2004A&A...424..245T

Query : 2004A&A...424..245T

2004A&A...424..245T - Astronomy and Astrophysics, volume 424245-252 (2004/9-2)

EROS 2 photometry of probable R Coronae Borealis stars in the Small Magellanic Cloud.

TISSERAND P., MARQUETTE J.B., BEAULIEU J.P., DE LAVERNY P., LESQUOY E., MILSZTAJN A., AFONSO C., ALBERT J.N., ANDERSEN J., ANSARI R., AUBOURG E., BAREYRE P., BAUER F., BLANC G., CHARLOT X., COUTURES C., DERUE F., FERLET R., FOUQUE P., GLICENSTEIN J.F., GOLDMAN B., GOULD A., GRAFF D., GROS M., HAISSINSKI J., HAMADACHE C., DE KAT J., LASSERRE T., LE GUILLOU L., LOUP C., MAGNEVILLE C., MANSOUX B., MAURICE E., MAURY A., MONIEZ M., PALANQUE-DELABROUILLE N., PERDEREAU O., PREVOT L., RAHAL Y., REGNAULT N., RICH J., SPIRO M., VIDAL-MADJAR A., VIGROUX L. and ZYLBERAJCH S.

Abstract (from CDS):

EROS 2 (Experience de Recherche d'Objets Sombres) conducted a survey of the SMC between July 1996 and February 2003 in two EROS broad-band colours, VE and RE. The photometric data of 4.2 million stars have been searched for behaviour typical of R Coronae Borealis (RCB) candidates such as drastic changes in magnitude. Five objects have been found, four of them being catalogued in the Simbad database as RAW 21, RAW 233, RAW 476, and [MH95] 431 with confirmed carbon-rich atmospheres, characteristic of RCB. From the EROS 2 light curve of RAW 21 and its spectrum reported by Morgan et al. (2003MNRAS.344..325M), we confirm that it is the first RCB to be found in the SMC. The other objects are new RCB candidates with absolute luminosity and colour close to those found for RCBs in the LMC. We propose that 2 of them are DY Per-like RCBs.

Abstract Copyright: ∼

Journal keyword(s): stars: carbon - galaxies: Magellanic Clouds

CDS comments: Paragraph 5. star sm0067m28134b is MACHO 207.16426.1662 in Simbad.

Simbad objects: 7

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Number of rows : 7
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 RAW 21 RC* 00 37 47.0976654168 -73 39 02.403102492     17.69     C 11 0
2 [MH95] 431 C* 00 40 14.7081048888 -74 11 21.516513252     17.130   14.854 C 8 0
3 RAW 233 RC* 00 44 07.5089400696 -72 44 16.285999056   20.28 18.67   15.64 C 9 0
4 RAW 476 RC* 00 48 22.9516608504 -73 41 04.650133380 16.17 15.69 14.64   13.53 C 12 0
5 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
6 [TWM2009] EROS2-SMC-RCB-3 RC* 00 57 18.15 -72 42 35.2           ~ 18 0
7 SV* HV 12842 RC* 05 45 02.8825680504 -64 24 22.722012612     13.7     ~ 27 1

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