2021A&A...650A.146M


Query : 2021A&A...650A.146M

2021A&A...650A.146M - Astronomy and Astrophysics, volume 650A, 146-146 (2021/6-1)

A search for distant, pulsating red giants in the southern halo.

MAURON N., GIGOYAN K.S., KENDALL T.R. and HAMBLETON K.M.

Abstract (from CDS):

To investigate the asymptotic giant branch (AGB) population in the Galactic halo, we search for pulsating AGB stars at a heliocentric distance D>50kpc. Our research is based on the Catalina Southern Survey (CSS) catalogue of variables, comprising 1286 long-period variables (LPVs) with δ < -20°. We first focus on the 77 stars in the cap |b|>30° for which spectral M-type or C-type classification can be derived from Hamburg-ESO objective prism spectra. Most of these are oxygen-rich (M-type) and very few are carbon rich. The periods are in the range 100-500 days, and CSS amplitudes are up to 3 mag. In this small sample, no halo AGB star is fainter than Ks0=12.5. This may be due to the scarcity of AGBs in the outer halo, or insufficient instrumental depth. Leaving aside spectral information, we then searched for even fainter pulsators (Ks>12.5) in the entire CSS catalogue. Gaia astrometry makes it possible to identify some contaminants. Our final result is the identification of ten candidate distant LPVs. If these ten stars obey the fundamental mode K-band period-luminosity relation used for Miras and small-amplitude Miras, their distances are between 50 and 120kpc from the Sun. In a diagram showing distance versus Gaia tangential velocity, these ten stars have positions consistent with that of other objects in the halo, such as globular clusters and dwarf galaxies. We detect some underluminous AGBs that deserve further study. Finally, the halo LPVs ressemble the slow redder variable of globular clusters when colour and periods are compared.

