2021MNRAS.505.3165R

Query : 2021MNRAS.505.3165R

2021MNRAS.505.3165R - Mon. Not. R. Astron. Soc., 505, 3165-3176 (2021/August-2)

Constraining the solar neighbourhood age-metallicity relation from white dwarf-main sequence binaries.

REBASSA-MANSERGAS A., MALDONADO J., RADDI R., KNOWLES A.T., TORRES S., HOSKIN M., CUNNINGHAM T., HOLLANDS M., REN J., GANSICKE B.T., TREMBLAY P.-E., CASTRO-RODRIGUEZ N., CAMISASSA M. and KOESTER D.

Abstract (from CDS):

The age-metallicity relation (AMR) is a fundamental tool for constraining the chemical evolution of the Galactic disc. In this work, we analyse the observational properties of this relation using binary stars that have not interacted consisting of a white dwarf (WD) - from which we can derive the total age of the system - and a main sequence (MS) star - from which we can derive the metallicity as traced by the [Fe/H] abundances. Our sample consists of 46 widely separated, but unresolved spectroscopic binaries identified within the Sloan Digital Sky Survey, and 189 WD plus MS common proper motion pairs identified within the second data release of Gaia. This is currently the largest WD sample for which the metallicity of their progenitors have been determined. We find a flat AMR displaying a scatter of [Fe/H] abundances of approximately ±0.5 dex around the solar metallicity at all ages. This independently confirms the lack of correlation between age and metallicity in the solar neighbourhood that is found in previous studies focused on analysing single MS stars and open clusters.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): techniques: spectroscopic - stars: abundances - binaries: spectroscopic - stars: low-mass - white dwarfs - solar neighbourhood

