2014A&A...562A..24M

Query : 2014A&A...562A..24M

2014A&A...562A..24M - Astronomy and Astrophysics, volume 562A, 24-24 (2014/2-1)

Cool carbon stars in the halo and in dwarf galaxies: Hα, colours, and variability.

MAURON N., GIGOYAN K.S., BERLIOZ-ARTHAUD P. and KLOTZ A.

Abstract (from CDS):

The population of cool carbon (C) stars located far from the galactic plane is probably made of debris of small galaxies such as the Sagittarius dwarf spheroidal galaxy (Sgr), which are disrupted by the gravitational field of the Galaxy. We aim to know this population better through spectroscopy, 2MASS photometric colours, and variability data. When possible, we compared the halo results to C star populations in the Fornax dwarf spheroidal galaxy, Sgr, and the solar neighbourhood. We first present a few new discoveries of C stars in the halo and in Fornax. The number of spectra of halo C stars is now 125. Forty percent show Hα in emission. The narrow location in the JHK diagram of the halo C stars is found to differ from that of similar C stars in the above galaxies. The light curves of the Catalina and LINEAR variability databases were exploited to derive the pulsation periods of 66 halo C stars. A few supplementary periods were obtained with the TAROT telescopes. We confirm that the period distribution of the halo strongly resembles that of Fornax, and we found that it is very different from the C stars in the solar neighbourhood. There is a larger proportion of short-period Mira/SRa variables in the halo than in Sgr, but the survey for C stars in this dwarf galaxy is not complete, and the study of their variability needs to be continued to investigate the link between Sgr and the cool halo C stars.

Abstract Copyright: ∼

Journal keyword(s): stars: carbon - Galaxy: halo - Galaxy: stellar content

VizieR on-line data: <Available at CDS (J/A+A/562/A24): table1.dat table2.dat table5.dat tablea2.dat tablea4.dat>