Abstract Copyright: © N. Mauron et al. 2021

Journal keyword(s): stars: late-type - Galaxy: halo

VizieR on-line data: <Available at CDS (J/A+A/650/A146): table5.dat>

Simbad objects: 121

goto Full paper

goto View the references in ADS

Number of rows : 121
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 SB 959 Mi* 00 12 34.2489268680 -22 55 16.783918716   14.66 12.88 15.91   M1III 11 0
2 CRTS J001655.8-440040 C* 00 16 55.7848542144 -44 00 40.760302968   17.6 14.71     C 9 0
3 Cl* NGC 104 SAW V13 LP* 00 22 58.4238789672 -72 06 56.160100332   14.147 12.572 11.708   ~ 26 0
4 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 3889 0
5 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11043 1
6 CRTS J005958.9-332834 C* 00 59 58.9374001080 -33 28 35.163051060   20.20 16.23 16.53 16.70 ~ 17 0
7 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1343 4
8 CRTS J010120.8-335304 Mi* 01 01 20.8403106480 -33 53 04.776205632     16.18     ~ 6 0
9 [KID97] C0059-6534 C* 01 01 53.4552156696 -65 18 23.298924312   18.06 15.71 15.50 14.65 C 6 0
10 * omi Cet Mi* 02 19 20.79210 -02 58 39.4956   7.63 6.53 5.03   M5-9IIIe+DA 1522 0
11 NAME Sagittarius Stream St* 02 22 +00.0           ~ 865 0
12 CRTS J022331.7-403419 RV* 02 23 31.8318089904 -40 34 17.774971608   13.91 12.06 12.32   ~ 4 0
13 CRTS J023241.2-325513 LP* 02 32 41.0740622593 -32 55 13.431836112   15.402 13.743 12.973   ~ 5 0
14 DK 66 AB* 02 39 15.3331992816 -34 15 08.334778680   21.615 17.71     ~ 8 0
15 NAME Fornax Dwarf Spheroidal G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1729 1
16 CRTS J030456.2-451735 Mi* 03 04 56.3066794104 -45 17 35.691714262   15.495 13.776 13.844   ~ 6 0
17 CRTS J032129.2-273335 Mi* 03 21 29.2481443488 -27 33 35.753076596   15.861 14.193 14.290   ~ 8 0
18 CRTS J033803.2-634827 LP* 03 38 03.2362429406 -63 48 27.034306222       15.367   ~ 4 0
19 CRTS J034628.8-555713 LP* 03 46 28.7567160807 -55 57 14.257320812   15.847 14.048 14.653   ~ 5 0
20 CRTS J043240.0-681635 Mi* 04 32 40.0089234240 -68 16 36.715503504     15.52     ~ 6 0
21 CRTS J043604.1-634750 LP* 04 36 04.2727669491 -63 47 49.962573634           ~ 2 0
22 WOH S 24 Mi* 04 40 26.0279304528 -71 39 42.368624388     14.85     M 8 0
23 CRTS J044127.4-633125 LP* 04 41 27.3986781859 -63 31 25.790867571           ~ 5 0
24 CRTS J044238.8-721315 LP* 04 42 38.9597770392 -72 13 16.373686620     16.44 15.49   M 6 0
25 CRTS J044307.4-634539 LP* 04 43 07.4595092337 -63 45 40.009186354           ~ 4 0
26 CRTS J044714.7-622118 LP* 04 47 14.7368685317 -62 21 19.935929824       15.650   ~ 3 0
27 CRTS J045116.6-240715 Mi* 04 51 16.6615687388 -24 07 16.930788608   15.990 14.178 12.764   ~ 6 0
28 CRTS J045631.0-312933 AB* 04 56 31.1586748502 -31 29 32.904156159   16.78 14.58 14.99   ~ 6 0
29 CRTS J050449.9-401314 * 05 04 50.1017026870 -40 13 16.529063140           ~ 2 1
30 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17264 1
31 V* SS Col Mi* 05 41 43.3570420368 -38 56 59.644290336           ~ 5 0
32 CRTS J054202.5-553828 LP* 05 42 02.5970142028 -55 38 28.201472269       15.291   ~ 4 0
33 CRTS J055000.3-572504 Mi* 05 50 00.2197065832 -57 25 05.582508863           ~ 4 0
34 IRAS 05523-4235 Mi* 05 53 51.6415200816 -42 35 03.353000892     12.12 13.04   ~ 8 0
35 CRTS J060912.1-471720 LP* 06 09 12.0040783708 -47 17 20.817434741           ~ 2 0
36 CRTS J092758.1-343339 LP* 09 27 58.2270630522 -34 33 38.612833717           ~ 3 0
37 CRTS J101745.2-291635 LP* 10 17 45.2823473419 -29 16 35.254054639           ~ 4 0
38 V* V439 Hya Mi* 10 44 07.4472512976 -27 26 42.182386764   13.8 11.75     ~ 11 0
39 CRTS J105654.9-253108 LP* 10 56 54.9747860695 -25 31 09.068204446   16.557 14.974 15.202   ~ 5 0
