1996PASP..108..225C

Query : 1996PASP..108..225C

1996PASP..108..225C - Publ. Astron. Soc. Pac., 108, 225-241 (1996/March-0)

The R Coronae Borealis stars.

CLAYTON G.C.

Abstract (from CDS):

This year marks the bicentennial of the discovery of the variability of R Coronae Borealis. The R Coronae Borealis (RCB) stars are distinguished from other hydrogen-deficient objects by their spectacular dust formation episodes. They may decline by up to 8 magnitudes in a few weeks revealing a rich emission-line spectrum. Their atmospheres have unusual abundances with very little hydrogen and an overabundance of carbon and nitrogen. The RCB stars are thought to be the product of a final helium shell flash or the coalescence of a binary white-dwarf system. Dust may form in non-equilibrium conditions created behind shocks caused by pulsations in the atmospheres of these stars. The RCB stars are interesting and important, first because they represent a rare, or short-lived stage of stellar evolution, and second because these stars regularly produce large amounts of dust so they are laboratories for the study of dust formation and evolution.

Abstract Copyright: ∼

Journal keyword(s): Invited Review Paper

Simbad objects: 52

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Number of rows : 52
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 V* DZ And V* 00 32 36.4226308752 +26 01 21.236555820   11.43 10.36 9.944   K0 13 0
2 V* SY Hyi RC* 02 17 11.7116312304 -79 25 21.267459516           M5/6 10 0
3 V* DY Per RC* 02 35 17.1274583280 +56 08 44.717128260   12.88 11.09 9.93 8.64 C-R4+ 74 0
4 V* XX Cam RC* 04 08 38.7489702792 +53 21 39.350441448 8.35 8.10 7.27     F8I 139 0
5 SV* HV 5637 RC* 05 11 31.3800261672 -67 55 50.814148260     14.69 13.688 13.528 C 33 1
6 V* W Men RC* 05 26 24.5307101256 -71 11 11.796721620     13.40   13.323 F5I:/C 51 0
7 SV* HV 12842 RC* 05 45 02.8825680504 -64 24 22.722012612     13.7     ~ 25 1
8 LHA 120-S 63 Sy* 05 48 43.4314341384 -67 36 10.308807828   16.706 15.51 15.17 14.065 B8III[e] 46 0
9 V* SU Tau RC* 05 49 03.7301227728 +19 04 21.867600252   10.72 9.10     C1,0_Hd_CH0 151 1
10 V* MT Pup EB* 07 54 11.8928757816 -14 39 16.632236160           ~ 10 0
11 V* UX Ant RC* 10 57 09.0588420456 -37 23 55.133370312   12.67 12.37     C-Hd 43 0
12 V* UW Cen RC* 12 43 17.1901954368 -54 31 40.763998596   10.84 10.13     K 115 0
13 V* Y Mus RC* 13 05 48.1948797744 -65 30 46.624502484   11.3 10.50     Fp_Hd 73 0
14 V* V803 Cen CV* 13 23 44.5389056832 -41 44 29.446810404   16.8 14.42     ~ 148 0
15 V* DY Cen RC* 13 25 34.0847063328 -54 14 43.129581792     12.00     C-Hd/B5-6Ie 96 0
16 V* Z Cir Mi* 13 51 02.4450877848 -70 28 22.669448304     11.01     Me 20 0
17 V* V504 Cen RC* 14 12 49.0859715240 -40 21 36.777448116           ~ 16 0
18 V* V854 Cen RC* 14 34 49.4024471640 -39 33 19.201288284   7.13 11.69     Ce 208 0