Simbad objects: 167

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Number of rows : 167
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 [TI98] 0000+3021 C* 00 03 00.8638356984 +30 38 23.449431840       13.41   C-N 10 0
2 CRTS J001655.8-440040 C* 00 16 55.7848542144 -44 00 40.760302968   17.6 14.71     C 9 0
3 FASTT 2 C* 00 35 04.7905714008 +01 08 45.907886148     17.35     Ce 12 0
4 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11149 1
5 IRAS 01582+0931 C* 02 00 56.1395309856 +09 45 35.533310292       16.39   C-N 14 0
6 [BEM91] 30 C* 02 10 12.0647341920 -01 57 39.055747500   16.16 14.00     C-N 16 0
7 IRAS 02164+3537 C* 02 19 26.9567835720 +35 50 58.877038536           Ce 6 0
8 NAME Sagittarius Stream St* 02 22 +00.0           ~ 874 0
9 IRAS F02214+3716 C* 02 24 31.9812349344 +37 29 32.964361800           Ce 6 0
10 [DI87] V8 C* 02 37 40.5940398936 -34 20 08.057768424   21.2 19.1     C 3 0
11 2MASS J02383024-3445030 AB* 02 38 30.2416943040 -34 45 03.134040120   20.464 18.324   16.449 ~ 5 0
12 [LZM2008] For1 C* 02 38 50.5533597624 -34 40 31.928530800           C 8 0
13 2MASS J02385093-3416192 AB* 02 38 50.9427746544 -34 16 19.062589404   20.359 18.826     ~ 3 0
14 DK 8 C* 02 38 53.0892740112 -34 49 20.007480468   21.46 19.699 17.4 16.485 C 6 0
15 2MASS J02385547-3449166 AB* 02 38 55.4620571976 -34 49 16.674248136     17.735   15.464 ~ 5 0
16 [DI87] V28 C* 02 38 56.9957262360 -34 46 34.036451076   23.1 19.793   16.173 C 9 0
17 DK 7 C* 02 38 57.0378482136 -34 47 49.048131156   20.56 18.278   16.060 ~ 8 0
18 DK 11 AB* 02 38 59.9010098400 -34 45 26.884719036   20.13 18.26   16.54 ~ 5 0
19 IRAS 02360+3442 C* 02 39 04.8851908752 +34 55 07.537297800           Ce 5 0
20 2MASS J02390862-3427407 AB* 02 39 08.6281710648 -34 27 40.867315020   19.620 18.184     ~ 3 0
21 2MASS J02391128-3453021 V* 02 39 11.2885563936 -34 53 02.156175924     17.819   16.166 ~ 2 0
22 DK 30 AB* 02 39 12.0269659920 -34 37 41.438516484   20.2 18.310   16.306 ~ 7 0
23 [LZM2008] For2 C* 02 39 12.329 -34 32 45.00           C 8 0
24 2MASS J02392133-3423292 AB* 02 39 21.3363161760 -34 23 29.192813916   20.045 18.185   16.237 ~ 4 0
25 2MASS J02392984-3427232 AB* 02 39 29.8346236824 -34 27 23.108771736   20.0 17.947   15.797 ~ 6 0
26 DK 41 AB* 02 39 30.6503480976 -34 24 07.795622808   20.66 18.17   16.32 ~ 6 0
27 2MASS J02393145-3422586 AB* 02 39 31.4498880072 -34 22 58.680600384   20.082 18.16   16.28 ~ 5 0
28 DK 21 C* 02 39 37.3792518264 -34 36 26.904605544   22.565 20.062     C 8 0
29 2MASS J02393752-3425000 AB* 02 39 37.5107861904 -34 25 00.063933096   19.743 18.344     ~ 3 0
30 2MASS J02394011-3434024 AB* 02 39 40.1020318176 -34 34 02.373101760   20.05 18.15   16.36 ~ 5 0
31 2MASS J02394094-3432569 AB* 02 39 40.941 -34 32 56.92   20.071 18.268   16.267 ~ 4 0
32 2MASS J02394160-3435567 C* 02 39 41.6050824480 -34 35 56.826398544           ~ 5 0
