2017ApJ...841L..10C

Query : 2017ApJ...841L..10C

2017ApJ...841L..10C - Astrophys. J., 841, L10-L10 (2017/May-3)

Binarity as the solution to the stellar evolution enigma posed by NGC 6791.

CARRARO G. and BENVENUTO O.G.

Abstract (from CDS):

Binary evolution is investigated as the source for the extreme horizontal branch (EHB) stars in the old and metal-rich open cluster NGC 6791. Employing an updated version of our binary stellar evolution code, we demonstrate that EHB stars naturally emerge from the common-envelope phase. In sum, the binary model reproduces the observed (Teff, logg) and temporal properties of the EHB overdensity tied to NGC 6971, without needing an ad hoc and anomalous mass-loss prescription.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): binaries: general - open clusters and associations: individual: NGC 6791 - subdwarfs - subdwarfs

Simbad objects: 7

goto Full paper

goto View the references in ADS

Number of rows : 7
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* V516 Lyr CV* 19 20 35.7418540680 +37 44 52.043756748 19.92 21.07       ~ 35 0
2 Cl* NGC 6791 KU B3 HS* 19 20 45.1716372576 +37 49 31.272065724 16.65 16.4 17.809 18.3   sdB 29 0
3 Cl* NGC 6791 KU B6 HS* 19 20 45.3287478168 +37 48 19.262980080 16.77 17.80 18.005     sdB 19 0
4 NGC 6791 OpC 19 20 52.8 +37 46 40   10.52 9.5     ~ 1120 0
5 Cl* NGC 6791 KR V31 El* 19 21 02.4630101016 +37 47 09.060968436 16.80 17.73 17.125 16.565 16.10 ~ 25 1
6 V* V523 Lyr CV* 19 21 07.3950071424 +37 47 56.271903940 17.70         ~ 36 0
7 Cl* NGC 6791 KU B4 HS* 19 21 12.8916906768 +37 45 51.138205956 16.73 17.69 17.873 17.910 18.02 sdB 46 0

To bookmark this query, right click on this link: simbad:objects in 2017ApJ...841L..10C and select 'bookmark this link' or equivalent in the popup menu