2004A&A...423..705R

Query : 2004A&A...423..705R

2004A&A...423..705R - Astronomy and Astrophysics, volume 423705-715 (2004/8-4)

The spectroscopic signature of roAp stars.

RYABCHIKOVA T., NESVACIL N., WEISS W.W., KOCHUKHOV O. and STUETZ C.

Abstract (from CDS):

To reliably determine the spectroscopic signature of rapidly oscillating chemically peculiar (roAp) stars it is also necessary to investigate a sample of non pulsating chemically peculiar (noAp) as well as presumably ``normal'' stars. We describe in this study the sample of spectroscopically investigated stars and comment on the techniques used for the analysis. In particular we discuss ionization disequilibria of rare earths in roAp stars that distinguish them from noAp stars. In the light of the recently discovered pulsation of β CrB we see arguments that all magnetic CP2 stars up to a transition temperature of about 8100K may be pulsating.

Abstract Copyright: ∼

Journal keyword(s): stars: abundances - stars: atmospheres - stars: chemically peculiar - stars: oscillations

Simbad objects: 24

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Number of rows : 24
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 HD 12098 a2* 02 00 40.1774521766 +58 31 37.130534305   8.47 8.08 8.758   F0Eu 55 0
2 HD 18610 * 02 54 18.0034583328 -73 27 09.941734692   8.48 8.14     ApEuCrSr 40 0
3 HD 29578 * 04 36 30.7825149216 -54 37 16.161212064   8.82 8.51     ApSrEuCr 42 0
4 HD 32115 SB* 05 00 39.8078829840 -02 03 57.709292544   6.60 6.32     A9V 82 0
5 V* V409 Car a2* 07 30 56.9886639144 -57 59 28.238685684   9.13 8.89     ApSr(Eu) 132 0
6 * 49 Cam a2* 07 46 27.4146675768 +62 49 49.882910592   6.750 6.458     A7VpSrCrEuSiKsn 146 0
7 HD 75445 PM* 08 48 42.9334141680 -39 14 01.940046864   7.40 7.12     ApSrEu(Cr) 65 0
8 V* V816 Cen dS* 11 37 37.0409608152 -46 42 34.877876832 8.99 8.79 8.03     F8/G0p 332 0
9 V* AX CVn a2* 12 39 16.8606994152 +35 57 07.050433068   6.466 6.385     A0pSrCrEuKsn 181 0
10 V* HH Com a2* 13 18 37.2495284424 +26 21 56.748367008   8.08 7.83     A2p 118 0
11 HD 116114 PM* 13 21 46.3079033856 -18 44 31.563482928   7.34 7.02     F0VpSrCrEu 145 0
12 V* PP Vir a2* 14 04 48.9376773456 +05 24 51.459774732   8.70 8.29     F0 86 0
13 HD 133029 a2* 15 00 38.7178984848 +47 16 38.791986348   6.250 6.351     A0VspSiSrCr 222 0
14 * bet CrB a2* 15 27 49.7540595700 +29 06 20.494640434 4.08 3.97 3.68 3.50 3.45 F2VpSrCrEuSi 703 0
15 * 33 Lib a2* 15 29 34.7424021408 -17 26 27.377921220 7.22 7.07 6.69     F0VspEuGdSr 260 0
16 V* V694 CrA a2* 18 12 25.8347418984 -37 45 09.271268532   8.34 7.92     ApSrCrEu 122 0
17 V* V4050 Sgr a2* 18 22 53.0754352224 -36 40 10.400061108   5.20 5.34     B7Ib/II 168 0
18 * 10 Aql a2* 18 58 46.9240671288 +13 54 23.941711692 6.23 6.14 5.89     A7VpSrEu_Ksn 292 0
19 HD 184471 SB* 19 33 20.4267326904 +32 34 37.124341284   9.31 9.00     A8SrCrEu 53 0
20 V* PW Tel a2* 19 33 21.6223874880 -45 16 18.394560768   5.562 5.583     ApCrEuSr 84 0
21 V* V1291 Aql a2* 19 53 18.7357174440 -03 06 52.063556976   5.837 5.619     F0VpSrCrEu 285 0
22 V* BK Gru a2* 22 24 37.6103122272 -39 07 37.475207724   7.00 6.84     ApSrEuCr 66 0
23 V* MM Aqr a2* 22 33 12.3248929848 -20 02 21.880485816   10.058 9.582     A(pEuSrCr) 51 0
24 V* BP Gru a2* 23 01 46.8211202616 -44 50 26.878698672   7.99 7.52     ApSrSi: 137 0

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