19 V* AE Cir RC* 14 44 51.3307726176 -69 23 34.601107092     13.00     ~ 25 0
20 V* Z UMi RC* 15 02 01.3633505568 +83 03 48.629861424   12.54 11.40     C 52 0
21 V* S Aps RC* 15 09 24.5365973688 -72 03 45.182766996 11.52 10.86 9.60     C 119 0
22 V* R CrB RC* 15 48 34.4154827352 +28 09 24.295852440 6.44 6.31 5.71 5.26 5.08 G0Iep 779 0
23 V* RT Nor RC* 16 24 18.6679360920 -59 20 38.565480480   11.34 10.60     R 80 0
24 V* RZ Nor RC* 16 32 41.66 -53 15 33.2     10.63     C-Hd 66 0
25 SV* HV 7863 RC* 17 15 19.7319711528 -29 05 37.401105768           R0 35 0
26 V* V1773 Oph RC* 17 17 22.3309508064 -20 22 38.718840072   17.9   16.37 17.03 F2III 8 0
27 V* LR Sco RV* 17 27 53.6271514344 -43 50 46.291360596   11.45 10.37     G0I 34 0
28 V* V731 Sco RC* 17 33 20.7742700688 -32 34 25.702706460   14.366 13.714 13.205   ~ 6 0
29 V* V973 Oph LP? 17 37 23.7637733472 -27 12 41.353922700   13.23 10.89     ~ 7 0
30 HD 318952 RC* 18 04 49.7413378968 -32 43 13.625483844   12.14 10.40     R0 25 0
31 V* V589 Sgr RC* 18 05 17.1819843816 -34 44 46.663755072     14.6     M4IIIe 8 0
32 V* V618 Sgr RC* 18 07 57.2101914960 -36 29 52.302951852           Me 13 0
33 V* GM Ser RC* 18 08 35.8152887040 -15 04 01.880128416           M7 11 0
34 V* WX CrA RC* 18 08 50.4871793760 -37 19 43.210670520   11.75 11.00     R5 64 0
35 V* V739 Sgr RC* 18 13 10.5556628976 -30 16 14.730832560           R 19 0
36 V* V3795 Sgr RC* 18 13 23.5642449000 -25 46 40.857266928       10.940 10.10 ~ 45 0
37 V* VZ Sgr RC* 18 15 08.5724613648 -29 42 29.491053228   11.15 10.46     ~ 53 0
38 V* RS Tel RC* 18 18 51.2223564000 -46 32 53.427456132   10.80 9.96     R0 79 1
39 V* V1860 Sgr RC* 18 21 28.5497563104 -24 45 10.119126744     12.20     G6III 9 0
40 V* GU Sgr RC* 18 24 15.5810208792 -24 15 26.353387944   11.40 11.33     R0 66 0
41 V* V348 Sgr pA* 18 40 19.9290428808 -22 54 29.308207716   12.1       B0/1?I?e 180 0
42 V* MV Sgr RC* 18 44 31.9665722184 -20 57 12.863610864 12.82 13.56 12.00 13.37   B2pec-Hd 105 0
43 V* FH Sct RC* 18 45 14.8470961608 -09 25 36.106185432           C 31 0
44 V* V CrA RC* 18 47 32.3096196393 -38 09 32.307864378       10.765   R0 107 0
45 V* SV Sge RC* 19 08 11.7737560992 +17 37 41.167903944           R2 72 0
46 V* V1157 Sgr RC* 19 10 11.8275220920 -20 29 41.973885096           R 20 0
47 V* RY Sgr RC* 19 16 32.7668605944 -33 31 20.340212592 6.20 6.27 6.25     Cpec 363 0
48 V* V482 Cyg RC* 19 59 42.5731664472 +33 59 27.937220100   12.91 11.36   9.029 C-Hd 68 0
49 V* V1405 Cyg RC* 21 57 30.6115949400 +53 53 45.302967528     13.90     ~ 7 0
50 V* U Aqr RC* 22 03 19.6990459464 -16 37 35.281076700   12.16 11.17     C-Hd 99 0
51 V* UV Cas RC* 23 02 14.6592341400 +59 36 36.693038052   11.89 11.80     F0/5Ib 62 0
52 V* V433 Cas Mi* 23 25 12.0384147960 +61 19 28.896689388   15.00 12.127 11.19   M6 17 1

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