33 2MASS J02394336-3413485 AB* 02 39 43.3658065512 -34 13 48.581596812   20.11 18.23     ~ 5 0
34 2MASS J02394408-3426101 AB* 02 39 44.0811195264 -34 26 10.039931232   20.074 18.294   16.193 ~ 4 0
35 WEL C2 C* 02 39 48.4396479323 -34 35 07.718064294   21.905 19.612     C 5 0
36 2MASS J02395144-3439126 AB* 02 39 51.4414149144 -34 39 12.600377642   19.5 18.305   16.467 ~ 5 0
37 [SRN97] Cluster 3 1444 C* 02 39 51.7887826104 -34 17 17.376278496   20.77 18.48     C 4 0
38 2MASS J02395200-3417123 AB* 02 39 51.9995796072 -34 17 12.422084460   20.28 18.33     ~ 4 0
39 DK 14 C* 02 39 53.8825441824 -34 44 02.796033192   21.89 19.39 19.1   C 5 0
40 WEL M11 AB* 02 39 58.6237012992 -34 25 27.940424376   20.242 18.652   16.156 M2S 6 0
41 NAME Fornax Dwarf Spheroidal G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1743 1
42 2MASS J02395951-3432432 AB* 02 39 59.5166521392 -34 32 43.277727156   19.917 17.97   16.15 ~ 5 0
43 2MASS J02400078-3418122 * 02 40 00.8007722976 -34 18 12.538068084   17.5   16.5   ~ 1 0
44 DK 48 C* 02 40 01.3670577720 -34 20 18.931265556   22.00 18.773   16.176 C 11 0
45 DK 25 AB* 02 40 01.8214139256 -34 44 03.946415712   20.212 18.793     ~ 5 0
46 DK 55 C* 02 40 02.5227232560 -34 27 42.581312712   21.70 19.386   16.279 C 8 0
47 DK 62 C* 02 40 02.7366417144 -34 31 48.872523288   21.11 19.351   15.998 C 9 0
48 DK 52 C* 02 40 06.6689367768 -34 23 22.257082824   21.39 18.06 17.93 18.15 C 12 0
49 2MASS J02400819-3426056 AB* 02 40 08.1943164624 -34 26 05.648674920   19.988 18.563   16.102 ~ 5 0
50 [DI87] V2 C* 02 40 09.4789156872 -34 06 25.609779504   21.4 18.3 17.07 16.75 C 6 0
51 WEL C10 C* 02 40 10.1745568752 -34 33 21.841179192   22.305 19.413 18.24 15.726 C 12 0
52 DK 60 C* 02 40 11.7971350536 -34 32 45.416038992   21.19 18.454   16.060 C3,2 9 0
53 WEL C12 C* 02 40 12.0903088248 -34 26 25.473648876     19.48     C 6 0
54 2MASS J02401246-3439057 AB* 02 40 12.4722351144 -34 39 05.785468704   20.499 19.016     ~ 4 0
55 2MASS J02401403-3423316 AB* 02 40 14.0504263200 -34 23 31.622450928   20.086 18.635     ~ 3 0
56 DK 65 C* 02 40 15.6290403816 -34 34 02.964090036   21.61 19.358   16.150 C 9 0
57 2MASS J02401595-3435293 AB* 02 40 15.9600054264 -34 35 29.309214696           ~ 2 0
58 2MASS J02401778-3427357 C* 02 40 17.7935878944 -34 27 35.805941712   21.93 19.987 19.80 16.642 C 8 0
59 WEL C9 C* 02 40 19.9492065456 -34 33 09.781467264   22.605 18.398   16.345 C 7 0
60 2MASS J02402267-3440373 AB* 02 40 22.6717966728 -34 40 37.311960684   20.106 18.222   16.170 ~ 5 0
61 2MASS J02402354-3415204 AB* 02 40 23.5520776392 -34 15 20.324335896   20.165 18.763     ~ 4 0
62 2MASS J02402389-3418108 AB* 02 40 23.9110186752 -34 18 10.796884344   20.132 18.704     ~ 3 0
63 DK 56 C* 02 40 25.0545115008 -34 28 58.410156828   20.87 18.536   16.347 C 9 0
64 2MASS J02403195-3420487 AB* 02 40 31.9619608104 -34 20 48.728251932   20.3 18.893   16.496 ~ 5 0
65 2MASS J02403668-3417137 AB* 02 40 36.6950855424 -34 17 13.634816928   20.292 18.806     ~ 3 0
