2022MNRAS.513.1526K

Query : 2022MNRAS.513.1526K

2022MNRAS.513.1526K - Mon. Not. R. Astron. Soc., 513, 1526-1530 (2022/June-2)

On the lower limit of contact binary star periods.

KOEN C.

Abstract (from CDS):

Data for 405 contact binary systems extracted from a recent compilation are supplemented by information from the literature for an additional ten ultrashort period (P < 0.2 d) binaries. This is used to calibrate period-luminosity-temperature relations for contact binaries. The derived relations are applied to a standard mean temperature-luminosity tabulation to obtain predicted periods for contact systems over the spectral range M9.5-A2. Minimum periods in the range 0.08-0.15 d follow, depending on the precise period-luminosity-temperature model fitted.

Abstract Copyright: © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): binaries: close - stars: low mass

Simbad objects: 11

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Number of rows : 11
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 V* BI Psc dS* 00 12 42.3733287456 +13 08 09.907983960           ~ 16 1
2 ATO J004.1709-00.1570 EB* 00 16 41.0249734584 -00 09 25.255418976           M0V 42 0
3 CRTS J045629.3-130741 EB* 04 56 29.4031394952 -13 07 41.299290048     15.39     ~ 4 0
4 ATO J077.1457-12.0594 V* 05 08 34.9985303182 -12 03 33.451996966           ~ 3 0
5 ATO J087.2525-21.4364 V* 05 49 00.6427553191 -21 26 11.338453933           ~ 3 0
6 ATO J137.7047-28.1734 V* 09 10 49.1862815425 -28 10 24.381165256           ~ 4 0
7 ATO J157.4264-28.5737 PM* 10 29 42.4055374300 -28 34 24.781837780           ~ 3 0
8 CRTS J112237.0+395219 EB* 11 22 37.1205897552 +39 52 19.683355908     17.09     ~ 10 0
9 OGLE BLG647.29 6718 EB* 17 52 09.0009346608 -25 32 01.709100312     21.381   18.716 ~ 8 0
10 UCAC4 681-071399 EB* 19 36 52.02120 +46 10 48.7848       16.17   ~ 25 0
11 CRTS J214633.7+120016 RS* 21 46 33.7548595608 +12 00 16.592657616           ~ 11 0

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