2017ApJ...848...68S


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.18CEST04:30:20

2017ApJ...848...68S - Astrophys. J., 848, 68-68 (2017/October-2)

The RRc stars: chemical abundances and envelope kinematics.

SNEDEN C., PRESTON G.W., CHADID M. and ADAMOW M.

Abstract (from CDS):

We analyzed series of spectra obtained for 12 stable RRc stars observed with the echelle spectrograph of the du Pont telescope at Las Campanas Observatory and we analyzed the spectra of RRc Blazhko stars discussed by Govea et al. We derived model atmosphere parameters, [Fe/H] metallicities, and [X/Fe] abundance ratios for 12 species of 9 elements. We co-added all spectra obtained during the pulsation cycles to increase signal to noise and demonstrate that these spectra give results superior to those obtained by co-addition in small phase intervals. The RRc abundances are in good agreement with those derived for the RRab stars of Chadid et al. We used radial velocity (RV) measurements of metal lines and Hα to construct variations of velocity with phase, and center-of-mass velocities. We used these to construct RV templates for use in low- to medium-resolution RV surveys of RRc stars. Additionally, we calculated primary accelerations, radius variations, and metal and Hα velocity amplitudes, which we display as regressions against primary acceleration. We employ these results to compare the atmosphere structures of metal-poor RRc stars with their RRab counterparts. Finally, we use the RV data for our Blazhko stars and the Blazhko periods of Szczygiel & Fabrycky to falsify the Blazhko oblique rotator hypothesis.

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

Journal keyword(s): methods: observational - stars: abundances - stars: atmospheres - stars: variables: RR Lyrae - techniques: spectroscopic - techniques: spectroscopic

VizieR on-line data: <Available at CDS (J/ApJ/848/68): table1.dat table2.dat table4.dat>