66 2MASS J02403907-3426461 AB* 02 40 39.0661145592 -34 26 46.218781104   20.186 18.817     ~ 3 0
67 2MASS J02403957-3436095 AB* 02 40 39.5740511472 -34 36 09.555985440   20.089 18.674     ~ 3 0
68 2MASS J02404004-3429370 AB* 02 40 40.0460192208 -34 29 37.128318720   20.262 18.806     ~ 3 0
69 [SHS98] 143 C* 02 40 41.093 -34 23 54.91   20.553 19.044     C 3 0
70 2MASS J02405005-3425580 AB* 02 40 50.0475622848 -34 25 58.083534480   20.765 19.006     ~ 5 0
71 2MASS J02405288-3428303 * 02 40 52.8752169096 -34 28 30.531923832           K2-3 2 0
72 [DI87] V4 C* 02 40 53.3265775824 -34 12 13.166312400   20.5 17.81     C 9 0
73 2MASS J02405536-3427252 AB* 02 40 55.3703656800 -34 27 25.327258380   20.174 18.760     ~ 3 0
74 2MASS J02405687-3427093 AB* 02 40 56.8768825800 -34 27 09.391371732   19.972 18.580     ~ 3 0
75 [DDB2002] 25 C* 02 41 03.5576531520 -34 48 05.388235200   23.3 20.412 17.63 16.619 C 10 0
76 2MASS J02410593-3427318 AB* 02 41 05.9292214344 -34 27 31.874394636   20.317 18.825     ~ 3 0
77 2MASS J02412242-3411296 AB* 02 41 22.4180715096 -34 11 29.706246096           ~ 2 0
78 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7066 0
79 [MAG2004] 64 C* 03 00 11.3226497304 +16 49 40.185521040           C 5 0
80 IRAS 03242+1429 C* 03 26 59.9156324496 +14 39 57.010828140     14.93 16.8   C 13 0
81 [TI98] 0340+0701 C* 03 43 28.7842145904 +07 10 58.896828120           C-N 9 0
82 [MAG2004] 65 C* 03 48 28.1228236920 +16 57 03.333015036     15.47     C 9 0
83 [MAG2004] 88 C* 03 59 55.9628845176 +09 19 04.345385664           Ce 6 0
84 [MAG2004] 69 C* 04 26 38.7695090112 +14 25 16.066173468     15.87     C 9 0
85 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17434 0
86 IRAS 05287-1827 C* 05 30 53.2078512984 -18 25 24.592015128   20.2 14.04 14.10   C 8 0
87 L 595-22 Pe* 05 56 24.7419040752 -27 51 32.361761700   12.31 12.38     sdG 164 0
88 CRTS J062805.9-531105 C* 06 28 06.0567449592 -53 11 05.305406460   18.6 15.60 16.28 14.28 C 7 0
89 ALW Carina 2 C* 06 41 13.5287037312 -50 54 24.992876736     17.64   15.64 C 9 0
90 NAME Carina dSph G 06 41 36.7 -50 57 58   22.14 11.0 19.47   ~ 1125 0
91 [MCA82] C3 C* 06 41 41.4409941144 -50 58 08.067390384   18.43 17.48 15.86 15.48 C 15 0
92 [MCA82] C4 C* 06 41 44.4717361968 -51 00 20.916177552           C 12 0
93 CRTS J071218.3-633810 C* 07 12 18.5314022448 -63 38 09.377112300   18.2 15.47 15.32 14.02 C 6 0
94 [TI98] 0713+5016 C* 07 17 36.2470639608 +50 10 41.561688072     12.74 12.65   C-Ne 15 0
95 2MASS J07270358-6459123 C* 07 27 03.5893216272 -64 59 12.460006716   20.4   15.4 14.99 C 2 0
96 FBS 0729+269 C* 07 32 32.7259466880 +26 47 15.501452532     12.42 12.47   C-N 18 0
97 CRTS J075855.7+335837 C* 07 58 55.8952359192 +33 58 37.992111276     17.34     Ce 8 0
98 IRAS F08263+1833 C* 08 29 15.1222589472 +18 23 07.416972636   16.1 12.49 11.658   C-N 18 0
99 FBS 0826+109 C* 08 29 29.0210219352 +10 46 24.133118340   19.3 16.1     C-N 11 0
