2017MNRAS.465.1699M

Query : 2017MNRAS.465.1699M

2017MNRAS.465.1699M - Mon. Not. R. Astron. Soc., 465, 1699-1710 (2017/February-3)

A survey of the Local Group of galaxies for symbiotic binary stars - I. First detection of symbiotic stars in M33.

MIKOLAJEWSKA J., SHARA M.M., CALDWELL N., ILKIEWICZ K. and ZUREK D.

Abstract (from CDS):

We present and discuss initial selection criteria and first results in M33 from a systematic search for extragalactic symbiotic stars. We show that the presence of diffuse ionized gas (DIG) emission can significantly contaminate the spectra of symbiotic star candidates. This important effect forces upon us a more stringent working definition of an extragalactic symbiotic star. We report the first detections and spectroscopic characterization of 12 symbiotic binaries in M33. We found that four of our systems contain carbon-rich giants. In another two of them, the giant seems to be a Zr-enhanced MS star, while the remaining six objects host M-type giants. The high number ratio of C to M giants in these binaries is consistent with the low metallicity of M33. The spatial and radial velocity distributions of these new symbiotic binaries are consistent with a wide range of progenitor star ages.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): surveys - binaries: symbiotic - stars: general - galaxies: individual: M33 - galaxies: individual: M33

Nomenclature: Fig. 3, Tables 1-4: M33SyS JHHMMSS.ss+DDMMSS.s N=12.

Simbad objects: 29

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Number of rows : 29
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
3 M33SyS J013219.75+303731.7 Sy* 01 32 19.7263376328 +30 37 31.524128040 20.837 21.629 21.131 20.364 19.629 K/M 2 0
4 M33SyS J013239.11+303836.5 Sy* 01 32 39.11 +30 38 36.5 23.64 23.60 22.87 21.59 20.74 CH 2 0
5 EQ J013300+303105 ? 01 33 00.51 +30 31 05.9           ~ 1 0
6 M33SyS J013303.27+303528.3 Sy* 01 33 03.2344537632 +30 35 28.074455700 22.193 23.007 21.943 20.549 19.511 CN 2 0
7 M33SyS J013311.10+301528.2 Sy* 01 33 11.036 +30 15 27.79     23.25 21.53 20.32 M5 2 0
8 M33SyS J013327.01+304045.8 Sy* 01 33 27.01 +30 40 45.8     23.31 22.13 20.59 Me 2 0
9 M33SyS J013334.95+305108.3 Sy* 01 33 34.95 +30 51 08.3     23.49 21.68 20.44 M 2 0
10 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
11 M33SyS J013417.72+304119.5 Sy* 01 34 17.72 +30 41 19.5     23.17 21.57 20.33 M 2 0
12 M33SyS J013430.14+303346.0 Sy* 01 34 30.122 +30 33 45.88 22.48 23.13 22.65 21.32 20.17 M2 2 0
13 M33SyS J013435.17+303409.4 Sy* 01 34 35.140 +30 34 09.49     23.79 22.14 20.59 CN 2 0
14 M33SyS J013449.50+304736.9 Sy* 01 34 49.493 +30 47 37.11 22.86 23.19 21.48 20.30 19.46 CN 2 0
15 M33SyS J013457.79+310054.2 Sy* 01 34 57.769 +31 00 54.42     23.52 21.95 20.54 M4 2 0
16 M33SyS J013510.81+305146.8 Sy* 01 35 10.791 +30 51 46.51 22.66 23.29 22.47 21.14 20.29 M4 2 0
17 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
18 LHA 120-N 19 Sy* 05 03 23.7476608680 -67 56 33.635279796     16.4 15.34 14.268 M4 20 0
19 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
20 MACHO 15.10552.951 Sy* 05 45 19.5266166456 -71 16 06.821141160 16.855 17.413 17.055 15.69 16.957 ~ 44 0
21 SV* HV 12671 Sy* 05 48 43.4314341384 -67 36 10.308807828   16.706 15.51 15.17 14.065 B8III[e] 48 0
22 V* T CrB Sy* 15 59 30.1622265912 +25 55 12.613382940   11.516 10.247 9.70   M3IIIe_sh 810 0
23 WRAY 16-208 Sy* 16 14 01.1094201648 -56 59 28.043753388     16.00     M8/9e 93 1
24 PN M 2-9 PN 17 05 37.96152 -10 08 32.5068           ~ 532 0
25 V* RS Oph Sy* 17 50 13.1591484960 -06 42 28.480729788   11.884 10.776 11.228   K5.5/M0IIIe 1163 0
26 PN H 1-45 Mi* 17 58 21.8662836432 -28 14 52.195092648     15.602   12.494 ~ 75 0
27 V* AR Pav Sy* 18 20 27.8820649248 -66 04 42.928979808   11.36 7.40     B1 166 0
28 V* CH Cyg Sy* 19 24 33.0657463320 +50 14 29.095038672 8.14 8.77 7.08   5.345 M7IIIab+Be 798 0
29 NAME Local Group GrG ~ ~           ~ 9325 0

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