2005AJ....130.2293Z


C.D.S. - SIMBAD4 rel 1.7 - 2021.06.22CEST09:40:00

2005AJ....130.2293Z - Astron. J., 130, 2293-2302 (2005/November-0)

Discovery of five new R Coronae Borealis stars in the MACHO Galactic Bulge database.

ZANIEWSKI A., CLAYTON G.C., WELCH D.L., GORDON K.D., MINNITI D. and COOK K.H.

Abstract (from CDS):

We have identified five new R Coronae Borealis (RCB) stars in the Galactic bulge using the MACHO Project photometry database, raising the total number of known Galactic RCB stars to about 40. We have obtained spectra to confirm the identifications. The fact that four out of the five newly identified RCB stars are ``cool'' (Teff<6000 K) rather than ``warm'' (Teff>6000 K) suggests that the preponderance of warm RCB stars among the existing sample is a selection bias. These cool RCB stars are redder and fainter than their warm counterparts and may have been missed in surveys done with blue plates. Based on the number of new RCB stars discovered in the MACHO bulge fields, there may be ∼250 RCB stars in the reddened ``exclusion'' zone toward the bulge.

Abstract Copyright:

Journal keyword(s): Galaxy: Bulge - Stars: Evolution - Stars: Variables: Other

Simbad objects: 38

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Number of rows : 38

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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9842 1
2 SV* HV 5637 RC* 05 11 31.3801293503 -67 55 50.814263804     14.69 13.688 13.528 C 32 1
3 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15433 1
4 V* W Men RC* 05 26 24.5311698897 -71 11 11.797841247     13.40   13.323 F5I:/C 49 0
5 V* V854 Cen RC* 14 34 49.4088471574 -39 33 19.276531885   7.13 11.69     Ce 202 0
6 V* Z UMi C* 15 02 01.3659595384 +83 03 48.630572989   12.54 11.40     C 49 0
7 V* S Aps RC* 15 09 24.5362175909 -72 03 45.183589120 11.52 10.86 9.60     C 112 0
8 V* V2552 Oph RC* 17 23 14.5547946109 -22 52 06.318141177   11.90 10.92     C-Hd 24 0
9 NAME Galactic Center gam 17 45 39.60213 -29 00 22.0000           ~ 12263 0
10 V* V4334 Sgr CV* 17 52 32.69 -17 41 08.0   12.01       F2Ia 340 0
11 MACHO 401.48170.2237 Lev 17 57 59.02 -28 18 13.1           ~ 6 0
12 MACHO 118.18666.100 RC* 17 59 52.23 -29 39 50.5           ~ 4 0
13 V* V739 Sgr C* 18 13 10.5557837454 -30 16 14.732012871           R 16 0
14 MACHO 123.24377.5 * 18 13 13.11 -30 15 50.4           ~ 1 1
15 V* V3795 Sgr RC* 18 13 23.564 -25 46 40.89       10.94 10.10 ~ 40 0
16 MACHO 161.24445.2938 * 18 13 24.23 -25 46 43.3           ~ 1 1
17 V* VZ Sgr RC* 18 15 08.5724567921 -29 42 29.495498613   11.15 10.46     ~ 48 0
18 MACHO 117.25166.4791 Lev 18 15 09.13 -29 42 28.8           ~ 1 1
19 MACHO 308.38099.66 RC* 18 19 27.4230477521 -21 24 08.204163505           ~ 7 0
20 MACHO 135.27132.51 RC* 18 19 33.7567911589 -28 35 58.073280647           ~ 11 0
21 MACHO 301.45783.9 RC* 18 32 18.60 -13 10 49.6           ~ 7 0
22 PN A66 58 PN 19 18 20.476 +01 46 59.62           [WC4] 293 0
23 V* ES Aql RC* 19 32 21.6146661742 -00 11 30.960387677     11.76     C 31 0
24 Hen 1-5 pA* 20 11 56.064360 +20 20 04.17624 11.41 10.66 9.45     G8/K0Iae 495 0
25 MACHO 159.25614.43 * ~ ~           ~ 1 0
26 MACHO 148.26072.30 * ~ ~           ~ 1 0
27 NAME Galactic Bulge reg ~ ~           ~ 3610 0
28 MACHO 104.20385.189 * ~ ~           ~ 1 0
29 MACHO 102.23507.2965 * ~ ~           ~ 1 0
30 MACHO 303.44915.18 * ~ ~           ~ 1 0
31 MACHO 102.26243.24 * ~ ~           ~ 1 0
32 MACHO 104.20900.3659 * ~ ~           ~ 1 0
33 MACHO 305.36243.133 * ~ ~           ~ 1 0
34 MACHO 304.36408.33 * ~ ~           ~ 1 0
35 MACHO 311.37557.169 CV* ~ ~           ~ 2 0
36 MACHO 149.27752.4439 CV* ~ ~           ~ 1 0
37 MACHO 154.29038.66 CV* ~ ~           ~ 1 0
38 MACHO 122.22949.21 * ~ ~           ~ 1 0

    Equat.    Gal    SGal    Ecl

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2021.06.22-09:40:00

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