40 CRTS J111844.9-281144 Mi* 11 18 45.0643957180 -28 11 47.126240235   14.570 12.870 12.088   ~ 6 0
41 CRTS J114502.0-225341 LP* 11 45 02.0528864560 -22 53 41.312111385   16.530 14.772 13.725   ~ 6 0
42 CRTS J115551.0-395615 LP* 11 55 50.8363893160 -39 56 17.861238634   15.853 14.131 13.765   ~ 4 0
43 CRTS J121850.3-271748 LP* 12 18 50.3586655035 -27 17 47.924668834   16.162 14.353 13.718   ~ 5 0
44 V* BL Hya Mi* 12 25 32.3872504656 -31 19 03.982013976     12.25 12.72   ~ 12 0
45 CRTS J122825.2-322403 LP* 12 28 25.3016212514 -32 24 01.888844228   15.295 13.539 13.022   ~ 6 0
46 CRTS J123522.6-295052 LP* 12 35 22.7629743886 -29 50 52.825819014   15.606 14.003 13.696   ~ 4 0
47 V* V473 Cen Mi* 12 50 37.2220850040 -31 13 01.294716324     11.29 12.73   ~ 10 0
48 V* EP Hya Mi* 12 51 44.0461083024 -26 46 44.303186820       10.39   ~ 11 0
49 CRTS J125145.5-264632 * 12 51 45.5593879732 -26 46 31.954817960   15.931 14.939 14.740   ~ 2 1
50 CRTS J130700.8-240530 Mi* 13 07 00.8563181784 -24 05 31.747558380           M8III 6 0
51 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3402 0
52 IRAS 13269-2329 Mi* 13 29 38.8802545488 -23 45 03.637714644     12.44     ~ 10 0
53 V* V664 Cen Mi* 13 41 46.5045290472 -30 30 18.893241900     11.33 16.06   M 16 0
54 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2470 0
55 CRTS J134532.2-323354 LP* 13 45 32.3285767293 -32 33 53.690670626   15.038 13.494 12.866   ~ 4 0
56 CRTS J134901.4-282930 * 13 49 01.6002526258 -28 29 28.808572673   15.554 14.611 14.508   ~ 2 1
57 V* W Hya Mi* 13 49 02.0018313132 -28 22 03.532006894   8.97 7.70     M7.5-9e 640 0
58 CRTS J134902.4-283037 * 13 49 02.6358758540 -28 30 35.113892028           ~ 2 1
59 CRTS J135224.2-314452 Mi* 13 52 24.2835759744 -31 44 52.374431292     16.92     ~ 4 0
60 V* V557 Hya Mi* 13 53 32.7614544024 -29 05 42.160066584   14.97 13.34 15.01   ~ 11 0
61 CRTS J135643.9-253214 * 13 56 43.9865530940 -25 32 14.558051449           ~ 2 1
62 V* FT Hya Mi* 13 56 45.1416808656 -25 32 42.842424768   13.89 12.61 10.76   ~ 13 0
63 CRTS J135645.1-253354 * 13 56 45.1435503382 -25 33 54.711736733           ~ 2 1
64 V* TW Cen Mi* 13 57 43.1806720944 -31 04 11.044795944   10.16 9.51 8.55   M6-8Ib-II:e 33 0
65 CRTS J135743.5-310619 * 13 57 43.4968077167 -31 06 19.854068946         16.355 ~ 2 1
66 CRTS J135744.8-310321 * 13 57 44.8486479956 -31 03 21.148518417   16.134 15.418 15.548   ~ 2 1
67 V* FQ Hya Mi* 13 59 06.8045590776 -25 51 44.025374916       12.07   ~ 14 0
68 CRTS J135906.8-255118 * 13 59 07.0469618069 -25 51 18.713418233   16.432 15.377 15.303   ~ 2 1
69 CRTS J141722.8-225015 LP* 14 17 22.9460937414 -22 50 15.016962197     13.637 12.779   ~ 5 0
70 IRAS 14160-2140 LP* 14 18 51.3549968424 -21 54 45.610486416     11.99 12.78   ~ 5 0
71 CRTS J143121.7-364954 LP* 14 31 21.7423104846 -36 49 53.874660028           ~ 3 0
72 V* GH Lib Mi* 14 36 07.8208175592 -24 21 50.804156412   12.5 11.23 11.90   ~ 17 1
73 CRTS J143728.5-201916 * 14 37 28.6151301297 -20 19 14.997494255       16.211   ~ 2 1
74 V* LY Lib Mi* 14 37 29.1340246608 -20 19 41.663827416     11.11 12.21   ~ 13 0
75 NAME UMi Galaxy G 15 09 11.34 +67 12 51.7   13.60 10.6     ~ 1343 0
76 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 1967 0
77 CRTS J152046.4-253300 LP* 15 20 46.3642843133 -25 33 01.708682593   17.123 15.584 15.461   ~ 2 0
78 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2183 0
79 NAME Sgr Arm PoG 19 00 -30.0           ~ 632 1
80 CRTS J200909.2-222506 LP* 20 09 09.2712600288 -22 25 05.991549960   14.81 12.953 11.70 9.97 ~ 8 0
81 CRTS J200915.9-572029 * 20 09 15.8067583824 -57 20 29.595770268       15.433   ~ 2 1
82 CRTS J200916.0-571902 PM* 20 09 15.9226994021 -57 19 02.549140675       15.964   ~ 2 1