100 IRAS 08427+0338 C* 08 45 22.2783024144 +03 27 11.386332576     15.1     C 20 0
101 IRAS 08519-1149 C* 08 54 18.7113683952 -12 00 54.049806468   19.0 15.7 14.61   C 8 0
102 IRAS 08546+1732 C* 08 57 25.8366693168 +17 20 52.006027380       18.8   C 17 0
103 2MASS J09054635+2024381 C* 09 05 46.3602502896 +20 24 38.134249164           C 6 0
104 [MAG2004] 3 C* 09 15 05.2164586032 +19 17 37.726392588   15.9 14.29 13.3   C-N 14 0
105 HE 1008-0636 C* 10 10 36.9918327576 -06 51 13.652793972   16.9 12.70 12.024 11.407 C-N 14 0
106 [MAG2004] 4 C* 10 15 25.9317953712 -02 04 31.889288424   20.9       C 8 0
107 ALW Leo II 3 C* 11 13 20.6395655376 +22 11 16.297456380   21.9 18.28     C 16 0
108 [MAG2004] 7 C* 11 17 19.0019647920 -17 29 15.438398568   19.4   15.65   C 9 0
109 [MAG2004] 8 C* 12 09 25.0302175464 +15 16 18.296204016   17.8 14.31     C-N 12 0
110 [TI98] 1211-0844 C* 12 14 16.9465264368 -09 00 50.115536568   18.4 15.36     C-Ne 12 0
111 [TI98] 1225-0011 C* 12 27 40.0391611416 -00 27 50.684767560   19.4 15.40 14.2   C-N 18 0
112 2MASS J12382927-4056089 C* 12 38 29.2726491888 -40 56 09.104775432       19.6 18.48 C 3 0
113 [TI98] 1241+0237 C* 12 43 37.3026591408 +02 21 30.129777324           C-N 13 0
114 [MAG2004] 9 C* 12 49 04.7688372600 +13 20 35.437278408   19.3 15.19     C 8 0
115 [TI98] 1249+0146 C* 12 51 49.8690435048 +01 30 01.810880892     15.15 16.04 14.27 C-N: 19 0
116 IRAS 12560+1656 C* 12 58 33.5128517040 +16 40 12.241432956     13.57     C 23 0
117 2MASS J13015585+0836317 C* 13 01 55.8436004616 +08 36 31.734126288       17.2   C 4 0
118 [MAG2004] 91 C* 13 35 57.0852864744 +06 23 54.980319732     14.99     C-N 11 0
119 [TI98] 1339-0700 RS* 13 42 26.7982097112 -07 15 23.095730952   15.44 13.10     C-N 14 0
120 [MAG2004] 41 C* 13 47 23.0341847136 -34 47 23.428030056   17.7 14.64     C 6 0
121 [TI98] 1350+0101 C* 13 53 01.3164060408 +00 47 14.034024384     15.73     C-N: 10 0
122 [MAG2004] 10 C* 13 56 02.3720880216 -01 36 26.261403264   19.4 15.39     C 8 0
123 [TI98] 1429-0518 C* 14 32 28.7554651704 -05 31 17.686479252           C-N: 7 0
124 [MAG2004] 42 C* 14 37 58.3592727720 -04 13 36.102296892   17.3 15.12     C 10 0
125 2MASS J14392836+1929149 BD* 14 39 28.1499428599 +19 29 15.908790370           L1V 131 0
126 [MAG2004] 43 C* 14 46 31.0773068952 -00 55 00.352932024       15.231   Ce 13 0
127 [MAG2004] 92 C* 14 46 44.1943206264 +05 12 38.102124456     15.89     C 8 0
128 [MAG2004] 44 C* 14 57 26.9723480208 +05 16 03.363599316     17.78     Ce 6 0
129 [MAG2004] 12 C* 15 01 06.9238529976 -05 31 38.835791940   20.4       C 8 0
130 FBS 1502+359 C* 15 04 55.3025383512 +35 47 57.524543880     14.39     C-N 17 0
131 [TI98] 1511-0342 C* 15 13 41.5685220600 -03 53 48.003479844     15.44     C-N: 11 0
132 [MAG2004] 13 C* 15 15 11.0638630392 -13 32 27.984817032     16.20     C 10 0
133 V* V346 Ser C* 15 18 40.2515758008 +14 59 03.292217520   14.9 12.18 11.1   C-N 14 0
