RSS spectroscopy of helium-rich subdwarfs.


A collection of blue-optical spectra of stars classified He-sdO, He-sdOB or He-sdB and observed with the Robert Stobie spectrograph (RSS) of the Southern African Large Telescope (SALT).

These spectra are combined from 3 adjacent detectors at two grating positions, each observed twice per telescope visit. The spectra are normalised and merged to form a single spectrum per visit, and then combined with data from multiple visits, if these occurred. The data are then renormalized as part of the specral fitting process to yield the data presented here.

Full details of the observations and data reduction are provided in Jeffery et al. 2021 (submitted): The SALT survey of helium-rich hot subdwarfs, classification and coarse analysis and its supplement. Spectra are labelled using the star name conventions adopted in that paper. Raw and pipeline processed files are available in the SALT Data Archive. We do not have resources to provide more metadata and a more structured database, but we think it is easy enough to find the data you require.

The files are written in "Spectrum format 2"


Zip file containing all 107 spectra

Simbad Reference Spectral type RSS Spectrum Model Fit
BPS22875-0002 sdOC9VII:He40 BPS22875-0002 preview
BPS22892-0051 sdOC7VII:He40 BPS22892-0051 preview
BPS22896-0128 sdOC7VII:He39 BPS22896-0128 preview
BPS22938-0044 sdOC7.5VII:He40 BPS22938-0044 preview
BPS22938-0073 sdO7.5VII:He39 BPS22938-0073 preview
BPS22940-0009 sdBC1V:He38 BPS22940-0009 preview
BPS22946-0005 sdB2.5II:He24 BPS22946-0005 preview
BPS22956-0090 sdO9VII:He40 BPS22956-0090 preview
BPS29520-0048 sdOC9VII:He39 BPS29520-0048 preview
BPS30319-0062 sdB0.5VII:He20 BPS30319-0062 preview
EC00468-5440 sdBC0VII:He25 EC00468-5440 preview
EC02523-6934 sdO9VII:He39 EC02523-6934 preview
EC03505-6929 sdO9VII:He40 EC03505-6929 preview
EC04013-4017 sdBC1VII:He32 EC04013-4017 preview
EC04110-1348 sdOC7.5VII:He39 EC04110-1348 preview
EC04271-2909 sdO8.5VI:He39 EC04271-2909 preview
EC04281-4738 sdOC6.5VII:He39 EC04281-4738 preview
EC04405-3211 sdO7.5VII:He39 EC04405-3211 preview
EC04517-3706 sdB0.5VI:He40 EC04517-3706 preview
EC05242-2900 sdO8VII:He28 EC05242-2900 preview
EC05593-5901 sdB0.5VII:He39 EC05593-5901 preview
EC09557-1551 sdO7VII:He40 EC09557-1551 preview
EC10475-2703 sdOC3VI:He39 EC10475-2703 preview
EC10479-2714 sdO8.5VII:He40 EC10479-2714 preview
EC11236-1945 sdOC2VII:He40 EC11236-1945 preview
EC12349-2824 sdO8VII:He40 EC12349-2824 preview
EC12420-2732 sdOC4VII:He40 EC12420-2732 preview
EC13290-1933 sdOC9.5VII:He39 EC13290-1933 preview
EC15348-1652 sdO8VII:He39 EC15348-1652 preview
EC19529-4430 sdB3IV:He35 EC19529-4430 preview
EC20111-3724 sdO9VII:He33 EC20111-3724 preview
EC20111-6902 sdBC1.5VII:He38 EC20111-6902 preview
EC20184-3435 sdO9.5VI:He28 EC20184-3435 preview
EC20187-4939 sdB0.2VII:He36 EC20187-4939 preview
EC20221-6249 sdOC9.5VII:He39 EC20221-6249 preview
EC20236-5703 sdBC2.5IV:He35 EC20236-5703 preview
EC20306-5127 sdOC6.5VII:He39 EC20306-5127 preview
EC20450-1501 sdOC8VII:He38 EC20450-1501 preview
EC20450-6947 sdO7VII:He40 EC20450-6947 preview
