2011A&A...532A..69R


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.11CEST18:58:25

2011A&A...532A..69R - Astronomy and Astrophysics, volume 532A, 69-69 (2011/8-1)

Revised classification of the SBS carbon star candidates including the discovery of a new emission line dwarf carbon star.

ROSSI C., GIGOYAN K.S., AVTANDILYAN M.G. and SCLAVI S.

Abstract (from CDS):

Faint high-latitude carbon stars are rare objects commonly thought to be distant, luminous giants. For this reason, they are often used to probe the structure of the Galactic halo; however, more accurate investigation of photometric and spectroscopic surveys has revealed an increasing percentage of nearby objects with luminosities of main sequence stars. In the General Catalogue of the Second Byurakan Survey (SBS) only ten objects are indicated as carbon star candidates. This work aims at clarifying the nature of these stars. We analyzed new optical spectra and photometry and used astronomical databases available on the web. We verified that two stars are N-type giants already confirmed by other surveys. We found that four candidates are M type stars and confirmed the carbon nature of the remaining four stars; the characteristics of three of them are consistent with an early CH giant type. The fourth candidate, SBS1310+561 identified with a high proper motion star, is a rare type of dwarf carbon showing emission lines in its optical spectrum. We estimated absolute magnitudes and distances to the dwarf carbon and the three CH stars. Our limited sample confirmed the increasing evidence that spectroscopy or colour alone are not conclusive luminosity discriminants for CH-type carbon stars.

Abstract Copyright:

Journal keyword(s): surveys - stars: carbon - stars: individual object : SSBS1310+561

VizieR on-line data: <Available at CDS (J/A+A/532/A69): stars.dat spectra/*>

Simbad objects: 23

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Number of rows : 23

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 HD 5223 Pe* 00 54 13.6094686085 +24 04 01.522268338   9.88 8.47     C-H2IIIb: 111 0
2 V* V Ari Pe* 02 15 00.0771486824 +12 14 23.613348802   10.8 9.80     C-H3.5 101 0
3 G 77-61 Pe* 03 32 38.0871477505 +01 58 00.010460312   15.60 13.90 12.9   dC-J_CH5 124 0
4 V* ES Lyn C* 07 52 04.0091164110 +53 56 53.397988918   13.9 11.1 10.0   N 7 0
5 SBSS 0759+533 Pe* 08 03 12.4185079868 +53 11 34.104266527   14.13 13.08 12.39 11.64 C-H 2 0
6 PG 0824+289 WD* 08 27 05.0513883201 +28 44 02.776899477   14.73 14.27     DA+dC 71 0
7 C* 3287 C* 08 36 27.6520935420 +53 17 51.709950962     11.2     N 8 0
8 V* X UMa Mi* 08 40 49.5076793756 +50 08 11.977829904   12.16 11.53     M4e 38 0
9 BPS BS 16922-0066 LP* 08 57 44.2559375845 +52 47 28.399432203   14.66 12.52 11.66 8.03 M9 5 0
10 2MASS J08585328+0122435 Pe* 08 58 53.2804806407 +01 22 43.451523853           dCe 7 0
11 CLS 29 Pe* 10 40 06.3719060169 +35 48 02.378849926     15.0     Ce-CH 10 0
12 Wolf 358 BY* 10 50 52.0312400722 +06 48 29.263582377 14.532 13.319 11.675 10.459 8.889 M4V 224 0
13 CLS 50 C* 12 20 00.7541407184 +36 48 01.626122897     16.0     C 14 0
14 SBSS 1310+561 Pe* 13 12 42.4968918018 +55 55 54.422991439   16.42 14.44 13.89 13.12 dC 2 0
15 V* RX Boo AB* 14 24 11.6240733185 +25 42 13.381760051   9.23 8.60     M7.5-M8 417 0
16 SBSS 1444+503 * 14 46 36.3476291715 +50 11 27.525888675   18.89 16.95 16.37 14.57 M4V 1 0
17 V* AY Dra Mi* 15 38 39.3303458620 +57 01 33.463492721   10.60       M7: 9 1
18 SBSS 1543+555 Pe* 15 45 22.4044409552 +55 21 32.934832842   16.69 14.71 14.18 13.61 C-H 2 0
19 SBSS 1701+555 C* 17 02 05.5686247807 +55 27 13.543338175   16.43 15.01 14.10 13.41 C-H 1 0
20 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11542 0
21 V* RV Sct C* 18 44 25.1719620626 -13 12 47.663588883   12.46 9.94     C-R4+ 31 0
22 HD 191408 PM* 20 11 11.9384853308 -36 06 04.353559455   5.44 5.32     K2.5V 245 1
23 HD 191408B PM* 20 11 12.2 -36 06 09           M3.5 223 1

    Equat.    Gal    SGal    Ecl

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2020.07.11-18:58:25

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