2019MNRAS.489.1481J

Query : 2019MNRAS.489.1481J

2019MNRAS.489.1481J - Mon. Not. R. Astron. Soc., 489, 1481-1488 (2019/October-2)

EC 22536-5304: SALT identifies a new lead-rich intermediate helium subdwarf.

JEFFERY C.S. and MISZALSKI B.

Abstract (from CDS):

SALT spectra of the helium-rich hot subdwarf EC 22536-5304 show strong absorption lines of triply ionized lead. Analysis of the HRS spectrum and a follow-up SALT/RSS spectrum show EC 22536-5304 to have surface properties (temperature, gravity, helium/hydrogen ratio) similar to other heavy-metal subdwarfs. With a lead overabundance of 4.8 dex relative to solar, EC 22536-5304 is the most lead-rich intermediate helium subdwarf discovered so far.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: abundances - stars: chemically peculiar - stars: fundamental parameters - stars: individual: (EC 22536-5304) - subdwarfs

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 12

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Number of rows : 12
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 Ton S 133 HS* 00 01 38.4853059312 -28 27 43.030914948   16.068 16.127     sdO7He2 24 0
2 [CW83] 0512-08 HS* 05 14 43.9316872560 -08 48 06.372157464   10.97 11.34     sdO 33 0
3 [CW83] 0825+15 HS* 08 28 32.8677329136 +14 52 02.481937284   11.57 11.82 12.01   sdBHe 41 0
4 PG 0909+276 HS* 09 12 51.6607835328 +27 20 31.396804260   11.92 12.10 12.62   sdB0.5VIIHe19 48 1
5 Ton 414 HS* 09 24 40.0702074072 +30 50 12.594990696   14.6 14.73     sdBN0VIIHe35 31 0
6 HE 1256-2738 HS* 12 59 01.3945837008 -27 54 18.765895284   16.9 16.46 16.2   sdOHe 22 0
7 PG 1559+048 HS* 16 01 31.2726190776 +04 40 27.067404396   14.27 14.46     sdBC0.2VIIHe22 27 0
8 FBS 1749+373 HS* 17 51 37.3293877944 +37 19 51.122902440     14.64     sdOB 20 0
9 GALEX J175548.5+501210 HS* 17 55 48.5702090112 +50 12 11.593937844   12.59 13.00     sdOHe 15 0
10 LS IV -14 116 HS* 20 57 38.8746228912 -14 25 43.991016852 11.63 12.73 13.02 13.28   sdB0.5VIIHe18 89 0
11 BPS CS 22956-0094 HS* 22 16 56.0068153032 -64 31 50.157732684 12.27 13.34 13.38 13.50   sdB 18 0
12 EC 22536-5304 HS* 22 56 35.9241984096 -52 48 36.064006812   13.290 13.323 13.564   sdB0.2VIIHe23 18 0

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