EC20481-5518 sdO7.5VII:He39 EC20481-5518 preview
EC21077-4815 sdOC7.5VII:He39 EC21077-4815 preview
EC21125-7013 sdOC6.5VII:He40 EC21125-7013 preview
EC21306-4911 sdBC1VII:He40 EC21306-4911 preview
EC21416-3645 sdO8.5VII:He34 EC21416-3645 preview
EC22332-6837 sdO7.5VII:He37 EC22332-6837 preview
EC22536-5304 sdB0.2VII:He23 EC22536-5304 preview
Feige19 sdO9VII:He37 Feige19 preview
GLXJ04111-0048 sdO8VII:He40 GLXJ04111-0048 preview
GLXJ04205+0120 sdOC8.5VII:He39 GLXJ04205+0120 preview
GLXJ05138-1944 sdO7.5VII:He39 GLXJ05138-1944 preview
GLXJ05580-2927 sdOC7VII:He39 GLXJ05580-2927 preview
GLXJ06126-2712 sdB0.2VI:He40 GLXJ06126-2712 preview
GLXJ07076-6222 sdOC6.5VII:He40 GLXJ07076-6222 preview
GLXJ07158-5407 sdO3VII:He40 GLXJ07158-5407 preview
GLXJ07581-0432 sdO9.5VII:He33 GLXJ07581-0432 preview
GLXJ08454-1214 sdOC9.5VI:He39 GLXJ08454-1214 preview
GLXJ14258-0432 sdON7VI:He39 GLXJ14258-0432 preview
GLXJ15235-1817 sdOC9VII:He39 GLXJ15235-1817 preview
GLXJ16546+0318 sdOC3VII:He40 GLXJ16546+0318 preview
GLXJ17051-7156 sdOC6VII:He40 GLXJ17051-7156 preview
GLXJ18325-4744 sdOC9VII:He38 GLXJ18325-4744 preview
GLXJ18372-3125 sdOC8VII:He38 GLXJ18372-3125 preview
GLXJ18387-5409 sdB0VII:He39 GLXJ18387-5409 preview
GLXJ18459-4138 sdBN2V:He38 GLXJ18459-4138 preview
GLXJ19108-4417 sdBC0.2VI:He39 GLXJ19108-4417 preview
GLXJ19111-1406 sdOC6.5VII:He39 GLXJ19111-1406 preview
GLXJ19150-4235 sdO8.5VII:He40 GLXJ19150-4235 preview
GLXJ19333-2345 sdBC0.5VI:He38 GLXJ19333-2345 preview
GLXJ19376-4303 sdB2.5V:He21 GLXJ19376-4303 preview
GLXJ20133-1201 sdOC2VII:He37 GLXJ20133-1201 preview
GLXJ20204-1901 sdBN0VI:He35 GLXJ20204-1901 preview
GLXJ20251-0804 sdOC2VII:He39 GLXJ20251-0804 preview
HE0414-5429 sdO8VII:He39 HE0414-5429 preview
HE2347-4130 sdO8VII:He39 HE2347-4130 preview
LB1630 sdOC5VI:He38 LB1630 preview
LB1721 sdOC9VII:He38 LB1721 preview
LB1741 sdO9VII:He39 LB1741 preview
LB3229 sdO9.5VII:He39 LB3229 preview
LB3289 sdBN0.2VII:He29 LB3289 preview
LSIV-14116 sdB1VII:He18 LSIV-14116 preview
LSS1274 sdO8VI:He39 LSS1274 preview
PB5462 sdOC5VII:He40 PB5462 preview
PB7124 sdOC9VII:He40 PB7124 preview
PG0240+046 sdBC0.5VII:He25 PG0240+046 preview
PG0902+057 sdB0VII:He39 PG0902+057 preview
PG0958-119 sdO8VII:He39 PG0958-119 preview
PG1127+019 sdOC9.5VII:He39 PG1127+019 preview
PG1220-056 sdO4VII:He39 PG1220-056 preview
PG1230+067 sdON9.5VII:He39 PG1230+067 preview
PG1318+062 sdOC9VII:He39 PG1318+062 preview
PG1455-069 sdOC8.5VII:He40 PG1455-069 preview
PG1528+029 sdO8VII:He40 PG1528+029 preview
PG1537-046 sdOC2VII:He40 PG1537-046 preview
PG1625-034 sdO8VII:He39 PG1625-034 preview
PG2158+082 sdO2VII:He40 PG2158+082 preview
PG2218+051 sdB0.5VII:He20 PG2218+051 preview
PHL149 sdO7.5VII:He40 PHL149 preview
PHL178 sdO7.5VII:He40 PHL178 preview
PHL540 sdO7.5VII:He40 PHL540 preview
SB705 sdOC7.5VII:He40 SB705 preview
TonS103 sdBN0.2VII:He40 TonS103 preview
TonS14 sdOC9VII:He40 TonS14 preview
TonS144 sdO9.5VII:He37 TonS144 preview
TonS148 sdBC0.2VI:He37 TonS148 preview
TonS415 sdO8VII:He30 TonS415 preview
UVO0904-02 sdO7.5VI:He39 UVO0904-02 preview

Simon Jeffery (simon.jeffery@armagh.ac.uk)
Last modified: 16/09/21