataset	Grating	R	λ/Å	t_exp/s	Date	PI




WD 0111+002	HST/COS	LCK201010	G130M	13000–19000	1070–1210, 1224–1365	8017	2015-11-17	Werner
	HST/GHRS	Z3GM0304T	G160M	18000	1228–1264	4570	1996-11-11	Werner
	FUSE	A0130301000		20000	915–1188	5515	2001-08-07	Dreizler




PG 0109+111	HST/COS	LCK202010	G130M	13000–19000	1070–1210, 1224–1365	8005	2015-12-01	Werner
	FUSE	A0130202000		20000	915–1188	4355	2000-11-23	Dreizler




PG 1707+427	HST/COS	LCK203010	G130M	13000–19000	1070–1210, 1224–1365	14344	2015-09-14	Werner
	HST/GHRS	Z2T20304T	G140L	1800–2200	1165–1460	1197	1995-08-06	Heber
	FUSE	P1320401000		20000	915–1188	14541	2000-06-06	Kruk

Notes. For the HST/COS observations the two wavelength intervals covered by detector segments A and B are given. All FUSE spectra were obtained with the LWRS aperture. Resolving power is R. Exposure time is t_exp.

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