83 V* BR Pav Mi* 20 09 16.8209383272 -57 19 54.320396340   11.56 10.21     ~ 8 0
84 V* CO Sge Mi* 20 14 08.0576620248 +17 40 55.609731984           M5e 7 0
85 CRTS J202426.2-533631 LP* 20 24 26.4071622972 -53 36 31.244447076       12.000   ~ 4 0
86 CRTS J203352.1-525140 LP* 20 33 52.2238473516 -52 51 40.191482084   14.493 12.849 12.635   ~ 4 0
87 V* CV Mic Mi* 21 14 45.4833023784 -27 58 41.966346720     11.85     ~ 8 0
88 V* DM Pav Mi* 21 20 53.8801172280 -61 34 27.815225952     11.58     ~ 14 0
89 IRAS 21236-3717 Mi* 21 26 50.9280608280 -37 03 49.859741736     11.78     ~ 5 0
90 CRTS J212716.3-305157 C* 21 27 16.4261203512 -30 51 57.301656516     14.29   12.76 C 5 0
91 V* X Ind Mi* 21 30 28.3931685408 -53 57 18.630771120   10.56 9.38     M2e 18 0
92 CRTS J213033.1-535749 * 21 30 33.1333716281 -53 57 49.200243236           ~ 3 1
93 CRTS J213053.9-282724 LP* 21 30 54.0632919180 -28 27 23.285889720   16.172 14.766 14.554   ~ 3 0
94 M 2 GlC 21 33 27.02 -00 49 23.7     6.25     ~ 1026 1
95 CRTS J213953.4-460748 LP* 21 39 53.4376836889 -46 07 49.935153577   15.511 13.830 13.145   ~ 3 0
96 CRTS J214206.6-285428 LP* 21 42 06.7274017257 -28 54 26.933780524   17.198 15.507 14.890   ~ 6 0
97 CRTS J214341.1-341429 AB* 21 43 41.1420873216 -34 14 31.114777632     14.78 15.53   ~ 5 0
98 CRTS J214402.8-502213 LP* 21 44 02.9253934881 -50 22 15.303996851   18.408 16.414     ~ 4 0
99 CRTS J214535.7-345942 LP* 21 45 35.7617142512 -34 59 42.931321864       15.151   ~ 3 0
100 CRTS J215820.0-340605 LP* 21 58 19.9315064856 -34 06 07.451165376   15.7 14.30     ~ 4 0
101 ASAS J220352-5933.0 Mi* 22 03 52.3370340504 -59 33 00.978120072     11.94   11.298 ~ 15 0
102 [MAG2004] 24 C* 22 06 53.6728276464 -25 06 28.205022420   18.0 14.07     C 11 0
103 CRTS J220821.6-291754 LP* 22 08 21.6463128273 -29 17 54.364529862           ~ 6 0
104 CRTS J220922.3-353037 Mi* 22 09 22.3435002815 -35 30 36.649671069   16.302 14.380 14.119   ~ 6 0
105 CRTS J221308.6-404330 LP* 22 13 08.7772128793 -40 43 28.585686148   16.674 15.094     ~ 2 0
106 CRTS J222001.4-345840 LP* 22 20 01.5020423618 -34 58 39.825104090   16.696 14.878 14.663   ~ 3 0
107 CRTS J222006.6-235509 LP* 22 20 06.6105646924 -23 55 10.336671496   17.833 16.138 15.986   ~ 3 0
108 CRTS J222338.9-283247 LP* 22 23 39.0525863962 -28 32 46.901570388   17.031 15.405 14.670   ~ 4 0
109 CRTS J222632.9-340406 RB? 22 26 32.7655273008 -34 04 08.504853240   16.4 14.71     M 7 0
110 CRTS J223145.0-233246 Mi* 22 31 45.1366105128 -23 32 45.855944700           M3IIIe 7 0
111 V* VY Gru Mi* 22 32 30.4559276496 -46 53 13.534246608     12.49   10.64 M6 13 0
112 CRTS J223621.1-324505 LP* 22 36 21.1369137650 -32 45 04.711330041   16.635 14.929 14.096   ~ 3 0
113 CRTS J223851.2-265607 LP* 22 38 51.3898114372 -26 56 06.063023584   15.747 14.019 14.644   ~ 4 0
114 CRTS J224311.1-413113 * 22 43 11.0690054016 -41 31 12.940750011           ~ 3 1
115 V* DS Gru Mi* 22 43 11.5506619296 -41 31 58.397813976     9.6     M 11 0
116 CRTS J230418.1-405245 LP* 23 04 18.1788433511 -40 52 44.959146278   16.924 15.498 15.046   ~ 3 0
117 V* RU Phe Mi* 23 28 08.6106647376 -47 27 27.495132732   12.47 11.30 11.44   M1e 13 0
118 CRTS J232809.0-472638 * 23 28 09.1079223834 -47 26 38.781951296           ~ 2 1
119 V* R Phe Mi* 23 56 27.5567081328 -49 47 12.603031980   10.580 7.50 9.93 8.692 M4/5(III)e 44 0
120 CRTS J235629.5-494633 * 23 56 29.5527613904 -49 46 33.331115793           ~ 2 1
121 CRTS J235855.3-430054 Mi* 23 58 55.4464775023 -43 00 53.639055282           ~ 5 0

To bookmark this query, right click on this link: simbad:objects in 2021A&A...650A.146M and select 'bookmark this link' or equivalent in the popup menu