Simbad objects: 51

goto Full paper

goto View the reference in ADS

Number of rows : 51

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* SW And RR* 00 23 43.0897765461 +29 24 03.632673465 9.53 9.34 9.15     A7IIImF0 241 0
2 V* RR Cet RR* 01 32 08.1732047748 +01 20 30.230643983 9.46 9.33 9.15     A9V 196 0
3 V* SV Scl RR* 01 44 59.6627525550 -30 03 33.388125470   11.6 11.6     kA2 56 0
4 V* SS For RR* 02 07 51.9785340895 -26 51 57.718876816   10.45 10.20     kF5hF8 98 0
5 V* CS Eri RR* 02 37 05.7588255738 -42 57 48.034534805   9.25 9.03     A2/3(IIw) 65 0
6 V* AR Per RR* 04 17 17.1973966622 +47 24 00.635143177 10.72 10.37 9.94     A3 155 0
7 V* RX Eri RR* 04 49 44.2915562112 -15 44 28.241786244 9.64 9.43 9.22     F2 164 0
8 V* V701 Pup RR* 08 19 32.8526327627 -23 58 09.836354108   10.70 10.48     ~ 11 0
9 V* BB Pup RR* 08 24 22.6433556297 -19 32 31.406624731           kA5:hF2 72 0
10 ASAS J085254-0300.3 RR* 08 52 54 -03 00.3     12.42     ~ 7 0
11 V* TT Lyn RR* 09 03 07.7866525912 +44 35 08.122607393 9.87 9.75 9.51     A9.2 143 0
12 TYC 4887-622-1 RR* 09 09 00.0932540135 -04 10 24.606253394   11.04 10.79     ~ 7 0
13 V* RU Sex EB* 09 45 40.7497668414 -06 43 59.848534988   11.09 10.78 10.63 10.467 ~ 22 0
14 V* T Sex RR* 09 53 28.4001398465 +02 03 26.346766521 10.22 10.04 9.82     A1V 146 0
15 ASAS J101332-0702.3 RR* 10 13 31.7896165358 -07 02 17.331037020   11.21 10.79     ~ 4 0
16 V* WY Ant RR* 10 16 04.9458687043 -29 43 42.415589871   11.03 10.78     A8.7 114 0
17 TYC 6644-1306-1 RR* 11 05 21.9217445586 -26 41 04.436436921   11.88 11.56     ~ 12 0
18 V* W Crt RR* 11 26 29.6452197223 -17 54 51.698551684   12.07 11.70     F4 108 0
19 V* TU UMa RR* 11 29 48.4896121348 +30 04 02.380342849 9.56 9.41 9.26     F2 208 0
20 V* SS Leo RR* 11 33 54.4935493540 -00 02 00.035385354   10.52       F1 150 0
21 V* SU Dra RR* 11 37 56.6071560912 +67 19 47.060820644 9.52 9.37 9.27     F2-F7 241 0
22 V* UU Vir RR* 12 08 35.0723483286 -00 27 24.303909321 10.13 9.99 9.90     F2 148 1
23 V* SW Dra RR* 12 17 46.6286160546 +69 30 38.234300209   10.87 10.55     A7-F8 143 0
24 V* Y Crv RR* 12 38 10.4461091615 -15 00 00.243630399   11.72 11.64     A0 19 0
25 M 53 GlC 13 12 55.25 +18 10 05.4   8.95 7.79     ~ 742 0
26 BD-19 3673 RR* 13 22 25.2571000754 -20 42 21.416610551   11.05 10.77 10.61 10.358 ~ 6 0
27 V* AU Vir RR* 13 24 48.0043760063 -06 58 45.490879665   11.51 11.12     A0 59 0
28 NGC 5272 338 RR* 13 42 00.6730936291 +28 28 39.820882724   15.908 15.657   15.278 ~ 22 0
29 NGC 5272 353 RR* 13 42 01.7032657637 +28 19 24.680810663   15.973 15.699   15.329 ~ 22 0
30 NGC 5272 455 RR* 13 42 05.6358648935 +28 28 16.702401345   15.896 15.663   15.327 ~ 23 0
31 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2313 0
32 NGC 5272 1422 RR* 13 42 50.3955535512 +28 20 48.962980027   15.914 15.679   15.367 ~ 18 0
33 BD-03 3640 * 14 33 22.0355854178 -04 18 10.975270827   11.00 10.71     ~ 3 0
34 BPS CS 22874-0009 * 14 34 23.1650238622 -26 17 37.593258136   13.92 13.58     ~ 16 0
35 HD 140283 Pe* 15 43 03.0967798658 -10 56 00.595803430 7.508 7.711 7.212 6.63 8.21 F9VkA5mA1 873 0
36 ASAS J162158+0244.5 RR* 16 21 58 +02 44.5     12.47     ~ 9 0
37 V* V445 Oph RR* 16 24 41.2159030246 -06 32 29.926362675   11.59 11.30     F2.5 115 0
38 V* RW Dra RR* 16 35 31.6039215643 +57 50 23.169223443   11.87 11.48     A5 148 0
39 OGLE BLG-ECL-108266 RR* 17 47 38.2072770984 -35 31 07.161960373     17.079   15.734 ~ 29 0
40 V* TW Her RR* 17 54 31.2004377712 +30 24 37.679750698   11.54 11.26     F6 135 1
41 V* MT Tel RR* 19 02 12.2790753281 -46 39 12.080608287   9.14 8.94     A0w 63 0
42 V* V440 Sgr RR* 19 32 20.7826740973 -23 51 12.757032166   10.6 10.6     F0 94 0
43 TYC 8776-1214-1 RR* 20 04 31.3830332018 -53 52 18.195957936   11.34 11.07     ~ 12 0
44 TYC 6341-68-1 RR* 20 31 44.9178722140 -21 58 46.352553612   11.58 11.05     ~ 10 0
45 V* YZ Cap RR* 21 19 32.4130088924 -15 07 01.144071882   11.48 11.09     F5 82 0
46 M 2 GlC 21 33 27.02 -00 49 23.7     6.25     ~ 928 1
47 V* AV Peg RR* 21 52 02.7946161616 +22 34 29.376544849 10.26 10.07 9.87     F0 160 0
48 V* DH Peg RR* 22 15 25.6400732005 +06 49 21.440166281 9.72 9.51 9.25 9.23   A4 175 0
49 BPS CS 22892-0052 Pe* 22 17 01.6558480594 -16 39 27.051900047   14.03 13.20 13.06 12.19 KIIvw 420 0
50 V* BO Gru RR* 23 06 58.6381087385 -43 54 38.468205759     12.66     ~ 17 0
51 V* RV Phe RR* 23 28 31.4504618742 -47 27 13.042493769   12.23 12.16     F6: 88 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2017ApJ...848...68S and select 'bookmark this link' or equivalent in the popup menu


2021.05.18-04:30:20

© Université de Strasbourg/CNRS

    • Contact