2006AJ....132.1714P


Query : 2006AJ....132.1714P

2006AJ....132.1714P - Astron. J., 132, 1714-1724 (2006/October-0)

TY Gruis: a metal-poor carbon and neutron-capture-rich RR Lyrae star.

PRESTON G.W., THOMPSON I.B., SNEDEN C., STACHOWSKI G. and SHECTMAN S.A.

Abstract (from CDS):

We have conducted a photometric and high-resolution spectroscopic analysis of the high-latitude (l=1°, b=-55°) metal-poor RR Lyrae star TY Gru (=CS 22881-071). We find this star to have large overabundances of carbon and neutron-capture elements. Mass transfer from an asymptotic giant branch binary companion prior to its RR Lyrae evolutionary state is the simplest explanation of this circumstance. Unfortunately, TY Gru is afflicted by the Blazhko effect, which greatly complicates accurate measurement of the motion of its center of mass. We have not yet detected the small orbital motion that would be produced by a distant degenerate companion of TY Gru.

Abstract Copyright:

Journal keyword(s): Stars: Abundances - Stars: Horizontal-Branch - stars: individual (TY Gruis) - Stars: Population II - Stars: Variables: Other

VizieR on-line data: <Available at CDS (J/AJ/132/1714): table1.dat table2.dat table4.dat>

Simbad objects: 14

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Number of rows : 14
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 BPS CS 31062-0050 Pe* 00 30 31.0646803224 -12 05 10.877225064   13.7 13.05 12.681 12.309 CEMP-r/s 64 0
2 CD-24 266 BS* 00 40 47.9313619824 -24 07 34.183333668   12.955 12.656 12.441 12.216 CEMP-s 93 0
3 V* X Ari RR* 03 08 30.8846437148 +10 26 45.218712967 9.45 9.25 8.97     F0.5 278 0
4 HE 0411-3558 Pe* 04 13 09.0581958168 -35 50 38.815893420   13.33 12.96   12.352 CEMP-mp 23 0
5 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 16157 1
6 V* RR Gem RR* 07 21 33.5312487888 +30 52 59.459320164   12.34 11.92     kA2hA7.5 207 0
7 BPS CS 22874-0009 * 14 34 23.1652039128 -26 17 37.594213908   13.92 13.58     ~ 16 0
8 SA 110- reg 18 45 +00.6           ~ 96 0
9 V* RR Lyr RR* 19 25 27.9129605304 +42 47 03.693258204   7.36   7.6   kA3hF0 895 0
10 V* XZ Cyg RR* 19 32 29.3050827744 +56 23 17.494181700   9.94 9.68     kA1.5hA8 255 0
11 * eta Aql cC* 19 52 28.3689223781 +01 00 20.371980515 5.12 4.61 3.80   3.030 F6Iab+B9.8V 654 0
12 V* TY Gru RR* 22 16 39.4204602572 -39 56 17.947129636   14.64 14.10     ~ 35 0
13 BPS CS 22886-0043 HB* 22 22 33.7871919696 -10 14 08.990223360   15.18 14.72   13.991 ~ 11 0
14 NAME Galactic Bulge reg ~ ~           ~ 3898 0

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2022.08.12-08:38:29

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