Simbad objects: 52

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Number of rows : 52
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 SDSS J000356.93-050332.7 ** 00 03 56.9319298080 -05 03 32.815305108           dM4.5+DA 5 0
2 GALEX J000559.8-054415 ** 00 05 59.8682204112 -05 44 16.003354272           DA+dM1.5 7 0
3 GALEX J002157.9-110331 ** 00 21 57.9085845240 -11 03 31.611384504           DA+M4 11 0
4 PB 6052 ** 00 36 02.5791078360 +07 00 47.014723332   17       DA+M4 12 0
5 GALEX J005208.3-005134 ** 00 52 08.4284616336 -00 51 34.651603080           DA+dMe 18 0
6 GALEX J005418.5+005746 WD* 00 54 18.54480 +00 57 46.1592           DA+M 14 0
7 GALEX J011123.8+000935 ** 01 11 23.9144080176 +00 09 34.493125068           DA+M 24 0
8 LP 588-25 EB* 01 38 51.4094210303 -00 16 21.889258632     18.14     M6V 34 0
9 PB 9375 WD* 02 56 10.6045206552 -07 30 24.607741680   17       DA+M 22 0
10 PB 6955 ** 02 58 17.9007882144 +01 09 45.875007036   18.29 18.30     DA+dMe 32 0
11 GALEX J032136.5-001630 ** 03 21 36.5507578032 -00 16 30.543251160           DA+M 19 0
12 SDSS J032510.84-011114.2 WD* 03 25 10.8458031144 -01 11 14.249282496           DA 21 0
13 GALEX J032842.9+001749 ** 03 28 42.9297693600 +00 17 49.742927880           DA+dM 18 0
14 GALEX J033132.1-005453 ** 03 31 32.1590554800 -00 54 53.284321476           DA+M 11 0
15 SDSS J033548.59+003832.3 ** 03 35 48.5932191600 +00 38 31.954895088           DA+M 21 0
16 GALEX J064812.7+381005 ** 06 48 12.7683756768 +38 10 05.980953396           DA+M1 4 0
17 GALEX J082429.0+172345 ** 08 24 29.0525840976 +17 23 45.429818928           DA+dMe 9 0
18 UCAC4 428-047059 ** 08 32 55.246608 -04 30 46.67328   17.27 16.81 16.30   DA+M 2 0
19 SDSS J091601.48-003129.8 WD* 09 16 01.4827373568 -00 31 29.840971584           DA+M 17 0
20 SDSS J093311.90+092642.2 WD* 09 33 11.9210707032 +09 26 42.212812704           DA 11 0
21 GALEX J100503.4+211203 ** 10 05 03.3891120072 +21 12 04.004578656           DA+M 10 0
22 SDSS J102334.25+042722.2 ** 10 23 34.2538893432 +04 27 22.149000324           DA+M 13 0
23 GALEX J104057.5+083422 WD* 10 40 57.4820667768 +08 34 21.636104556           DA+M 15 0
24 GALEX J111419.3+083829 ** 11 14 19.2885706632 +08 38 29.046721596           DA+M4 9 0
25 SDSS J111735.11+012940.0 ** 11 17 35.11584 +01 29 40.0272   17.2   17.3   DA+M 11 0
26 GALEX J112012.7+190127 ** 11 20 12.7343327688 +19 01 26.875315596           DA+M3 8 0
27 SDSS J124140.75+600711.5 ** 12 41 40.75896 +60 07 11.5212           DA+M3 7 0
28 GALEX J140535.0+040906 WD* 14 05 34.9318094424 +04 09 06.701080500           DA 13 0
29 Feige 93 XB* 14 17 40.2189155424 +13 01 48.585467568   15.08 15.29     DA1+dM 57 0
30 GALEX J145305.7+001048 ** 14 53 05.7726566856 +00 10 48.266126508           DA+M4 8 0
31 GALEX J151045.6+404826 WD* 15 10 45.7011298776 +40 48 26.786257920           DA 13 0
32 GALEX J152116.0+245016 ** 15 21 16.1033833800 +24 50 16.724170860           DA+M2 7 0
33 SDSS J152517.89+362945.2 LM* 15 25 17.9063064000 +36 29 45.601607508           M4 7 0
34 PG 1525+103 ** 15 27 44.1209658024 +10 07 22.381021056   15.85 16.05     DA+dMe 13 0
35 GALEX J153934.6+092222 ** 15 39 34.6371211128 +09 22 21.433764612           DA+M 10 0
36 GALEX J155720.7+144217 ** 15 57 20.7001634616 +14 42 17.774158824           DA+M 7 0
37 GALEX J155853.1+023138 WD* 15 58 53.2180154208 +02 31 38.347699080           DA+dM 18 0
38 GALEX J160059.8+362609 WD* 16 00 59.8571286528 +36 26 09.822104268           DA+M 15 0
39 GALEX J160136.7+050528 ** 16 01 36.6970282824 +05 05 28.053046716           DA+M1 10 0
40 SDSS J160540.16+461045.7 WD* 16 05 40.1740838808 +46 10 45.814058292           DA+M0 16 0
41 GALEX J162408.0+364858 ** 16 24 08.0649491208 +36 48 58.508133948           DA+dMe 13 0
42 SDSS J162431.66-002248.3 ** 16 24 31.6477152972 -00 22 48.582992768           DA+dMe 14 0
43 PG 1622+324 ** 16 24 48.9996654168 +32 17 02.099567976   16.26 16.32 16.49   DA+dM 28 0
44 GALEX J173104.5+070345 ** 17 31 04.5268471128 +07 03 45.021068100           DA+M4 7 0
45 KUV 18332+6429 ** 18 33 29.1992873040 +64 31 51.955973832   17.0 16.9     DA+M2 18 0
46 SDSS J183453.07+413757.7 ** 18 34 53.05687 +41 37 57.6421           DA+M4 6 0
47 GALEX J204431.4-061439 ** 20 44 31.4409828720 -06 14 40.216396704           DA+M1 15 0
48 SDSS J222822.73+391239.8 ** 22 28 22.7511672528 +39 12 39.957042060           DA+M3 5 0
49 GALEX J231230.7+005322 WD* 23 12 30.7975434048 +00 53 21.709836996           DA+dMe 17 0
50 GALEX J234158.2-094716 WD* 23 41 58.2457838328 -09 47 16.577480256           DA 12 0
51 SDSS J234225.67+155930.4 ** 23 42 25.6472600232 +15 59 29.723926740           DA+M 14 0
52 GALEX J235027.5+004359 ** 23 50 27.5888948064 +00 43 58.788509916           DA+M 8 0

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