134 [TI98] 1519-0614 C* 15 22 36.5714267208 -06 25 34.287724812     15.77     C-N: 10 0
135 [MAG2004] 45 C* 15 22 44.4251705712 -12 37 49.434675672         14.49 C 7 0
136 Cl Lynga 7 OpC 16 11 03.65 -55 19 04.0           ~ 112 0
137 FBS 1615-048 C* 16 18 17.1132607440 -04 56 42.046633320   14.9   12.6   C-H 6 0
138 FBS 1618-087 C* 16 21 36.2704936536 -08 53 18.690546120       12.70 10.99 C-N 17 1
139 IRAS 16339-0317 C* 16 36 31.6979085528 -03 23 37.355764524     14.03   12.50 C 22 0
140 IRAS F17289+7010 C* 17 28 25.7502931824 +70 08 29.955809724   17.91 14.29 14.14   C-N 11 0
141 IRAS 18120+4530 C* 18 13 29.4527863032 +45 31 17.631861780       13.74   C-N 19 0
142 IRAS 18493+6213 C* 18 49 50.9220731304 +62 17 25.344641544   17.35 14.30 13.61   Ce 11 0
143 [IGI95] C2 C* 18 53 29.3785031976 -29 38 24.151220232   17.26   14.69 12.97 C 11 0
144 [WIC96] UKST 12 C* 18 54 24.2849614104 -30 25 10.495445052           C 8 0
145 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2187 2
146 [MAG2004] 52 C* 19 37 34.1400637944 -35 32 37.696582320     13.13     C 6 0
147 [MAG2004] 16 C* 19 42 19.0153439040 -35 19 37.715587176   18.6 15.29     C 6 0
148 [MAG2004] 17 C* 19 42 21.3135433584 -32 11 04.074572148   19.0   14.42   C 7 0
149 [MAG2004] 18 C* 19 48 50.6472719832 -30 58 31.871468100     17.48     C 10 0
150 [MAG2004] 19 C* 19 53 30.1692775680 -38 35 59.474318208   19.2 14.62 14.88   C 7 0
151 IRAS 20005+7737 C* 19 58 40.1647785600 +77 45 26.143533576           C 6 0
152 CRTS J200143.9-302447 C* 20 01 43.9911710040 -30 24 46.585252620   17.02 13.87 15.23 12.46 C 4 0
153 [MAG2004] 99 C* 20 03 03.8340374760 -19 49 03.974038788         13.28 Ce 8 0
154 2MASS J20042484-3006511 C* 20 04 24.8412580776 -30 06 51.087520512   16.81 14.87 14.62   C 3 0
155 YC Red 19 C* 20 18 18.8406534216 -66 50 58.045786764     13.5     C 8 0
156 IRAS 20173-0545 C* 20 20 00.4316010552 -05 35 50.655516612         14.59 C 6 0
157 CRTS J203347.6-463621 C* 20 33 47.6867886792 -46 36 20.597108508   16.13 12.80 12.5   C 4 0
158 [MAG2004] 82 C* 21 55 26.9835542160 +23 42 14.214539124           C 6 0
159 [MAG2004] 23 C* 22 05 14.5810586232 +00 08 45.849946524   18.1   13.6   C-J 9 0
160 [MAG2004] 24 C* 22 06 53.6728276464 -25 06 28.205022420   18.0 14.07     C 11 0
161 [MAG2004] 25 C* 22 17 09.9218987328 -26 07 03.384034752   18.4       C 9 0
162 [MAG2004] 83 C* 22 23 01.2013465944 +22 16 56.447521536     14.89     C 9 0
163 C* 3319 C* 22 26 19.3334533584 +26 03 38.413952568     11.78 12.34   C-Ne 19 0
164 [TI98] 2225-1401 C* 22 28 10.6628859864 -13 46 22.408857120   17.22 14.50     C-N 11 0
165 [MAG2004] 27 C* 23 19 35.5271779656 -18 56 23.950425804   17.5 14.39 14.47   C 8 0
166 2MASS J23444256+0909020 BD* 23 44 42.5450256206 +09 09 02.236529795           L1.0 6 0
167 NAME Local Group GrG ~ ~           ~ 8391 0

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