SN 2023gpw: Exploring the diversity and power sources of hydrogen-rich superluminous supernovae

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Volume 705 (January 2026)

A&A, 705 (2026) A52

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Table B.8.

Log of our spectroscopic observations of SN 2023gpw.

MJD	Epoch	Instrument	Slit	Grism/grating	R	Exposure time	Airmass
	(d)					(s)
60071.2	−12.7	P60/SEDM	IFU	-	100	2250	1.3
60073.2	−10.9	P60/SEDM	IFU	-	100	2250	1.4
60075.3	−8.9	P60/SEDM	IFU	-	100	2250	1.7
60079.4	−5.2	P60/SEDM	IFU	-	100	2250	2.2
60081.3	−3.4	P60/SEDM	IFU	-	100	2250	1.9
60084.3	−0.7	P60/SEDM	IFU	-	100	2250	1.3
60098.3	12.3	P60/SEDM	IFU	-	100	1800	2.1
60119.2	31.6	P60/SEDM	IFU	-	100	1800	1.7
60120.2	32.5	P60/SEDM	IFU	-	100	1800	1.9
60121.2	33.4	P60/SEDM	IFU	-	100	1800	1.5

60071.1	−12.8	NOT/ALFOSC	$1 \overset{″}{.} 0$ $1{{\overset{\prime\prime}{.}}}0$	#4	360	600	1.7
60077.0	−7.4	NOT/ALFOSC	$1 \overset{″}{.} 0$ $1{{\overset{\prime\prime}{.}}}0$	#4	360	900	1.3
60084.9	−0.1	NOT/ALFOSC	$1 \overset{″}{.} 0$ $1{{\overset{\prime\prime}{.}}}0$	#4	360	900	1.2

60097.0	11.1	INT/IDS	$1 \overset{″}{.} 5$ $1{{\overset{\prime\prime}{.}}}5$	R300V	980	1800	1.6
60097.9	11.9	INT/IDS	$1 \overset{″}{.} 5$ $1{{\overset{\prime\prime}{.}}}5$	R300V	980	2700	1.2

60116.2	28.8	P200/DBSP	$1 \overset{″}{.} 0$ $1{{\overset{\prime\prime}{.}}}0$	600/4000	1376	300	1.5
60116.2	28.8	P200/DBSP	$1 \overset{″}{.} 0$ $1{{\overset{\prime\prime}{.}}}0$	316/7500	1368	300	1.5
60136.2	47.3	P200/DBSP	$1 \overset{″}{.} 5$ $1{{\overset{\prime\prime}{.}}}5$	600/4000	917	600	1.8
60136.2	47.3	P200/DBSP	$1 \overset{″}{.} 5$ $1{{\overset{\prime\prime}{.}}}5$	316/7500	912	600	1.8

60386.2	278.2	GTC/OSIRIS+	$1 \overset{″}{.} 0$ $1{{\overset{\prime\prime}{.}}}0$	R1000B	610	1800	1.3
60386.2	278.2	GTC/OSIRIS+	$1 \overset{″}{.} 0$ $1{{\overset{\prime\prime}{.}}}0$	R1000R	670	1800	1.3

Notes. The resolving power (R) is reported at the blaze wavelength of each grism/grating. The epochs are reported as rest-frame days since the g-band peak on MJD = 60085.0.

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